Add compiling option for building time.

Fix rtt port issues.

39 files changed, 643 insertions, 139 deletions

diff --git a/bsp/nuvoton/libraries/m480/Device/Nuvoton/M480/Include/clk_reg.h b/bsp/nuvoton/libraries/m480/Device/Nuvoton/M480/Include/clk_reg.h
index f9eb61db1e..68016d805c 100644
--- a/bsp/nuvoton/libraries/m480/Device/Nuvoton/M480/Include/clk_reg.h
+++ b/bsp/nuvoton/libraries/m480/Device/Nuvoton/M480/Include/clk_reg.h
@@ -611,6 +611,10 @@ typedef struct
      * |        |          |0 = 12 MHz internal high speed RC oscillator (HIRC) clock is not stable or disabled.
      * |        |          |1 = 12 MHz internal high speed RC oscillator (HIRC) clock is stable and enabled.
      * |        |          |Note: This bit is read only.
+     * |[6]     |HIRC48MSTB|HIRC 48MHz Clock Source Stable Flag (Read Only)
+     * |        |          |0 = 48 MHz internal high speed RC oscillator (HIRC) clock is not stable or disabled.
+     * |        |          |1 = 48 MHz internal high speed RC oscillator (HIRC) clock is stable and enabled.
+     * |        |          |Note: This bit is read only.
      * |[7]     |CLKSFAIL  |Clock Switching Fail Flag (Read Only)
      * |        |          |This bit is updated when software switches system clock source
      * |        |          |If switch target clock is stable, this bit will be set to 0
@@ -1482,6 +1486,9 @@ typedef struct
 #define CLK_STATUS_HIRCSTB_Pos           (4)                                               /*!< CLK_T::STATUS: HIRCSTB Position        */
 #define CLK_STATUS_HIRCSTB_Msk           (0x1ul << CLK_STATUS_HIRCSTB_Pos)                 /*!< CLK_T::STATUS: HIRCSTB Mask            */
 
+#define CLK_STATUS_HIRC48MSTB_Pos        (6)                                               /*!< CLK_T::STATUS: HIRC48MSTB Position     */
+#define CLK_STATUS_HIRC48MSTB_Msk        (0x1ul << CLK_STATUS_HIRC48MSTB_Pos)              /*!< CLK_T::STATUS: HIRC48MSTB Mask         */
+
 #define CLK_STATUS_CLKSFAIL_Pos          (7)                                               /*!< CLK_T::STATUS: CLKSFAIL Position       */
 #define CLK_STATUS_CLKSFAIL_Msk          (0x1ul << CLK_STATUS_CLKSFAIL_Pos)                /*!< CLK_T::STATUS: CLKSFAIL Mask           */
 
diff --git a/bsp/nuvoton/libraries/m480/StdDriver/inc/nu_ccap.h b/bsp/nuvoton/libraries/m480/StdDriver/inc/nu_ccap.h
index edae144eb9..a7927f36b7 100644
--- a/bsp/nuvoton/libraries/m480/StdDriver/inc/nu_ccap.h
+++ b/bsp/nuvoton/libraries/m480/StdDriver/inc/nu_ccap.h
@@ -81,8 +81,6 @@ extern "C"
 #define CCAP_INT_ADDRMIEN_ENABLE    (0x1ul<<CCAP_INT_ADDRMIEN_Pos)    /*!< VININT setting for Memory Address Match Interrupt enable  \hideinitializer */
 #define CCAP_INT_MDIEN_ENABLE       (0x1ul<<CCAP_INT_MDIEN_Pos)       /*!< VININT setting for Motion Detection Output Finish Interrupt Enable enable  \hideinitializer */
 
-
-static uint32_t u32EscapeFrame = 0;
 /*---------------------------------------------------------------------------------------------------------*/
 /*  Define Error Code                                                                                      */
 /*---------------------------------------------------------------------------------------------------------*/
diff --git a/bsp/nuvoton/libraries/m480/StdDriver/inc/nu_epwm.h b/bsp/nuvoton/libraries/m480/StdDriver/inc/nu_epwm.h
index 3e9a673467..01557f8054 100644
--- a/bsp/nuvoton/libraries/m480/StdDriver/inc/nu_epwm.h
+++ b/bsp/nuvoton/libraries/m480/StdDriver/inc/nu_epwm.h
@@ -190,6 +190,14 @@ extern "C"
 #define EPWM_CLKSRC_TIMER2                        (3U)    /*!< EPWM Clock source selects to TIMER2 overflow \hideinitializer */
 #define EPWM_CLKSRC_TIMER3                        (4U)    /*!< EPWM Clock source selects to TIMER3 overflow \hideinitializer */
 
+/*---------------------------------------------------------------------------------------------------------*/
+/*  Fault Detect Clock Source Select Constant Definitions                                                  */
+/*---------------------------------------------------------------------------------------------------------*/
+#define EPWM_FDCTL_FDCKSEL_CLK_DIV_1              (0UL << EPWM_FDCTL0_FDCKSEL_Pos)    /*!<  Fault detect clock selects to fault detect clock divided by 1 \hideinitializer */
+#define EPWM_FDCTL_FDCKSEL_CLK_DIV_2              (1UL << EPWM_FDCTL0_FDCKSEL_Pos)    /*!<  Fault detect clock selects to fault detect clock divided by 2 \hideinitializer */
+#define EPWM_FDCTL_FDCKSEL_CLK_DIV_4              (2UL << EPWM_FDCTL0_FDCKSEL_Pos)    /*!<  Fault detect clock selects to fault detect clock divided by 4 \hideinitializer */
+#define EPWM_FDCTL_FDCKSEL_CLK_DIV_8              (3UL << EPWM_FDCTL0_FDCKSEL_Pos)    /*!<  Fault detect clock selects to fault detect clock divided by 8 \hideinitializer */
+
 
 /*@}*/ /* end of group EPWM_EXPORTED_CONSTANTS */
 
@@ -542,6 +550,8 @@ void EPWM_Stop(EPWM_T *epwm, uint32_t u32ChannelMask);
 void EPWM_ForceStop(EPWM_T *epwm, uint32_t u32ChannelMask);
 void EPWM_EnableADCTrigger(EPWM_T *epwm, uint32_t u32ChannelNum, uint32_t u32Condition);
 void EPWM_DisableADCTrigger(EPWM_T *epwm, uint32_t u32ChannelNum);
+int32_t EPWM_EnableADCTriggerPrescale(EPWM_T *epwm, uint32_t u32ChannelNum, uint32_t u32Prescale, uint32_t u32PrescaleCnt);
+void EPWM_DisableADCTriggerPrescale(EPWM_T *epwm, uint32_t u32ChannelNum);
 void EPWM_ClearADCTriggerFlag(EPWM_T *epwm, uint32_t u32ChannelNum, uint32_t u32Condition);
 uint32_t EPWM_GetADCTriggerFlag(EPWM_T *epwm, uint32_t u32ChannelNum);
 void EPWM_EnableDACTrigger(EPWM_T *epwm, uint32_t u32ChannelNum, uint32_t u32Condition);
@@ -607,6 +617,18 @@ void EPWM_SetBrakePinSource(EPWM_T *epwm, uint32_t u32BrakePinNum, uint32_t u32S
 void EPWM_SetLeadingEdgeBlanking(EPWM_T *epwm, uint32_t u32TrigSrcSel, uint32_t u32TrigType, uint32_t u32BlankingCnt, uint32_t u32BlankingEnable);
 uint32_t EPWM_GetWrapAroundFlag(EPWM_T *epwm, uint32_t u32ChannelNum);
 void EPWM_ClearWrapAroundFlag(EPWM_T *epwm, uint32_t u32ChannelNum);
+void EPWM_EnableFaultDetect(EPWM_T *epwm, uint32_t u32ChannelNum, uint32_t u32AfterPrescaler, uint32_t u32ClkSel);
+void EPWM_DisableFaultDetect(EPWM_T *epwm, uint32_t u32ChannelNum);
+void EPWM_EnableFaultDetectOutput(EPWM_T *epwm, uint32_t u32ChannelNum);
+void EPWM_DisableFaultDetectOutput(EPWM_T *epwm, uint32_t u32ChannelNum);
+void EPWM_EnableFaultDetectDeglitch(EPWM_T *epwm, uint32_t u32ChannelNum, uint32_t u32DeglitchSmpCycle);
+void EPWM_DisableFaultDetectDeglitch(EPWM_T *epwm, uint32_t u32ChannelNum);
+void EPWM_EnableFaultDetectMask(EPWM_T *epwm, uint32_t u32ChannelNum, uint32_t u32MaskCnt);
+void EPWM_DisableFaultDetectMask(EPWM_T *epwm, uint32_t u32ChannelNum);
+void EPWM_EnableFaultDetectInt(EPWM_T *epwm, uint32_t u32ChannelNum);
+void EPWM_DisableFaultDetectInt(EPWM_T *epwm, uint32_t u32ChannelNum);
+void EPWM_ClearFaultDetectInt(EPWM_T *epwm, uint32_t u32ChannelNum);
+uint32_t EPWM_GetFaultDetectInt(EPWM_T *epwm, uint32_t u32ChannelNum);
 
 /*@}*/ /* end of group EPWM_EXPORTED_FUNCTIONS */
 
diff --git a/bsp/nuvoton/libraries/m480/StdDriver/inc/nu_usci_uart.h b/bsp/nuvoton/libraries/m480/StdDriver/inc/nu_usci_uart.h
index 098fd319f4..e1402a1911 100644
--- a/bsp/nuvoton/libraries/m480/StdDriver/inc/nu_usci_uart.h
+++ b/bsp/nuvoton/libraries/m480/StdDriver/inc/nu_usci_uart.h
@@ -409,6 +409,55 @@ extern "C"
 #define UUART_CLR_WAKEUP_FLAG(uuart)    ((uuart)->WKSTS = UUART_WKSTS_WKF_Msk)
 
 /**
+ *    @brief      Trigger RX PDMA function.
+ *
+ *    @param[in]  uuart The pointer of the specified USCI_UART module.
+ *
+ *    @return     None.
+ *
+ *    @details    Set RXPDMAEN bit of UUART_PDMACTL register to enable RX PDMA transfer function.
+ *    \hideinitializer
+ */
+#define UUART_TRIGGER_RX_PDMA(uuart)   ((uuart)->PDMACTL |= UUART_PDMACTL_RXPDMAEN_Msk|UUART_PDMACTL_PDMAEN_Msk)
+
+/**
+ *    @brief      Trigger TX PDMA function.
+ *
+ *    @param[in]  uuart The pointer of the specified USCI_UART module.
+ *
+ *    @return     None.
+ *
+ *    @details    Set TXPDMAEN bit of UUART_PDMACTL register to enable TX PDMA transfer function.
+ *    \hideinitializer
+ */
+#define UUART_TRIGGER_TX_PDMA(uuart)   ((uuart)->PDMACTL |= UUART_PDMACTL_TXPDMAEN_Msk|UUART_PDMACTL_PDMAEN_Msk)
+
+/**
+ *    @brief      Disable RX PDMA transfer.
+ *
+ *    @param[in]  uuart The pointer of the specified USCI_UART module.
+ *
+ *    @return     None.
+ *
+ *    @details    Clear RXPDMAEN bit of UUART_PDMACTL register to disable RX PDMA transfer function.
+ *    \hideinitializer
+ */
+#define UUART_DISABLE_RX_PDMA(uuart) ( (uuart)->PDMACTL &= ~UUART_PDMACTL_RXPDMAEN_Msk )
+
+/**
+ *    @brief      Disable TX PDMA transfer.
+ *
+ *    @param[in]  uuart The pointer of the specified USCI_UART module.
+ *
+ *    @return     None.
+ *
+ *    @details    Clear TXPDMAEN bit of UUART_PDMACTL register to disable TX PDMA transfer function.
+ *    \hideinitializer
+ */
+#define UUART_DISABLE_TX_PDMA(uuart) ( (uuart)->PDMACTL &= ~UUART_PDMACTL_TXPDMAEN_Msk )
+
+
+/**
  *    @brief        Enable specified USCI_UART PDMA function
  *
  *    @param[in]    uuart      The pointer of the specified USCI_UART module
diff --git a/bsp/nuvoton/libraries/m480/StdDriver/lib/libstddriver_gcc.a b/bsp/nuvoton/libraries/m480/StdDriver/lib/libstddriver_gcc.a
index 3eaf2920f2..e3fba2d475 100644
--- a/bsp/nuvoton/libraries/m480/StdDriver/lib/libstddriver_gcc.a
+++ b/bsp/nuvoton/libraries/m480/StdDriver/lib/libstddriver_gcc.a
diff --git a/bsp/nuvoton/libraries/m480/StdDriver/lib/libstddriver_iar.a b/bsp/nuvoton/libraries/m480/StdDriver/lib/libstddriver_iar.a
index 4b30da25fa..e1e77aeeea 100644
--- a/bsp/nuvoton/libraries/m480/StdDriver/lib/libstddriver_iar.a
+++ b/bsp/nuvoton/libraries/m480/StdDriver/lib/libstddriver_iar.a
diff --git a/bsp/nuvoton/libraries/m480/StdDriver/lib/libstddriver_keil.lib b/bsp/nuvoton/libraries/m480/StdDriver/lib/libstddriver_keil.lib
index 561e72e1e3..60caa8624d 100644
--- a/bsp/nuvoton/libraries/m480/StdDriver/lib/libstddriver_keil.lib
+++ b/bsp/nuvoton/libraries/m480/StdDriver/lib/libstddriver_keil.lib
diff --git a/bsp/nuvoton/libraries/m480/StdDriver/src/nu_epwm.c b/bsp/nuvoton/libraries/m480/StdDriver/src/nu_epwm.c
index 44d8239aef..e082fa5dba 100644
--- a/bsp/nuvoton/libraries/m480/StdDriver/src/nu_epwm.c
+++ b/bsp/nuvoton/libraries/m480/StdDriver/src/nu_epwm.c
@@ -312,6 +312,60 @@ void EPWM_DisableADCTrigger(EPWM_T *epwm, uint32_t u32ChannelNum)
 }
 
 /**
+ * @brief Enable and configure trigger ADC prescale
+ * @param[in] epwm The pointer of the specified EPWM module
+ *                - EPWM0 : EPWM Group 0
+ *                - EPWM1 : EPWM Group 1
+ * @param[in] u32ChannelNum EPWM channel number. Valid values are between 0~5.
+ * @param[in] u32Prescale ADC prescale. Valid values are between 0 to 0xF.
+ * @param[in] u32PrescaleCnt ADC prescale counter. Valid values are between 0 to 0xF.
+ * @retval 0 Success.
+ * @retval -1 Failed.
+ * @details This function is used to enable and configure trigger ADC prescale.
+ * @note User can configure only when ADC trigger prescale is disabled.
+ * @note ADC prescale counter must less than ADC prescale.
+ */
+int32_t EPWM_EnableADCTriggerPrescale(EPWM_T *epwm, uint32_t u32ChannelNum, uint32_t u32Prescale, uint32_t u32PrescaleCnt)
+{
+    /* User can write only when PSCENn(n = 0 ~ 5) is 0 */
+    if ((epwm)->EADCPSCCTL & (1UL << u32ChannelNum))
+        return (-1);
+
+    if(u32ChannelNum < 4UL)
+    {
+        (epwm)->EADCPSC0 = ((epwm)->EADCPSC0 & ~((EPWM_EADCPSC0_EADCPSC0_Msk) << (u32ChannelNum << 3))) | \
+                           (u32Prescale << (u32ChannelNum << 3));
+        (epwm)->EADCPSCNT0 = ((epwm)->EADCPSCNT0 & ~((EPWM_EADCPSCNT0_PSCNT0_Msk) << (u32ChannelNum << 3))) | \
+                             (u32PrescaleCnt << (u32ChannelNum << 3));
+    }
+    else
+    {
+        (epwm)->EADCPSC1 = ((epwm)->EADCPSC1 & ~((EPWM_EADCPSC1_EADCPSC4_Msk) << ((u32ChannelNum - 4UL) << 3))) | \
+                           (u32Prescale << ((u32ChannelNum - 4UL) << 3));
+        (epwm)->EADCPSCNT1 = ((epwm)->EADCPSCNT1 & ~((EPWM_EADCPSCNT1_PSCNT4_Msk) << ((u32ChannelNum - 4UL) << 3))) | \
+                           (u32PrescaleCnt << ((u32ChannelNum - 4UL) << 3));
+    }
+
+    (epwm)->EADCPSCCTL |= EPWM_EADCPSCCTL_PSCEN0_Msk << u32ChannelNum;
+
+    return 0;
+}
+
+/**
+ * @brief Disable Trigger ADC prescale function
+ * @param[in] epwm The pointer of the specified EPWM module
+ *                - EPWM0 : EPWM Group 0
+ *                - EPWM1 : EPWM Group 1
+ * @param[in] u32ChannelNum EPWM channel number. Valid values are between 0~5
+ * @return None
+ * @details This function is used to disable trigger ADC prescale.
+ */
+void EPWM_DisableADCTriggerPrescale(EPWM_T *epwm, uint32_t u32ChannelNum)
+{
+    (epwm)->EADCPSCCTL &= ~(EPWM_EADCPSCCTL_PSCEN0_Msk << u32ChannelNum);
+}
+
+/**
  * @brief Clear selected channel trigger ADC flag
  * @param[in] epwm The pointer of the specified EPWM module
  *                - EPWM0 : EPWM Group 0
@@ -1456,6 +1510,186 @@ void EPWM_ClearWrapAroundFlag(EPWM_T *epwm, uint32_t u32ChannelNum)
     (epwm)->STATUS = (EPWM_STATUS_CNTMAXF0_Msk << u32ChannelNum);
 }
 
+/**
+ * @brief Enable fault detect of selected channel.
+ * @param[in] epwm The pointer of the specified EPWM module.
+ *                - EPWM0 : EPWM Group 0
+ *                - EPWM1 : EPWM Group 1
+ * @param[in] u32ChannelNum EPWM channel number. Valid values are between 0~5.
+ * @param[in] u32AfterPrescaler Fault Detect Clock Source is from prescaler output. Valid values are TRUE (after prescaler) or FALSE (before prescaler).
+ * @param[in] u32ClkSel Fault Detect Clock Select.
+ *              - \ref EPWM_FDCTL_FDCKSEL_CLK_DIV_1
+ *              - \ref EPWM_FDCTL_FDCKSEL_CLK_DIV_2
+ *              - \ref EPWM_FDCTL_FDCKSEL_CLK_DIV_4
+ *              - \ref EPWM_FDCTL_FDCKSEL_CLK_DIV_8
+ * @return None
+ * @details This function is used to enable fault detect of selected channel.
+ */
+void EPWM_EnableFaultDetect(EPWM_T *epwm, uint32_t u32ChannelNum, uint32_t u32AfterPrescaler, uint32_t u32ClkSel)
+{
+    (epwm)->FDEN = ((epwm)->FDEN & ~(EPWM_FDEN_FDCKS0_Msk << (u32ChannelNum))) | \
+                   ((EPWM_FDEN_FDEN0_Msk | ((u32AfterPrescaler) << EPWM_FDEN_FDCKS0_Pos)) << (u32ChannelNum));
+    (epwm)->FDCTL[(u32ChannelNum)] = ((epwm)->FDCTL[(u32ChannelNum)] & ~EPWM_FDCTL0_FDCKSEL_Msk) | (u32ClkSel);
+}
+
+/**
+ * @brief Disable fault detect of selected channel.
+ * @param[in] epwm The pointer of the specified EPWM module.
+ *                - EPWM0 : EPWM Group 0
+ *                - EPWM1 : EPWM Group 1
+ * @param[in] u32ChannelNum EPWM channel number. Valid values are between 0~5.
+ * @return None
+ * @details This function is used to disable fault detect of selected channel.
+ */
+void EPWM_DisableFaultDetect(EPWM_T *epwm, uint32_t u32ChannelNum)
+{
+    (epwm)->FDEN &= ~(EPWM_FDEN_FDEN0_Msk << (u32ChannelNum));
+}
+
+/**
+ * @brief Enable fault detect output of selected channel.
+ * @param[in] epwm The pointer of the specified EPWM module.
+ *                - EPWM0 : EPWM Group 0
+ *                - EPWM1 : EPWM Group 1
+ * @param[in] u32ChannelNum EPWM channel number. Valid values are between 0~5.
+ * @return None
+ * @details This function is used to enable fault detect output of selected channel.
+ */
+void EPWM_EnableFaultDetectOutput(EPWM_T *epwm, uint32_t u32ChannelNum)
+{
+    (epwm)->FDEN &= ~(EPWM_FDEN_FDODIS0_Msk << (u32ChannelNum));
+}
+
+/**
+ * @brief Disable fault detect output of selected channel.
+ * @param[in] epwm The pointer of the specified EPWM module.
+ *                - EPWM0 : EPWM Group 0
+ *                - EPWM1 : EPWM Group 1
+ * @param[in] u32ChannelNum EPWM channel number. Valid values are between 0~5.
+ * @return None
+ * @details This function is used to disable fault detect output of selected channel.
+ */
+void EPWM_DisableFaultDetectOutput(EPWM_T *epwm, uint32_t u32ChannelNum)
+{
+    (epwm)->FDEN |= (EPWM_FDEN_FDODIS0_Msk << (u32ChannelNum));
+}
+
+/**
+ * @brief Enable fault detect deglitch function of selected channel.
+ * @param[in] epwm The pointer of the specified EPWM module.
+ *                - EPWM0 : EPWM Group 0
+ *                - EPWM1 : EPWM Group 1
+ * @param[in] u32ChannelNum EPWM channel number. Valid values are between 0~5.
+ * @param[in] u32DeglitchSmpCycle Deglitch Sampling Cycle. Valid values are between 0~7.
+ * @return None
+ * @details This function is used to enable fault detect deglitch function of selected channel.
+ */
+void EPWM_EnableFaultDetectDeglitch(EPWM_T *epwm, uint32_t u32ChannelNum, uint32_t u32DeglitchSmpCycle)
+{
+    (epwm)->FDCTL[(u32ChannelNum)] = ((epwm)->FDCTL[(u32ChannelNum)] & (~EPWM_FDCTL0_DGSMPCYC_Msk)) | \
+                                      (EPWM_FDCTL0_FDDGEN_Msk | ((u32DeglitchSmpCycle) << EPWM_FDCTL0_DGSMPCYC_Pos));
+}
+
+/**
+ * @brief Disable fault detect deglitch function of selected channel.
+ * @param[in] epwm The pointer of the specified EPWM module.
+ *                - EPWM0 : EPWM Group 0
+ *                - EPWM1 : EPWM Group 1
+ * @param[in] u32ChannelNum EPWM channel number. Valid values are between 0~5.
+ * @return None
+ * @details This function is used to disable fault detect deglitch function of selected channel.
+ */
+void EPWM_DisableFaultDetectDeglitch(EPWM_T *epwm, uint32_t u32ChannelNum)
+{
+    (epwm)->FDCTL[(u32ChannelNum)] &= ~EPWM_FDCTL0_FDDGEN_Msk;
+}
+
+/**
+ * @brief Enable fault detect mask function of selected channel.
+ * @param[in] epwm The pointer of the specified EPWM module.
+ *                - EPWM0 : EPWM Group 0
+ *                - EPWM1 : EPWM Group 1
+ * @param[in] u32ChannelNum EPWM channel number. Valid values are between 0~5.
+ * @param[in] u32MaskCnt Transition mask counter. Valid values are between 0~0x7F.
+ * @return None
+ * @details This function is used to enable fault detect mask function of selected channel.
+ */
+void EPWM_EnableFaultDetectMask(EPWM_T *epwm, uint32_t u32ChannelNum, uint32_t u32MaskCnt)
+{
+    (epwm)->FDCTL[(u32ChannelNum)] = ((epwm)->FDCTL[(u32ChannelNum)] & (~EPWM_FDCTL0_TRMSKCNT_Msk)) | (EPWM_FDCTL0_FDMSKEN_Msk | (u32MaskCnt));
+}
+
+/**
+ * @brief Disable fault detect mask function of selected channel.
+ * @param[in] epwm The pointer of the specified EPWM module.
+ *                - EPWM0 : EPWM Group 0
+ *                - EPWM1 : EPWM Group 1
+ * @param[in] u32ChannelNum EPWM channel number. Valid values are between 0~5.
+ * @return None
+ * @details This function is used to disable fault detect mask function of selected channel.
+ */
+void EPWM_DisableFaultDetectMask(EPWM_T *epwm, uint32_t u32ChannelNum)
+{
+    (epwm)->FDCTL[(u32ChannelNum)] &= ~EPWM_FDCTL0_FDMSKEN_Msk;
+}
+
+/**
+ * @brief Enable fault detect interrupt of selected channel.
+ * @param[in] epwm The pointer of the specified EPWM module.
+ *                - EPWM0 : EPWM Group 0
+ *                - EPWM1 : EPWM Group 1
+ * @param[in] u32ChannelNum EPWM channel number. Valid values are between 0~5.
+ * @return None
+ * @details This function is used to enable fault detect interrupt of selected channel.
+ */
+void EPWM_EnableFaultDetectInt(EPWM_T *epwm, uint32_t u32ChannelNum)
+{
+    (epwm)->FDIEN |= (EPWM_FDIEN_FDIEN0_Msk << (u32ChannelNum));
+}
+
+/**
+ * @brief Disable fault detect interrupt of selected channel.
+ * @param[in] epwm The pointer of the specified EPWM module.
+ *                - EPWM0 : EPWM Group 0
+ *                - EPWM1 : EPWM Group 1
+ * @param[in] u32ChannelNum EPWM channel number. Valid values are between 0~5.
+ * @return None
+ * @details This function is used to disable fault detect interrupt of selected channel.
+ */
+void EPWM_DisableFaultDetectInt(EPWM_T *epwm, uint32_t u32ChannelNum)
+{
+    (epwm)->FDIEN &= ~(EPWM_FDIEN_FDIEN0_Msk << (u32ChannelNum));
+}
+
+/**
+ * @brief Clear fault detect interrupt of selected channel.
+ * @param[in] epwm The pointer of the specified EPWM module.
+ *                - EPWM0 : EPWM Group 0
+ *                - EPWM1 : EPWM Group 1
+ * @param[in] u32ChannelNum EPWM channel number. Valid values are between 0~5.
+ * @return None
+ * @details This function is used to clear fault detect interrupt of selected channel.
+ */
+void EPWM_ClearFaultDetectInt(EPWM_T *epwm, uint32_t u32ChannelNum)
+{
+    (epwm)->FDSTS = (EPWM_FDSTS_FDIF0_Msk << (u32ChannelNum));
+}
+
+/**
+ * @brief Get fault detect interrupt of selected channel.
+ * @param[in] epwm The pointer of the specified EPWM module.
+ *                - EPWM0 : EPWM Group 0
+ *                - EPWM1 : EPWM Group 1
+ * @param[in] u32ChannelNum EPWM channel number. Valid values are between 0~5.
+ * @retval 0 Fault detect interrupt did not occur.
+ * @retval 1 Fault detect interrupt occurred.
+ * @details This function is used to Get fault detect interrupt of selected channel.
+ */
+uint32_t EPWM_GetFaultDetectInt(EPWM_T *epwm, uint32_t u32ChannelNum)
+{
+    return (((epwm)->FDSTS & (EPWM_FDSTS_FDIF0_Msk << (u32ChannelNum))) ? 1UL : 0UL);
+}
+
 /*@}*/ /* end of group EPWM_EXPORTED_FUNCTIONS */
 
 /*@}*/ /* end of group EPWM_Driver */
diff --git a/bsp/nuvoton/libraries/m480/USBHostLib/src/ehci.c b/bsp/nuvoton/libraries/m480/USBHostLib/src/ehci.c
index d311bbdb8e..9138c237a4 100644
--- a/bsp/nuvoton/libraries/m480/USBHostLib/src/ehci.c
+++ b/bsp/nuvoton/libraries/m480/USBHostLib/src/ehci.c
@@ -918,7 +918,7 @@ static int visit_qtd(qTD_T *qtd)
 static void scan_asynchronous_list()
 {
     QH_T    *qh, *qh_tmp;
-    qTD_T   *q_pre, *qtd, *qtd_tmp;
+    qTD_T   *q_pre=NULL, *qtd, *qtd_tmp;
     UTR_T   *utr;
 
     qh =  QH_PTR(_H_qh->HLink);
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/Kconfig b/bsp/nuvoton/libraries/m480/rtt_port/Kconfig
index 85fd05defa..e58ef284d1 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/Kconfig
+++ b/bsp/nuvoton/libraries/m480/rtt_port/Kconfig
@@ -19,6 +19,11 @@ config SOC_SERIES_M480
             int "Specify maximum mem actor for memfun"
             range 1 4
             default 4
+
+            config  NU_PDMA_SGTBL_POOL_SIZE
+            int "Specify maximum scatter-gather pool size"
+            range 1 32
+            default 16
         endif
 
     config BSP_USING_FMC
@@ -34,6 +39,7 @@ config SOC_SERIES_M480
     menuconfig BSP_USING_CLK
         bool "Enable CLK"
         select RT_USING_PM
+        select BSP_USING_TMR
         default y
         help
             Choose this option if you need CLK/PM function.
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/SConscript b/bsp/nuvoton/libraries/m480/rtt_port/SConscript
index e5dcd03017..a155044a30 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/SConscript
+++ b/bsp/nuvoton/libraries/m480/rtt_port/SConscript
@@ -1,11 +1,35 @@
 # RT-Thread building script for component
 
+Import('RTT_ROOT')
 from building import *
 
 cwd     = GetCurrentDir()
 src = Glob('*.c') + Glob('*.cpp')
 CPPPATH = [cwd]
+group = []
 
-group = DefineGroup('m480_rttport', src, depend = [''], CPPPATH = CPPPATH)
+# USB driver constrain
+if GetDepend('BOARD_USING_HSUSBD') and ( GetDepend('BSP_USING_USBD') or GetDepend('BSP_USING_HSUSBH') or GetDepend('BSP_USING_HSOTG') ):
+    print 'Sorry, wrong selection.'
+    print '[Hint] You already select BOARD_USING_HSUSBD. Please de-select BSP_USING_USBD, BSP_USING_HSUSBH and BSP_USING_HSOTG options.'
+    sys.exit(1)
+elif GetDepend('BOARD_USING_HSUSBD_USBH') and ( GetDepend('BSP_USING_USBD') or GetDepend('BSP_USING_HSUSBH') or GetDepend('BSP_USING_HSOTG') ):
+    print 'Sorry, wrong selection.'
+    print '[Hint] You already select BOARD_USING_HSUSBD_USBH. Please de-select BSP_USING_USBD, BSP_USING_HSUSBH and BSP_USING_HSOTG options.'
+    sys.exit(1)
+elif GetDepend('BOARD_USING_HSUSBH') and ( GetDepend('BSP_USING_USBH') or GetDepend('BSP_USING_HSUSBD') or GetDepend('BSP_USING_HSOTG') ):
+    print 'Sorry, wrong selection.'
+    print '[Hint] You already select BOARD_USING_HSUSBH. Please de-select BSP_USING_USBH, BSP_USING_HSUSBD and BSP_USING_HSOTG options.'
+    sys.exit(1)
+elif GetDepend('BOARD_USING_HSUSBH_USBD') and ( GetDepend('BSP_USING_USBH') or GetDepend('BSP_USING_HSUSBD') or GetDepend('BSP_USING_HSOTG') ):
+    print 'Sorry, wrong selection.'
+    print '[Hint] You already select BOARD_USING_HSUSBH_USBD. Please de-select BSP_USING_USBH, BSP_USING_HSUSBD and BSP_USING_HSOTG options.'
+    sys.exit(1)
+elif GetDepend('BOARD_USING_HSOTG') and ( GetDepend('BSP_USING_USBD') or GetDepend('BSP_USING_USBH') ):
+    print 'Sorry, wrong selection.'
+    print '[Hint] You already select BOARD_USING_HSOTG. Please de-select BSP_USING_USBD and BSP_USING_USBH options.'
+    sys.exit(1)
+else:
+    group = DefineGroup('m480_rttport', src, depend = [''], CPPPATH = CPPPATH)
 
 Return('group')
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_bpwm_capture.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_bpwm_capture.c
index 52b364ff7c..c7235fe7ae 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_bpwm_capture.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_bpwm_capture.c
@@ -53,13 +53,13 @@ static  rt_err_t nu_capture_get_pulsewidth(struct rt_inputcapture_device *inputc
 
 
 /* Private variables ------------------------------------------------------------*/
-#if (BSP_USING_BPWM_CAPTURE0_CHMSK!=0)
+#if (BSP_USING_BPWM0_CAPTURE_CHMSK!=0)
 static const char *nu_bpwm0_device_name[BPWM_CHANNEL_NUM] = { "bpwm0i0", "bpwm0i1", "bpwm0i2", "bpwm0i3", "bpwm0i4", "bpwm0i5"};
 static nu_capture_t *nu_bpwm0_capture[BPWM_CHANNEL_NUM] = {0};
 static nu_bpwm_dev_t nu_bpwm0_dev = {.bpwm_base = BPWM0};
 #endif
 
-#if (BSP_USING_BPWM_CAPTURE1_CHMSK!=0)
+#if (BSP_USING_BPWM1_CAPTURE_CHMSK!=0)
 static const char *nu_bpwm1_device_name[BPWM_CHANNEL_NUM] = { "bpwm1i0", "bpwm1i1", "bpwm1i2", "bpwm1i3", "bpwm1i4", "bpwm1i5"};
 static nu_capture_t *nu_bpwm1_capture[BPWM_CHANNEL_NUM] = {0};
 static nu_bpwm_dev_t nu_bpwm1_dev = {.bpwm_base = BPWM1};
@@ -118,48 +118,48 @@ void bpwm_interrupt_handler(nu_capture_t *nu_capture[], uint32_t u32ChMsk)
     }
 }
 
-#if (BSP_USING_BPWM_CAPTURE0_CHMSK!=0)
+#if (BSP_USING_BPWM0_CAPTURE_CHMSK!=0)
 void BPWM0_IRQHandler(void)
 {
     /* enter interrupt */
     rt_interrupt_enter();
 
-    bpwm_interrupt_handler(nu_bpwm0_capture, BSP_USING_BPWM_CAPTURE0_CHMSK);
+    bpwm_interrupt_handler(nu_bpwm0_capture, BSP_USING_BPWM0_CAPTURE_CHMSK);
 
     /* leave interrupt */
     rt_interrupt_leave();
 }
-#endif  //(BSP_USING_BPWM_CAPTURE0_CHMSK!=0)
+#endif  //(BSP_USING_BPWM0_CAPTURE_CHMSK!=0)
 
-#if (BSP_USING_BPWM_CAPTURE1_CHMSK!=0)
+#if (BSP_USING_BPWM1_CAPTURE_CHMSK!=0)
 void BPWM1_IRQHandler(void)
 {
     /* enter interrupt */
     rt_interrupt_enter();
 
-    bpwm_interrupt_handler(nu_bpwm1_capture, BSP_USING_BPWM_CAPTURE1_CHMSK);
+    bpwm_interrupt_handler(nu_bpwm1_capture, BSP_USING_BPWM1_CAPTURE_CHMSK);
 
     /* leave interrupt */
     rt_interrupt_leave();
 }
-#endif  //(BSP_USING_BPWM_CAPTURE1_CHMSK!=0)
+#endif  //(BSP_USING_BPWM1_CAPTURE_CHMSK!=0)
 
 static rt_err_t nu_capture_get_pulsewidth(struct rt_inputcapture_device *inputcapture, rt_uint32_t *pulsewidth_us)
 {
     rt_err_t ret = RT_EOK;
     nu_capture_t *nu_capture;
-    float u32TempCnt;
+    float fTempCnt;
 
     nu_capture = (nu_capture_t *)inputcapture;
 
     if (nu_capture->u32CurrentFallingCnt)
     {
         if (nu_capture->u32CurrentFallingCnt > nu_capture->u32LastRisingCnt)
-            u32TempCnt = nu_capture->u32CurrentFallingCnt - nu_capture->u32LastRisingCnt;
+            fTempCnt = nu_capture->u32CurrentFallingCnt - nu_capture->u32LastRisingCnt;
         else    /* Overrun case */
-            u32TempCnt = nu_capture->u32CurrentFallingCnt + (0x10000 - nu_capture->u32LastRisingCnt);
+            fTempCnt = nu_capture->u32CurrentFallingCnt + (0x10000 - nu_capture->u32LastRisingCnt);
 
-        *pulsewidth_us = u32TempCnt * nu_capture->bpwm_dev->fUsPerTick;
+        *pulsewidth_us = fTempCnt * nu_capture->bpwm_dev->fUsPerTick;
         nu_capture->input_data_level = RT_FALSE;
         nu_capture->u32LastFallingCnt = nu_capture->u32CurrentFallingCnt;
         nu_capture->u32CurrentFallingCnt = 0;
@@ -167,11 +167,11 @@ static rt_err_t nu_capture_get_pulsewidth(struct rt_inputcapture_device *inputca
     else if (nu_capture->u32CurrentRisingCnt)
     {
         if (nu_capture->u32CurrentRisingCnt > nu_capture->u32LastFallingCnt)
-            u32TempCnt = nu_capture->u32CurrentRisingCnt - nu_capture->u32LastFallingCnt;
+            fTempCnt = nu_capture->u32CurrentRisingCnt - nu_capture->u32LastFallingCnt;
         else    /* Overrun case */
-            u32TempCnt = nu_capture->u32CurrentRisingCnt + (0x10000 - nu_capture->u32LastFallingCnt);
+            fTempCnt = nu_capture->u32CurrentRisingCnt + (0x10000 - nu_capture->u32LastFallingCnt);
 
-        *pulsewidth_us = u32TempCnt * nu_capture->bpwm_dev->fUsPerTick;
+        *pulsewidth_us = fTempCnt * nu_capture->bpwm_dev->fUsPerTick;
         nu_capture->input_data_level = RT_TRUE;
         nu_capture->u32LastRisingCnt = nu_capture->u32CurrentRisingCnt;
         nu_capture->u32CurrentRisingCnt = 0;
@@ -309,21 +309,21 @@ static int nu_bpwm_capture_device_init(void)
 {
     for (int i = 0; i < BPWM_CHANNEL_NUM; i++)
     {
-#if (BSP_USING_BPWM_CAPTURE0_CHMSK!=0)
-        if (BSP_USING_BPWM_CAPTURE0_CHMSK & (0x1 << i))
+#if (BSP_USING_BPWM0_CAPTURE_CHMSK!=0)
+        if (BSP_USING_BPWM0_CAPTURE_CHMSK & (0x1 << i))
         {
             nu_bpwm0_capture[i] = (nu_capture_t *)rt_malloc(sizeof(nu_capture_t));
             bpwm_init(nu_bpwm0_capture[i], i, &nu_bpwm0_dev, nu_bpwm0_device_name[i], BPWM0_IRQn);
         }
-#endif //#if (BSP_USING_BPWM_CAPTURE0_CHMSK!=0)
+#endif //#if (BSP_USING_BPWM0_CAPTURE_CHMSK!=0)
 
-#if (BSP_USING_BPWM_CAPTURE1_CHMSK!=0)
-        if (BSP_USING_BPWM_CAPTURE1_CHMSK & (0x1 << i))
+#if (BSP_USING_BPWM1_CAPTURE_CHMSK!=0)
+        if (BSP_USING_BPWM1_CAPTURE_CHMSK & (0x1 << i))
         {
             nu_bpwm1_capture[i] = (nu_capture_t *)rt_malloc(sizeof(nu_capture_t));
             bpwm_init(nu_bpwm1_capture[i], i, &nu_bpwm1_dev, nu_bpwm1_device_name[i], BPWM1_IRQn);
         }
-#endif //#if (BSP_USING_BPWM_CAPTURE1_CHMSK!=0)
+#endif //#if (BSP_USING_BPWM1_CAPTURE_CHMSK!=0)
     }
 
     return 0;
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_clk.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_clk.c
index eae35e19c7..9ed0233bb2 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_clk.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_clk.c
@@ -203,7 +203,13 @@ static void pm_run(struct rt_pm *pm, rt_uint8_t mode)
 
 static void hw_timer_init(void)
 {
-    /* Assign and initialise a hardware timer for pm usage */
+    /* Assign a hardware timer for pm usage. */
+    SYS_UnlockReg();
+    CLK_SetModuleClock(PM_TIMER_MODULE, PM_TIMER_SEL_LXT, MODULE_NoMsk);
+    CLK_EnableModuleClock(PM_TIMER_MODULE);
+    SYS_LockReg();
+
+    /* Initialise timer and enable wakeup function. */
     TIMER_Open(PM_TIMER, TIMER_CONTINUOUS_MODE, 1);
     TIMER_SET_PRESCALE_VALUE(PM_TIMER, 0);
     TIMER_EnableInt(PM_TIMER);
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_crc.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_crc.c
index 3bf7cc5849..50c056730e 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_crc.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_crc.c
@@ -12,7 +12,8 @@
 
 #include <rtconfig.h>
 
-#if defined(BSP_USING_CRC)
+#if (defined(BSP_USING_CRC) && defined(RT_HWCRYPTO_USING_CRC))
+
 #include <string.h>
 
 #include <rtdevice.h>
@@ -130,5 +131,4 @@ rt_uint32_t nu_crc_update(struct hwcrypto_crc *ctx, const rt_uint8_t *in, rt_siz
     return crc_result ^ 0x00 ^ ctx->crc_cfg.xorout;
 }
 
-
-#endif
+#endif //#if (defined(BSP_USING_CRC) && defined(RT_HWCRYPTO_USING_CRC))
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_crypto.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_crypto.c
index 326a1c6e6e..6cc1f0b309 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_crypto.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_crypto.c
@@ -13,7 +13,8 @@
 
 #include <rtconfig.h>
 
-#if defined(BSP_USING_CRYPTO) || defined(BSP_USING_TRNG) || defined(BSP_USING_CRC)
+#if ((defined(BSP_USING_CRYPTO) || defined(BSP_USING_TRNG) || defined(BSP_USING_CRC)) && defined(RT_USING_HWCRYPTO))
+
 #include <string.h>
 
 #include <rtdevice.h>
@@ -838,4 +839,4 @@ int nu_hwcrypto_device_init(void)
 }
 INIT_DEVICE_EXPORT(nu_hwcrypto_device_init);
 
-#endif //#if defined(BSP_USING_CRYPTO) || defined(BSP_USING_TRNG) || defined(BSP_USING_CRC) 
+#endif //#if ((defined(BSP_USING_CRYPTO) || defined(BSP_USING_TRNG) || defined(BSP_USING_CRC)) && defined(RT_USING_HWCRYPTO))
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_fmc.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_fmc.c
index 9133917e52..79e66dbac0 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_fmc.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_fmc.c
@@ -56,7 +56,7 @@ int nu_fmc_read(long addr, uint8_t *buf, size_t size)
 {
     size_t read_size = 0;
     uint32_t addr_end = addr + size;
-    uint32_t isp_rdata;
+    uint32_t isp_rdata = 0;
     rt_mutex_take(g_mutex_fmc, RT_WAITING_FOREVER);
     SYS_UnlockReg();
 
@@ -96,7 +96,7 @@ int nu_fmc_write(long addr, const uint8_t *buf, size_t size)
 {
     size_t write_size = 0;
     uint32_t addr_end = addr + size;
-    uint32_t isp_rdata;
+    uint32_t isp_rdata = 0;
 
     rt_mutex_take(g_mutex_fmc, RT_WAITING_FOREVER);
     SYS_UnlockReg();
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_gpio.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_gpio.c
index ee0eeeb0cd..4790d65001 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_gpio.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_gpio.c
@@ -12,7 +12,7 @@
 
 #include <rtconfig.h>
 
-#if defined(BSP_USING_GPIO)
+#if (defined(BSP_USING_GPIO) && defined(RT_USING_PIN))
 
 #include <rtdevice.h>
 #include <rthw.h>
@@ -226,7 +226,7 @@ static rt_err_t nu_gpio_irq_enable(struct rt_device *device, rt_base_t pin, rt_u
     uint32_t u32IntAttribs;
     rt_int32_t irqindex;
     rt_err_t ret = RT_EOK;
-	
+
     if (nu_port_check(pin))
         return -(RT_ERROR);
 
@@ -253,6 +253,8 @@ static rt_err_t nu_gpio_irq_enable(struct rt_device *device, rt_base_t pin, rt_u
             u32IntAttribs = GPIO_INT_HIGH;
         else if (pin_irq_hdr_tab[irqindex].mode == PIN_IRQ_MODE_LOW_LEVEL)
             u32IntAttribs = GPIO_INT_LOW;
+        else
+            goto exit_nu_gpio_irq_enable;
 
         GPIO_EnableInt(PORT, NU_GET_PINS(pin), u32IntAttribs);
 
@@ -314,7 +316,7 @@ void GPB_IRQHandler(void)
 void GPC_IRQHandler(void)
 {
     rt_uint32_t int_status;
-   
+
     rt_interrupt_enter();
 
     int_status = PC->INTSRC;
@@ -372,7 +374,7 @@ void GPG_IRQHandler(void)
     int_status = PG->INTSRC;
     pin_irq_hdr(int_status, NU_PG);
     PG->INTSRC = int_status;
-	
+
     rt_interrupt_leave();
 }
 
@@ -389,4 +391,4 @@ void GPH_IRQHandler(void)
     rt_interrupt_leave();
 }
 
-#endif //#if defined(BSP_USING_GPIO)
+#endif //#if (defined(BSP_USING_GPIO) && defined(RT_USING_PIN))
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_i2s.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_i2s.c
index 0eb2616a14..35b7383210 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_i2s.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_i2s.c
@@ -113,6 +113,9 @@ static rt_err_t nu_i2s_pdma_sc_config(nu_i2s_t psNuI2s, E_NU_I2S_DAI dai)
         u32Src = (uint32_t)&i2s_base->RXFIFO;
         u32Dst = (uint32_t)&psNuI2sDai->fifo[0];
         break;
+
+    default:
+        return -RT_EINVAL;
     }
 
     result = nu_pdma_callback_register(psNuI2sDai->pdma_chanid,
@@ -125,17 +128,17 @@ static rt_err_t nu_i2s_pdma_sc_config(nu_i2s_t psNuI2s, E_NU_I2S_DAI dai)
     {
         /* Setup dma descriptor entry */
         result = nu_pdma_desc_setup(psNuI2sDai->pdma_chanid,    // Channel ID
-                                    &psNuI2sDai->pdma_descs[i], // this descriptor
+                                    psNuI2sDai->pdma_descs[i], // this descriptor
                                     32, // 32-bits
                                     (dai == NU_I2S_DAI_PLAYBACK) ? u32Src + (i * NU_I2S_DMA_BUF_BLOCK_SIZE) : u32Src, //Memory or RXFIFO
                                     (dai == NU_I2S_DAI_PLAYBACK) ? u32Dst : u32Dst + (i * NU_I2S_DMA_BUF_BLOCK_SIZE), //TXFIFO or Memory
                                     (int32_t)NU_I2S_DMA_BUF_BLOCK_SIZE / 4,   // Transfer count
-                                    &psNuI2sDai->pdma_descs[(i + 1) % NU_I2S_DMA_BUF_BLOCK_NUMBER]); // Next descriptor
+                                    psNuI2sDai->pdma_descs[(i + 1) % NU_I2S_DMA_BUF_BLOCK_NUMBER]); // Next descriptor
         RT_ASSERT(result == RT_EOK);
     }
 
     /* Assign head descriptor */
-    result = nu_pdma_sg_transfer(psNuI2sDai->pdma_chanid, &psNuI2sDai->pdma_descs[0], 0);
+    result = nu_pdma_sg_transfer(psNuI2sDai->pdma_chanid, psNuI2sDai->pdma_descs[0], 0);
     RT_ASSERT(result == RT_EOK);
 
     return result;
@@ -203,7 +206,7 @@ static rt_err_t nu_i2s_dai_setup(nu_i2s_t psNuI2s, struct rt_audio_configure *pc
             goto exit_nu_i2s_dai_setup;
 
         real_samplerate = I2S_Open(psNuI2s->i2s_base,
-                                   (psNuI2s->AcodecOps->role == NuAcodecRole_Master) ? I2S_MODE_SLAVE : I2S_MODE_MASTER,
+                                   (psNuI2s->AcodecOps->role == NU_ACODEC_ROLE_MASTER) ? I2S_MODE_SLAVE : I2S_MODE_MASTER,
                                    pconfig->samplerate,
                                    (((pconfig->samplebits / 8) - 1) << I2S_CTL0_DATWIDTH_Pos),
                                    (pconfig->channels == 1) ? I2S_ENABLE_MONO : I2S_DISABLE_MONO,
@@ -564,6 +567,8 @@ int rt_hw_i2s_init(void)
         psNuI2sDai->pdma_chanid = -1;
         psNuI2sDai->fifo_block_idx = 0;
         RT_ASSERT(nu_hw_i2s_pdma_allocate(psNuI2sDai) == RT_EOK);
+
+        RT_ASSERT(nu_pdma_sgtbls_allocate(&psNuI2sDai->pdma_descs[0], NU_I2S_DMA_BUF_BLOCK_NUMBER) == RT_EOK);
     }
 
     /* Register ops of audio device */
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_i2s.h b/bsp/nuvoton/libraries/m480/rtt_port/drv_i2s.h
index ea73e1b0f3..3fe99f3e3b 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_i2s.h
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_i2s.h
@@ -15,6 +15,7 @@
 
 #include <rtdevice.h>
 #include <NuMicro.h>
+#include <drv_pdma.h>
 
 #if !defined(NU_I2S_DMA_FIFO_SIZE)
     #define NU_I2S_DMA_FIFO_SIZE (2048)
@@ -42,8 +43,8 @@ typedef enum
 
 typedef enum
 {
-    NuAcodecRole_Master,
-    NuAcodecRole_Slave,
+    NU_ACODEC_ROLE_MASTER,
+    NU_ACODEC_ROLE_SLAVE,
 } E_NU_ACODEC_ROLE;
 
 typedef struct
@@ -74,7 +75,7 @@ struct nu_i2s_dai
     int8_t  pdma_chanid;
     rt_uint8_t *fifo;
     int16_t  fifo_block_idx;
-    DSCT_T pdma_descs[NU_I2S_DMA_BUF_BLOCK_NUMBER];
+    nu_pdma_desc_t pdma_descs[NU_I2S_DMA_BUF_BLOCK_NUMBER];
 };
 typedef struct nu_i2s_dai *nu_i2s_dai_t;
 
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_pdma.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_pdma.c
index 53e6806466..6e3a86ae31 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_pdma.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_pdma.c
@@ -23,9 +23,11 @@
 // RT_DEV_NAME_PREFIX pdma
 
 #ifndef NU_PDMA_MEMFUN_ACTOR_MAX
-    #define NU_PDMA_MEMFUN_ACTOR_MAX 4
+    #define NU_PDMA_MEMFUN_ACTOR_MAX (4)
 #endif
 
+#define NU_PDMA_SG_TBL_MAXSIZE         (NU_PDMA_SG_LIMITED_DISTANCE/sizeof(DSCT_T))
+
 #define NU_PDMA_CH_MAX (PDMA_CH_MAX)     /* Specify maximum channels of PDMA */
 #define NU_PDMA_CH_Pos (0)               /* Specify first channel number of PDMA */
 #define NU_PDMA_CH_Msk (((1 << NU_PDMA_CH_MAX) - 1) << NU_PDMA_CH_Pos)
@@ -174,6 +176,11 @@ static const nu_pdma_periph_ctl_t g_nu_pdma_peripheral_ctl_pool[ ] =
 
 static struct nu_pdma_memfun_actor nu_pdma_memfun_actor_arr[NU_PDMA_MEMFUN_ACTOR_MAX];
 
+/* SG table pool */
+static DSCT_T nu_pdma_sgtbl_arr[NU_PDMA_SGTBL_POOL_SIZE] = { 0 };
+static uint32_t nu_pdma_sgtbl_token[RT_ALIGN(NU_PDMA_SGTBL_POOL_SIZE, 32) / 32];
+static rt_mutex_t g_mutex_sg = RT_NULL;
+
 static int nu_pdma_peripheral_set(uint32_t u32PeriphType)
 {
     int idx = 0;
@@ -198,10 +205,15 @@ static void nu_pdma_periph_ctrl_fill(int i32ChannID, int i32CtlPoolIdx)
 
 static void nu_pdma_init(void)
 {
+    int latest = 0;
     if (nu_pdma_inited)
         return;
 
     g_mutex_res = rt_mutex_create("pdmalock", RT_IPC_FLAG_FIFO);
+    RT_ASSERT(g_mutex_res != RT_NULL);
+
+    g_mutex_sg = rt_mutex_create("sgtbles", RT_IPC_FLAG_FIFO);
+    RT_ASSERT(g_mutex_sg != RT_NULL);
 
     nu_pdma_chn_mask = ~NU_PDMA_CH_Msk;
     rt_memset(nu_pdma_chn_arr, 0x00, sizeof(nu_pdma_chn_t));
@@ -212,6 +224,16 @@ static void nu_pdma_init(void)
     PDMA_Open(PDMA, NU_PDMA_CH_Msk);
     PDMA_Close(PDMA);
 
+    rt_memset(&nu_pdma_sgtbl_arr[0], 0x00, sizeof(nu_pdma_sgtbl_arr));
+
+    /* Assign first SG table address as PDMA SG table base address */
+    PDMA->SCATBA = (uint32_t)&nu_pdma_sgtbl_arr[0];
+
+    /* Initializa token pool. */
+    rt_memset(&nu_pdma_sgtbl_token[0], 0xff, sizeof(nu_pdma_sgtbl_token));
+    latest = NU_PDMA_SGTBL_POOL_SIZE / 32;
+    nu_pdma_sgtbl_token[latest] ^= ~((1 << (NU_PDMA_SGTBL_POOL_SIZE % 32)) - 1) ;
+
     nu_pdma_inited = 1;
 }
 
@@ -507,6 +529,8 @@ static void nu_pdma_channel_memctrl_fill(nu_pdma_memctrl_t eMemCtl, uint32_t *pu
         *pu32SrcCtl = PDMA_SAR_INC;
         *pu32DstCtl = PDMA_DAR_INC;
         break;
+    default:
+        break;
     }
 }
 
@@ -569,6 +593,119 @@ exit_nu_pdma_desc_setup:
     return -(ret);
 }
 
+static int nu_pdma_sgtbls_token_allocate(void)
+{
+    int idx, i;
+
+    int pool_size = sizeof(nu_pdma_sgtbl_token) / sizeof(uint32_t);
+
+    for (i = 0; i < pool_size; i++)
+    {
+        if ((idx = nu_ctz(nu_pdma_sgtbl_token[i])) != 32)
+        {
+            nu_pdma_sgtbl_token[i] &= ~(1 << idx);
+            idx += i * 32;
+            return idx;
+        }
+    }
+
+    /* No available */
+    return -1;
+}
+
+static void nu_pdma_sgtbls_token_free(nu_pdma_desc_t psSgtbls)
+{
+    int idx = (int)(psSgtbls - &nu_pdma_sgtbl_arr[0]);
+    RT_ASSERT(idx >= 0);
+    RT_ASSERT((idx + 1) <= NU_PDMA_SGTBL_POOL_SIZE);
+    nu_pdma_sgtbl_token[idx / 32] |= (1 << (idx % 32));
+}
+
+rt_err_t nu_pdma_sgtbls_allocate(nu_pdma_desc_t *ppsSgtbls, int num)
+{
+    int i, j, idx;
+
+    RT_ASSERT(ppsSgtbls != NULL);
+    RT_ASSERT(num <= NU_PDMA_SG_TBL_MAXSIZE);
+
+    rt_mutex_take(g_mutex_sg, RT_WAITING_FOREVER);
+
+    for (i = 0; i < num; i++)
+    {
+        ppsSgtbls[i] = NULL;
+        /* Get token. */
+        if ((idx = nu_pdma_sgtbls_token_allocate()) < 0)
+        {
+            rt_kprintf("No available sgtbl.\n");
+            goto fail_nu_pdma_sgtbls_allocate;
+        }
+
+        ppsSgtbls[i] = (nu_pdma_desc_t)&nu_pdma_sgtbl_arr[idx];
+    }
+
+    rt_mutex_release(g_mutex_sg);
+
+    return RT_EOK;
+
+fail_nu_pdma_sgtbls_allocate:
+
+    /* Release allocated tables. */
+    for (j = 0; j < i; j++)
+    {
+        if (ppsSgtbls[j] != NULL)
+        {
+            nu_pdma_sgtbls_token_free(ppsSgtbls[j]);
+        }
+        ppsSgtbls[j] = NULL;
+    }
+
+    rt_mutex_release(g_mutex_sg);
+    return -RT_ERROR;
+}
+
+void nu_pdma_sgtbls_free(nu_pdma_desc_t *ppsSgtbls, int num)
+{
+    int i;
+
+    RT_ASSERT(ppsSgtbls != NULL);
+    RT_ASSERT(num <= NU_PDMA_SG_TBL_MAXSIZE);
+
+    rt_mutex_take(g_mutex_sg, RT_WAITING_FOREVER);
+
+    for (i = 0; i < num; i++)
+    {
+        if (ppsSgtbls[i] != NULL)
+        {
+            nu_pdma_sgtbls_token_free(ppsSgtbls[i]);
+        }
+        ppsSgtbls[i] = NULL;
+    }
+
+    rt_mutex_release(g_mutex_sg);
+}
+
+static rt_err_t nu_pdma_sgtbls_valid(nu_pdma_desc_t head)
+{
+    uint32_t node_addr;
+    nu_pdma_desc_t node = head;
+
+    do
+    {
+        node_addr = (uint32_t)node;
+        if ((node_addr < PDMA->SCATBA) || (node_addr - PDMA->SCATBA) >= NU_PDMA_SG_LIMITED_DISTANCE)
+        {
+            rt_kprintf("The distance is over %d between 0x%08x and 0x%08x. \n", NU_PDMA_SG_LIMITED_DISTANCE, PDMA->SCATBA, node);
+            rt_kprintf("Please use nu_pdma_sgtbl_allocate to allocate valid sg-table.\n");
+            return RT_ERROR;
+        }
+
+        node = (nu_pdma_desc_t)(node->NEXT + PDMA->SCATBA);
+
+    } while (((uint32_t)node != PDMA->SCATBA) && (node != head));
+
+     return RT_EOK;
+}
+
 static void _nu_pdma_transfer(int i32ChannID, uint32_t u32Peripheral, nu_pdma_desc_t head, uint32_t u32IdleTimeout_us)
 {
     PDMA_DisableTimeout(PDMA,  1 << i32ChannID);
@@ -628,6 +765,8 @@ rt_err_t nu_pdma_sg_transfer(int i32ChannID, nu_pdma_desc_t head, uint32_t u32Id
         goto exit_nu_pdma_sg_transfer;
     else if (!(nu_pdma_chn_mask & (1 << i32ChannID)))
         goto exit_nu_pdma_sg_transfer;
+    else if ( (ret=nu_pdma_sgtbls_valid(head)) != RT_EOK ) /* Check SG-tbls. */
+        goto exit_nu_pdma_sg_transfer;
 
     psPeriphCtl = &nu_pdma_chn_arr[i32ChannID - NU_PDMA_CH_Pos].m_spPeripCtl;
 
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_pdma.h b/bsp/nuvoton/libraries/m480/rtt_port/drv_pdma.h
index ce62f629f9..e379323633 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_pdma.h
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_pdma.h
@@ -13,9 +13,14 @@
 #ifndef __DRV_PDMA_H__
 #define __DRV_PDMA_H__
 
+#include <rtconfig.h>
 #include <rtthread.h>
 #include <NuMicro.h>
 
+#ifndef NU_PDMA_SGTBL_POOL_SIZE
+    #define NU_PDMA_SGTBL_POOL_SIZE (16)
+#endif
+
 #define NU_PDMA_CAP_NONE    (0 << 0)
 
 #define NU_PDMA_EVENT_ABORT             (1 << 0)
@@ -25,6 +30,8 @@
 #define NU_PDMA_EVENT_MASK              NU_PDMA_EVENT_ALL
 #define NU_PDMA_UNUSED                  (-1)
 
+#define NU_PDMA_SG_LIMITED_DISTANCE     ((PDMA_DSCT_NEXT_NEXT_Msk>>PDMA_DSCT_NEXT_NEXT_Pos)+1)
+
 typedef enum
 {
     eMemCtl_SrcFix_DstFix,
@@ -53,6 +60,9 @@ nu_pdma_cb_handler_t nu_pdma_callback_hijack(int i32ChannID, nu_pdma_cb_handler_
 // For scatter-gather DMA
 rt_err_t nu_pdma_desc_setup(int i32ChannID, nu_pdma_desc_t dma_desc, uint32_t u32DataWidth, uint32_t u32AddrSrc, uint32_t u32AddrDst, int32_t TransferCnt, nu_pdma_desc_t next);
 rt_err_t nu_pdma_sg_transfer(int i32ChannID, nu_pdma_desc_t head, uint32_t u32IdleTimeout_us);
+rt_err_t nu_pdma_sgtbls_allocate(nu_pdma_desc_t *ppsSgtbls, int num);
+void nu_pdma_sgtbls_free(nu_pdma_desc_t *ppsSgtbls, int num);
+
 
 // For memory actor
 void *nu_pdma_memcpy(void *dest, void *src, unsigned int count);
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_rtc.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_rtc.c
index ee005178c5..361ee87755 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_rtc.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_rtc.c
@@ -19,12 +19,12 @@
 /* Private define ---------------------------------------------------------------*/
 
 /* convert the real year and month value to the format of struct tm. */
-#define CONV_TO_TM_YEAR(year)           (year - 1900)
-#define CONV_TO_TM_MON(mon)             (mon - 1)
+#define CONV_TO_TM_YEAR(year)           ((year) - 1900)
+#define CONV_TO_TM_MON(mon)             ((mon) - 1)
 
 /* convert the tm_year and tm_mon from struct tm to the real value. */
-#define CONV_FROM_TM_YEAR(tm_year)      (tm_year + 1900)
-#define CONV_FROM_TM_MON(tm_mon)        (tm_mon + 1)
+#define CONV_FROM_TM_YEAR(tm_year)      ((tm_year) + 1900)
+#define CONV_FROM_TM_MON(tm_mon)        ((tm_mon) + 1)
 
 /* rtc date upper bound reaches the year of 2099. */
 #define RTC_TM_UPPER_BOUND                                              \
@@ -49,29 +49,24 @@
 /* Private typedef --------------------------------------------------------------*/
 
 /* Private functions ------------------------------------------------------------*/
-
-/* Redundant entries                                                    */
-/* static rt_err_t nu_rtc_init(rt_device_t dev);                        */
-/* static rt_err_t nu_rtc_open(rt_device_t dev, rt_uint16_t oflag);     */
-/* static rt_err_t nu_rtc_close(rt_device_t dev);                       */
 static rt_err_t nu_rtc_control(rt_device_t dev, int cmd, void *args);
 
 #if defined (NU_RTC_SUPPORT_IO_RW)
-    static rt_size_t nu_rtc_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size);
-    static rt_size_t nu_rtc_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size);
+static rt_size_t nu_rtc_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size);
+static rt_size_t nu_rtc_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size);
 #endif
 
 static rt_err_t nu_rtc_is_date_valid(const time_t *const t);
 static void nu_rtc_init(void);
 
 #if defined(RT_USING_ALARM)
-    static void nu_rtc_alarm_reset(void);
+static void nu_rtc_alarm_reset(void);
 #endif
 
 /* Public functions -------------------------------------------------------------*/
 #if defined (NU_RTC_SUPPORT_MSH_CMD)
-    extern rt_err_t set_date(rt_uint32_t year, rt_uint32_t month, rt_uint32_t day);
-    extern rt_err_t set_time(rt_uint32_t hour, rt_uint32_t minute, rt_uint32_t second);
+extern rt_err_t set_date(rt_uint32_t year, rt_uint32_t month, rt_uint32_t day);
+extern rt_err_t set_time(rt_uint32_t hour, rt_uint32_t minute, rt_uint32_t second);
 #endif
 
 /* Private variables ------------------------------------------------------------*/
@@ -82,7 +77,9 @@ static void nu_rtc_init(void)
 {
     /* hw rtc initialise */
     RTC_Open(NULL);
-    RTC_DisableInt(RTC_INTEN_TICKIEN_Msk | RTC_INTEN_ALMIEN_Msk | RTC_INTEN_TAMP0IEN_Msk);
+    RTC_DisableInt(RTC_INTEN_ALMIEN_Msk | RTC_INTEN_TICKIEN_Msk | RTC_INTEN_TAMP0IEN_Msk |
+                   RTC_INTEN_TAMP1IEN_Msk | RTC_INTEN_TAMP2IEN_Msk | RTC_INTEN_TAMP3IEN_Msk |
+                   RTC_INTEN_TAMP4IEN_Msk | RTC_INTEN_TAMP5IEN_Msk);
 
 #if defined(RT_USING_ALARM)
 
@@ -97,15 +94,22 @@ static void nu_rtc_init(void)
 /* Reset alarm settings to avoid the unwanted values remain in rtc registers. */
 static void nu_rtc_alarm_reset(void)
 {
-    RTC_WaitAccessEnable();
+    S_RTC_TIME_DATA_T alarm;
 
     /* Reset alarm time and calendar. */
-    RTC->TALM = 0;
-    RTC->CALM = 0;
+    alarm.u32Year       = RTC_YEAR2000;
+    alarm.u32Month      = 0;
+    alarm.u32Day        = 0;
+    alarm.u32Hour       = 0;
+    alarm.u32Minute     = 0;
+    alarm.u32Second     = 0;
+    alarm.u32TimeScale  = RTC_CLOCK_24;
+
+    RTC_SetAlarmDateAndTime(&alarm);
 
     /* Reset alarm time mask and calendar mask. */
-    RTC->CAMSK = 0;
-    RTC->TAMSK = 0;
+    RTC_SetAlarmDateMask(0, 0, 0, 0, 0, 0);
+    RTC_SetAlarmTimeMask(0, 0, 0, 0, 0, 0);
 
     /* Clear alarm flag for safe */
     RTC_CLEAR_ALARM_INT_FLAG();
@@ -146,23 +150,6 @@ int rt_hw_rtc_init(void)
 INIT_BOARD_EXPORT(rt_hw_rtc_init);
 
 
-/* Redundant device.init() entry.                                       */
-/* static rt_err_t nu_rtc_init(rt_device_t dev)                         */
-/* {                                                                    */
-/*     return RT_EOK;                                                   */
-/* }                                                                    */
-/* Redundant device.open() entry.                                       */
-/* static rt_err_t nu_rtc_open(rt_device_t dev, rt_uint16_t oflag)      */
-/* {                                                                    */
-/*     return RT_EOK;                                                   */
-/* }                                                                    */
-/* Redundant device.close() entry.                                      */
-/* static rt_err_t nu_rtc_close(rt_device_t dev)                        */
-/* {                                                                    */
-/*     return RT_EOK;                                                   */
-/* }                                                                    */
-
-
 #if defined (NU_RTC_SUPPORT_IO_RW)
 /* Register rt-thread device.read() entry. */
 static rt_size_t nu_rtc_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
@@ -354,7 +341,7 @@ void RTC_IRQHandler(void)
     {
         RTC_CLEAR_ALARM_INT_FLAG();
 
-        /* Send an alarm event to notify rt-thread alarm serive. */
+        /* Send an alarm event to notify rt-thread alarm service. */
         rt_alarm_update(&device_rtc, NULL);
     }
 #endif
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_softi2c.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_softi2c.c
index 953521c57f..05f9906def 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_softi2c.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_softi2c.c
@@ -12,7 +12,7 @@
 
 #include <rtconfig.h>
 
-#if (defined(BSP_USING_SOFT_I2C) && defined(BSP_USING_GPIO))
+#if (defined(BSP_USING_SOFT_I2C) && defined(BSP_USING_GPIO) && defined(RT_USING_I2C_BITOPS) && defined(RT_USING_I2C) && defined(RT_USING_PIN))
 
 #include <rtthread.h>
 #include <rthw.h>
@@ -251,4 +251,4 @@ int rt_soft_i2c_init(void)
 }
 INIT_BOARD_EXPORT(rt_soft_i2c_init);
 
-#endif //(defined(BSP_USING_SOFT_I2C) && defined(BSP_USING_GPIO))
+#endif //#if (defined(BSP_USING_SOFT_I2C) && defined(BSP_USING_GPIO) && defined(RT_USING_I2C_BITOPS) && defined(RT_USING_I2C) && defined(RT_USING_PIN))
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_spi.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_spi.c
index 14dc883af3..8a29a847ca 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_spi.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_spi.c
@@ -18,9 +18,7 @@
 
 #include <drv_spi.h>
 
-#if defined(BSP_USING_SPI_PDMA) || defined(BSP_USING_QSPI_PDMA)
-    #include <drv_pdma.h>
-#endif
+
 /* Private define ---------------------------------------------------------------*/
 
 #ifndef NU_SPI_USE_PDMA_MIN_THRESHOLD
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_spi.h b/bsp/nuvoton/libraries/m480/rtt_port/drv_spi.h
index 117f44e2df..c75a126bee 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_spi.h
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_spi.h
@@ -17,6 +17,10 @@
 #include <NuMicro.h>
 #include <nu_bitutil.h>
 
+#if defined(BSP_USING_SPI_PDMA) || defined(BSP_USING_QSPI_PDMA)
+    #include <drv_pdma.h>
+#endif
+
 struct nu_spi
 {
     struct rt_spi_bus dev;
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_spii2s.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_spii2s.c
index d25d3d24f3..bdb8e89fec 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_spii2s.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_spii2s.c
@@ -180,6 +180,9 @@ static rt_err_t nu_spii2s_pdma_sc_config(nu_i2s_t psNuSPII2s, E_NU_I2S_DAI dai)
         u32Src = (uint32_t)&spii2s_base->RX;
         u32Dst = (uint32_t)&psNuSPII2sDai->fifo[0];
         break;
+
+    default:
+        return -RT_EINVAL;
     }
 
     result = nu_pdma_callback_register(psNuSPII2sDai->pdma_chanid,
@@ -192,17 +195,17 @@ static rt_err_t nu_spii2s_pdma_sc_config(nu_i2s_t psNuSPII2s, E_NU_I2S_DAI dai)
     {
         /* Setup dma descriptor entry */
         result = nu_pdma_desc_setup(psNuSPII2sDai->pdma_chanid,    // Channel ID
-                                    &psNuSPII2sDai->pdma_descs[i], // this descriptor
+                                    psNuSPII2sDai->pdma_descs[i], // this descriptor
                                     32, // 32-bits
                                     (dai == NU_I2S_DAI_PLAYBACK) ? u32Src + (i * NU_I2S_DMA_BUF_BLOCK_SIZE) : u32Src, //Memory or RXFIFO
                                     (dai == NU_I2S_DAI_PLAYBACK) ? u32Dst : u32Dst + (i * NU_I2S_DMA_BUF_BLOCK_SIZE), //TXFIFO or Memory
                                     (int32_t)NU_I2S_DMA_BUF_BLOCK_SIZE / 4,   // Transfer count
-                                    &psNuSPII2sDai->pdma_descs[(i + 1) % NU_I2S_DMA_BUF_BLOCK_NUMBER]); // Next descriptor
+                                    psNuSPII2sDai->pdma_descs[(i + 1) % NU_I2S_DMA_BUF_BLOCK_NUMBER]); // Next descriptor
         RT_ASSERT(result == RT_EOK);
     }
 
     /* Assign head descriptor */
-    result = nu_pdma_sg_transfer(psNuSPII2sDai->pdma_chanid, &psNuSPII2sDai->pdma_descs[0], 0);
+    result = nu_pdma_sg_transfer(psNuSPII2sDai->pdma_chanid, psNuSPII2sDai->pdma_descs[0], 0);
     RT_ASSERT(result == RT_EOK);
 
     return result;
@@ -270,7 +273,7 @@ static rt_err_t nu_spii2s_dai_setup(nu_i2s_t psNuSPII2s, struct rt_audio_configu
             goto exit_nu_spii2s_dai_setup;
 
         SPII2S_Open(spii2s_base,
-                    (psNuSPII2s->AcodecOps->role == NuAcodecRole_Master) ? SPII2S_MODE_SLAVE : SPII2S_MODE_MASTER,
+                    (psNuSPII2s->AcodecOps->role == NU_ACODEC_ROLE_MASTER) ? SPII2S_MODE_SLAVE : SPII2S_MODE_MASTER,
                     pconfig->samplerate,
                     (((pconfig->samplebits / 8) - 1) << SPI_I2SCTL_WDWIDTH_Pos),
                     (pconfig->channels == 1) ? SPII2S_MONO : SPII2S_STEREO,
@@ -632,6 +635,7 @@ int rt_hw_spii2s_init(void)
             psNuSPII2sDai->pdma_chanid = -1;
             psNuSPII2sDai->fifo_block_idx = 0;
             RT_ASSERT(nu_hw_spii2s_pdma_allocate(psNuSPII2sDai) == RT_EOK);
+            RT_ASSERT(nu_pdma_sgtbls_allocate(&psNuSPII2sDai->pdma_descs[0], NU_I2S_DMA_BUF_BLOCK_NUMBER) == RT_EOK);
         }
 
         /* Register ops of audio device */
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_timer.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_timer.c
index 251bf1e83d..331155e258 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_timer.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_timer.c
@@ -12,7 +12,7 @@
 
 #include <rtconfig.h>
 
-#if defined(BSP_USING_TIMER)
+#if (defined(BSP_USING_TIMER) && defined(RT_USING_HWTIMER))
 
 #include <rtdevice.h>
 #include <NuMicro.h>
@@ -322,4 +322,4 @@ void TMR3_IRQHandler(void)
 }
 #endif
 
-#endif //#if defined(BSP_USING_TIMER)
+#endif //#if (defined(BSP_USING_TIMER) && defined(RT_USING_HWTIMER))
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_tpwm.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_tpwm.c
index 2dd8e1a0ef..0b555fe8e7 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_tpwm.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_tpwm.c
@@ -13,7 +13,7 @@
 
 #include <rtconfig.h>
 
-#if defined(BSP_USING_TPWM)
+#if (defined(BSP_USING_TPWM) && defined(RT_USING_PWM))
 
 #define LOG_TAG                 "drv.tpwm"
 #define DBG_ENABLE
@@ -163,6 +163,8 @@ static rt_err_t nu_tpwm_control(struct rt_device_pwm *tpwm_dev, int cmd, void *a
         return nu_tpwm_set(tpwm_dev, tpwm_config);
     case PWM_CMD_GET:
         return nu_tpwm_get(tpwm_dev, tpwm_config);
+    default:
+        break;
     }
     return -(RT_EINVAL);
 }
@@ -232,4 +234,4 @@ int rt_hw_tpwm_init(void)
 
 INIT_DEVICE_EXPORT(rt_hw_tpwm_init);
 
-#endif //if defined(BSP_USING_TPWM)
+#endif //#if (defined(BSP_USING_TPWM) && defined(RT_USING_PWM))
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_trng.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_trng.c
index 9d5e4e5925..778a14cb3d 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_trng.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_trng.c
@@ -12,9 +12,10 @@
 
 #include <rtconfig.h>
 
-#if defined(BSP_USING_TRNG)
+#if (defined(BSP_USING_TRNG) && defined(RT_HWCRYPTO_USING_RNG))
 
 #include <rtdevice.h>
+#include <stdlib.h>
 #include "NuMicro.h"
 
 #define NU_CRYPTO_TRNG_NAME "nu_TRNG"
@@ -78,5 +79,4 @@ rt_uint32_t nu_trng_rand(struct hwcrypto_rng *ctx)
     return nu_trng_run();
 }
 
-
-#endif
+#endif //#if (defined(BSP_USING_TRNG) && defined(RT_HWCRYPTO_USING_RNG))
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_uart.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_uart.c
index 147972e9db..58072dcdb7 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_uart.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_uart.c
@@ -561,7 +561,8 @@ static rt_err_t nu_pdma_uart_rx_config(struct rt_serial_device *serial, uint8_t
 
 static void nu_pdma_uart_rx_cb(void *pvOwner, uint32_t u32Events)
 {
-    rt_size_t recv_len, transferred_rxbyte = 0;
+    rt_size_t recv_len=0;
+	  rt_size_t transferred_rxbyte = 0;
     struct rt_serial_device *serial = (struct rt_serial_device *)pvOwner;
     nu_uart_t puart = (nu_uart_t)serial;
     RT_ASSERT(serial != RT_NULL);
@@ -661,6 +662,8 @@ static rt_size_t nu_uart_dma_transmit(struct rt_serial_device *serial, rt_uint8_
     }
     else if (direction == RT_SERIAL_DMA_RX)
     {
+        UART_DISABLE_INT(uart_base, UART_INTEN_RLSIEN_Msk);
+        UART_PDMA_DISABLE(uart_base, UART_INTEN_RXPDMAEN_Msk);
         // If config.bufsz = 0, serial will trigger once.
         ((nu_uart_t)serial)->rxdma_trigger_len = size;
         ((nu_uart_t)serial)->rx_write_offset = 0;
@@ -728,9 +731,11 @@ static rt_err_t nu_uart_control(struct rt_serial_device *serial, int cmd, void *
         else if (ctrl_arg == RT_DEVICE_FLAG_DMA_RX) /* Disable DMA-RX */
         {
             /* Disable Receive Line interrupt & Stop DMA RX transfer. */
+#if defined(RT_SERIAL_USING_DMA)
             nu_pdma_channel_terminate(((nu_uart_t)serial)->pdma_chanid_rx);
             UART_DISABLE_INT(uart_base, UART_INTEN_RLSIEN_Msk);
             UART_PDMA_DISABLE(uart_base, UART_INTEN_RXPDMAEN_Msk);
+#endif
         }
         break;
 
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_ui2c.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_ui2c.c
index 01ce110350..52d7e53e71 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_ui2c.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_ui2c.c
@@ -12,7 +12,7 @@
 
 #include <rtconfig.h>
 
-#if defined(BSP_USING_UI2C)
+#if (defined(BSP_USING_UI2C) && defined(RT_USING_I2C))
 
 #include <rtdevice.h>
 #include <NuMicro.h>
@@ -378,4 +378,4 @@ int rt_hw_ui2c_init(void)
 
 INIT_DEVICE_EXPORT(rt_hw_ui2c_init);
 
-#endif //#if defined(BSP_USING_UI2C)
+#endif //#if (defined(BSP_USING_UI2C) && defined(RT_USING_I2C))
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_uuart.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_uuart.c
index f365ffe025..0ced7ea397 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_uuart.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_uuart.c
@@ -333,7 +333,8 @@ static rt_err_t nu_pdma_uuart_rx_config(struct rt_serial_device *serial, uint8_t
 
 static void nu_pdma_uuart_rx_cb(void *pvOwner, uint32_t u32Events)
 {
-    rt_size_t recv_len, transferred_rxbyte = 0;
+    rt_size_t recv_len = 0;
+    rt_size_t transferred_rxbyte = 0;
     struct rt_serial_device *serial = (struct rt_serial_device *)pvOwner;
     nu_uuart_t puuart = (nu_uuart_t)serial;
     RT_ASSERT(serial != RT_NULL);
@@ -498,10 +499,10 @@ static rt_err_t nu_uuart_control(struct rt_serial_device *serial, int cmd, void
         else if (ctrl_arg == RT_DEVICE_FLAG_DMA_RX) /* Disable DMA-RX */
         {
             /* Disable Receive Line interrupt & Stop DMA RX transfer. */
+            flag = UUART_RLS_INT_MASK;
             nu_pdma_channel_terminate(((nu_uuart_t)serial)->pdma_chanid_rx);
             UUART_PDMA_DISABLE(uuart_base, UUART_PDMACTL_RXPDMAEN_Msk);
             UUART_DisableInt(uuart_base, flag);
-
         }
         break;
 
diff --git a/bsp/nuvoton/libraries/m480/rtt_port/drv_wdt.c b/bsp/nuvoton/libraries/m480/rtt_port/drv_wdt.c
index 0ce544f8b5..a4160600e6 100644
--- a/bsp/nuvoton/libraries/m480/rtt_port/drv_wdt.c
+++ b/bsp/nuvoton/libraries/m480/rtt_port/drv_wdt.c
@@ -296,7 +296,7 @@ static rt_err_t wdt_init(rt_watchdog_t *dev)
 
 static uint32_t wdt_get_working_hz(void)
 {
-    uint32_t clk, hz;
+    uint32_t clk, hz = 0;
 
     clk = wdt_get_module_clock();
 
@@ -313,6 +313,9 @@ static uint32_t wdt_get_working_hz(void)
     case CLK_CLKSEL1_WDTSEL_HCLK_DIV2048:
         hz = CLK_GetHCLKFreq() / 2048;
         break;
+
+    default:
+        break;
     }
 
     return hz;
diff --git a/bsp/nuvoton/libraries/nu_packages/AudioCodec/acodec_nau88l25.c b/bsp/nuvoton/libraries/nu_packages/AudioCodec/acodec_nau88l25.c
index 563b041a5f..65b2f4afba 100644
--- a/bsp/nuvoton/libraries/nu_packages/AudioCodec/acodec_nau88l25.c
+++ b/bsp/nuvoton/libraries/nu_packages/AudioCodec/acodec_nau88l25.c
@@ -40,7 +40,7 @@ static rt_err_t nau88l25_mixer_query(rt_uint32_t ui32Units, rt_uint32_t *ui32Val
 nu_acodec_ops nu_acodec_ops_nau88l25 =
 {
     .name = "NAU88L25",
-    .role = NuAcodecRole_Master,
+    .role = NU_ACODEC_ROLE_MASTER,
     .config = { // Default settings.
         .samplerate = 48000,
         .channels = 2,
@@ -299,7 +299,7 @@ static rt_err_t nau88l25_init(void)
     I2C_WriteNAU88L25(REG_SAR_CTRL,  RES_SEL_70K_OHMS | COMP_SPEED_1US | SAMPLE_SPEED_4US);
     I2C_WriteNAU88L25(REG_I2S_PCM_CTRL1,  AIFMT0_STANDI2S);
 
-    if (nu_acodec_ops_nau88l25.role == NuAcodecRole_Master)
+    if (nu_acodec_ops_nau88l25.role == NU_ACODEC_ROLE_MASTER)
     {
         I2C_WriteNAU88L25(REG_I2S_PCM_CTRL2,  LRC_DIV_DIV32 | ADCDAT0_OE | MS0_MASTER | BLCKDIV_DIV8);   //301A:Master 3012:Slave
     }
diff --git a/bsp/nuvoton/libraries/nu_packages/Demo/usbd_hid_dance_mouse.c b/bsp/nuvoton/libraries/nu_packages/Demo/usbd_hid_dance_mouse.c
index c1abd1fa1a..a144c85155 100644
--- a/bsp/nuvoton/libraries/nu_packages/Demo/usbd_hid_dance_mouse.c
+++ b/bsp/nuvoton/libraries/nu_packages/Demo/usbd_hid_dance_mouse.c
@@ -36,7 +36,7 @@ static void usb_thread_entry(void *parameter)
 {
     int8_t i8MouseTable[] = { -16, -16, -16, 0, 16, 16, 16, 0};
     uint8_t u8MouseIdx = 0;
-    uint8_t u8MoveLen, u8MouseMode = 1;
+    uint8_t u8MoveLen=0, u8MouseMode = 1;
     uint8_t pu8Buf[4];
 
     rt_device_t device = (rt_device_t)parameter;
diff --git a/bsp/nuvoton/numaker-iot-m487/.config b/bsp/nuvoton/numaker-iot-m487/.config
index 81aabefb45..4b62955898 100644
--- a/bsp/nuvoton/numaker-iot-m487/.config
+++ b/bsp/nuvoton/numaker-iot-m487/.config
@@ -631,7 +631,7 @@ CONFIG_NU_PKG_USING_NAU88L25=y
 CONFIG_SOC_SERIES_M480=y
 # CONFIG_BSP_USE_STDDRIVER_SOURCE is not set
 CONFIG_BSP_USING_PDMA=y
-CONFIG_NU_PDMA_MEMFUN_ACTOR_MAX=4
+CONFIG_NU_PDMA_MEMFUN_ACTOR_MAX=2
 CONFIG_BSP_USING_FMC=y
 CONFIG_BSP_USING_GPIO=y
 CONFIG_BSP_USING_CLK=y
@@ -641,7 +641,10 @@ CONFIG_BSP_USING_RTC=y
 # CONFIG_NU_RTC_SUPPORT_IO_RW is not set
 CONFIG_NU_RTC_SUPPORT_MSH_CMD=y
 # CONFIG_BSP_USING_EADC is not set
-# CONFIG_BSP_USING_TMR is not set
+CONFIG_BSP_USING_TMR=y
+# CONFIG_BSP_USING_TMR0 is not set
+# CONFIG_BSP_USING_TMR1 is not set
+# CONFIG_BSP_USING_TMR2 is not set
 CONFIG_BSP_USING_UART=y
 CONFIG_BSP_USING_UART0=y
 # CONFIG_BSP_USING_UART0_TX_DMA is not set
@@ -682,10 +685,9 @@ CONFIG_NU_SDH_HOTPLUG=y
 CONFIG_BSP_USING_SPI=y
 CONFIG_BSP_USING_SPI_PDMA=y
 # CONFIG_BSP_USING_SPII2S is not set
-# CONFIG_BSP_USING_SPI0_NONE is not set
-CONFIG_BSP_USING_SPI0=y
+CONFIG_BSP_USING_SPI0_NONE=y
+# CONFIG_BSP_USING_SPI0 is not set
 # CONFIG_BSP_USING_SPII2S0 is not set
-CONFIG_BSP_USING_SPI0_PDMA=y
 # CONFIG_BSP_USING_SPI1_NONE is not set
 CONFIG_BSP_USING_SPI1=y
 # CONFIG_BSP_USING_SPII2S1 is not set
diff --git a/bsp/nuvoton/numaker-iot-m487/rtconfig.py b/bsp/nuvoton/numaker-iot-m487/rtconfig.py
index ea40712afa..902a2bdce9 100644
--- a/bsp/nuvoton/numaker-iot-m487/rtconfig.py
+++ b/bsp/nuvoton/numaker-iot-m487/rtconfig.py
@@ -40,7 +40,7 @@ if PLATFORM == 'gcc':
     OBJDUMP = PREFIX + 'objdump'
     OBJCPY = PREFIX + 'objcopy'
 
-    DEVICE = ' -mcpu=cortex-m4 -mthumb -ffunction-sections -fdata-sections'
+    DEVICE = ' -mcpu=cortex-m4 -mthumb -ffunction-sections -fdata-sections -Wuninitialized'
 
     if BUILD == 'debug':
         DEVICE = DEVICE + ' -DDEBUG'
diff --git a/bsp/nuvoton/numaker-pfm-m487/.config b/bsp/nuvoton/numaker-pfm-m487/.config
index 7f58cb2b61..bdb0764da6 100644
--- a/bsp/nuvoton/numaker-pfm-m487/.config
+++ b/bsp/nuvoton/numaker-pfm-m487/.config
@@ -633,7 +633,7 @@ CONFIG_NU_PKG_USING_NAU88L25=y
 CONFIG_SOC_SERIES_M480=y
 # CONFIG_BSP_USE_STDDRIVER_SOURCE is not set
 CONFIG_BSP_USING_PDMA=y
-CONFIG_NU_PDMA_MEMFUN_ACTOR_MAX=4
+CONFIG_NU_PDMA_MEMFUN_ACTOR_MAX=2
 CONFIG_BSP_USING_FMC=y
 CONFIG_BSP_USING_GPIO=y
 CONFIG_BSP_USING_CLK=y
@@ -645,34 +645,29 @@ CONFIG_BSP_USING_RTC=y
 # CONFIG_NU_RTC_SUPPORT_IO_RW is not set
 CONFIG_NU_RTC_SUPPORT_MSH_CMD=y
 # CONFIG_BSP_USING_EADC is not set
-# CONFIG_BSP_USING_TMR is not set
+CONFIG_BSP_USING_TMR=y
+# CONFIG_BSP_USING_TMR0 is not set
+# CONFIG_BSP_USING_TMR1 is not set
+# CONFIG_BSP_USING_TMR2 is not set
 CONFIG_BSP_USING_UART=y
 CONFIG_BSP_USING_UART0=y
 # CONFIG_BSP_USING_UART0_TX_DMA is not set
 # CONFIG_BSP_USING_UART0_RX_DMA is not set
 # CONFIG_BSP_USING_UART1 is not set
-CONFIG_BSP_USING_UART2=y
-CONFIG_BSP_USING_UART2_TX_DMA=y
-CONFIG_BSP_USING_UART2_RX_DMA=y
+# CONFIG_BSP_USING_UART2 is not set
 # CONFIG_BSP_USING_UART3 is not set
 # CONFIG_BSP_USING_UART4 is not set
 # CONFIG_BSP_USING_UART5 is not set
 # CONFIG_BSP_USING_UART6 is not set
 # CONFIG_BSP_USING_UART7 is not set
 CONFIG_BSP_USING_I2C=y
-CONFIG_BSP_USING_I2C0=y
+# CONFIG_BSP_USING_I2C0 is not set
 CONFIG_BSP_USING_I2C1=y
 CONFIG_BSP_USING_I2C2=y
-CONFIG_BSP_USING_USCI=y
-CONFIG_BSP_USING_UUART=y
-# CONFIG_BSP_USING_USPI_PDMA is not set
-CONFIG_BSP_USING_USCI0=y
-CONFIG_BSP_USING_UUART0=y
+# CONFIG_BSP_USING_USCI is not set
+# CONFIG_BSP_USING_UUART0 is not set
 # CONFIG_BSP_USING_UI2C0 is not set
 # CONFIG_BSP_USING_USPI0 is not set
-CONFIG_BSP_USING_UUART0_TX_DMA=y
-CONFIG_BSP_USING_UUART0_RX_DMA=y
-# CONFIG_BSP_USING_USCI1 is not set
 CONFIG_BSP_USING_SDH=y
 CONFIG_BSP_USING_SDH0=y
 # CONFIG_BSP_USING_SDH1 is not set
@@ -682,22 +677,21 @@ CONFIG_NU_SDH_HOTPLUG=y
 # CONFIG_BSP_USING_BPWM is not set
 # CONFIG_BSP_USING_EPWM is not set
 CONFIG_BSP_USING_SPI=y
-CONFIG_BSP_USING_SPI_PDMA=y
+# CONFIG_BSP_USING_SPI_PDMA is not set
 # CONFIG_BSP_USING_SPII2S is not set
-# CONFIG_BSP_USING_SPI0_NONE is not set
-CONFIG_BSP_USING_SPI0=y
+CONFIG_BSP_USING_SPI0_NONE=y
+# CONFIG_BSP_USING_SPI0 is not set
 # CONFIG_BSP_USING_SPII2S0 is not set
-CONFIG_BSP_USING_SPI0_PDMA=y
-# CONFIG_BSP_USING_SPI1_NONE is not set
-CONFIG_BSP_USING_SPI1=y
+CONFIG_BSP_USING_SPI1_NONE=y
+# CONFIG_BSP_USING_SPI1 is not set
 # CONFIG_BSP_USING_SPII2S1 is not set
-CONFIG_BSP_USING_SPI1_PDMA=y
 CONFIG_BSP_USING_SPI2_NONE=y
 # CONFIG_BSP_USING_SPI2 is not set
 # CONFIG_BSP_USING_SPII2S2 is not set
-CONFIG_BSP_USING_SPI3_NONE=y
-# CONFIG_BSP_USING_SPI3 is not set
+# CONFIG_BSP_USING_SPI3_NONE is not set
+CONFIG_BSP_USING_SPI3=y
 # CONFIG_BSP_USING_SPII2S3 is not set
+# CONFIG_BSP_USING_SPI3_PDMA is not set
 CONFIG_BSP_USING_I2S=y
 CONFIG_NU_I2S_DMA_FIFO_SIZE=2048
 CONFIG_BSP_USING_QSPI=y
diff --git a/bsp/nuvoton/numaker-pfm-m487/rtconfig.py b/bsp/nuvoton/numaker-pfm-m487/rtconfig.py
index ea40712afa..902a2bdce9 100644
--- a/bsp/nuvoton/numaker-pfm-m487/rtconfig.py
+++ b/bsp/nuvoton/numaker-pfm-m487/rtconfig.py
@@ -40,7 +40,7 @@ if PLATFORM == 'gcc':
     OBJDUMP = PREFIX + 'objdump'
     OBJCPY = PREFIX + 'objcopy'
 
-    DEVICE = ' -mcpu=cortex-m4 -mthumb -ffunction-sections -fdata-sections'
+    DEVICE = ' -mcpu=cortex-m4 -mthumb -ffunction-sections -fdata-sections -Wuninitialized'
 
     if BUILD == 'debug':
         DEVICE = DEVICE + ' -DDEBUG'