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/********************************** (C) COPYRIGHT *******************************
* File Name : ch32f20x_dma.c
* Author : WCH
* Version : V1.0.0
* Date : 2021/08/08
* Description : This file provides all the DMA firmware functions.
*******************************************************************************/
#include "ch32f20x_dma.h"
#include "ch32f20x_rcc.h"
/* DMA1 Channelx interrupt pending bit masks */
#define DMA1_Channel1_IT_Mask ((uint32_t)(DMA_GIF1 | DMA_TCIF1 | DMA_HTIF1 | DMA_TEIF1))
#define DMA1_Channel2_IT_Mask ((uint32_t)(DMA_GIF2 | DMA_TCIF2 | DMA_HTIF2 | DMA_TEIF2))
#define DMA1_Channel3_IT_Mask ((uint32_t)(DMA_GIF3 | DMA_TCIF3 | DMA_HTIF3 | DMA_TEIF3))
#define DMA1_Channel4_IT_Mask ((uint32_t)(DMA_GIF4 | DMA_TCIF4 | DMA_HTIF4 | DMA_TEIF4))
#define DMA1_Channel5_IT_Mask ((uint32_t)(DMA_GIF5 | DMA_TCIF5 | DMA_HTIF5 | DMA_TEIF5))
#define DMA1_Channel6_IT_Mask ((uint32_t)(DMA_GIF6 | DMA_TCIF6 | DMA_HTIF6 | DMA_TEIF6))
#define DMA1_Channel7_IT_Mask ((uint32_t)(DMA_GIF7 | DMA_TCIF7 | DMA_HTIF7 | DMA_TEIF7))
/* DMA2 Channelx interrupt pending bit masks */
#define DMA2_Channel1_IT_Mask ((uint32_t)(DMA_GIF1 | DMA_TCIF1 | DMA_HTIF1 | DMA_TEIF1))
#define DMA2_Channel2_IT_Mask ((uint32_t)(DMA_GIF2 | DMA_TCIF2 | DMA_HTIF2 | DMA_TEIF2))
#define DMA2_Channel3_IT_Mask ((uint32_t)(DMA_GIF3 | DMA_TCIF3 | DMA_HTIF3 | DMA_TEIF3))
#define DMA2_Channel4_IT_Mask ((uint32_t)(DMA_GIF4 | DMA_TCIF4 | DMA_HTIF4 | DMA_TEIF4))
#define DMA2_Channel5_IT_Mask ((uint32_t)(DMA_GIF5 | DMA_TCIF5 | DMA_HTIF5 | DMA_TEIF5))
#define DMA2_Channel6_IT_Mask ((uint32_t)(DMA_GIF6 | DMA_TCIF6 | DMA_HTIF6 | DMA_TEIF6))
#define DMA2_Channel7_IT_Mask ((uint32_t)(DMA_GIF7 | DMA_TCIF7 | DMA_HTIF7 | DMA_TEIF7))
#define DMA2_Channel8_IT_Mask ((uint32_t)(DMA_GIF8 | DMA_TCIF8 | DMA_HTIF8 | DMA_TEIF8))
#define DMA2_Channel9_IT_Mask ((uint32_t)(DMA_GIF9 | DMA_TCIF9 | DMA_HTIF9 | DMA_TEIF9))
#define DMA2_Channel10_IT_Mask ((uint32_t)(DMA_GIF10 | DMA_TCIF10 | DMA_HTIF10 | DMA_TEIF10))
#define DMA2_Channel11_IT_Mask ((uint32_t)(DMA_GIF11 | DMA_TCIF11 | DMA_HTIF11 | DMA_TEIF11))
/* DMA2 FLAG mask */
#define FLAG_Mask ((uint32_t)0x10000000)
#define DMA2_EXTEN_FLAG_Mask ((uint32_t)0x20000000)
/* DMA registers Masks */
#define CFGR_CLEAR_Mask ((uint32_t)0xFFFF800F)
/********************************************************************************
* Function Name : DMA_DeInit
* Description : Deinitializes the DMAy Channelx registers to their default reset
* values.
* Input : DMAy_Channelx:here y can be 1 or 2 to select the DMA and x can be
* 1 to 7 for DMA1 and 1 to 5 for DMA2 to select the
* DMA Channel.
* Return : None
*********************************************************************************/
void DMA_DeInit(DMA_Channel_TypeDef* DMAy_Channelx)
{
DMAy_Channelx->CFGR &= (uint16_t)(~DMA_CFGR1_EN);
DMAy_Channelx->CFGR = 0;
DMAy_Channelx->CNTR = 0;
DMAy_Channelx->PADDR = 0;
DMAy_Channelx->MADDR = 0;
if (DMAy_Channelx == DMA1_Channel1)
{
DMA1->INTFCR |= DMA1_Channel1_IT_Mask;
}
else if (DMAy_Channelx == DMA1_Channel2)
{
DMA1->INTFCR |= DMA1_Channel2_IT_Mask;
}
else if (DMAy_Channelx == DMA1_Channel3)
{
DMA1->INTFCR |= DMA1_Channel3_IT_Mask;
}
else if (DMAy_Channelx == DMA1_Channel4)
{
DMA1->INTFCR |= DMA1_Channel4_IT_Mask;
}
else if (DMAy_Channelx == DMA1_Channel5)
{
DMA1->INTFCR |= DMA1_Channel5_IT_Mask;
}
else if (DMAy_Channelx == DMA1_Channel6)
{
DMA1->INTFCR |= DMA1_Channel6_IT_Mask;
}
else if (DMAy_Channelx == DMA1_Channel7)
{
DMA1->INTFCR |= DMA1_Channel7_IT_Mask;
}
else if (DMAy_Channelx == DMA2_Channel1)
{
DMA2->INTFCR |= DMA2_Channel1_IT_Mask;
}
else if (DMAy_Channelx == DMA2_Channel2)
{
DMA2->INTFCR |= DMA2_Channel2_IT_Mask;
}
else if (DMAy_Channelx == DMA2_Channel3)
{
DMA2->INTFCR |= DMA2_Channel3_IT_Mask;
}
else if (DMAy_Channelx == DMA2_Channel4)
{
DMA2->INTFCR |= DMA2_Channel4_IT_Mask;
}
else if (DMAy_Channelx == DMA2_Channel5)
{
DMA2->INTFCR |= DMA2_Channel5_IT_Mask;
}
else if (DMAy_Channelx == DMA2_Channel6)
{
DMA2->INTFCR |= DMA2_Channel6_IT_Mask;
}
else if (DMAy_Channelx == DMA2_Channel7)
{
DMA2->INTFCR |= DMA2_Channel7_IT_Mask;
}
else if (DMAy_Channelx == DMA2_Channel8)
{
DMA2_EXTEN->INTFCR |= DMA2_Channel8_IT_Mask;
}
else if (DMAy_Channelx == DMA2_Channel9)
{
DMA2_EXTEN->INTFCR |= DMA2_Channel9_IT_Mask;
}
else if (DMAy_Channelx == DMA2_Channel10)
{
DMA2_EXTEN->INTFCR |= DMA2_Channel10_IT_Mask;
}
else if (DMAy_Channelx == DMA2_Channel11)
{
DMA2_EXTEN->INTFCR |= DMA2_Channel11_IT_Mask;
}
}
/********************************************************************************
* Function Name : DMA_Init
* Description : Initializes the DMAy Channelx according to the specified
* parameters in the DMA_InitStruct.
* Input : DMAy_Channelx:here y can be 1 or 2 to select the DMA and x can be
* 1 to 7 for DMA1 and 1 to 5 for DMA2 to select the
* DMA Channel.
* DMA_InitStruct:pointer to a DMA_InitTypeDef structure that
* contains the configuration information for the
* specified DMA Channel.
* Return : None
*********************************************************************************/
void DMA_Init(DMA_Channel_TypeDef* DMAy_Channelx, DMA_InitTypeDef* DMA_InitStruct)
{
uint32_t tmpreg = 0;
tmpreg = DMAy_Channelx->CFGR;
tmpreg &= CFGR_CLEAR_Mask;
tmpreg |= DMA_InitStruct->DMA_DIR | DMA_InitStruct->DMA_Mode |
DMA_InitStruct->DMA_PeripheralInc | DMA_InitStruct->DMA_MemoryInc |
DMA_InitStruct->DMA_PeripheralDataSize | DMA_InitStruct->DMA_MemoryDataSize |
DMA_InitStruct->DMA_Priority | DMA_InitStruct->DMA_M2M;
DMAy_Channelx->CFGR = tmpreg;
DMAy_Channelx->CNTR = DMA_InitStruct->DMA_BufferSize;
DMAy_Channelx->PADDR = DMA_InitStruct->DMA_PeripheralBaseAddr;
DMAy_Channelx->MADDR = DMA_InitStruct->DMA_MemoryBaseAddr;
}
/********************************************************************************
* Function Name : DMA_StructInit
* Description : Fills each DMA_InitStruct member with its default value.
* Input : DMA_InitStruct : pointer to a DMA_InitTypeDef structure which will
* 1 to 7 for DMA1 and 1 to 5 for DMA2 to select the
* be initialized.
* Return : None
*********************************************************************************/
void DMA_StructInit(DMA_InitTypeDef* DMA_InitStruct)
{
DMA_InitStruct->DMA_PeripheralBaseAddr = 0;
DMA_InitStruct->DMA_MemoryBaseAddr = 0;
DMA_InitStruct->DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStruct->DMA_BufferSize = 0;
DMA_InitStruct->DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStruct->DMA_MemoryInc = DMA_MemoryInc_Disable;
DMA_InitStruct->DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
DMA_InitStruct->DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
DMA_InitStruct->DMA_Mode = DMA_Mode_Normal;
DMA_InitStruct->DMA_Priority = DMA_Priority_Low;
DMA_InitStruct->DMA_M2M = DMA_M2M_Disable;
}
/********************************************************************************
* Function Name : DMA_Cmd
* Description : Enables or disables the specified DMAy Channelx.
* Input : DMAy_Channelx: where y can be 1 or 2 to select the DMA and x can
* be 1 to 7 for DMA1 and 1 to 5 for DMA2 to select
* the DMA Channel.
* NewState : new state of the DMAy Channelx(ENABLE or DISABLE).
* Return : None
*********************************************************************************/
void DMA_Cmd(DMA_Channel_TypeDef* DMAy_Channelx, FunctionalState NewState)
{
if (NewState != DISABLE)
{
DMAy_Channelx->CFGR |= DMA_CFGR1_EN;
}
else
{
DMAy_Channelx->CFGR &= (uint16_t)(~DMA_CFGR1_EN);
}
}
/********************************************************************************
* Function Name : DMA_ITConfig
* Description : Enables or disables the specified DMAy Channelx interrupts.
* Input : DMAy_Channelx: where y can be 1 or 2 to select the DMA and x can
* be 1 to 7 for DMA1 and 1 to 5 for DMA2 to select
* the DMA Channel.
* DMA_IT : specifies the DMA interrupts sources to be enabled
* or disabled.
* DMA_IT_TC : Transfer complete interrupt mask
* DMA_IT_HT : Half transfer interrupt mask
* DMA_IT_TE : Transfer error interrupt mask
* NewState : new state of the DMAy Channelx(ENABLE or DISABLE).
* Return : None
*********************************************************************************/
void DMA_ITConfig(DMA_Channel_TypeDef* DMAy_Channelx, uint32_t DMA_IT, FunctionalState NewState)
{
if (NewState != DISABLE)
{
DMAy_Channelx->CFGR |= DMA_IT;
}
else
{
DMAy_Channelx->CFGR &= ~DMA_IT;
}
}
/********************************************************************************
* Function Name : DMA_SetCurrDataCounter
* Description : Sets the number of data units in the current DMAy Channelx transfer.
* Input : DMAy_Channelx: where y can be 1 or 2 to select the DMA and x can
* be 1 to 7 for DMA1 and 1 to 5 for DMA2 to select
* the DMA Channel.
* DataNumber : The number of data units in the current DMAy Channelx
* transfer.
* Return : None
*********************************************************************************/
void DMA_SetCurrDataCounter(DMA_Channel_TypeDef* DMAy_Channelx, uint16_t DataNumber)
{
DMAy_Channelx->CNTR = DataNumber;
}
/********************************************************************************
* Function Name : DMA_GetCurrDataCounter
* Description : Returns the number of remaining data units in the current DMAy Channelx transfer.
* Input : DMAy_Channelx: where y can be 1 or 2 to select the DMA and x can
* be 1 to 7 for DMA1 and 1 to 5 for DMA2 to select
* the DMA Channel.
* Return : DataNumber : The number of remaining data units in the current
* DMAy Channelx transfer.
*********************************************************************************/
uint16_t DMA_GetCurrDataCounter(DMA_Channel_TypeDef* DMAy_Channelx)
{
return ((uint16_t)(DMAy_Channelx->CNTR));
}
/********************************************************************************
* Function Name : DMA_GetFlagStatus
* Description : Checks whether the specified DMAy Channelx flag is set or not.
* Input : DMAy_FLAG: specifies the flag to check.
* DMA1_FLAG_GL1: DMA1 Channel1 global flag.
* DMA1_FLAG_TC1: DMA1 Channel1 transfer complete flag.
* DMA1_FLAG_HT1: DMA1 Channel1 half transfer flag.
* DMA1_FLAG_TE1: DMA1 Channel1 transfer error flag.
* DMA1_FLAG_GL2: DMA1 Channel2 global flag.
* DMA1_FLAG_TC2: DMA1 Channel2 transfer complete flag.
* DMA1_FLAG_HT2: DMA1 Channel2 half transfer flag.
* DMA1_FLAG_TE2: DMA1 Channel2 transfer error flag.
* DMA1_FLAG_GL3: DMA1 Channel3 global flag.
* DMA1_FLAG_TC3: DMA1 Channel3 transfer complete flag.
* DMA1_FLAG_HT3: DMA1 Channel3 half transfer flag.
* DMA1_FLAG_TE3: DMA1 Channel3 transfer error flag.
* DMA1_FLAG_GL4: DMA1 Channel4 global flag.
* DMA1_FLAG_TC4: DMA1 Channel4 transfer complete flag.
* DMA1_FLAG_HT4: DMA1 Channel4 half transfer flag.
* DMA1_FLAG_TE4: DMA1 Channel4 transfer error flag.
* DMA1_FLAG_GL5: DMA1 Channel5 global flag.
* DMA1_FLAG_TC5: DMA1 Channel5 transfer complete flag.
* DMA1_FLAG_HT5: DMA1 Channel5 half transfer flag.
* DMA1_FLAG_TE5: DMA1 Channel5 transfer error flag.
* DMA1_FLAG_GL6: DMA1 Channel6 global flag.
* DMA1_FLAG_TC6: DMA1 Channel6 transfer complete flag.
* DMA1_FLAG_HT6: DMA1 Channel6 half transfer flag.
* DMA1_FLAG_TE6: DMA1 Channel6 transfer error flag.
* DMA1_FLAG_GL7: DMA1 Channel7 global flag.
* DMA1_FLAG_TC7: DMA1 Channel7 transfer complete flag.
* DMA1_FLAG_HT7: DMA1 Channel7 half transfer flag.
* DMA1_FLAG_TE7: DMA1 Channel7 transfer error flag.
* DMA2_FLAG_GL1: DMA2 Channel1 global flag.
* DMA2_FLAG_TC1: DMA2 Channel1 transfer complete flag.
* DMA2_FLAG_HT1: DMA2 Channel1 half transfer flag.
* DMA2_FLAG_TE1: DMA2 Channel1 transfer error flag.
* DMA2_FLAG_GL2: DMA2 Channel2 global flag.
* DMA2_FLAG_TC2: DMA2 Channel2 transfer complete flag.
* DMA2_FLAG_HT2: DMA2 Channel2 half transfer flag.
* DMA2_FLAG_TE2: DMA2 Channel2 transfer error flag.
* DMA2_FLAG_GL3: DMA2 Channel3 global flag.
* DMA2_FLAG_TC3: DMA2 Channel3 transfer complete flag.
* DMA2_FLAG_HT3: DMA2 Channel3 half transfer flag.
* DMA2_FLAG_TE3: DMA2 Channel3 transfer error flag.
* DMA2_FLAG_GL4: DMA2 Channel4 global flag.
* DMA2_FLAG_TC4: DMA2 Channel4 transfer complete flag.
* DMA2_FLAG_HT4: DMA2 Channel4 half transfer flag.
* DMA2_FLAG_TE4: DMA2 Channel4 transfer error flag.
* DMA2_FLAG_GL5: DMA2 Channel5 global flag.
* DMA2_FLAG_TC5: DMA2 Channel5 transfer complete flag.
* DMA2_FLAG_HT5: DMA2 Channel5 half transfer flag.
* DMA2_FLAG_TE5: DMA2 Channel5 transfer error flag.
* DMA2_FLAG_GL6: DMA2 Channel6 global flag.
* DMA2_FLAG_TC6: DMA2 Channel6 transfer complete flag.
* DMA2_FLAG_HT6: DMA2 Channel6 half transfer flag.
* DMA2_FLAG_TE6: DMA2 Channel6 transfer error flag.
* DMA2_FLAG_GL7: DMA2 Channel7 global flag.
* DMA2_FLAG_TC7: DMA2 Channel7 transfer complete flag.
* DMA2_FLAG_HT7: DMA2 Channel7 half transfer flag.
* DMA2_FLAG_TE7: DMA2 Channel7 transfer error flag.
* DMA2_FLAG_GL8: DMA2 Channel8 global flag.
* DMA2_FLAG_TC8: DMA2 Channel8 transfer complete flag.
* DMA2_FLAG_HT8: DMA2 Channel8 half transfer flag.
* DMA2_FLAG_TE8: DMA2 Channel8 transfer error flag.
* DMA2_FLAG_GL9: DMA2 Channel9 global flag.
* DMA2_FLAG_TC9: DMA2 Channel9 transfer complete flag.
* DMA2_FLAG_HT9: DMA2 Channel9 half transfer flag.
* DMA2_FLAG_TE9: DMA2 Channel9 transfer error flag.
* DMA2_FLAG_GL10: DMA2 Channel10 global flag.
* DMA2_FLAG_TC10: DMA2 Channel10 transfer complete flag.
* DMA2_FLAG_HT10: DMA2 Channel10 half transfer flag.
* DMA2_FLAG_TE10: DMA2 Channel10 transfer error flag.
* DMA2_FLAG_GL11: DMA2 Channel11 global flag.
* DMA2_FLAG_TC11: DMA2 Channel11 transfer complete flag.
* DMA2_FLAG_HT11: DMA2 Channel11 half transfer flag.
* DMA2_FLAG_TE11: DMA2 Channel11 transfer error flag.
* Return : The new state of DMAy_FLAG (SET or RESET).
*********************************************************************************/
FlagStatus DMA_GetFlagStatus(uint32_t DMAy_FLAG)
{
FlagStatus bitstatus = RESET;
uint32_t tmpreg = 0;
if ((DMAy_FLAG & FLAG_Mask) == FLAG_Mask)
{
tmpreg = DMA2->INTFR ;
}
else if((DMAy_FLAG & DMA2_EXTEN_FLAG_Mask) == DMA2_EXTEN_FLAG_Mask)
{
tmpreg = DMA2_EXTEN->INTFR;
}
else
{
tmpreg = DMA1->INTFR ;
}
if ((tmpreg & DMAy_FLAG) != (uint32_t)RESET)
{
bitstatus = SET;
}
else
{
bitstatus = RESET;
}
return bitstatus;
}
/********************************************************************************
* Function Name : DMA_ClearFlag
* Description : Clears the DMAy Channelx's pending flags.
* Input : DMAy_FLAG: specifies the flag to check.
* DMA1_FLAG_GL1: DMA1 Channel1 global flag.
* DMA1_FLAG_TC1: DMA1 Channel1 transfer complete flag.
* DMA1_FLAG_HT1: DMA1 Channel1 half transfer flag.
* DMA1_FLAG_TE1: DMA1 Channel1 transfer error flag.
* DMA1_FLAG_GL2: DMA1 Channel2 global flag.
* DMA1_FLAG_TC2: DMA1 Channel2 transfer complete flag.
* DMA1_FLAG_HT2: DMA1 Channel2 half transfer flag.
* DMA1_FLAG_TE2: DMA1 Channel2 transfer error flag.
* DMA1_FLAG_GL3: DMA1 Channel3 global flag.
* DMA1_FLAG_TC3: DMA1 Channel3 transfer complete flag.
* DMA1_FLAG_HT3: DMA1 Channel3 half transfer flag.
* DMA1_FLAG_TE3: DMA1 Channel3 transfer error flag.
* DMA1_FLAG_GL4: DMA1 Channel4 global flag.
* DMA1_FLAG_TC4: DMA1 Channel4 transfer complete flag.
* DMA1_FLAG_HT4: DMA1 Channel4 half transfer flag.
* DMA1_FLAG_TE4: DMA1 Channel4 transfer error flag.
* DMA1_FLAG_GL5: DMA1 Channel5 global flag.
* DMA1_FLAG_TC5: DMA1 Channel5 transfer complete flag.
* DMA1_FLAG_HT5: DMA1 Channel5 half transfer flag.
* DMA1_FLAG_TE5: DMA1 Channel5 transfer error flag.
* DMA1_FLAG_GL6: DMA1 Channel6 global flag.
* DMA1_FLAG_TC6: DMA1 Channel6 transfer complete flag.
* DMA1_FLAG_HT6: DMA1 Channel6 half transfer flag.
* DMA1_FLAG_TE6: DMA1 Channel6 transfer error flag.
* DMA1_FLAG_GL7: DMA1 Channel7 global flag.
* DMA1_FLAG_TC7: DMA1 Channel7 transfer complete flag.
* DMA1_FLAG_HT7: DMA1 Channel7 half transfer flag.
* DMA1_FLAG_TE7: DMA1 Channel7 transfer error flag.
* DMA2_FLAG_GL1: DMA2 Channel1 global flag.
* DMA2_FLAG_TC1: DMA2 Channel1 transfer complete flag.
* DMA2_FLAG_HT1: DMA2 Channel1 half transfer flag.
* DMA2_FLAG_TE1: DMA2 Channel1 transfer error flag.
* DMA2_FLAG_GL2: DMA2 Channel2 global flag.
* DMA2_FLAG_TC2: DMA2 Channel2 transfer complete flag.
* DMA2_FLAG_HT2: DMA2 Channel2 half transfer flag.
* DMA2_FLAG_TE2: DMA2 Channel2 transfer error flag.
* DMA2_FLAG_GL3: DMA2 Channel3 global flag.
* DMA2_FLAG_TC3: DMA2 Channel3 transfer complete flag.
* DMA2_FLAG_HT3: DMA2 Channel3 half transfer flag.
* DMA2_FLAG_TE3: DMA2 Channel3 transfer error flag.
* DMA2_FLAG_GL4: DMA2 Channel4 global flag.
* DMA2_FLAG_TC4: DMA2 Channel4 transfer complete flag.
* DMA2_FLAG_HT4: DMA2 Channel4 half transfer flag.
* DMA2_FLAG_TE4: DMA2 Channel4 transfer error flag.
* DMA2_FLAG_GL5: DMA2 Channel5 global flag.
* DMA2_FLAG_TC5: DMA2 Channel5 transfer complete flag.
* DMA2_FLAG_HT5: DMA2 Channel5 half transfer flag.
* DMA2_FLAG_TE5: DMA2 Channel5 transfer error flag.
* DMA2_FLAG_GL6: DMA2 Channel6 global flag.
* DMA2_FLAG_TC6: DMA2 Channel6 transfer complete flag.
* DMA2_FLAG_HT6: DMA2 Channel6 half transfer flag.
* DMA2_FLAG_TE6: DMA2 Channel6 transfer error flag.
* DMA2_FLAG_GL7: DMA2 Channel7 global flag.
* DMA2_FLAG_TC7: DMA2 Channel7 transfer complete flag.
* DMA2_FLAG_HT7: DMA2 Channel7 half transfer flag.
* DMA2_FLAG_TE7: DMA2 Channel7 transfer error flag.
* DMA2_FLAG_GL8: DMA2 Channel8 global flag.
* DMA2_FLAG_TC8: DMA2 Channel8 transfer complete flag.
* DMA2_FLAG_HT8: DMA2 Channel8 half transfer flag.
* DMA2_FLAG_TE8: DMA2 Channel8 transfer error flag.
* DMA2_FLAG_GL9: DMA2 Channel9 global flag.
* DMA2_FLAG_TC9: DMA2 Channel9 transfer complete flag.
* DMA2_FLAG_HT9: DMA2 Channel9 half transfer flag.
* DMA2_FLAG_TE9: DMA2 Channel9 transfer error flag.
* DMA2_FLAG_GL10: DMA2 Channel10 global flag.
* DMA2_FLAG_TC10: DMA2 Channel10 transfer complete flag.
* DMA2_FLAG_HT10: DMA2 Channel10 half transfer flag.
* DMA2_FLAG_TE10: DMA2 Channel10 transfer error flag.
* DMA2_FLAG_GL11: DMA2 Channel11 global flag.
* DMA2_FLAG_TC11: DMA2 Channel11 transfer complete flag.
* DMA2_FLAG_HT11: DMA2 Channel11 half transfer flag.
* DMA2_FLAG_TE11: DMA2 Channel11 transfer error flag.
* Return : None
*********************************************************************************/
void DMA_ClearFlag(uint32_t DMAy_FLAG)
{
if ((DMAy_FLAG & FLAG_Mask) == FLAG_Mask)
{
DMA2->INTFCR = DMAy_FLAG;
}
else if((DMAy_FLAG & DMA2_EXTEN_FLAG_Mask) == DMA2_EXTEN_FLAG_Mask)
{
DMA2_EXTEN->INTFCR = DMAy_FLAG;
}
else
{
DMA1->INTFCR = DMAy_FLAG;
}
}
/********************************************************************************
* Function Name : DMA_GetITStatus
* Description : Checks whether the specified DMAy Channelx interrupt has occurred
* or not.
* Input : DMAy_IT: specifies the DMAy interrupt source to check.
* DMA1_IT_GL1: DMA1 Channel1 global flag.
* DMA1_IT_TC1: DMA1 Channel1 transfer complete flag.
* DMA1_IT_HT1: DMA1 Channel1 half transfer flag.
* DMA1_IT_TE1: DMA1 Channel1 transfer error flag.
* DMA1_IT_GL2: DMA1 Channel2 global flag.
* DMA1_IT_TC2: DMA1 Channel2 transfer complete flag.
* DMA1_IT_HT2: DMA1 Channel2 half transfer flag.
* DMA1_IT_TE2: DMA1 Channel2 transfer error flag.
* DMA1_IT_GL3: DMA1 Channel3 global flag.
* DMA1_IT_TC3: DMA1 Channel3 transfer complete flag.
* DMA1_IT_HT3: DMA1 Channel3 half transfer flag.
* DMA1_IT_TE3: DMA1 Channel3 transfer error flag.
* DMA1_IT_GL4: DMA1 Channel4 global flag.
* DMA1_IT_TC4: DMA1 Channel4 transfer complete flag.
* DMA1_IT_HT4: DMA1 Channel4 half transfer flag.
* DMA1_IT_TE4: DMA1 Channel4 transfer error flag.
* DMA1_IT_GL5: DMA1 Channel5 global flag.
* DMA1_IT_TC5: DMA1 Channel5 transfer complete flag.
* DMA1_IT_HT5: DMA1 Channel5 half transfer flag.
* DMA1_IT_TE5: DMA1 Channel5 transfer error flag.
* DMA1_IT_GL6: DMA1 Channel6 global flag.
* DMA1_IT_TC6: DMA1 Channel6 transfer complete flag.
* DMA1_IT_HT6: DMA1 Channel6 half transfer flag.
* DMA1_IT_TE6: DMA1 Channel6 transfer error flag.
* DMA1_IT_GL7: DMA1 Channel7 global flag.
* DMA1_IT_TC7: DMA1 Channel7 transfer complete flag.
* DMA1_IT_HT7: DMA1 Channel7 half transfer flag.
* DMA1_IT_TE7: DMA1 Channel7 transfer error flag.
* DMA2_IT_GL1: DMA2 Channel1 global flag.
* DMA2_IT_TC1: DMA2 Channel1 transfer complete flag.
* DMA2_IT_HT1: DMA2 Channel1 half transfer flag.
* DMA2_IT_TE1: DMA2 Channel1 transfer error flag.
* DMA2_IT_GL2: DMA2 Channel2 global flag.
* DMA2_IT_TC2: DMA2 Channel2 transfer complete flag.
* DMA2_IT_HT2: DMA2 Channel2 half transfer flag.
* DMA2_IT_TE2: DMA2 Channel2 transfer error flag.
* DMA2_IT_GL3: DMA2 Channel3 global flag.
* DMA2_IT_TC3: DMA2 Channel3 transfer complete flag.
* DMA2_IT_HT3: DMA2 Channel3 half transfer flag.
* DMA2_IT_TE3: DMA2 Channel3 transfer error flag.
* DMA2_IT_GL4: DMA2 Channel4 global flag.
* DMA2_IT_TC4: DMA2 Channel4 transfer complete flag.
* DMA2_IT_HT4: DMA2 Channel4 half transfer flag.
* DMA2_IT_TE4: DMA2 Channel4 transfer error flag.
* DMA2_IT_GL5: DMA2 Channel5 global flag.
* DMA2_IT_TC5: DMA2 Channel5 transfer complete flag.
* DMA2_IT_HT5: DMA2 Channel5 half transfer flag.
* DMA2_IT_TE5: DMA2 Channel5 transfer error flag.
* DMA2_IT_GL6: DMA2 Channel6 global flag.
* DMA2_IT_TC6: DMA2 Channel6 transfer complete flag.
* DMA2_IT_HT6: DMA2 Channel6 half transfer flag.
* DMA2_IT_TE6: DMA2 Channel6 transfer error flag.
* DMA2_IT_GL7: DMA2 Channel7 global flag.
* DMA2_IT_TC7: DMA2 Channel7 transfer complete flag.
* DMA2_IT_HT7: DMA2 Channel7 half transfer flag.
* DMA2_IT_TE7: DMA2 Channel7 transfer error flag.
* DMA2_IT_GL8: DMA2 Channel8 global flag.
* DMA2_IT_TC8: DMA2 Channel8 transfer complete flag.
* DMA2_IT_HT8: DMA2 Channel8 half transfer flag.
* DMA2_IT_TE8: DMA2 Channel8 transfer error flag.
* DMA2_IT_GL9: DMA2 Channel9 global flag.
* DMA2_IT_TC9: DMA2 Channel9 transfer complete flag.
* DMA2_IT_HT9: DMA2 Channel9 half transfer flag.
* DMA2_IT_TE9: DMA2 Channel9 transfer error flag.
* DMA2_IT_GL10: DMA2 Channel10 global flag.
* DMA2_IT_TC10: DMA2 Channel10 transfer complete flag.
* DMA2_IT_HT10: DMA2 Channel10 half transfer flag.
* DMA2_IT_TE10: DMA2 Channel10 transfer error flag.
* DMA2_IT_GL11: DMA2 Channel11 global flag.
* DMA2_IT_TC11: DMA2 Channel11 transfer complete flag.
* DMA2_IT_HT11: DMA2 Channel11 half transfer flag.
* DMA2_IT_TE11: DMA2 Channel11 transfer error flag.
* Return : The new state of DMAy_IT (SET or RESET).
*********************************************************************************/
ITStatus DMA_GetITStatus(uint32_t DMAy_IT)
{
ITStatus bitstatus = RESET;
uint32_t tmpreg = 0;
if ((DMAy_IT & FLAG_Mask) == FLAG_Mask)
{
tmpreg = DMA2->INTFR;
}
else if((DMAy_IT & DMA2_EXTEN_FLAG_Mask) == DMA2_EXTEN_FLAG_Mask)
{
tmpreg = DMA2_EXTEN->INTFR;
}
else
{
tmpreg = DMA1->INTFR;
}
if ((tmpreg & DMAy_IT) != (uint32_t)RESET)
{
bitstatus = SET;
}
else
{
bitstatus = RESET;
}
return bitstatus;
}
/********************************************************************************
* Function Name : DMA_ClearITPendingBit
* Description : Clears the DMAy Channelx's interrupt pending bits.
* Input : DMAy_IT: specifies the DMAy interrupt source to clear.
* DMA1_IT_GL1: DMA1 Channel1 global flag.
* DMA1_IT_TC1: DMA1 Channel1 transfer complete flag.
* DMA1_IT_HT1: DMA1 Channel1 half transfer flag.
* DMA1_IT_TE1: DMA1 Channel1 transfer error flag.
* DMA1_IT_GL2: DMA1 Channel2 global flag.
* DMA1_IT_TC2: DMA1 Channel2 transfer complete flag.
* DMA1_IT_HT2: DMA1 Channel2 half transfer flag.
* DMA1_IT_TE2: DMA1 Channel2 transfer error flag.
* DMA1_IT_GL3: DMA1 Channel3 global flag.
* DMA1_IT_TC3: DMA1 Channel3 transfer complete flag.
* DMA1_IT_HT3: DMA1 Channel3 half transfer flag.
* DMA1_IT_TE3: DMA1 Channel3 transfer error flag.
* DMA1_IT_GL4: DMA1 Channel4 global flag.
* DMA1_IT_TC4: DMA1 Channel4 transfer complete flag.
* DMA1_IT_HT4: DMA1 Channel4 half transfer flag.
* DMA1_IT_TE4: DMA1 Channel4 transfer error flag.
* DMA1_IT_GL5: DMA1 Channel5 global flag.
* DMA1_IT_TC5: DMA1 Channel5 transfer complete flag.
* DMA1_IT_HT5: DMA1 Channel5 half transfer flag.
* DMA1_IT_TE5: DMA1 Channel5 transfer error flag.
* DMA1_IT_GL6: DMA1 Channel6 global flag.
* DMA1_IT_TC6: DMA1 Channel6 transfer complete flag.
* DMA1_IT_HT6: DMA1 Channel6 half transfer flag.
* DMA1_IT_TE6: DMA1 Channel6 transfer error flag.
* DMA1_IT_GL7: DMA1 Channel7 global flag.
* DMA1_IT_TC7: DMA1 Channel7 transfer complete flag.
* DMA1_IT_HT7: DMA1 Channel7 half transfer flag.
* DMA1_IT_TE7: DMA1 Channel7 transfer error flag.
* DMA2_IT_GL1: DMA2 Channel1 global flag.
* DMA2_IT_TC1: DMA2 Channel1 transfer complete flag.
* DMA2_IT_HT1: DMA2 Channel1 half transfer flag.
* DMA2_IT_TE1: DMA2 Channel1 transfer error flag.
* DMA2_IT_GL2: DMA2 Channel2 global flag.
* DMA2_IT_TC2: DMA2 Channel2 transfer complete flag.
* DMA2_IT_HT2: DMA2 Channel2 half transfer flag.
* DMA2_IT_TE2: DMA2 Channel2 transfer error flag.
* DMA2_IT_GL3: DMA2 Channel3 global flag.
* DMA2_IT_TC3: DMA2 Channel3 transfer complete flag.
* DMA2_IT_HT3: DMA2 Channel3 half transfer flag.
* DMA2_IT_TE3: DMA2 Channel3 transfer error flag.
* DMA2_IT_GL4: DMA2 Channel4 global flag.
* DMA2_IT_TC4: DMA2 Channel4 transfer complete flag.
* DMA2_IT_HT4: DMA2 Channel4 half transfer flag.
* DMA2_IT_TE4: DMA2 Channel4 transfer error flag.
* DMA2_IT_GL5: DMA2 Channel5 global flag.
* DMA2_IT_TC5: DMA2 Channel5 transfer complete flag.
* DMA2_IT_HT5: DMA2 Channel5 half transfer flag.
* DMA2_IT_TE5: DMA2 Channel5 transfer error flag.
* DMA2_IT_GL6: DMA2 Channel6 global flag.
* DMA2_IT_TC6: DMA2 Channel6 transfer complete flag.
* DMA2_IT_HT6: DMA2 Channel6 half transfer flag.
* DMA2_IT_TE6: DMA2 Channel6 transfer error flag.
* DMA2_IT_GL7: DMA2 Channel7 global flag.
* DMA2_IT_TC7: DMA2 Channel7 transfer complete flag.
* DMA2_IT_HT7: DMA2 Channel7 half transfer flag.
* DMA2_IT_TE7: DMA2 Channel7 transfer error flag.
* DMA2_IT_GL8: DMA2 Channel8 global flag.
* DMA2_IT_TC8: DMA2 Channel8 transfer complete flag.
* DMA2_IT_HT8: DMA2 Channel8 half transfer flag.
* DMA2_IT_TE8: DMA2 Channel8 transfer error flag.
* DMA2_IT_GL9: DMA2 Channel9 global flag.
* DMA2_IT_TC9: DMA2 Channel9 transfer complete flag.
* DMA2_IT_HT9: DMA2 Channel9 half transfer flag.
* DMA2_IT_TE9: DMA2 Channel9 transfer error flag.
* DMA2_IT_GL11: DMA2 Channel10 global flag.
* DMA2_IT_TC11: DMA2 Channel10 transfer complete flag.
* DMA2_IT_HT11: DMA2 Channel10 half transfer flag.
* DMA2_IT_TE11: DMA2 Channel10 transfer error flag.
* DMA2_IT_GL11: DMA2 Channel11 global flag.
* DMA2_IT_TC11: DMA2 Channel11 transfer complete flag.
* DMA2_IT_HT11: DMA2 Channel11 half transfer flag.
* DMA2_IT_TE11: DMA2 Channel11 transfer error flag.
* Return : None
*********************************************************************************/
void DMA_ClearITPendingBit(uint32_t DMAy_IT)
{
if ((DMAy_IT & FLAG_Mask) == FLAG_Mask)
{
DMA2->INTFCR = DMAy_IT;
}
else if((DMAy_IT & DMA2_EXTEN_FLAG_Mask) == DMA2_EXTEN_FLAG_Mask)
{
DMA2_EXTEN->INTFCR = DMAy_IT;
}
else
{
DMA1->INTFCR = DMAy_IT;
}
}
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