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/*!
* @file apm32f4xx_syscfg.c
*
* @brief This file provides all the SYSCFG firmware functions
*
* @version V1.0.2
*
* @date 2022-06-23
*
* @attention
*
* Copyright (C) 2021-2022 Geehy Semiconductor
*
* You may not use this file except in compliance with the
* GEEHY COPYRIGHT NOTICE (GEEHY SOFTWARE PACKAGE LICENSE).
*
* The program is only for reference, which is distributed in the hope
* that it will be usefull and instructional for customers to develop
* their software. Unless required by applicable law or agreed to in
* writing, the program is distributed on an "AS IS" BASIS, WITHOUT
* ANY WARRANTY OR CONDITIONS OF ANY KIND, either express or implied.
* See the GEEHY SOFTWARE PACKAGE LICENSE for the governing permissions
* and limitations under the License.
*/
#include "apm32f4xx_syscfg.h"
#include "apm32f4xx_rcm.h"
/** @addtogroup APM32F4xx_StdPeriphDriver
@{
*/
/** @defgroup SYSCFG_Driver
* @brief SYSCFG driver modules
@{
*/
/** @defgroup SYSCFG_Functions
@{
*/
/*!
* @brief Reset the remap and EINT configuration registers to their default values.
*
* @param None
*
* @retval None
*/
void SYSCFG_Reset(void)
{
RCM_EnableAPB2PeriphReset(RCM_APB2_PERIPH_SYSCFG);
RCM_DisableAPB2PeriphReset(RCM_APB2_PERIPH_SYSCFG);
}
/*!
* @brief Changes the mapping of the specified pin.
*
* @param memory: selects the memory remapping.
* The parameter can be one of the following values:
* @arg SYSCFG_REMAP_FLASH : Memory mapping to Flash
* @arg SYSCFG_REMAP_SYSTEM_FLASH : Memory mapping to SystemFlash
* @arg SYSCFG_REMAP_SMC_BANK1 : Memory mapping to bank1 of SMC (NOR-flash/PSRAM)
* @arg SYSCFG_REMAP_SRAM : Memory mapping to SRAM
*
* @retval None
*/
void SYSCFG_ConfigMemoryRemap(SYSCFG_REMAP_T memory)
{
SYSCFG->MMSEL_B.MMSEL = memory;
}
/*!
* @brief Config the GPIO pin used as EINT Line.
*
* @param port: select the port
* The parameter can be one of the following values
* @arg SYSCFG_PORT_GPIOA : Port Source GPIOA
* @arg SYSCFG_PORT_GPIOB : Port Source GPIOB
* @arg SYSCFG_PORT_GPIOC : Port Source GPIOC
* @arg SYSCFG_PORT_GPIOD : Port Source GPIOD
* @arg SYSCFG_PORT_GPIOE : Port Source GPIOE
* @arg SYSCFG_PORT_GPIOF : Port Source GPIOF
* @arg SYSCFG_PORT_GPIOG : Port Source GPIOG
* @arg SYSCFG_PORT_GPIOH : Port Source GPIOH
* @arg SYSCFG_PORT_GPIOI : Port Source GPIOI
*
* @param pin: select the pin
* The parameter can be one of the following values
* @arg SYSCFG_PIN_0 : Pin Source 0
* @arg SYSCFG_PIN_1 : Pin Source 1
* @arg SYSCFG_PIN_2 : Pin Source 2
* @arg SYSCFG_PIN_3 : Pin Source 3
* @arg SYSCFG_PIN_4 : Pin Source 4
* @arg SYSCFG_PIN_5 : Pin Source 5
* @arg SYSCFG_PIN_6 : Pin Source 6
* @arg SYSCFG_PIN_7 : Pin Source 7
* @arg SYSCFG_PIN_8 : Pin Source 8
* @arg SYSCFG_PIN_9 : Pin Source 9
* @arg SYSCFG_PIN_10: Pin Source 10
* @arg SYSCFG_PIN_11: Pin Source 11
* @arg SYSCFG_PIN_12: Pin Source 12
* @arg SYSCFG_PIN_13: Pin Source 13
* @arg SYSCFG_PIN_14: Pin Source 14
* @arg SYSCFG_PIN_15: Pin Source 15
*
* @retval None
*
* @note pin from SYSCFG_PIN_12 to SYSCFG_PIN_15 is not fit for
* SYSCFG_PORT_GPIOI of the port.
*/
void SYSCFG_ConfigEINTLine(SYSCFG_PORT_T port, SYSCFG_PIN_T pin)
{
uint32_t status;
status = ((uint32_t)(port & 0x0F)) << (0x04 * (pin & 0x03));
if ((pin >> 2) == 0)
{
SYSCFG->EINTCFG1 |= status;
}
else if ((pin >> 2) == 1)
{
SYSCFG->EINTCFG2 |= status;
}
else if ((pin >> 2) == 2)
{
SYSCFG->EINTCFG3 |= status;
}
else if ((pin >> 2) == 3)
{
SYSCFG->EINTCFG4 |= status;
}
}
/*!
* @brief Selects the ETHERNET media interface
*
* @param media: select the media
* The parameter can be combination of folling values
* @arg SYSCFG_INTERFACE_MII : MII mode selected
* @arg SYSCFG_INTERFACE_RMII : RMII mode selected
*
* @retval None
*/
void SYSCFG_ConfigMediaInterface(SYSCFG_INTERFACE_T media)
{
SYSCFG->PMC_B.ENETSEL = media;
}
/*!
* @brief Enables the I/O Compensation Cell.
*
* @param None
*
* @retval None
*
* @note The I/O compensation cell can be used only when the device supply
* voltage ranges from 2.4 to 3.6 V.
*/
void SYSCFG_EnableCompensationCell(void)
{
SYSCFG->CCCTRL_B.CCPD = BIT_SET;
}
/*!
* @brief Disables the I/O Compensation Cell.
*
* @param None
*
* @retval None
*
* @note The I/O compensation cell can be used only when the device supply
* voltage ranges from 2.4 to 3.6 V.
*/
void SYSCFG_DisableCompensationCell(void)
{
SYSCFG->CCCTRL_B.CCPD = BIT_RESET;
}
/*!
* @brief Read the I/O Compensation Cell ready flag.
*
* @param None
*
* @retval SET or RESET
*/
uint8_t SYSCFG_ReadCompensationCellStatus(void)
{
return (SYSCFG->CCCTRL & BIT8) ? SET : RESET;
}
/**@} end of group SYSCFG_Functions */
/**@} end of group SYSCFG_Driver */
/**@} end of group APM32F4xx_StdPeriphDriver */
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