写在前面，沉下心来看一遍，收获满满。
CSDN上看代码不舒服，建议复制到自己编译器上看。
/**
******************************************************************************
* @file stm32f10x_gpio.c
* @author MCD Application Team //MCD应用团队
* @version V3.5.0
* @date 11-March-2011
* @brief This file provides all the GPIO firmware functions. //简述 该文件提供了所有 GPIO 固件功能。
******************************************************************************
* @attention //注意 意思说这个文件的目的时为了方便用户，如果使用中有了不良后果和开发团队无关。
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> //一个编辑网页语言的版权声明
******************************************************************************
*/
/*
• 一、配置GPIO口
• 1. 使能管脚对应的GPIO组时钟 使能时钟
RCC_APB2PeriphClockCmd( GPIOx, ENABLE);
• 2. 定义一个初始化结构体型的变量
GPIO_InitTypeDef GPIO_InitStructure;
• 3. 对结构体变量的各成员赋值 赋值结构体参数
GPIO_InitStructure.GPIO_Pin =;
GPIO_InitStructure.GPIO_Mode =;
GPIO_InitStructure.GPIO_Speed =;
• 4. 调用初始化函数，初始化GPIO
GPIO_Init(GPIO_Pin_n, &GPIO_InitStructure);
• 二、在主函数中，调用GPIO函数编程。
————————————————
版权声明：本文为CSDN博主「qq_46523260」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/qq_46523260/article/details/106883503
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_gpio.h"
#include "stm32f10x_rcc.h"
/** @addtogroup STM32F10x_StdPeriph_Driver //添加进stm32f10x标准外设驱动
* @{
*/
/** @defgroup GPIO
* @brief GPIO driver modules //GPIO 驱动模块
* @{
*/
/** @defgroup GPIO_Private_TypesDefinitions //个人类型定义
* @{
*/
/**
* @}
*/
/** @defgroup GPIO_Private_Defines
* @{
*/
/* ------------ RCC registers bit address in the alias region ----------------*///RCC寄存器在别名区域中的位地址 时钟
#define AFIO_OFFSET (AFIO_BASE - PERIPH_BASE)
/* --- EVENTCR Register -----*/
/* Alias word address of EVOE bit */ //EVOE 位的别名字地址 EV是事件event的缩写
#define EVCR_OFFSET (AFIO_OFFSET + 0x00)
#define EVOE_BitNumber ((uint8_t)0x07)
#define EVCR_EVOE_BB (PERIPH_BB_BASE + (EVCR_OFFSET * 32) + (EVOE_BitNumber * 4))
/* --- MAPR Register ---*/
/* Alias word address of MII_RMII_SEL bit */ //MII_RMII_SEL 位的别名字地址 具体是什么意思还不明白
#define MAPR_OFFSET (AFIO_OFFSET + 0x04)
#define MII_RMII_SEL_BitNumber ((u8)0x17)
#define MAPR_MII_RMII_SEL_BB (PERIPH_BB_BASE + (MAPR_OFFSET * 32) + (MII_RMII_SEL_BitNumber * 4))
#define EVCR_PORTPINCONFIG_MASK ((uint16_t)0xFF80)
#define LSB_MASK ((uint16_t)0xFFFF)
#define DBGAFR_POSITION_MASK ((uint32_t)0x000F0000)
#define DBGAFR_SWJCFG_MASK ((uint32_t)0xF0FFFFFF)
#define DBGAFR_LOCATION_MASK ((uint32_t)0x00200000)
#define DBGAFR_NUMBITS_MASK ((uint32_t)0x00100000)
/**
* @}
*/
/** @defgroup GPIO_Private_Macros //个人宏
* @{
*/
/**
* @}
*/
/** @defgroup GPIO_Private_Variables //个人变量
* @{
*/
/**
* @}
*/
/** @defgroup GPIO_Private_FunctionPrototypes //个人函数原型
* @{
*/
/**
* @}
*/
/** @defgroup GPIO_Private_Functions
* @{
*/
/** //将GPIOx外设 取消 初始化为默认复位值
* @brief Deinitializes the GPIOx peripheral registers to their default reset values.
* @param GPIOx: where x can be (A..G) to select the GPIO peripheral. //参数 可以从 A 选到 G
* @retval None
*/
void GPIO_DeInit(GPIO_TypeDef* GPIOx)
{
/* Check the parameters */ //检查参数
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
if (GPIOx == GPIOA)
{
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOA, ENABLE);
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOA, DISABLE);
}
else if (GPIOx == GPIOB)
{
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOB, ENABLE);
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOB, DISABLE);
}
else if (GPIOx == GPIOC)
{
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOC, ENABLE);
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOC, DISABLE);
}
else if (GPIOx == GPIOD)
{
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOD, ENABLE);
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOD, DISABLE);
}
else if (GPIOx == GPIOE)
{
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOE, ENABLE);
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOE, DISABLE);
}
else if (GPIOx == GPIOF)
{
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOF, ENABLE);
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOF, DISABLE);
}
else
{
if (GPIOx == GPIOG)
{
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOG, ENABLE);
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOG, DISABLE);
}
}
}
/** //取消 初始化备用函数（重映射 事件控制 exti配置）寄存器到它们的默认复位值
* @brief Deinitializes the Alternate Functions (remap, event control
* and EXTI configuration) registers to their default reset values.
* @param None
* @retval None
*/
void GPIO_AFIODeInit(void)
{
RCC_APB2PeriphResetCmd(RCC_APB2Periph_AFIO, ENABLE);
RCC_APB2PeriphResetCmd(RCC_APB2Periph_AFIO, DISABLE);
}
/** //初始化
* @brief Initializes the GPIOx peripheral according to the specified
* parameters in the GPIO_InitStruct.
* @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
* @param GPIO_InitStruct: pointer to a GPIO_InitTypeDef structure that
* contains the configuration information for the specified GPIO peripheral.
* @retval None
*/
void GPIO_Init(GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitStruct)
{
uint32_t currentmode = 0x00, currentpin = 0x00, pinpos = 0x00, pos = 0x00;
uint32_t tmpreg = 0x00, pinmask = 0x00;
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
assert_param(IS_GPIO_MODE(GPIO_InitStruct->GPIO_Mode));
assert_param(IS_GPIO_PIN(GPIO_InitStruct->GPIO_Pin));
/*---------------------------- GPIO Mode Configuration -----------------------*/
currentmode = ((uint32_t)GPIO_InitStruct->GPIO_Mode) & ((uint32_t)0x0F);
if ((((uint32_t)GPIO_InitStruct->GPIO_Mode) & ((uint32_t)0x10)) != 0x00)
{
/* Check the parameters */
assert_param(IS_GPIO_SPEED(GPIO_InitStruct->GPIO_Speed));
/* Output mode */
currentmode |= (uint32_t)GPIO_InitStruct->GPIO_Speed;
}
/*---------------------------- GPIO CRL Configuration ------------------------*/
/* Configure the eight low port pins */
if (((uint32_t)GPIO_InitStruct->GPIO_Pin & ((uint32_t)0x00FF)) != 0x00)
{
tmpreg = GPIOx->CRL;
for (pinpos = 0x00; pinpos < 0x08; pinpos++)
{
pos = ((uint32_t)0x01) << pinpos;
/* Get the port pins position */
currentpin = (GPIO_InitStruct->GPIO_Pin) & pos;
if (currentpin == pos)
{
pos = pinpos << 2;
/* Clear the corresponding low control register bits */
pinmask = ((uint32_t)0x0F) << pos;
tmpreg &= ~pinmask;
/* Write the mode configuration in the corresponding bits */
tmpreg |= (currentmode << pos);
/* Reset the corresponding ODR bit */
if (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPD)
{
GPIOx->BRR = (((uint32_t)0x01) << pinpos);
}
else
{
/* Set the corresponding ODR bit */
if (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPU)
{
GPIOx->BSRR = (((uint32_t)0x01) << pinpos);
}
}
}
}
GPIOx->CRL = tmpreg;
}
/*---------------------------- GPIO CRH Configuration ------------------------*/
/* Configure the eight high port pins */
if (GPIO_InitStruct->GPIO_Pin > 0x00FF)
{
tmpreg = GPIOx->CRH;
for (pinpos = 0x00; pinpos < 0x08; pinpos++)
{
pos = (((uint32_t)0x01) << (pinpos + 0x08));
/* Get the port pins position */
currentpin = ((GPIO_InitStruct->GPIO_Pin) & pos);
if (currentpin == pos)
{
pos = pinpos << 2;
/* Clear the corresponding high control register bits */
pinmask = ((uint32_t)0x0F) << pos;
tmpreg &= ~pinmask;
/* Write the mode configuration in the corresponding bits */
tmpreg |= (currentmode << pos);
/* Reset the corresponding ODR bit */
if (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPD)
{
GPIOx->BRR = (((uint32_t)0x01) << (pinpos + 0x08));
}
/* Set the corresponding ODR bit */
if (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPU)
{
GPIOx->BSRR = (((uint32_t)0x01) << (pinpos + 0x08));
}
}
}
GPIOx->CRH = tmpreg;
}
}
/** //用默认值填充每个 GPIO_InitStruct 元素。
* @brief Fills each GPIO_InitStruct member with its default value. //结构 初始化
* @param GPIO_InitStruct : pointer to a GPIO_InitTypeDef structure which will//这个标准库文件非常善用宏
* be initialized.
* @retval None
*/
void GPIO_StructInit(GPIO_InitTypeDef* GPIO_InitStruct)
{
/* Reset GPIO init structure parameters values */
GPIO_InitStruct->GPIO_Pin = GPIO_Pin_All;
GPIO_InitStruct->GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStruct->GPIO_Mode = GPIO_Mode_IN_FLOATING;
}
/**
* @brief Reads the specified input port pin. //读取指定的端口输入引脚
* @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
* @param GPIO_Pin: specifies the port bit to read. //指定要读取的端口位
* This parameter can be GPIO_Pin_x where x can be (0..15).
* @retval The input port pin value. //输入端口引脚值
*/
uint8_t GPIO_ReadInputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
{
uint8_t bitstatus = 0x00;
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
if ((GPIOx->IDR & GPIO_Pin) != (uint32_t)Bit_RESET)
{
bitstatus = (uint8_t)Bit_SET;
}
else
{
bitstatus = (uint8_t)Bit_RESET;
}
return bitstatus;
}
/**
* @brief Reads the specified GPIO input data port. //读取指定的 GPIO 输入数据端口。
* @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
* @retval GPIO input data port value. //GPIO 输入数据端口值。
*/
uint16_t GPIO_ReadInputData(GPIO_TypeDef* GPIOx)
{
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
return ((uint16_t)GPIOx->IDR);
}
/**
* @brief Reads the specified output data port bit.
* @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
* @param GPIO_Pin: specifies the port bit to read.
* This parameter can be GPIO_Pin_x where x can be (0..15).
* @retval The output port pin value.
*/
uint8_t GPIO_ReadOutputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
{
uint8_t bitstatus = 0x00;
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
if ((GPIOx->ODR & GPIO_Pin) != (uint32_t)Bit_RESET)
{
bitstatus = (uint8_t)Bit_SET;
}
else
{
bitstatus = (uint8_t)Bit_RESET;
}
return bitstatus;
}
/**
* @brief Reads the specified GPIO output data port.
* @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
* @retval GPIO output data port value.
*/
uint16_t GPIO_ReadOutputData(GPIO_TypeDef* GPIOx)
{
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
return ((uint16_t)GPIOx->ODR);
}
/**
* @brief Sets the selected data port bits. //设置选定的数据端口位
* @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
* @param GPIO_Pin: specifies the port bits to be written. //指定要写入的端口位
* This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
* @retval None
*/
void GPIO_SetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
{
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
assert_param(IS_GPIO_PIN(GPIO_Pin));
GPIOx->BSRR = GPIO_Pin;
}
/**
* @brief Clears the selected data port bits.
* @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
* @param GPIO_Pin: specifies the port bits to be written.
* This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
* @retval None
*/
void GPIO_ResetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
{
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
assert_param(IS_GPIO_PIN(GPIO_Pin));
GPIOx->BRR = GPIO_Pin;
}
/**
* @brief Sets or clears the selected data port bit. //设置或清除选定的数据端口位
* @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
* @param GPIO_Pin: specifies the port bit to be written.
* This parameter can be one of GPIO_Pin_x where x can be (0..15).
* @param BitVal: specifies the value to be written to the selected bit. //指定要写入所选位的值
* This parameter can be one of the BitAction enum values: //此参数可以是 BitAction 枚举值之一：
* @arg Bit_RESET: to clear the port pin
* @arg Bit_SET: to set the port pin
* @retval None
*/
void GPIO_WriteBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, BitAction BitVal)
{
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
assert_param(IS_GPIO_BIT_ACTION(BitVal));
if (BitVal != Bit_RESET)
{
GPIOx->BSRR = GPIO_Pin;
}
else
{
GPIOx->BRR = GPIO_Pin;
}
}
/**
* @brief Writes data to the specified GPIO data port. //将数据写入指定的 GPIO 数据端口
* @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
* @param PortVal: specifies the value to be written to the port output data register.
* @retval None
*/
void GPIO_Write(GPIO_TypeDef* GPIOx, uint16_t PortVal)
{
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
GPIOx->ODR = PortVal;
}
/**
* @brief Locks GPIO Pins configuration registers.
* @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
* @param GPIO_Pin: specifies the port bit to be written.
* This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
* @retval None
*/
void GPIO_PinLockConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
{
uint32_t tmp = 0x00010000;
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
assert_param(IS_GPIO_PIN(GPIO_Pin));
tmp |= GPIO_Pin;
/* Set LCKK bit */
GPIOx->LCKR = tmp;
/* Reset LCKK bit */
GPIOx->LCKR = GPIO_Pin;
/* Set LCKK bit */
GPIOx->LCKR = tmp;
/* Read LCKK bit*/
tmp = GPIOx->LCKR;
/* Read LCKK bit*/
tmp = GPIOx->LCKR;
}
/**
* @brief Selects the GPIO pin used as Event output.
* @param GPIO_PortSource: selects the GPIO port to be used as source
* for Event output.
* This parameter can be GPIO_PortSourceGPIOx where x can be (A..E).
* @param GPIO_PinSource: specifies the pin for the Event output.
* This parameter can be GPIO_PinSourcex where x can be (0..15).
* @retval None
*/
void GPIO_EventOutputConfig(uint8_t GPIO_PortSource, uint8_t GPIO_PinSource)
{
uint32_t tmpreg = 0x00;
/* Check the parameters */
assert_param(IS_GPIO_EVENTOUT_PORT_SOURCE(GPIO_PortSource));
assert_param(IS_GPIO_PIN_SOURCE(GPIO_PinSource));
tmpreg = AFIO->EVCR;
/* Clear the PORT[6:4] and PIN[3:0] bits */
tmpreg &= EVCR_PORTPINCONFIG_MASK;
tmpreg |= (uint32_t)GPIO_PortSource << 0x04;
tmpreg |= GPIO_PinSource;
AFIO->EVCR = tmpreg;
}
/**
* @brief Enables or disables the Event Output. //启用或禁用事件输出
* @param NewState: new state of the Event output.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void GPIO_EventOutputCmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
*(__IO uint32_t *) EVCR_EVOE_BB = (uint32_t)NewState;
}
/**
* @brief Changes the mapping of the specified pin.
* @param GPIO_Remap: selects the pin to remap.
* This parameter can be one of the following values:
* @arg GPIO_Remap_SPI1 : SPI1 Alternate Function mapping
* @arg GPIO_Remap_I2C1 : I2C1 Alternate Function mapping
* @arg GPIO_Remap_USART1 : USART1 Alternate Function mapping
* @arg GPIO_Remap_USART2 : USART2 Alternate Function mapping
* @arg GPIO_PartialRemap_USART3 : USART3 Partial Alternate Function mapping
* @arg GPIO_FullRemap_USART3 : USART3 Full Alternate Function mapping
* @arg GPIO_PartialRemap_TIM1 : TIM1 Partial Alternate Function mapping
* @arg GPIO_FullRemap_TIM1 : TIM1 Full Alternate Function mapping
* @arg GPIO_PartialRemap1_TIM2 : TIM2 Partial1 Alternate Function mapping
* @arg GPIO_PartialRemap2_TIM2 : TIM2 Partial2 Alternate Function mapping
* @arg GPIO_FullRemap_TIM2 : TIM2 Full Alternate Function mapping
* @arg GPIO_PartialRemap_TIM3 : TIM3 Partial Alternate Function mapping
* @arg GPIO_FullRemap_TIM3 : TIM3 Full Alternate Function mapping
* @arg GPIO_Remap_TIM4 : TIM4 Alternate Function mapping
* @arg GPIO_Remap1_CAN1 : CAN1 Alternate Function mapping
* @arg GPIO_Remap2_CAN1 : CAN1 Alternate Function mapping
* @arg GPIO_Remap_PD01 : PD01 Alternate Function mapping
* @arg GPIO_Remap_TIM5CH4_LSI : LSI connected to TIM5 Channel4 input capture for calibration
* @arg GPIO_Remap_ADC1_ETRGINJ : ADC1 External Trigger Injected Conversion remapping
* @arg GPIO_Remap_ADC1_ETRGREG : ADC1 External Trigger Regular Conversion remapping
* @arg GPIO_Remap_ADC2_ETRGINJ : ADC2 External Trigger Injected Conversion remapping
* @arg GPIO_Remap_ADC2_ETRGREG : ADC2 External Trigger Regular Conversion remapping
* @arg GPIO_Remap_ETH : Ethernet remapping (only for Connectivity line devices)
* @arg GPIO_Remap_CAN2 : CAN2 remapping (only for Connectivity line devices)
* @arg GPIO_Remap_SWJ_NoJTRST : Full SWJ Enabled (JTAG-DP + SW-DP) but without JTRST
* @arg GPIO_Remap_SWJ_JTAGDisable : JTAG-DP Disabled and SW-DP Enabled
* @arg GPIO_Remap_SWJ_Disable : Full SWJ Disabled (JTAG-DP + SW-DP)
* @arg GPIO_Remap_SPI3 : SPI3/I2S3 Alternate Function mapping (only for Connectivity line devices)
* When the SPI3/I2S3 is remapped using this function, the SWJ is configured
* to Full SWJ Enabled (JTAG-DP + SW-DP) but without JTRST.
* @arg GPIO_Remap_TIM2ITR1_PTP_SOF : Ethernet PTP output or USB OTG SOF (Start of Frame) connected
* to TIM2 Internal Trigger 1 for calibration (only for Connectivity line devices)
* If the GPIO_Remap_TIM2ITR1_PTP_SOF is enabled the TIM2 ITR1 is connected to
* Ethernet PTP output. When Reset TIM2 ITR1 is connected to USB OTG SOF output.
* @arg GPIO_Remap_PTP_PPS : Ethernet MAC PPS_PTS output on PB05 (only for Connectivity line devices)
* @arg GPIO_Remap_TIM15 : TIM15 Alternate Function mapping (only for Value line devices)
* @arg GPIO_Remap_TIM16 : TIM16 Alternate Function mapping (only for Value line devices)
* @arg GPIO_Remap_TIM17 : TIM17 Alternate Function mapping (only for Value line devices)
* @arg GPIO_Remap_CEC : CEC Alternate Function mapping (only for Value line devices)
* @arg GPIO_Remap_TIM1_DMA : TIM1 DMA requests mapping (only for Value line devices)
* @arg GPIO_Remap_TIM9 : TIM9 Alternate Function mapping (only for XL-density devices)
* @arg GPIO_Remap_TIM10 : TIM10 Alternate Function mapping (only for XL-density devices)
* @arg GPIO_Remap_TIM11 : TIM11 Alternate Function mapping (only for XL-density devices)
* @arg GPIO_Remap_TIM13 : TIM13 Alternate Function mapping (only for High density Value line and XL-density devices)
* @arg GPIO_Remap_TIM14 : TIM14 Alternate Function mapping (only for High density Value line and XL-density devices)
* @arg GPIO_Remap_FSMC_NADV : FSMC_NADV Alternate Function mapping (only for High density Value line and XL-density devices)
* @arg GPIO_Remap_TIM67_DAC_DMA : TIM6/TIM7 and DAC DMA requests remapping (only for High density Value line devices)
* @arg GPIO_Remap_TIM12 : TIM12 Alternate Function mapping (only for High density Value line devices)
* @arg GPIO_Remap_MISC : Miscellaneous Remap (DMA2 Channel5 Position and DAC Trigger remapping,
* only for High density Value line devices)
* @param NewState: new state of the port pin remapping.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void GPIO_PinRemapConfig(uint32_t GPIO_Remap, FunctionalState NewState)
{
uint32_t tmp = 0x00, tmp1 = 0x00, tmpreg = 0x00, tmpmask = 0x00;
/* Check the parameters */
assert_param(IS_GPIO_REMAP(GPIO_Remap));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if((GPIO_Remap & 0x80000000) == 0x80000000)
{
tmpreg = AFIO->MAPR2;
}
else
{
tmpreg = AFIO->MAPR;
}
tmpmask = (GPIO_Remap & DBGAFR_POSITION_MASK) >> 0x10;
tmp = GPIO_Remap & LSB_MASK;
if ((GPIO_Remap & (DBGAFR_LOCATION_MASK | DBGAFR_NUMBITS_MASK)) == (DBGAFR_LOCATION_MASK | DBGAFR_NUMBITS_MASK))
{
tmpreg &= DBGAFR_SWJCFG_MASK;
AFIO->MAPR &= DBGAFR_SWJCFG_MASK;
}
else if ((GPIO_Remap & DBGAFR_NUMBITS_MASK) == DBGAFR_NUMBITS_MASK)
{
tmp1 = ((uint32_t)0x03) << tmpmask;
tmpreg &= ~tmp1;
tmpreg |= ~DBGAFR_SWJCFG_MASK;
}
else
{
tmpreg &= ~(tmp << ((GPIO_Remap >> 0x15)*0x10));
tmpreg |= ~DBGAFR_SWJCFG_MASK;
}
if (NewState != DISABLE)
{
tmpreg |= (tmp << ((GPIO_Remap >> 0x15)*0x10));
}
if((GPIO_Remap & 0x80000000) == 0x80000000)
{
AFIO->MAPR2 = tmpreg;
}
else
{
AFIO->MAPR = tmpreg;
}
}
/**
* @brief Selects the GPIO pin used as EXTI Line.
* @param GPIO_PortSource: selects the GPIO port to be used as source for EXTI lines.
* This parameter can be GPIO_PortSourceGPIOx where x can be (A..G).
* @param GPIO_PinSource: specifies the EXTI line to be configured.
* This parameter can be GPIO_PinSourcex where x can be (0..15).
* @retval None
*/
void GPIO_EXTILineConfig(uint8_t GPIO_PortSource, uint8_t GPIO_PinSource)
{
uint32_t tmp = 0x00;
/* Check the parameters */
assert_param(IS_GPIO_EXTI_PORT_SOURCE(GPIO_PortSource));
assert_param(IS_GPIO_PIN_SOURCE(GPIO_PinSource));
tmp = ((uint32_t)0x0F) << (0x04 * (GPIO_PinSource & (uint8_t)0x03));
AFIO->EXTICR[GPIO_PinSource >> 0x02] &= ~tmp;
AFIO->EXTICR[GPIO_PinSource >> 0x02] |= (((uint32_t)GPIO_PortSource) << (0x04 * (GPIO_PinSource & (uint8_t)0x03)));
}
/**
* @brief Selects the Ethernet media interface. //选择以太网媒体接口
* @note This function applies only to STM32 Connectivity line devices. //此功能仅适用于 STM32 Connectivity line 设备
* @param GPIO_ETH_MediaInterface: specifies the Media Interface mode.
* This parameter can be one of the following values:
* @arg GPIO_ETH_MediaInterface_MII: MII mode
* @arg GPIO_ETH_MediaInterface_RMII: RMII mode
* @retval None
*/
void GPIO_ETH_MediaInterfaceConfig(uint32_t GPIO_ETH_MediaInterface)
{
assert_param(IS_GPIO_ETH_MEDIA_INTERFACE(GPIO_ETH_MediaInterface));
/* Configure MII_RMII selection bit */
*(__IO uint32_t *) MAPR_MII_RMII_SEL_BB = GPIO_ETH_MediaInterface;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****///版权所有意法半导体
/**
******************************************************************************
* @file stm32f10x_gpio.h
* @author MCD Application Team
* @version V3.5.0
* @date 11-March-2011
* @brief This file contains all the functions prototypes for the GPIO
* firmware library.
******************************************************************************
* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
******************************************************************************
*/
//以上同gpio.c文件
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F10x_GPIO_H
#define __STM32F10x_GPIO_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
/** @addtogroup STM32F10x_StdPeriph_Driver
* @{
*/
/** @addtogroup GPIO
* @{
*/
/** @defgroup GPIO_Exported_Types //导出类型
* @{
*/
#define IS_GPIO_ALL_PERIPH(PERIPH) (((PERIPH) == GPIOA) || \
((PERIPH) == GPIOB) || \
((PERIPH) == GPIOC) || \
((PERIPH) == GPIOD) || \
((PERIPH) == GPIOE) || \
((PERIPH) == GPIOF) || \
((PERIPH) == GPIOG))
/**
* @brief Output Maximum frequency selection //输出最大频率选择 GPIO口的驱动电路响应速度，不是输出信号的速度
*/ //输出信号的速度与程序有关，通过选择速度来选择不同的驱动电路，降低功耗控制噪声
//GPIO的引脚速度跟应用相匹配，速度配置越高，噪声越大，功耗越大
typedef enum //电路不失真的通过信号的最大频率
{ //如果信号频率为10MHz,通道只设置了2MHz，信号就会失真，原来的方波就可能是正弦波
GPIO_Speed_10MHz = 1,
GPIO_Speed_2MHz,
GPIO_Speed_50MHz
}GPIOSpeed_TypeDef;
#define IS_GPIO_SPEED(SPEED) (((SPEED) == GPIO_Speed_10MHz) || ((SPEED) == GPIO_Speed_2MHz) || \
((SPEED) == GPIO_Speed_50MHz))
/**
* @brief Configuration Mode enumeration //配置 模式 枚举
*/
typedef enum
{ GPIO_Mode_AIN = 0x0, //模拟输入 传统方式的输入
GPIO_Mode_IN_FLOATING = 0x04, //浮空输入 即不接高电平，也不接低电平，浮空输入一般多用于外部按键、ADC输入用，这样可以减少上下拉电阻对结果的影响。
GPIO_Mode_IPD = 0x28, //下拉输入
GPIO_Mode_IPU = 0x48, //上拉输入 上拉就是将不确定的信号通过一个电阻嵌位在高电平
GPIO_Mode_Out_OD = 0x14, //开漏输出 输出端相当于三极管的集电极，要得到高电平状态需要上拉电阻才行，适合于做电流型的驱动，其吸收电流的能力相对强
GPIO_Mode_Out_PP = 0x10, //推挽输出 可以输出高、低电平，连接数字器件
GPIO_Mode_AF_OD = 0x1C, //开漏复用功能
GPIO_Mode_AF_PP = 0x18 //推挽复用功能
}GPIOMode_TypeDef;
#define IS_GPIO_MODE(MODE) (((MODE) == GPIO_Mode_AIN) || ((MODE) == GPIO_Mode_IN_FLOATING) || \
((MODE) == GPIO_Mode_IPD) || ((MODE) == GPIO_Mode_IPU) || \
((MODE) == GPIO_Mode_Out_OD) || ((MODE) == GPIO_Mode_Out_PP) || \
((MODE) == GPIO_Mode_AF_OD) || ((MODE) == GPIO_Mode_AF_PP))
/**
* @brief GPIO Init structure definition //结构体定义
*/
typedef struct
{
uint16_t GPIO_Pin; /*!< Specifies the GPIO pins to be configured.
This parameter can be any value of @ref GPIO_pins_define */
GPIOSpeed_TypeDef GPIO_Speed; /*!< Specifies the speed for the selected pins.
This parameter can be a value of @ref GPIOSpeed_TypeDef */
GPIOMode_TypeDef GPIO_Mode; /*!< Specifies the operating mode for the selected pins.
This parameter can be a value of @ref GPIOMode_TypeDef */
}GPIO_InitTypeDef;
/**
* @brief Bit_SET and Bit_RESET enumeration
*/
typedef enum
{ Bit_RESET = 0,
Bit_SET
}BitAction;
#define IS_GPIO_BIT_ACTION(ACTION) (((ACTION) == Bit_RESET) || ((ACTION) == Bit_SET))
/**
* @}
*/
/** @defgroup GPIO_Exported_Constants //导出常数
* @{
*/
/** @defgroup GPIO_pins_define
* @{
*/
#define GPIO_Pin_0 ((uint16_t)0x0001) /*!< Pin 0 selected */
#define GPIO_Pin_1 ((uint16_t)0x0002) /*!< Pin 1 selected */
#define GPIO_Pin_2 ((uint16_t)0x0004) /*!< Pin 2 selected */
#define GPIO_Pin_3 ((uint16_t)0x0008) /*!< Pin 3 selected */
#define GPIO_Pin_4 ((uint16_t)0x0010) /*!< Pin 4 selected */
#define GPIO_Pin_5 ((uint16_t)0x0020) /*!< Pin 5 selected */
#define GPIO_Pin_6 ((uint16_t)0x0040) /*!< Pin 6 selected */
#define GPIO_Pin_7 ((uint16_t)0x0080) /*!< Pin 7 selected */
#define GPIO_Pin_8 ((uint16_t)0x0100) /*!< Pin 8 selected */
#define GPIO_Pin_9 ((uint16_t)0x0200) /*!< Pin 9 selected */
#define GPIO_Pin_10 ((uint16_t)0x0400) /*!< Pin 10 selected */
#define GPIO_Pin_11 ((uint16_t)0x0800) /*!< Pin 11 selected */
#define GPIO_Pin_12 ((uint16_t)0x1000) /*!< Pin 12 selected */
#define GPIO_Pin_13 ((uint16_t)0x2000) /*!< Pin 13 selected */
#define GPIO_Pin_14 ((uint16_t)0x4000) /*!< Pin 14 selected */
#define GPIO_Pin_15 ((uint16_t)0x8000) /*!< Pin 15 selected */
#define GPIO_Pin_All ((uint16_t)0xFFFF) /*!< All pins selected */
#define IS_GPIO_PIN(PIN) ((((PIN) & (uint16_t)0x00) == 0x00) && ((PIN) != (uint16_t)0x00))
#define IS_GET_GPIO_PIN(PIN) (((PIN) == GPIO_Pin_0) || \
((PIN) == GPIO_Pin_1) || \
((PIN) == GPIO_Pin_2) || \
((PIN) == GPIO_Pin_3) || \
((PIN) == GPIO_Pin_4) || \
((PIN) == GPIO_Pin_5) || \
((PIN) == GPIO_Pin_6) || \
((PIN) == GPIO_Pin_7) || \
((PIN) == GPIO_Pin_8) || \
((PIN) == GPIO_Pin_9) || \
((PIN) == GPIO_Pin_10) || \
((PIN) == GPIO_Pin_11) || \
((PIN) == GPIO_Pin_12) || \
((PIN) == GPIO_Pin_13) || \
((PIN) == GPIO_Pin_14) || \
((PIN) == GPIO_Pin_15))
/**
* @}
*/
/** @defgroup GPIO_Remap_define
* @{
*/
#define GPIO_Remap_SPI1 ((uint32_t)0x00000001) /*!< SPI1 Alternate Function mapping */
#define GPIO_Remap_I2C1 ((uint32_t)0x00000002) /*!< I2C1 Alternate Function mapping */
#define GPIO_Remap_USART1 ((uint32_t)0x00000004) /*!< USART1 Alternate Function mapping */
#define GPIO_Remap_USART2 ((uint32_t)0x00000008) /*!< USART2 Alternate Function mapping */
#define GPIO_PartialRemap_USART3 ((uint32_t)0x00140010) /*!< USART3 Partial Alternate Function mapping */
#define GPIO_FullRemap_USART3 ((uint32_t)0x00140030) /*!< USART3 Full Alternate Function mapping */
#define GPIO_PartialRemap_TIM1 ((uint32_t)0x00160040) /*!< TIM1 Partial Alternate Function mapping */
#define GPIO_FullRemap_TIM1 ((uint32_t)0x001600C0) /*!< TIM1 Full Alternate Function mapping */
#define GPIO_PartialRemap1_TIM2 ((uint32_t)0x00180100) /*!< TIM2 Partial1 Alternate Function mapping */
#define GPIO_PartialRemap2_TIM2 ((uint32_t)0x00180200) /*!< TIM2 Partial2 Alternate Function mapping */
#define GPIO_FullRemap_TIM2 ((uint32_t)0x00180300) /*!< TIM2 Full Alternate Function mapping */
#define GPIO_PartialRemap_TIM3 ((uint32_t)0x001A0800) /*!< TIM3 Partial Alternate Function mapping */
#define GPIO_FullRemap_TIM3 ((uint32_t)0x001A0C00) /*!< TIM3 Full Alternate Function mapping */
#define GPIO_Remap_TIM4 ((uint32_t)0x00001000) /*!< TIM4 Alternate Function mapping */
#define GPIO_Remap1_CAN1 ((uint32_t)0x001D4000) /*!< CAN1 Alternate Function mapping */
#define GPIO_Remap2_CAN1 ((uint32_t)0x001D6000) /*!< CAN1 Alternate Function mapping */
#define GPIO_Remap_PD01 ((uint32_t)0x00008000) /*!< PD01 Alternate Function mapping */
#define GPIO_Remap_TIM5CH4_LSI ((uint32_t)0x00200001) /*!< LSI connected to TIM5 Channel4 input capture for calibration */
#define GPIO_Remap_ADC1_ETRGINJ ((uint32_t)0x00200002) /*!< ADC1 External Trigger Injected Conversion remapping */
#define GPIO_Remap_ADC1_ETRGREG ((uint32_t)0x00200004) /*!< ADC1 External Trigger Regular Conversion remapping */
#define GPIO_Remap_ADC2_ETRGINJ ((uint32_t)0x00200008) /*!< ADC2 External Trigger Injected Conversion remapping */
#define GPIO_Remap_ADC2_ETRGREG ((uint32_t)0x00200010) /*!< ADC2 External Trigger Regular Conversion remapping */
#define GPIO_Remap_ETH ((uint32_t)0x00200020) /*!< Ethernet remapping (only for Connectivity line devices) */
#define GPIO_Remap_CAN2 ((uint32_t)0x00200040) /*!< CAN2 remapping (only for Connectivity line devices) */
#define GPIO_Remap_SWJ_NoJTRST ((uint32_t)0x00300100) /*!< Full SWJ Enabled (JTAG-DP + SW-DP) but without JTRST */
#define GPIO_Remap_SWJ_JTAGDisable ((uint32_t)0x00300200) /*!< JTAG-DP Disabled and SW-DP Enabled */
#define GPIO_Remap_SWJ_Disable ((uint32_t)0x00300400) /*!< Full SWJ Disabled (JTAG-DP + SW-DP) */
#define GPIO_Remap_SPI3 ((uint32_t)0x00201100) /*!< SPI3/I2S3 Alternate Function mapping (only for Connectivity line devices) */
#define GPIO_Remap_TIM2ITR1_PTP_SOF ((uint32_t)0x00202000) /*!< Ethernet PTP output or USB OTG SOF (Start of Frame) connected
to TIM2 Internal Trigger 1 for calibration
(only for Connectivity line devices) */
#define GPIO_Remap_PTP_PPS ((uint32_t)0x00204000) /*!< Ethernet MAC PPS_PTS output on PB05 (only for Connectivity line devices) */
#define GPIO_Remap_TIM15 ((uint32_t)0x80000001) /*!< TIM15 Alternate Function mapping (only for Value line devices) */
#define GPIO_Remap_TIM16 ((uint32_t)0x80000002) /*!< TIM16 Alternate Function mapping (only for Value line devices) */
#define GPIO_Remap_TIM17 ((uint32_t)0x80000004) /*!< TIM17 Alternate Function mapping (only for Value line devices) */
#define GPIO_Remap_CEC ((uint32_t)0x80000008) /*!< CEC Alternate Function mapping (only for Value line devices) */
#define GPIO_Remap_TIM1_DMA ((uint32_t)0x80000010) /*!< TIM1 DMA requests mapping (only for Value line devices) */
#define GPIO_Remap_TIM9 ((uint32_t)0x80000020) /*!< TIM9 Alternate Function mapping (only for XL-density devices) */
#define GPIO_Remap_TIM10 ((uint32_t)0x80000040) /*!< TIM10 Alternate Function mapping (only for XL-density devices) */
#define GPIO_Remap_TIM11 ((uint32_t)0x80000080) /*!< TIM11 Alternate Function mapping (only for XL-density devices) */
#define GPIO_Remap_TIM13 ((uint32_t)0x80000100) /*!< TIM13 Alternate Function mapping (only for High density Value line and XL-density devices) */
#define GPIO_Remap_TIM14 ((uint32_t)0x80000200) /*!< TIM14 Alternate Function mapping (only for High density Value line and XL-density devices) */
#define GPIO_Remap_FSMC_NADV ((uint32_t)0x80000400) /*!< FSMC_NADV Alternate Function mapping (only for High density Value line and XL-density devices) */
#define GPIO_Remap_TIM67_DAC_DMA ((uint32_t)0x80000800) /*!< TIM6/TIM7 and DAC DMA requests remapping (only for High density Value line devices) */
#define GPIO_Remap_TIM12 ((uint32_t)0x80001000) /*!< TIM12 Alternate Function mapping (only for High density Value line devices) */
#define GPIO_Remap_MISC ((uint32_t)0x80002000) /*!< Miscellaneous Remap (DMA2 Channel5 Position and DAC Trigger remapping,
only for High density Value line devices) */
#define IS_GPIO_REMAP(REMAP) (((REMAP) == GPIO_Remap_SPI1) || ((REMAP) == GPIO_Remap_I2C1) || \
((REMAP) == GPIO_Remap_USART1) || ((REMAP) == GPIO_Remap_USART2) || \
((REMAP) == GPIO_PartialRemap_USART3) || ((REMAP) == GPIO_FullRemap_USART3) || \
((REMAP) == GPIO_PartialRemap_TIM1) || ((REMAP) == GPIO_FullRemap_TIM1) || \
((REMAP) == GPIO_PartialRemap1_TIM2) || ((REMAP) == GPIO_PartialRemap2_TIM2) || \
((REMAP) == GPIO_FullRemap_TIM2) || ((REMAP) == GPIO_PartialRemap_TIM3) || \
((REMAP) == GPIO_FullRemap_TIM3) || ((REMAP) == GPIO_Remap_TIM4) || \
((REMAP) == GPIO_Remap1_CAN1) || ((REMAP) == GPIO_Remap2_CAN1) || \
((REMAP) == GPIO_Remap_PD01) || ((REMAP) == GPIO_Remap_TIM5CH4_LSI) || \
((REMAP) == GPIO_Remap_ADC1_ETRGINJ) ||((REMAP) == GPIO_Remap_ADC1_ETRGREG) || \
((REMAP) == GPIO_Remap_ADC2_ETRGINJ) ||((REMAP) == GPIO_Remap_ADC2_ETRGREG) || \
((REMAP) == GPIO_Remap_ETH) ||((REMAP) == GPIO_Remap_CAN2) || \
((REMAP) == GPIO_Remap_SWJ_NoJTRST) || ((REMAP) == GPIO_Remap_SWJ_JTAGDisable) || \
((REMAP) == GPIO_Remap_SWJ_Disable)|| ((REMAP) == GPIO_Remap_SPI3) || \
((REMAP) == GPIO_Remap_TIM2ITR1_PTP_SOF) || ((REMAP) == GPIO_Remap_PTP_PPS) || \
((REMAP) == GPIO_Remap_TIM15) || ((REMAP) == GPIO_Remap_TIM16) || \
((REMAP) == GPIO_Remap_TIM17) || ((REMAP) == GPIO_Remap_CEC) || \
((REMAP) == GPIO_Remap_TIM1_DMA) || ((REMAP) == GPIO_Remap_TIM9) || \
((REMAP) == GPIO_Remap_TIM10) || ((REMAP) == GPIO_Remap_TIM11) || \
((REMAP) == GPIO_Remap_TIM13) || ((REMAP) == GPIO_Remap_TIM14) || \
((REMAP) == GPIO_Remap_FSMC_NADV) || ((REMAP) == GPIO_Remap_TIM67_DAC_DMA) || \
((REMAP) == GPIO_Remap_TIM12) || ((REMAP) == GPIO_Remap_MISC))
/**
* @}
*/
/** @defgroup GPIO_Port_Sources //端口来源
* @{
*/
#define GPIO_PortSourceGPIOA ((uint8_t)0x00)
#define GPIO_PortSourceGPIOB ((uint8_t)0x01)
#define GPIO_PortSourceGPIOC ((uint8_t)0x02)
#define GPIO_PortSourceGPIOD ((uint8_t)0x03)
#define GPIO_PortSourceGPIOE ((uint8_t)0x04)
#define GPIO_PortSourceGPIOF ((uint8_t)0x05)
#define GPIO_PortSourceGPIOG ((uint8_t)0x06)
#define IS_GPIO_EVENTOUT_PORT_SOURCE(PORTSOURCE) (((PORTSOURCE) == GPIO_PortSourceGPIOA) || \
((PORTSOURCE) == GPIO_PortSourceGPIOB) || \
((PORTSOURCE) == GPIO_PortSourceGPIOC) || \
((PORTSOURCE) == GPIO_PortSourceGPIOD) || \
((PORTSOURCE) == GPIO_PortSourceGPIOE))
#define IS_GPIO_EXTI_PORT_SOURCE(PORTSOURCE) (((PORTSOURCE) == GPIO_PortSourceGPIOA) || \
((PORTSOURCE) == GPIO_PortSourceGPIOB) || \
((PORTSOURCE) == GPIO_PortSourceGPIOC) || \
((PORTSOURCE) == GPIO_PortSourceGPIOD) || \
((PORTSOURCE) == GPIO_PortSourceGPIOE) || \
((PORTSOURCE) == GPIO_PortSourceGPIOF) || \
((PORTSOURCE) == GPIO_PortSourceGPIOG))
/**
* @}
*/
/** @defgroup GPIO_Pin_sources
* @{
*/
#define GPIO_PinSource0 ((uint8_t)0x00)
#define GPIO_PinSource1 ((uint8_t)0x01)
#define GPIO_PinSource2 ((uint8_t)0x02)
#define GPIO_PinSource3 ((uint8_t)0x03)
#define GPIO_PinSource4 ((uint8_t)0x04)
#define GPIO_PinSource5 ((uint8_t)0x05)
#define GPIO_PinSource6 ((uint8_t)0x06)
#define GPIO_PinSource7 ((uint8_t)0x07)
#define GPIO_PinSource8 ((uint8_t)0x08)
#define GPIO_PinSource9 ((uint8_t)0x09)
#define GPIO_PinSource10 ((uint8_t)0x0A)
#define GPIO_PinSource11 ((uint8_t)0x0B)
#define GPIO_PinSource12 ((uint8_t)0x0C)
#define GPIO_PinSource13 ((uint8_t)0x0D)
#define GPIO_PinSource14 ((uint8_t)0x0E)
#define GPIO_PinSource15 ((uint8_t)0x0F)
#define IS_GPIO_PIN_SOURCE(PINSOURCE) (((PINSOURCE) == GPIO_PinSource0) || \
((PINSOURCE) == GPIO_PinSource1) || \
((PINSOURCE) == GPIO_PinSource2) || \
((PINSOURCE) == GPIO_PinSource3) || \
((PINSOURCE) == GPIO_PinSource4) || \
((PINSOURCE) == GPIO_PinSource5) || \
((PINSOURCE) == GPIO_PinSource6) || \
((PINSOURCE) == GPIO_PinSource7) || \
((PINSOURCE) == GPIO_PinSource8) || \
((PINSOURCE) == GPIO_PinSource9) || \
((PINSOURCE) == GPIO_PinSource10) || \
((PINSOURCE) == GPIO_PinSource11) || \
((PINSOURCE) == GPIO_PinSource12) || \
((PINSOURCE) == GPIO_PinSource13) || \
((PINSOURCE) == GPIO_PinSource14) || \
((PINSOURCE) == GPIO_PinSource15))
/**
* @}
*/
/** @defgroup Ethernet_Media_Interface //媒体界面
* @{
*/
#define GPIO_ETH_MediaInterface_MII ((u32)0x00000000)
#define GPIO_ETH_MediaInterface_RMII ((u32)0x00000001)
#define IS_GPIO_ETH_MEDIA_INTERFACE(INTERFACE) (((INTERFACE) == GPIO_ETH_MediaInterface_MII) || \
((INTERFACE) == GPIO_ETH_MediaInterface_RMII))
/**
* @}
*/
/**
* @}
*/
/** @defgroup GPIO_Exported_Macros //导出 宏
* @{
*/
/**
* @}
*/
/** @defgroup GPIO_Exported_Functions
* @{
*/
void GPIO_DeInit(GPIO_TypeDef* GPIOx); //取消初始化
void GPIO_AFIODeInit(void); //取消备用函数初始化
void GPIO_Init(GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitStruct); //初始化函数
void GPIO_StructInit(GPIO_InitTypeDef* GPIO_InitStruct); //还是初始化用的
uint8_t GPIO_ReadInputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin); //读 输入 引脚 值
uint16_t GPIO_ReadInputData(GPIO_TypeDef* GPIOx); //读 输入 数据 值
uint8_t GPIO_ReadOutputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
uint16_t GPIO_ReadOutputData(GPIO_TypeDef* GPIOx);
void GPIO_SetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin); //设置端口输出高电平
void GPIO_ResetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin); //配置端口输出低电平
void GPIO_WriteBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, BitAction BitVal); //擦写选定的数据端口位
void GPIO_Write(GPIO_TypeDef* GPIOx, uint16_t PortVal); //写数据
void GPIO_PinLockConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin); //引脚锁定配置
void GPIO_EventOutputConfig(uint8_t GPIO_PortSource, uint8_t GPIO_PinSource); //事件输出配置
void GPIO_EventOutputCmd(FunctionalState NewState); //事件输出指令
void GPIO_PinRemapConfig(uint32_t GPIO_Remap, FunctionalState NewState); //端口 重映射 配置
void GPIO_EXTILineConfig(uint8_t GPIO_PortSource, uint8_t GPIO_PinSource); //exti配置
void GPIO_ETH_MediaInterfaceConfig(uint32_t GPIO_ETH_MediaInterface); //选择 网络 接口
#ifdef __cplusplus
}
#endif
#endif /* __STM32F10x_GPIO_H */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/