gauch/RefKEIL
1
0
Fork 0
forked from trocache/RefKEIL
Code Issues Pull requests Releases Wiki Activity

Added the activation of the specific clock to the GPIO port, during their initialization.

Browse source 
Added comments.
This commit is contained in:
Manon Sanchez 2023-03-20 14:20:52 +01:00
parent 4521ebea42
commit 80977b8053
2 changed files with 26 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

26
ProjetsKEIL/Drivers/Driver_GPIO.c
View file

@ -1,9 +1,29 @@
#include "Driver_GPIO.h"
#include "stm32f10x.h"
#include "stdio.h"
/* GPIO init function */
void MyGPIO_Init ( MyGPIO_Struct_TypeDef * GPIOStructPtr )
{
/* Activation of the GPIO port specific clock */
if (GPIOStructPtr->GPIO == GPIOA)
{
RCC->APB2ENR |= RCC_APB2ENR_IOPAEN;
}
else if (GPIOStructPtr->GPIO == GPIOB)
{
RCC->APB2ENR |= RCC_APB2ENR_IOPBEN;
}
else if (GPIOStructPtr->GPIO == GPIOC)
{
RCC->APB2ENR |= RCC_APB2ENR_IOPCEN;
}
else if (GPIOStructPtr->GPIO == GPIOD)
{
RCC->APB2ENR |= RCC_APB2ENR_IOPDEN;
}
/* Reset, and then configuration writing of the selected GPIO Pin */
if(GPIOStructPtr->GPIO_Pin <= 8)
{
@ -24,18 +44,22 @@ void MyGPIO_Init ( MyGPIO_Struct_TypeDef * GPIOStructPtr )
GPIOStructPtr->GPIO->ODR |= 0x1<<(GPIOStructPtr->GPIO_Pin);
}
}
/* Read of the state of the GPIO */
int MyGPIO_Read ( GPIO_TypeDef * GPIO , char GPIO_Pin )
{
return ((GPIO->ODR & (0x1<<GPIO_Pin))>>GPIO_Pin);
}
/* Set the state of the GPIO */
void MyGPIO_Set (GPIO_TypeDef * GPIO , char GPIO_Pin)
{
GPIO->ODR &= 0x1<<GPIO_Pin;
}
/* Reset the state of the GPIO */
void MyGPIO_Reset (GPIO_TypeDef * GPIO , char GPIO_Pin)
{
GPIO->ODR |= ~(0x1<<GPIO_Pin);
}
/* Toogle the state of the GPIO */
void MyGPIO_Toggle ( GPIO_TypeDef * GPIO , char GPIO_Pin )
{
if(MyGPIO_Read(GPIO, GPIO_Pin))