#include "stm32f10x.h"
#include "delay.h"
void Delay(u32 count)
{
u32 i=0;
for(;i } int main(void) { GPIO_InitTypeDef GPIO_InitStructure; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); //Enable PA delay_init(); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8; //LED0-->PA.8 port configuration GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //Push-pull output GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //IO port speed is 50MHz GPIO_Init(GPIOA, &GPIO_InitStructure); //Initialize GPIOA according to the set parameters.8 GPIO_SetBits(GPIOA,GPIO_Pin_8); //PA.8 output high // GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; //LED1-->PD.2 port configuration, push-pull output // GPIO_Init(GPIOD, &GPIO_InitStructure); //Push-pull output, IO port speed is 50MHz //GPIO_SetBits(GPIOD,GPIO_Pin_2); //PD.2 output high while(1) { GPIO_SetBits(GPIOA,GPIO_Pin_8); //GPIO_SetBits(GPIOD,GPIO_Pin_2); delay_ms(1000); GPIO_ResetBits(GPIOA,GPIO_Pin_8); //GPIO_ResetBits(GPIOD,GPIO_Pin_2); delay_ms(1000); } } Before trying the dealy_ms function, first initialize delay_init. Enable GPIO clock and configure IO port mode The output mode is set to push-pull output, the output frequency is 50MHZ The red light corresponds to pin GPIOA_Pin_8; The yellow light corresponds to the pin GPIOD_Pin_2
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