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led流水灯

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cirry
2026-08-11 00:56:52 +08:00
parent d363e04b64
commit 57e7ee15e5
4 changed files with 77 additions and 5 deletions
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41
BSP/Delay.c Normal file
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@@ -0,0 +1,41 @@
#include "stm32f10x.h"
/**
* @brief 微秒级延时
* @param xus 延时时长，范围：0~233015
* @retval 无
*/
void Delay_us(uint32_t xus)
{
SysTick->LOAD = 72 * xus; //设置定时器重装值
SysTick->VAL = 0x00; //清空当前计数值
SysTick->CTRL = 0x00000005; //设置时钟源为HCLK，启动定时器
while(!(SysTick->CTRL & 0x00010000)); //等待计数到0
SysTick->CTRL = 0x00000004; //关闭定时器
}
/**
* @brief 毫秒级延时
* @param xms 延时时长，范围：0~4294967295
* @retval 无
*/
void Delay_ms(uint32_t xms)
{
while(xms--)
{
Delay_us(1000);
}
}
/**
* @brief 秒级延时
* @param xs 延时时长，范围：0~4294967295
* @retval 无
*/
void Delay_s(uint32_t xs)
{
while(xs--)
{
Delay_ms(1000);
}
}

8
BSP/Delay.h Normal file
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@@ -0,0 +1,8 @@
#ifndef __DELAY_H
#define __DELAY_H
void Delay_us(uint32_t us);
void Delay_ms(uint32_t ms);
void Delay_s(uint32_t s);
#endif

2
CMakeLists.txt
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@@ -29,12 +29,14 @@ add_executable(${CMAKE_PROJECT_NAME}
CMSIS/system_stm32f10x.c
${SPL_SRC}
User/main.c
BSP/Delay.c
)
target_include_directories(${CMAKE_PROJECT_NAME} PRIVATE
CMSIS # stm32f10x.h, core_cm3.h, system_stm32f10x.h
StdPeriph_Driver/inc # stm32f10x_gpio.h 等外设头
User # stm32f10x_conf.h
BSP # delay.h
)
target_compile_definitions(${CMAKE_PROJECT_NAME} PRIVATE

31
User/main.c
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@@ -1,13 +1,34 @@
#include "stm32f10x.h"
#include "Delay.h"
int main(void){
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_13;
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_All;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStruct);
// GPIO_SetBits(GPIOC, GPIO_Pin_13);
GPIO_ResetBits(GPIOC, GPIO_Pin_13);
GPIO_Init(GPIOA, &GPIO_InitStruct);
// GPIO_SetBits(GPIOA, GPIO_Pin_0); // 关闭led灯
// GPIO_ResetBits(GPIOA, GPIO_Pin_0); // 打开led灯
// GPIO_WriteBit(GPIOA, GPIO_Pin_7, Bit_RESET); // 打开led灯
// GPIO_WriteBit(GPIOA, GPIO_Pin_0, Bit_SET); // 关闭led灯
while(1){
GPIO_Write(GPIOA, ~0x00000001); // 0000 0000 0000 0001
Delay_ms(500);
GPIO_Write(GPIOA, ~0x00000002); // 0000 0000 0000 0010
Delay_ms(500);
GPIO_Write(GPIOA, ~0x00000004); // 0000 0000 0000 0100
Delay_ms(500);
GPIO_Write(GPIOA, ~0x00000008); // 0000 0000 0000 1000
Delay_ms(500);
GPIO_Write(GPIOA, ~0x00000010); // 0000 0000 0001 0000
Delay_ms(500);
GPIO_Write(GPIOA, ~0x00000020); // 0000 0000 0010 0000
Delay_ms(500);
GPIO_Write(GPIOA, ~0x00000040); // 0000 0000 0100 0000
Delay_ms(500);
GPIO_Write(GPIOA, ~0x00000080); // 0000 0000 1000 0000
Delay_ms(500);
}
}