火哥新录制的STM32F103第7讲（第2节）使用寄存器点亮LED，作业情况

fire · 发表于 2020-8-12 10:45:35

小光含发表于 2020-8-11 22:43
火哥，请问作业是指百度网盘的教学视频中的吗？

是的

fire · 发表于 2020-8-12 10:45:35

小光含发表于 2020-8-11 22:43
火哥，请问作业是指百度网盘的教学视频中的吗？

是的

奋斗的蜗牛 · 发表于 2021-1-28 15:15:37

哈咻咻咻duang 发表于 2020-8-11 17:10
为什么我按照你的代码敲上去后，出现了
“main.c(25): error: #22: invalid hexadecimal number
PIOB_ODR ...

重新敲一遍

ID-b3LMr3 · 发表于 2021-11-8 21:12:49

小灯不亮，按下复位键就亮了，这是啥情况，有大佬知道吗

#include "stm32f10x.h"

int main(void)
{
//ABP2外设寄存器复位
   *(unsigned int *)0x40021018 |= ((1)<<3);
//端口配置低位寄存器
   *(unsigned int *)0x40010C00 &= ~((0x0f)<<(4*0));
   *(unsigned int *)0x40010C00 |=  ((1)<<(4*0));
//端口ODR输出
   *(unsigned int *)0x40010C0C &= ~(1<<0);
}

void SystemInit(void)
{

}

一级菜鸟 · 发表于 2021-11-10 08:36:10

ID-b3LMr3 发表于 2021-11-8 21:12
小灯不亮，按下复位键就亮了，这是啥情况，有大佬知道吗

看你用什么下载器，下载器配置那里那里勾选自动复位运行
把使用前必读的说明文档仔细阅读一下

richard2021 · 发表于 2021-11-29 21:43:07

参考了各位大神的，最后发现我的是延时时间写短了。
//#include "stm32f10x.h"
void delay(unsigned int z)
{
unsigned int x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}

int main(void)
{
//APB2使能时钟
*(unsigned int*)0x40021018 |= (1<<3);
//设置GPIO输入输出模式
//*(unsigned int*)0x40010C00 |= (1<<4*0); //PB0绿灯
//*(unsigned int*)0x40010C00 |= (1<<4*5); //PB5红灯
//*(unsigned int*)0x40011800 &=~((0x0F)<<(4*1));
//*(unsigned int*)0x40010C00 &=~((0x0F)<<(4*1));
*(unsigned int*)0x40010C00 |= (1<<4*1); //PB5蓝灯

while(1)
{
//设置GPIO高低电平
//*(unsigned int*)0x40010C0C &= ~(1<<0); //PB0绿灯
//*(unsigned int*)0x40010C0C &= ~(1<<5); //PB0红灯
*(unsigned int*)0x40010C0C &= ~(1<<1); //PB0蓝灯
delay(5000);
*(unsigned int*)0x40010C0C |= (1<<1); //PB0蓝灯
delay(5000);
}
}

void SystemInit(void)
{
// 函数体为空，目的是为了骗过编译器不报错
}

richard2021 · 发表于 2021-11-30 22:06:59

MrChen 发表于 2017-10-1 23:17
我也遇到这样的问题，一年过去了，你解决了吗

CRL的设置也要放到while(1)中，如果三种颜色的CRL都在while之前设置，就会先亮所有的颜色，然后才进入while循环。
while(1)
{
GPIOB_CRL |= (1<<4*0); //PB0绿灯
GPIOB_ODR  &= ~(1<<0);
delay(1000);
GPIOB_ODR |= (1<<0);
delay(1000);

GPIOB_CRL |= (1<<4*1); //PB1蓝灯
GPIOB_ODR  &= ~(1<<1);
delay(1000);
GPIOB_ODR |= (1<<1);
delay(1000);

GPIOB_CRL |= (1<<4*5); //PB5绿灯
GPIOB_ODR  &= ~(1<<5);
delay(1000);
GPIOB_ODR |= (1<<5);
delay(1000);
}

嵌入式小明 · 发表于 2022-1-7 10:37:47

error: #5: cannot open source input file "core_cm3.h": No such file or directory
#include "core_cm3.h"

你们有出现这个情况吗，我直接复制的代码，然后这样报错

嵌入式小明 · 发表于 2022-1-10 17:14:17

嵌入式小明发表于 2022-1-7 10:37
error: #5: cannot open source input file "core_cm3.h": No such file or directory
#include "core_c ...

回复的帖子不能删除的嘛？

半度丶 · 发表于 2024-7-7 21:15:31

#include "stm32f10x.h"
void delay(int j)
{
while(j--);
}

int main (void)
{
*(unsigned int*) 0x40021018 |= ( (1) << 3 );

while(1)
{
*(unsigned int*) 0x40010C00 = 0;
*(unsigned int*) 0x40010C00 |= ( (1) << (4*0) );
*(unsigned int*) 0x40010C0C &= ~(1<<0);
delay(1000000);
*(unsigned int*) 0x40010C00 = 0;
*(unsigned int*) 0x40010C00 |= ( (1) << (4*0) );
*(unsigned int*) 0x40010C0C |= (1<<0);
   delay(1000000);
*(unsigned int*) 0x40010C00 = 0;
*(unsigned int*) 0x40010C00 |= ( (1) << (4*1) );
*(unsigned int*) 0x40010C0C &= ~( 1 << 1 );
   delay(1000000);
*(unsigned int*) 0x40010C00 = 0;
*(unsigned int*) 0x40010C00 |= ( (1) << (4*1) );
*(unsigned int*) 0x40010C0C |= ( 1 << 1 );
   delay(1000000);
*(unsigned int*) 0x40010C00 = 0;
*(unsigned int*) 0x40010C00 |= ( (1) << (4*5) );
*(unsigned int*) 0x40010C0C &= ~( 1 << 5 );
   delay(1000000);
*(unsigned int*) 0x40010C00 = 0;
*(unsigned int*) 0x40010C00 |= ( (1) << (4*5) );
*(unsigned int*) 0x40010C0C |= ( 1 << 5 );
   delay(1000000);
}
}

void SystemInit(void)
{

}

半度丶 · 发表于 2024-7-7 21:16:07

半度丶发表于 2024-7-7 21:15
#include "stm32f10x.h"
void delay(int j)
{

因为复位的时候无法控制状态，只能在循环的时候进行清0操作

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