ARMday06(串口)

代码：

#include "stm32mp1xx_gpio.h"
#include "stm32mp1xx_rcc.h"
#include "stm32mp1xx_uart.h"

void delay_ms(int ms)
{
    int i,j;
    for(i=0;i1
    RCC->MP_APB1ENSETR |= (0x11
    //RCC_MP_AHB4ENSETR[1]->1
    RCC->MP_AHB4ENSETR |= (0x1MP_AHB4ENSETR |= (0X110
    GPIOG->MODER &= (~(0X3MODER |= (0X20110    
    GPIOG->AFRH &= (~(0xfAFRH |= (0x610
    //GPIOB_AFRL[11:8]->1000
    GPIOB->MODER &= (~(0x3MODER |= (0X2AFRL &= (~(0xFAFRL |= (0x8CR1 & 0X1){
		delay_ms(500);
	    USART4->CR1 &=(~(0x1 0  CR1[12]-》0
    USART4->CR1 &= (~(0X1CR1 &= (~(0X10
    USART4->CR1 &= (~(0X100
    USART4->CR2 &= (~(0x30
    USART4->CR1 &= (~(0X1BRR |= 0X22B;
    //设置1分频 PRESC[3:0]->0000
    USART4->PRESC &= (~(0XF 1
    USART4->CR1 |= (0X11
    USART4->CR1 |= (0X11
    USART4->CR1 |= (0X1); 
}
void putc(char data服务器托管网)
{
//判断发送数据寄存器有没有数据，没有数据时可以发送
    while(!(USART4->ISR&(0X1TDR=data;//将要发送的数据保存在发送寄存器中
    while(!(USART4->ISR&(0X1ISR & (0x1 RDR;
	return ch;
}
void puts(char *data){
	char *c=data;
	for(;*c!='';c++){
		putc(*c);
	}
	putc(*c);
	putc('n');
	putc('r');
}
char data[50]="";
char *get服务器托管网s(void){
	int i;
	for(i=0;i

what a pity,can’t run

now，it can run

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