各位仁兄帮忙解决一下这个问题

mdice1986

各位仁兄帮忙解决一下这个问题 [复制链接]

编译通过，生成hex文件，但是下载到目标板没反应
#define GPIOE_CRL (*((unsigned int *)(0x40012000)))
#define GPIOE_BSRR  (*((unsigned int *)(0x40012010)))
#define GPIOE_BRR (*((unsigned int *)(0x40012014)))
#define RCC_APB2ENR (*((unsigned int *)(0x40022018)))

void delay(void)
{
   unsigned int i;
   for(i = 0; i < 0xffff; ++i)
         ;
}
enum BIT{BIT0,BIT1}       ;

int main(void)
{
  RCC_APB2ENR |=(1<<6);  //使能PORTA时钟
  GPIOE_CRL = 0x44444422;//PE0,1配置为输出
while(1)
{
   GPIOE_BSRR |= BIT0;
   GPIOE_BRR |= BIT0;
   delay();
   GPIOE_BRR |= BIT0;
   GPIOE_BSRR |= BIT1;
   delay();
}
}

122.rar (44.58 KB)

122.hex.rar (1.89 KB)

srong

GPIOE_BSRR |= BIT0;
   GPIOE_BRR |= BIT0;
   delay();
   GPIOE_BRR |= BIT0;
   GPIOE_BSRR |= BIT1;

SET BIT0,马上再RESET BIT0，等待，再RESET BIT0，再SET BIT1

什么意思？