摘要:
#define RCK595 PAout(4)#define SI595 PAout(7)#define SCK595 PAout(5) void _74HC595_Init(void){ GPIO_InitTypeDef GPIO_InitStructure; RCC_APB2PeriphCloc 阅读全文
posted @ 2020-09-15 14:26
阡陌奈何
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摘要:
#define SDA_IN() {GPIOB->MODER&=~(3<<(7*2));GPIOB->MODER|=0<<7*2;} //PB7输入模式#define SDA_OUT() {GPIOB->MODER&=~(3<<(7*2));GPIOB->MODER|=1<<7*2;} //PB7输 阅读全文
posted @ 2020-09-15 14:19
阡陌奈何
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