基于STM8的24C16读写程序

void I2C_Send(uint8_t buffer) { SDA_OUT; uint8_t temp,bitcnt,i; bitcnt=7; if((buffer&0x80)==0) SDA_0; else SDA_1; Delay_us(2); temp=buffer<<1; buffer=temp; SCL_1; Delay_us(2); while(bitcnt) { if((buffer&0x80)==0) {SCL_0;SDA_0;} else {SCL_0;SDA_1;} Delay_us(2); temp=buffer<<1; buffer=temp; SCL_1; Delay_us(2); bitcnt--; } SCL_0; if(I2C_Ack2()) return 0; else return 1; } uint8_t I2C_Receive() { SDA_IN; uint8_t receive,i; for(i=0;i<8;i++) { SCL_1; Delay_us(2); if(SDA) receive |= 0x01; else receive &= 0x00; receive = reveice<<1; SCL_0; Delay_us(1); } return receive(); }