writescl.c

来自「一个AVR单片机at17c85的系统程序」· C语言 代码 · 共 14 行

// WriteSCL.c

#include "at17c.h"
 
void WriteSCL(unsigned char state) {

    if (state)
        DDRB &= 0xfd; // input ... pullup will pull high or slave will drive low
    else
        DDRB |= 0x02; // output ... port latch will drive low

}