C51控制并口打印機(jī)實(shí)例：/* 沈陽(yáng)新榮達(dá)電子 *//* 2004-12-7 */#include <reg52.h>#define uchar unsigned char#define uint unsigned int#define data_8 P0sbit BUSY = P1^2; //打印機(jī) BUSY 接P1.2sbit STB = P1^0; //打印機(jī) STB 接P1.0void print(uchar j) //打印子程序{ uchar i;while(BUSY){}; //BUSY=1，打印機(jī)忙，等待BUSY 為0 再發(fā)數(shù)data_8=j;STB=0;i++;i--;STB=1; //給出數(shù)據(jù)鎖存時(shí)鐘BUSY=1;}void main(void){BUSY = 1; //忙信號(hào)置高STB = 1; //選通信號(hào)置高print(0x1b); //打印機(jī)初始化命令print(0x38);print(0x04);for(;;){print(0xd0); //發(fā)送漢字內(nèi)碼“新榮達(dá)”print(0xc2);print(0xc8);print(0xd9);print(0xb4);print(0xef);print(0x0d); //換行}}
標(biāo)簽：
微型打印機(jī)
打印
上傳時(shí)間：
2013-11-13
上傳用戶：lwq11
