nextzone的专栏

刚刚调试好的LCD19264点阵驱动程序<br>可显示16x16汉字(不含字库处理)<br>PIC16F877A上调试成功<br>==================================================<br>#define lcd_DI RA0 // Out 1=Data 0=Instuction.<br>#define lcd_RW RA1 // Out 1=Read 0=Write.<br>#define lcd_E RA2 // Out RW=1,E=1,Read DDRAM to bus; RW=0,E=1->0,Write to IR or DR.<br>#define lcd_CS1 RA3 // Out 0=Select left chip.<br>#define lcd_RESET RA4 // In 0=RESET. Not use.<br>#define lcd_CS2 RA5 // Out 0=Select middle chip.<br>#define lcd_CS3 RE0 // out 0=Select right chip.<br>#define lcd_DATA PORTD // Out/In, 8bit data bus.<br><br>#define lcd_DATA_IN() {TRISD=0xFF;}<br>#define lcd_DATA_OUT() {TRISD=0;}