小型温室大棚控制系统电子设计报告(12)

电子设计报告

////////////HB12864液晶并行显示/////////////////////////////// void WriteByteToLcm(uchar dat) { }

void Strplay(uchar Command,uchar X, uchar Y, uchar *s) {

while( BUSY == 1 ); DB=dat; _nop_(); _nop_(); REQ = 0;

//REQ=0,向LCD发请求命令

//等待LCM空闲(BUSY为低)

//向总线送数

while( BUSY == 0 ); //等待LCM相应请求(BUSY为高) REQ = 1;

//复原请求信号

WriteByteToLcm(Command); WriteByteToLcm(X); WriteByteToLcm(Y);

while (*s) {

WriteByteToLcm(*s); // 显示字符 s++; }

WriteByteToLcm(0x00); //结束符 }

void Numplay(uchar Command,uchar X, uchar Y, uchar Z) {

WriteByteToLcm(Command);

WriteByteToLcm(X); WriteByteToLcm(Y);

WriteByteToLcm(Z);