喷码机源码

 void SPI1_Init()
{
rGPFDAT|=(0x1<<6)|(0x1<<4)|(0x1<<3)|(0x1<<2); //初始化PHO=1，nSS2=1，nSS1=1，nFIRE=1；
rGPFDAT&=~(0x1<<1)|(0x1<<0);//初始化nFeset=0,power=0;

rSPPRE1 = 0x18;   //波特率为1MHZ
rSPCON1 = 0x1e;  //查询模式，SCK使能，主机模式，CPOL=1时钟悬空高,CPHA=1 第2个边沿数据捕获，普通模式
rSPPIN1 = 0x02;
}

void SPI1_SendByte(char data)
{
while(!(rSPSTA1 & 0x1));   //Wait until THR is empty.
//  Delay(1);
rSPTDAT1=data;
}

void SPI1_SendString(char *pt)
{
    int i;
    while(*pt)
{  
    while(rGPGDAT&(0x1<<3)); //检测GPG3:ready=0 发送数据 
Delay(50);    //大约延时60us

    rGPFDAT&=~(0x1<<4);  //nSS1=0 
        for(i=0;i<8;i++)
{
Uart_SendByte(*pt++);
}