tlp.c

lcd1602显示系统 EWB Quartus2编译 电子综合设计试验箱程序

#include <reg51.h>
sbit sdata=P0^3;
sbit sclk=P0^4;
sbit load=P0^5;
void delay(unsigned int d)
{
    while(--d);
}

dac_tlc5620(unsigned char send_char)
{
        unsigned char i;
		load=1;
		sclk=1;sdata=0;sclk=0;
		sclk=1;sdata=0;sclk=0;
        sclk=1;sdata=0;sclk=0;

		for(i=0;i<8;i++)
		{
		        sclk=1;
		        if(send_char&0x80) sdata=1;
				else sdata=0;
				sclk=0;
				send_char=send_char<<1;
		}
		load=0;
		load=1;

}

tlc5620(unsigned char send_char)
{
        unsigned char i;
		load=0;
		delay(1000);

		sclk=0;sdata=1;sclk=1;
		delay(1000);
		sclk=0;sdata=1;sclk=1;
		delay(1000);
        sclk=0;sdata=1;sclk=1;
		delay(1000);

		for(i=0;i<8;i++)
		{
		        sclk=0;
		        if(send_char&0x80) 
				    sdata=0;
				else 
				    sdata=1;
				delay(1000);
				sclk=1;
				send_char=send_char<<1;
		}
		load=1;
		delay(1000);
		load=0;
		delay(1000);

}

main()
{
   //dac_tlc5620(200);
   tlc5620(100);
   while(1); 
}