TLC549 AD转换器实现电压测量与显示.doc

/*利用TLC549 A/D转换器实现电压测量与显示*/#include /包含8051的SFR寄存器定义头文件#include /扩展并行接口所需的绝对地址访问库函数#define LED_digXBYTE0x9000/8位数码管显示器的位选输出控制#define LED_seg XBYTE0x8000/8位数码管显示器的段码（字形码）输出控制#define KEY_IN XBYTE0x8000#define LED XBYTE0xA000/定义TLC549操作接口sbit ADC_CS = P17;sbit ADC_DATA = P16;sbit ADC_CLK = P15;code unsigned char disp_seg=/显示段码0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x77,0x7c,0x39,0x5f,0x79,0x