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老铁们,你们有没有见过这种接线方式的?最近在用AD7606做东西,发现别人分享的程序有一个这样的,rd_and_cs = P1^7;RD和CS接在一起?无法理解啊!老铁们帮我看看吧 ***it OS0 = P1^0; ***it OS1 = P1^1; ***it OS2 = P1^2; ***it rage = P1^3; ***it convst = P1^4; ***it busy = P1^5; ***it rst = P1^6; ***it rd_and_cs = P1^7; 全部程序在下面: * This is a program for testing AD7606 used STC89C52RC * The line connecting AD7606 with STC89C52RC is: * STC89C52RC | AD7606 * P0 | DB[0:7] * P2 | DB[8:15] * OS0 | P1^0 * OS1 | P1^1 * OS2 | P1^2 * rage | P1^3 * convst | P1^4 * busy | P1^5 * rst | P1^6 * rd_and_cs | P1^7 * green_led | P3^6 * red_led | P3^7 * GND | GND * +5V | VCC * green_led | P3_6 * red_led | P3_7 * Author : jinming chen * Compang : Hongwei in dongguan * Date : Sep 1 ,2015 */ #include #include #include #include "AD7076.h" #include "other.h" //uchar introduce1[] = "This is a program "; //uchar introduce2[] = "for testing AD7606rn"; uchar sampling[] = "The sampling data is : "; uchar newline[] = "rn"; uchar space[] = " "; uchar *DB_str[16] = {"0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F"}; /* uchar *data_to_string(uchar Data) { uchar tmp; tmp = Data & 0x0f; str[1] =DB_str[binary_to_decimal(tmp)]; tmp = Data>>4; str[0] =DB_str[binary_to_decimal(tmp)]; return str; } */ void serial_init(void) { SCON = 0x50; //UART为模式一,8位数据,允许接收 TMOD |= 0x20; //定时器1为模式二,8位自动重装 PCON |= 0x80; //SMOD=1 TH1 =0xfd; //波特率为19200,晶振频率为11.0592MHz IE = 0x00; TR1 = 1; TI = 1; } /* //向串口发送一个函数 void serial_send_byte(uchar ch) { SBUF=ch; while (TI== 0); TI = 0 ; } */ //向串口发送一串字符数据 void serial_send_string(uchar *p) { while(*p != ' |