STC12C5A60S2-串口1读ID.zip_SL7_STC12-串口1读ID_STC12单片机_bt2

/*------------------------------------------------------------------*/ /* --- STC MCU International Limited -------------------------------*/ /* --- STC 1T Series MCU Programme Demo ----------------------------*/ /* --- Fax: 86-755-82944243 ----------------------------------------*/ /* --- Tel: 86-755-82948412 ----------------------------------------*/ /* --- Web: www.STCMCU.com -----------------------------------------*/ /* If you want to use the program or the program referenced in the */ /* article, please specify in which data and procedures from STC */ /*------------------------------------------------------------------*/ /* 本程序经过测试完全正常, 不提供电话技术支持, 如不能理解, 请自行补充相关基础. */ /************* 本程序功能说明 ************** 测试方法： 根据您的主时钟和波特率修改下面的相关定义，编译后下载到MCU。 通过串口助手向MCU发送数据，MCU收到后原样返回。 发单个字符'i'，将返回唯一ID号。 发单个字符'r'，将返回内部震荡频率。 */ /*************** 用户定义参数 *****************************/ #define MAIN_Fosc 22118400L //define main clock #define Baudrate0 9600 //define the baudrate, //12T mode: 600~115200 for 22.1184MHZ, 300~57600 for 11.0592MHZ //1T mode: 7200~1382400 for 22.1184MHZ, 3600~691200 for 11.0592MHZ /**********************************************************/ #include <reg51.h> sfr AUXR = 0x8E; bit B_TI; unsigned char id[7]; unsigned long Rosc,RoscZ; unsigned char Command; void uart0_init(void); /****************** 编译器自动生成，用户请勿修改 ************************************/ #define T1_TimerReload (256 - MAIN_Fosc / 192 / Baudrate0) //Calculate the timer1 reload value at 12T mode //#define T1_TimerReload (256 - MAIN_Fosc / 16 / Baudrate0) //Calculate the timer1 reload value ar 1T mode /**********************************************************/ void TxByte(unsigned char dat); unsigned char HEX2DEC(unsigned char dat); void PrintStrings(unsigned char code *sts); void main(void) { unsigned char i; unsigned int j; unsigned char idata *p; p = 0xf1; for(i=0; i<7; i++) { id[i] = *p; p++; } Rosc = 0; for(p=0xf8; p<=0xfb; p++) Rosc = (Rosc << 8) + *p; RoscZ = 0; for(p=0xfc; p>0; p++) RoscZ = (RoscZ << 8) + *p; uart0_init(); PrintStrings("读ID和内部震荡频率\r\n"); PrintStrings("发单个字符'i'，将返回唯一ID号。\r\n"); PrintStrings("发单个字符'r'，将返回内部震荡频率。\r\n"); while(1) { for(j=0; j<1500; j++) ; //14T per loop, delay 1ms if(Command != 0) //收到命令 { if(Command == 'i') //读取ID命令 { PrintStrings("本IC的ID号为："); for(i=0; i<7; i++) { TxByte(HEX2DEC(id[i] >> 4)); TxByte(HEX2DEC(id[i]& 0x0f)); TxByte(' '); } TxByte(0x0d); TxByte(0x0a); } if(Command == 'r') //读取内部频率命令 { PrintStrings("内部震荡频率为："); TxByte(Rosc / 10000000L + '0'); TxByte(Rosc % 10000000L / 1000000L + '0'); TxByte('.'); TxByte(Rosc % 1000000L / 100000L + '0'); TxByte(Rosc % 100000L / 10000 + '0'); TxByte(Rosc % 10000 / 1000 + '0'); TxByte(Rosc % 1000 / 100 + '0'); TxByte(Rosc % 100 / 10 + '0'); TxByte(Rosc % 10 + '0'); TxByte('M'); TxByte('H'); TxByte('Z'); TxByte(0x0d); TxByte(0x0a); } Command = 0; } } } unsigned char HEX2DEC(unsigned char dat) { dat &= 0x0f; if(dat <= 9) return (dat+'0'); else return (dat+55); } void TxByte(unsigned char dat) { B_TI = 0; SBUF = dat; while(!B_TI) ; B_TI = 0; } /**********************************************/ void PrintStrings(unsigned char code *sts) { for (; *sts != 0; sts++) TxByte(*sts); } void uart0_init(void) { PCON |= 0x80; //UART0 Double Rate Enable SCON = 0x50; //UART0 set as 10bit , UART0 RX enable TMOD &= ~(1<<6); //Timer1 Set as Timer, 12T TMOD = (TMOD & ~0x30) | 0x20; //Timer1 set as 8 bits auto relaod // AUXR |= (1<<6); //Timer1 set as 1T mode TH1 = T1_TimerReload; //Load the timer TR1 = 1; ES = 1; EA = 1; } /**********************************************/ void UART0_RCV (void) interrupt 4 { if(RI) { RI = 0; Command = SBUF; } if(TI) { TI = 0; B_TI = 1; } }