|
發布時間: 2018-3-19 20:44
正文摘要:STC15L100的芯片與ZGB相連，做一個簡單的串口發送數據，發送規定的數據，外部中斷3進行控制，來一個外部中斷，發送一次數據程序，下板之后，下板成功，鏈接串口助手，按下中斷，第一組DATA數據正確，延時后，發送DAT ... |
本帖最后由 木易陽 于 2018-3-21 18:17 編輯 wulin 發表于 2018-3-20 20:46 謝謝，就是他的外部中斷3是怎么控制的，比如說我按下按鍵發出外部中斷3信號，串口開始發送DATA里的數據，但是數據發送是亂碼 #include <reg51.h> char code DATA[19]={0x02, 0x6c, 0x62, 0x03, 0x03, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc1}; //隱 unsigned char i=0; //----------------------------------------- //define baudrate const //BAUD = 65536 - FOSC/3/BAUDRATE/M (1T:M=1; 12T:M=12) //NOTE: (FOSC/3/BAUDRATE) must be greater then 98, (RECOMMEND GREATER THEN 110) #define BAUD 0xFE80 // 9600bps @ 11.0592MHz sfr AUXR = 0x8E; sfr INT_CLKO = 0x8f; sbit RXB = P3^0; //define UART TX/RX port sbit TXB = P3^1; sbit T3 = P3^5; sbit led = P3^4; typedef bit BOOL; typedef unsigned char BYTE; typedef unsigned int WORD; BYTE TBUF,RBUF;//字節 BYTE TDAT,RDAT; BYTE TCNT,RCNT; BYTE TBIT,RBIT; BOOL TING,RING; BOOL TEND,REND; void UART_INIT(); BYTE r; BYTE buf[16]; int k=0; //----------------------------------------- //initial UART module variable void UART_INIT() { TING = 0; RING = 0; TEND = 1; REND = 0; TCNT = 0; RCNT = 0; } void exint3() interrupt 11 { k = 1; led = 1; } void main() { TMOD = 0x00; //timer0 in 16-bit auto reload mode定時器0在16位自動重新加載模式下 AUXR = 0x80; //timer0 working at 1T mode定時器0在1T模式下工作 TL0 = BAUD; TH0 = BAUD>>8; //initial timer0 and set reload value初始計時器0并設置重新加載值 TR0 = 1; //tiemr0 start runningtimer0 tiemr0開始運行 ET0 = 1; //enable timer0 interrupt使timer0中斷 PT0 = 1; //improve timer0 interrupt priority提高定時器0中斷優先級 EA = 1; //總中斷 led = 0; INT_CLKO |= 0x20; UART_INIT(); while (1) { //user's function if (REND) { REND = 0; buf[r++ & 0x0f] = RBUF; //接收緩沖器 高四位清0低四位賦值 } if(k == 1) { if (TEND) { for(i=0;i<19;i++)// { TEND = 0; //發送完一個字符清一次 TBUF = DATA;//發送緩沖器 進行賦值 TING = 1; } k = 0; } } } } //----------------------------------------- //Timer interrupt routine for UART計時器中斷串口 void tm0() interrupt 1 using 1 { //****************接收數據******************/ if (RING) //正在接受數據 { if (--RCNT == 0) { RCNT = 3; //reset send baudrate counter 復位發送波特率計數器 if (--RBIT == 0) { RBUF = RDAT; //save the data to RDAT數據保存到RBUF中 RING = 0; //stop receive 停止接受 REND = 1; //set receive completed flag設置接收完成標志 } else { RDAT >>= 1; //接收到的單bit數據暫存 if (RXB) RDAT |= 0x80; //shift RX data to RX buffer 將RX數據轉移到RX緩沖區 } } } else if (!RXB)//判斷開始位RXB=0 { RING = 1; //set start receive flag 設置開始接收標志 RCNT = 4; //initial receive baudrate counter 初始接收波特率計數器 RBIT = 9; //initial receive bit number (8 data bits + 1 stop bit) 初始接收位(8位數據位1停止位) } //*******************發送********************/ if (--TCNT == 0) { TCNT = 3; //reset send baudrate counter 復位發送波特率計數器 if (TING) //judge whether sending 判斷是否發送 { if (TBIT == 0) { TXB = 0; //send start bit 發送起始位 TDAT = TBUF; //load data from TBUF to TDAT 數據從TBUF加載到TDAT TBIT = 9; //initial send bit number (8 data bits + 1 stop bit)初始發送位(8位數據位1停止位) } else { TDAT >>= 1; //shift data to CY將 數據右移1位，低位送給CY if (--TBIT == 0) { TXB = 1; //發送停止位數據 TING = 0; //stop send發送停止位 TEND = 1; //set send completed flag設置發送完成標志 } else { TXB = CY; //write CY to TX port 發送單bit數據 } } } } } |
木易陽 發表于 2018-3-20 14:02 芯片沒有硬件串口，也就是說沒有與串口相關的寄存器，當然也就沒有SBUF寄存器！ /*---------------------------------------------------------------------*/ /* --- STC MCU Limited ------------------------------------------------*/ /* --- STC15Fxx 系列 軟件模擬串口舉例----------------------------------*/ /* --- Mobile: (86)13922805190 ----------------------------------------*/ /* --- Fax: 86-0513-55012956,55012947,55012969 ------------------------*/ /* --- Tel: 86-0513-55012928,55012929,55012966-------------------------*/ /* 如果要在程序中使用此代碼,請在程序中注明使用了STC的資料及程序 */ /* 如果要在文章中應用此代碼,請在文章中注明使用了STC的資料及程序 */ /*---------------------------------------------------------------------*/ //本示例在Keil開發環境下請選擇Intel的8058芯片型號進行編譯 //若無特別說明,工作頻率一般為11.0592MHz #include "reg51.h" //----------------------------------------- //define baudrate const //BAUD = 65536 - FOSC/3/BAUDRATE/M (1T:M=1; 12T:M=12) //NOTE: (FOSC/3/BAUDRATE) must be greater then 98, (RECOMMEND GREATER THEN 110) //#define BAUD 0xF400 // 1200bps @ 11.0592MHz //#define BAUD 0xFA00 // 2400bps @ 11.0592MHz //#define BAUD 0xFD00 // 4800bps @ 11.0592MHz //#define BAUD 0xFE80 // 9600bps @ 11.0592MHz //#define BAUD 0xFF40 //19200bps @ 11.0592MHz #define BAUD 0xFFA0 //38400bps @ 11.0592MHz //#define BAUD 0xEC00 // 1200bps @ 18.432MHz //#define BAUD 0xF600 // 2400bps @ 18.432MHz //#define BAUD 0xFB00 // 4800bps @ 18.432MHz //#define BAUD 0xFD80 // 9600bps @ 18.432MHz //#define BAUD 0xFEC0 //19200bps @ 18.432MHz //#define BAUD 0xFF60 //38400bps @ 18.432MHz //#define BAUD 0xE800 // 1200bps @ 22.1184MHz //#define BAUD 0xF400 // 2400bps @ 22.1184MHz //#define BAUD 0xFA00 // 4800bps @ 22.1184MHz //#define BAUD 0xFD00 // 9600bps @ 22.1184MHz //#define BAUD 0xFE80 //19200bps @ 22.1184MHz //#define BAUD 0xFF40 //38400bps @ 22.1184MHz //#define BAUD 0xFF80 //57600bps @ 22.1184MHz sfr AUXR = 0x8E; sbit RXB = P3^0; //define UART TX/RX port sbit TXB = P3^1; typedef bit BOOL; typedef unsigned char BYTE; typedef unsigned int WORD; BYTE TBUF,RBUF; BYTE TDAT,RDAT; BYTE TCNT,RCNT; BYTE TBIT,RBIT; BOOL TING,RING; BOOL TEND,REND; void UART_INIT(); BYTE t, r; BYTE buf[16]; void main() { TMOD = 0x00; //timer0 in 16-bit auto reload mode AUXR = 0x80; //timer0 working at 1T mode TL0 = BAUD; TH0 = BAUD>>8; //initial timer0 and set reload value TR0 = 1; //tiemr0 start running ET0 = 1; //enable timer0 interrupt PT0 = 1; //improve timer0 interrupt priority EA = 1; //open global interrupt switch UART_INIT(); while (1) { //user's function if (REND) { REND = 0; buf[r++ & 0x0f] = RBUF; } if (TEND) { if (t != r) { TEND = 0; TBUF = buf[t++ & 0x0f]; TING = 1; } } } } //----------------------------------------- //Timer interrupt routine for UART void tm0() interrupt 1 using 1 { if (RING) { if (--RCNT == 0) { RCNT = 3; //reset send baudrate counter if (--RBIT == 0) { RBUF = RDAT; //save the data to RBUF RING = 0; //stop receive REND = 1; //set receive completed flag } else { RDAT >>= 1; if (RXB) RDAT |= 0x80; //shift RX data to RX buffer } } } else if (!RXB) { RING = 1; //set start receive flag RCNT = 4; //initial receive baudrate counter RBIT = 9; //initial receive bit number (8 data bits + 1 stop bit) } if (--TCNT == 0) { TCNT = 3; //reset send baudrate counter if (TING) //judge whether sending { if (TBIT == 0) { TXB = 0; //send start bit TDAT = TBUF; //load data from TBUF to TDAT TBIT = 9; //initial send bit number (8 data bits + 1 stop bit) } else { TDAT >>= 1; //shift data to CY if (--TBIT == 0) { TXB = 1; TING = 0; //stop send TEND = 1; //set send completed flag } else { TXB = CY; //write CY to TX port } } } } } //----------------------------------------- //initial UART module variable void UART_INIT() { TING = 0; RING = 0; TEND = 1; REND = 0; TCNT = 0; RCNT = 0; } |
wulin 發表于 2018-3-20 10:21 就是用的USB線連得串口線，data不能直接給SBUF嗎?為什么？謝謝回答 |
木易陽 發表于 2018-3-20 08:37 1.此芯片沒有硬件串口， SBUF = DATA[a]; 有什么用？要用軟件模擬串口 2.外部中斷3允許位 INT_CLKO |= 0x20; //(EX3 = 1)使能INT3中斷 void exint3() interrupt 11 //INT3中斷入口 { 中斷任務...... // INT_CLKO &= 0xDF; //若需要手動清除中斷標志,可先關閉中斷,此時系統會自動清除內部的中斷標志 // INT_CLKO |= 0x20; //然后再開中斷即可 } |
wulin 發表于 2018-3-19 21:53 資料里的中段3沒看懂啊 |
devcang 發表于 2018-3-19 22:21 我的外部中斷寫的應該有問題，不太明白，新手 |
|
芯片型號 : STC15L100 關于此芯片的重要說明: 無硬件串口,可用軟件模擬串口 (范例代碼中有參考代碼) 有定時器0和定時器2 (注意:無定時器1) |
組圖打開中，請稍候......
收藏
頂
踩
