| 提交 | 用户 | age | ||
| 5dd1b7 | 1 | #include "STC15F2K60S2.H" |
| Q | 2 | |
| 3 | void UartInit(void) //115200bps@22.1184MHz | |
| 4 | { | |
| 5 | SCON = 0x50; //8位数据,可变波特率 | |
| 6 | AUXR |= 0x40; //定时器时钟1T模式 | |
| 7 | AUXR &= 0xFE; //串口1选择定时器1为波特率发生器 | |
| 8 | TMOD &= 0x0F; //设置定时器模式 | |
| 9 | TL1 = 0xD0; //设置定时初始值 | |
| 10 | TH1 = 0xFF; //设置定时初始值 | |
| 11 | ET1 = 0; //禁止定时器中断 | |
| 12 | TR1 = 1; //定时器1开始计时 | |
| 13 | } | |
| 14 | ||
| 15 | ||
| 16 | void UART1_Isr() interrupt 4 | |
| 17 | { | |
| 18 | if(TI) //若传输中断标志'TI'被设置，即发送缓冲区为空且发送寄存器可以接收新数据 | |
| 19 | { | |
| 20 | TI = 0; //'TI'被清零，准备发送下一个字节 | |
| 21 | if(sendPosi < sendCount) //若发送位置小于发送计数 | |
| 22 | { | |
| 23 | sendPosi++; | |
| 24 | //ACC = sendBuf[sendPosi]; | |
| 25 | //TB8 = P; | |
| 26 | SBUF = sendBuf[sendPosi]; //串口发送缓存寄存器'SBUF'被写入，以进行发送 | |
| 27 | } | |
| 28 | else | |
| 29 | { | |
| 30 | // b485Send = 0; | |
| 31 | receCount = 0; | |
| 32 | checkoutError = 0; | |
| 33 | } | |
| 34 | } | |
| 35 | else if(RI) //若接收中断标志'RI'被设置，即接收寄存器收到新数据 | |
| 36 | { | |
| 37 | RI = 0; | |
| 38 | ||
| 39 | receBuf[receCount] = SBUF; //接收寄存器 SBUF 的值存储到接收缓冲区 receBuf[receCount] 中 | |
| 40 | ||
| 41 | receCount++; | |
| 42 | //receCount &= 0x1f; | |
| 43 | ||
| 44 | } | |
| 45 | } | |
