//-----------------------------------------------------------------
// 串口初始化
//-----------------------------------------------------------------
void USCI_A0_graceInit(void)
{
/* USER CODE START (section: USCI_A0_graceInit_prologue) */
/* User initialization code */
/* USER CODE END (section: USCI_A0_graceInit_prologue) */
/* Disable USCI */
UCA0CTL1 |= UCSWRST;
/*
* Control Register 1
*
* UCSSEL_2 -- SMCLK
* ~UCRXEIE -- Erroneous characters rejected and UCAxRXIFG is not set
* ~UCBRKIE -- Received break characters do not set UCAxRXIFG
* ~UCDORM -- Not dormant. All received characters will set UCAxRXIFG
* ~UCTXADDR -- Next frame transmitted is data
* ~UCTXBRK -- Next frame transmitted is not a break
* UCSWRST -- Enabled. USCI logic held in reset state
*
* Note: ~<BIT> indicates that <BIT> has value zero
*/
UCA0CTL1 = UCSSEL_2 | UCSWRST;
/*
* Modulation Control Register
*
* UCBRF_0 -- First stage 0
* UCBRS_1 -- Second stage 1
* ~UCOS16 -- Disabled
*
* Note: ~UCOS16 indicates that UCOS16 has value zero
*/
UCA0MCTL = UCBRF_0 | UCBRS_1;
/* Baud rate control register 0 */
UCA0BR0 = 104;
/* Enable USCI */
UCA0CTL1 &= ~UCSWRST;
/* USER CODE START (section: USCI_A0_graceInit_epilogue) */
/* User code */
/* USER CODE END (section: USCI_A0_graceInit_epilogue) */
}
//-----------------------------------------------------------------
// 串口發送一個字節
//-----------------------------------------------------------------
void com_send_command(char Onebyte)
{
UCA0TXBUF = Onebyte;
__delay_cycles(2000);//發送漢字參數2000,發送字符參數為1000
}
//------------------------------------------------------------------
// 串口接收中斷程序
//------------------------------------------------------------------
#pragma vector=USCIAB0RX_VECTOR
__interrupt void USCI0RX_ISR_HOOK(void)
{
uint8_t temp;
uint8_t temp1;
// USER CODE START (section: USCI0RX_ISR_HOOK)
// replace this comment with your code
// USER CODE END (section: USCI0RX_ISR_HOOK)
while (!(IFG2&UCA0TXIFG)); // USCI_A0 TX buffer ready?
//判斷串口的發送是否正在工作，
//因為要使用發送功能，所以得判斷發送是否忙碌，
//只有在不忙碌的時候才可以啟用發送。
//這一句就是判斷發送是否在工作，如果是在工作，那么一直等待到不工作為止。
temp1 = UCA0RXBUF; //讀取數據 // TX -> RXed character
temp = pint_write + 1; /* 判斷是否可以寫入 */
if (temp == MAX_RINTL)
{
temp=0;
}
if (temp != pint_read)
{
pint_buf[pint_write] = temp1; /* 讀取數據 */
pint_write = temp;
}
}
void buff_init(void)
{
uint8_t loop;
loop = UCA0RXBUF; /* 清串口緩沖區 */
for (loop=0; loop<MAX_RINTL; loop++)
{
pint_buf[loop] = 0;
}
}
Comint.h
#ifndef __COMINT_H__
#define __COMINT_H__
#include <stdio.h>
#include <msp430.h>
#define INT8U unsigned char
#define INT16U unsigned int
#define uint8_t unsigned char
#define u_short unsigned int
#define uint16_t unsigned int
#define ZU 0x01 /*組地址*///通訊地址修改這兩項
#define ZHAN 0x02 /*站地址*///通訊地址修改這兩項