msp430f5529uart通讯协议接收到字符串0x55 0xfd 0xaa 0x00 0x02 0x61 0x01 0x62并将这几个字符储存到一个数组里
以下是一个示例代码,可以实现msp430f5529的UART通讯协议接收到字符串“0x55 0xfd 0xaa 0x00 0x02 0x61 0x01 0x62”并将这几个字符储存到一个数组里:
#include <msp430.h>
#define BUFFER_SIZE 8
volatile unsigned char buffer[BUFFER_SIZE];
volatile unsigned int buffer_index = 0;
int main(void) {
WDTCTL = WDTPW | WDTHOLD; // stop watchdog timer
PM5CTL0 &= ~LOCKLPM5; // disable the GPIO power-on default high-impedance mode
// configure UART
P3SEL1 |= BIT4 | BIT5; // configure P3.4 and P3.5 as UART pins
P3SEL0 &= ~(BIT4 | BIT5);
UCA0CTLW0 |= UCSWRST; // put UART in reset mode
UCA0CTLW0 |= UCSSEL__SMCLK; // select SMCLK as clock source
UCA0BRW = 52; // set baud rate to 9600
UCA0MCTLW = UCBRS_1 | UCBRF_0 | UCOS16;
UCA0CTLW0 &= ~UCSWRST; // release UART from reset mode
UCA0IE |= UCRXIE; // enable UART receive interrupt
__bis_SR_register(LPM0_bits | GIE); // enter low power mode 0 with interrupts enabled
return 0;
}
#pragma vector=USCI_A0_VECTOR
__interrupt void USCI_A0_ISR(void) {
switch(__even_in_range(UCA0IV, USCI_UART_UCTXCPTIFG)) {
case USCI_NONE: break; // no interrupt
case USCI_UART_UCRXIFG: // receive interrupt
buffer[buffer_index++] = UCA0RXBUF; // store received byte in buffer
if (buffer_index == BUFFER_SIZE) { // buffer full
buffer_index = 0; // reset buffer index
// process received data here
}
break;
case USCI_UART_UCTXIFG: break; // transmit interrupt
case USCI_UART_UCSTTIFG: break; // start bit interrupt
case USCI_UART_UCTXCPTIFG: break; // transmit complete interrupt
}
}
在上面的代码中,我们首先配置了UART接口,然后启用了接收中断。在接收中断处理函数中,我们将接收到的字节存储到一个数组中,并在数组填满后进行数据处理。在这个例子中,我们只是简单地将接收到的数据存储到数组中,没有进行进一步的处理。如果你需要对接收到的数据进行解析,你需要编写相应的解析代码
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