一个测力计,它原本有固定的命令来控制,比如AA➕回车键就清零,现在有一个pic32mx130f128l单片机,利用uart1读取测力计返回的数据,如何编程
时间: 2023-05-16 20:07:29 浏览: 91
您可以使用以下代码来控制测力计:
```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <xc.h>
// Define the baud rate for UART1
#define BAUDRATE 9600
// Define the commands for the force gauge
#define COMMAND_CLEAR "AA\r\n"
// Define the buffer size for UART1
#define BUFFER_SIZE 128
// Define the pin configuration for UART1
#define UART1_TX_PIN TRISBbits.TRISB10
#define UART1_RX_PIN TRISBbits.TRISB11
// Initialize UART1
void init_uart1() {
// Set the baud rate for UART1
U1BRG = (PBCLK / (16 * BAUDRATE)) - 1;
// Enable UART1
U1MODEbits.ON = 1;
// Enable transmit and receive pins for UART1
UART1_TX_PIN = 0;
UART1_RX_PIN = 1;
// Enable transmit and receive for UART1
U1STAbits.UTXEN = 1;
U1STAbits.URXEN = 1;
}
// Send a command to the force gauge
void send_command(char* command) {
// Send the command to the force gauge
printf("%s", command);
// Wait for the response from the force gauge
char buffer[BUFFER_SIZE];
int i = 0;
while (1) {
// Read a character from UART1
while (!U1STAbits.URXDA);
char c = U1RXREG;
// Check for the end of the response
if (c == '\r' || c == '\n') {
buffer[i] = '\0';
break;
}
// Add the character to the buffer
buffer[i++] = c;
}
// Print the response from the force gauge
printf("%s\n", buffer);
}
int main() {
// Initialize UART1
init_uart1();
// Send the clear command to the force gauge
send_command(COMMAND_CLEAR);
return 0;
}
```
这个程序使用 UART1 从测力计读取数据,并发送命令来控制测力计。您可以将命令字符串替换为您需要发送的命令。
阅读全文