77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
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#include "hx_serial.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#define BUFFER_SIZE 1024
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#define OUTPUT_FILE "serial_data.txt"
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int main() {
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by_serial_t serial_port;
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char buffer[BUFFER_SIZE];
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int bytes_read;
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int total_bytes_read = 0;
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FILE *output_file;
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// 初始化串口
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if (by_serial_init(&serial_port, "/dev/ttyUSB1") != 0) {
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fprintf(stderr, "Failed to initialize serial port\n");
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return -1;
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}
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by_serial_set_baudrate(&serial_port, 115200);
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by_serial_set_parity(&serial_port, 8, 1, 'N');
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// 打开输出文件
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output_file = fopen(OUTPUT_FILE, "wb");
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if (output_file == NULL) {
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fprintf(stderr, "Failed to open output file\n");
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close(serial_port.fd);
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return -1;
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}
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printf("Reading from serial port. Press ENTER to stop...\n");
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// 循环读取串口数据
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while (1) {
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// // 检查用户输入
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// if (fgetc(stdin) == '\n') {
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// break;
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// }
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// 检查缓冲区中是否有数据
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int used_len = by_serial_get_used_buffer_len(&serial_port);
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if (used_len <= 0) {
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usleep(100000); // 等待 100ms
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// printf("no data\n");
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continue;
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}else{
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printf("used_len = %d; ", used_len);
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}
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// 读取数据
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bytes_read = by_serial_read(&serial_port, buffer, BUFFER_SIZE);
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if (bytes_read < 0) {
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fprintf(stderr, "Error reading from serial port\n");
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break;
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}
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total_bytes_read += bytes_read;
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printf("Total bytes read: %d\n", total_bytes_read);
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// 将数据以 ASCII 格式写入文件
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// fwrite(buffer, 1, bytes_read, output_file);
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for (int i = 0; i < bytes_read; i++) {
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fprintf(output_file, "%02X ", (unsigned char)buffer[i]);
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}
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fprintf(stderr, "Wrote %d bytes to file\n", bytes_read);
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}
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// 关闭文件和串口
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fclose(output_file);
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close(serial_port.fd);
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printf("Data capture stopped. Data saved to %s\n", OUTPUT_FILE);
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return 0;
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}
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