initial commit

tool_capserial.c

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