新增 Hc05 类，支持 HC-05 蓝牙模块的串口通信，增加串口设置波特率函数

Core/App/Common/serial_port.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "main.h"
+#include "stm32h5xx_hal_uart.h"
 #include <cstdarg>
 #include <cstdint>
 #include <cstring>
@@ -13,23 +14,31 @@ private:
     uint32_t timeout;
     std::unique_ptr<char[]> buffer;
 
+    uint8_t ReadByteForce() {
+        return handle->Instance->RDR;
+    }
+
 public:
-    SerialPort(UART_HandleTypeDef* uart, uint32_t length, uint32_t timeout)
-        : handle(uart), timeout(timeout), buffer(std::make_unique<char[]>(length)) {}
+    SerialPort(UART_HandleTypeDef* uart, uint32_t baudRate, uint32_t length, uint32_t timeout)
+        : handle(uart), timeout(timeout), buffer(std::make_unique<char[]>(length)) {
+        SetBaudRate(baudRate);
+    }
 
     ~SerialPort() = default;
 
-    uint8_t ReadByte() {
-        return handle->Instance->RDR;
+    void SetBaudRate(uint32_t baudRate) {
+        HAL_UART_DeInit(handle);
+        handle->Init.BaudRate = baudRate;
+        HAL_UART_Init(handle);
     }
 
     std::string ReadLine() {
         std::string result;
         result.reserve(128);
         char c;
-        ReadByte();
+        ReadByteForce();
         while (true) {
-            auto r =  HAL_UART_Receive(handle, reinterpret_cast<uint8_t*>(&c), sizeof(c), timeout);
+            auto r = HAL_UART_Receive(handle, reinterpret_cast<uint8_t*>(&c), sizeof(c), timeout);
             if (r != HAL_OK) {
                 throw std::runtime_error("UART receive error");
             }