refactor: 精简R8裸机工程并补强调试链路

App/tcp_client.c

@@ -43,6 +43,13 @@ static err_t tcp_client_on_recv(void *arg, struct tcp_pcb *pcb, struct pbuf *p,
     }
 
     if (p == NULL) {
+        tcp_arg(pcb, NULL);
+        tcp_recv(pcb, NULL);
+        tcp_sent(pcb, NULL);
+        tcp_err(pcb, NULL);
+        if (tcp_close(pcb) != ERR_OK) {
+            tcp_abort(pcb);
+        }
         ctx->pcb = NULL;
         ctx->status.state = TCP_CLIENT_STATE_DISCONNECTED;
         ctx->next_retry_ms = HAL_GetTick() + ctx->config.reconnect_interval_ms;

App/tcp_server.c

@@ -40,6 +40,13 @@ static err_t tcp_server_on_recv(void *arg, struct tcp_pcb *pcb, struct pbuf *p,
     }
 
     if (p == NULL) {
+        tcp_arg(pcb, NULL);
+        tcp_recv(pcb, NULL);
+        tcp_sent(pcb, NULL);
+        tcp_err(pcb, NULL);
+        if (tcp_close(pcb) != ERR_OK) {
+            tcp_abort(pcb);
+        }
         ctx->client_pcb = NULL;
         ctx->status.state = TCP_SERVER_STATE_LISTENING;
         return ERR_OK;

App/uart_trans.c

@@ -52,6 +52,8 @@ static int apply_uart_config(uart_channel_t channel)
 {
     uart_channel_ctx_t *ctx = &g_channels[channel];
     UART_HandleTypeDef *huart = ctx->huart;
+    uint32_t word_length;
+    uint32_t parity;
 
     if (huart == NULL) {
         return -1;
@@ -63,21 +65,29 @@ static int apply_uart_config(uart_channel_t channel)
     }
 
     huart->Init.BaudRate = ctx->config.baudrate;
-    huart->Init.WordLength = (ctx->config.data_bits == 9u) ? UART_WORDLENGTH_9B : UART_WORDLENGTH_8B;
     huart->Init.StopBits = (ctx->config.stop_bits == 2u) ? UART_STOPBITS_2 : UART_STOPBITS_1;
 
     switch (ctx->config.parity) {
     case 1:
-        huart->Init.Parity = UART_PARITY_ODD;
+        parity = UART_PARITY_ODD;
         break;
     case 2:
-        huart->Init.Parity = UART_PARITY_EVEN;
+        parity = UART_PARITY_EVEN;
         break;
     default:
-        huart->Init.Parity = UART_PARITY_NONE;
+        parity = UART_PARITY_NONE;
         break;
     }
 
+    if (parity == UART_PARITY_NONE) {
+        word_length = (ctx->config.data_bits == 9u) ? UART_WORDLENGTH_9B : UART_WORDLENGTH_8B;
+    } else {
+        word_length = (ctx->config.data_bits >= 8u) ? UART_WORDLENGTH_9B : UART_WORDLENGTH_8B;
+    }
+
+    huart->Init.WordLength = word_length;
+    huart->Init.Parity = parity;
+
     return (HAL_UART_Init(huart) == HAL_OK) ? 0 : -1;
 }