RS485 send: disable RX during tx + drain/clear after (anti-loopback); COM_DEBUG on with RX byte trace

2026-10-09 19:58:51 +08:00
parent 5771fee576
commit 318d4c60f4
3 changed files with 18 additions and 1 deletions
@@ -463,6 +463,11 @@ void command_process(void) {
        int byte = rs485_rx_get();
        if (byte < 0) break;

+#if COM_DEBUG == CFG_ENABLE
+        /* 调试：打印 RS485 收到的每个原始字节 */
+        printf("[RX] %02X\r\n", (uint8_t)byte);
+#endif
+
        if (cmd_len == 0) {
            if ((uint8_t)byte == PROTOCOL_PACKAGE_HEADER) {
                cmd_buf[cmd_len++] = (uint8_t)byte;