From f18a0409a1dbb058f3ba84d5567b302c95e02c6c Mon Sep 17 00:00:00 2001
From: aleks <aleks@espressif.com>
Date: Tue, 21 Feb 2023 17:20:36 +0100
Subject: [PATCH] fix master parity flush buffer on fail

---
 freemodbus/port/portserial_m.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/freemodbus/port/portserial_m.c b/freemodbus/port/portserial_m.c
index 7fbe0ac..d27584d 100644
--- a/freemodbus/port/portserial_m.c
+++ b/freemodbus/port/portserial_m.c
@@ -240,10 +240,14 @@ static void vUartTask(void* pvParameters)
                 //Event of UART parity check error
                 case UART_PARITY_ERR:
                     ESP_LOGD(TAG, "uart parity error.");
+                    xQueueReset(xMbUartQueue);
+                    uart_flush_input(ucUartNumber);
                     break;
                 //Event of UART frame error
                 case UART_FRAME_ERR:
                     ESP_LOGD(TAG, "uart frame error.");
+                    xQueueReset(xMbUartQueue);
+                    uart_flush_input(ucUartNumber);
                     break;
                 default:
                     ESP_LOGD(TAG, "uart event type: %d.", xEvent.type);