From f7569538199ccef5afa671cfd0db7c24515a14d2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=81ukasz=20Duda?= <lukasz.duda@nordicsemi.no>
Date: Mon, 25 Nov 2019 19:44:22 +0100
Subject: [PATCH] [nrf528xx] handle overrun error on high baudrates correctly
 (#4350)

---
 examples/platforms/nrf528xx/nrf52833/platform-config.h | 2 +-
 examples/platforms/nrf528xx/nrf52840/platform-config.h | 2 +-
 examples/platforms/nrf528xx/src/uart.c                 | 2 --
 3 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/examples/platforms/nrf528xx/nrf52833/platform-config.h b/examples/platforms/nrf528xx/nrf52833/platform-config.h
index 182c8cc29..8dd54f44f 100644
--- a/examples/platforms/nrf528xx/nrf52833/platform-config.h
+++ b/examples/platforms/nrf528xx/nrf52833/platform-config.h
@@ -137,7 +137,7 @@
  *
  */
 #ifndef UART_RX_BUFFER_SIZE
-#define UART_RX_BUFFER_SIZE 256
+#define UART_RX_BUFFER_SIZE 512
 #endif
 
 /**
diff --git a/examples/platforms/nrf528xx/nrf52840/platform-config.h b/examples/platforms/nrf528xx/nrf52840/platform-config.h
index 2c03707b1..5eb8a4706 100644
--- a/examples/platforms/nrf528xx/nrf52840/platform-config.h
+++ b/examples/platforms/nrf528xx/nrf52840/platform-config.h
@@ -137,7 +137,7 @@
  *
  */
 #ifndef UART_RX_BUFFER_SIZE
-#define UART_RX_BUFFER_SIZE 256
+#define UART_RX_BUFFER_SIZE 512
 #endif
 
 /**
diff --git a/examples/platforms/nrf528xx/src/uart.c b/examples/platforms/nrf528xx/src/uart.c
index c9b1ff59a..e4c3131e5 100644
--- a/examples/platforms/nrf528xx/src/uart.c
+++ b/examples/platforms/nrf528xx/src/uart.c
@@ -284,9 +284,7 @@ void UARTE0_UART0_IRQHandler(void)
     // Check if any error has been detected.
     if (nrf_uart_event_check(UART_INSTANCE, NRF_UART_EVENT_ERROR))
     {
-        // Clear error event and ignore erronous byte in RXD register.
         nrf_uart_event_clear(UART_INSTANCE, NRF_UART_EVENT_ERROR);
-        nrf_uart_event_clear(UART_INSTANCE, NRF_UART_EVENT_RXDRDY);
     }
     else if (nrf_uart_event_check(UART_INSTANCE, NRF_UART_EVENT_RXDRDY))
     {