From c3e0e56edc01e00d4d9514b6e706271ad0a1047c Mon Sep 17 00:00:00 2001
From: Michael Keller <github@ike.ch>
Date: Mon, 5 Aug 2019 20:10:00 +1200
Subject: [PATCH] Fixed UART pin definitions for STM32F411. (#8659)

Fixed UART pin definitions for STM32F411.
---
 src/main/drivers/serial_uart_stm32f4xx.c | 28 ++++++++++++++++++++----
 1 file changed, 24 insertions(+), 4 deletions(-)

diff --git a/src/main/drivers/serial_uart_stm32f4xx.c b/src/main/drivers/serial_uart_stm32f4xx.c
index 7f3bd45c86..de1c1d16af 100644
--- a/src/main/drivers/serial_uart_stm32f4xx.c
+++ b/src/main/drivers/serial_uart_stm32f4xx.c
@@ -51,8 +51,16 @@ const uartHardware_t uartHardware[UARTDEV_COUNT] = {
 #ifdef USE_UART1_TX_DMA
         .txDMAStream = DMA2_Stream7,
 #endif
-        .rxPins = { { DEFIO_TAG_E(PA10) }, { DEFIO_TAG_E(PB7) } },
-        .txPins = { { DEFIO_TAG_E(PA9) }, { DEFIO_TAG_E(PB6) } },
+        .rxPins = { { DEFIO_TAG_E(PA10) }, { DEFIO_TAG_E(PB7) }, 
+#if defined (STM32F411xE)
+            { DEFIO_TAG_E(PB3) },
+#endif
+            },
+        .txPins = { { DEFIO_TAG_E(PA9) }, { DEFIO_TAG_E(PB6) },
+#if defined (STM32F411xE)
+            { DEFIO_TAG_E(PA15) },
+#endif
+            },
         .af = GPIO_AF_USART1,
         .rcc = RCC_APB2(USART1),
         .irqn = USART1_IRQn,
@@ -156,8 +164,20 @@ const uartHardware_t uartHardware[UARTDEV_COUNT] = {
 #ifdef USE_UART6_TX_DMA
         .txDMAStream = DMA2_Stream6,
 #endif
-        .rxPins = { { DEFIO_TAG_E(PC7) }, { DEFIO_TAG_E(PG9) } },
-        .txPins = { { DEFIO_TAG_E(PC6) }, { DEFIO_TAG_E(PG14) } },
+        .rxPins = { { DEFIO_TAG_E(PC7) },
+#if defined (STM32F411xE)
+            { DEFIO_TAG_E(PA12) },
+#else
+            { DEFIO_TAG_E(PG9) },
+#endif
+            },
+        .txPins = { { DEFIO_TAG_E(PC6) },
+#if defined (STM32F411xE)
+            { DEFIO_TAG_E(PA11) },
+#else
+            { DEFIO_TAG_E(PG14) },
+#endif
+            },
         .af = GPIO_AF_USART6,
         .rcc = RCC_APB2(USART6),
         .irqn = USART6_IRQn,