Keep PinMap_UART_RX/TX pins?

Author: thinkyhead

buildroot/share/PlatformIO/variants/MARLIN_G0B1RE/PeripheralPins.c

@@ -218,6 +218,7 @@ WEAK const PinMap PinMap_UART_TX[] = {
   {PC_12,      USART5,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_USART5)},
   {PD_3,       USART5,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_USART5)},
   {PD_5,       USART2,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_USART2)},
+  {PD_8,       USART3,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART3)},
   {PF_2,       LPUART2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_LPUART2)},
   {NC,         NP,      0}
 };
@@ -252,6 +253,7 @@ WEAK const PinMap PinMap_UART_RX[] = {
   {PC_11_ALT1, USART4,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_USART4)},
   {PD_2,       USART5,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_USART5)},
   {PD_6,       USART2,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_USART2)},
+  {PD_9,       USART3,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART3)},
   {NC,         NP,      0}
 };
 #endif