Allow DMA remapping on Robus L0

Author: nicolas-rabault

network/robus_network/HAL/STM32L0/robus_hal.c

@@ -120,6 +120,7 @@ void RobusHAL_ComInit(uint32_t Baudrate)
     ROBUS_DMA_CLOCK_ENABLE();
 
     LL_DMA_SetPeriphRequest(ROBUS_DMA, ROBUS_DMA_CHANNEL, ROBUS_DMA_REQUEST);
+    LL_SYSCFG_SetRemapDMA_USART(ROBUS_DMA_REMAP);
     LL_DMA_SetDataTransferDirection(ROBUS_DMA, ROBUS_DMA_CHANNEL, LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
     LL_DMA_SetChannelPriorityLevel(ROBUS_DMA, ROBUS_DMA_CHANNEL, LL_DMA_PRIORITY_LOW);
     LL_DMA_SetMode(ROBUS_DMA, ROBUS_DMA_CHANNEL, LL_DMA_MODE_NORMAL);

network/robus_network/HAL/STM32L0/robus_hal_config.h

@@ -136,6 +136,9 @@
 #ifndef ROBUS_DMA_REQUEST
     #define ROBUS_DMA_REQUEST LL_DMA_REQUEST_3
 #endif
+#ifndef ROBUS_DMA_REMAP
+    #define ROBUS_DMA_REMAP LL_SYSCFG_USART1TX_RMP_DMA1CH2
+#endif
 
 /*******************************************************************************
  * COM TIMEOUT CONFIG