fix: USART IRQ prio for external module

Should fix missing bytes in CRSF telemetry stream.

Author: raphaelcoeffic

radio/src/boards/generic_stm32/module_ports.cpp

@@ -29,7 +29,7 @@
 
 #if defined(INTMODULE_USART)
 
-#define INTMODULE_USART_IRQ_PRIORITY 6
+#define INTMODULE_USART_IRQ_PRIORITY 5
 
 static const stm32_usart_t intmoduleUSART = {
   .USARTx = INTMODULE_USART,
@@ -138,7 +138,7 @@ DEFINE_STM32_SERIAL_PORT(ExternalModule, extmoduleUSART, INTMODULE_FIFO_SIZE, 0)
 DEFINE_STM32_SOFTSERIAL_PORT(ExternalModule, extmoduleTimer);
 #endif
 
-#define TELEMETRY_USART_IRQ_PRIORITY 5
+#define TELEMETRY_USART_IRQ_PRIORITY 0
 #define TELEMETRY_DMA_IRQ_PRIORITY   0
 
 static void _set_sport_input(uint8_t enable)

radio/src/targets/taranis/hal.h

@@ -1752,6 +1752,9 @@
   // #define INTMODULE_DMA                   NULL
   // #define INTMODULE_DMA_CHANNEL           0
   // #define INTMODULE_DMA_STREAM            0
+  #define INTMODULE_RX_DMA                DMA1
+  #define INTMODULE_RX_DMA_STREAM         LL_DMA_STREAM_1
+  #define INTMODULE_RX_DMA_CHANNEL        LL_DMA_CHANNEL_4
 #else
   #define INTMODULE_PULSES
   #define INTMODULE_RCC_AHB1Periph      (RCC_AHB1Periph_GPIOA | RCC_AHB1Periph_GPIOD | RCC_AHB1Periph_DMA2)

radio/src/targets/taranis/lcd_driver_spi.cpp

@@ -108,6 +108,7 @@ void lcdHardwareInit()
 #endif
   LCD_DMA_Stream->FCR = 0x05; // DMA_SxFCR_DMDIS | DMA_SxFCR_FTH_0;
 
+  NVIC_SetPriority(LCD_DMA_Stream_IRQn, 7);
   NVIC_EnableIRQ(LCD_DMA_Stream_IRQn);
 }