Correction of pin for the LPS deck. #368

There was a mixup of pin definitions which caused the wrong pin to be read. This in turn caused the interrupt handling task to exit the handling function, when the status register was updated during handing.

src/deck/drivers/src/locodeck.c

@@ -60,17 +60,17 @@
 
 // LOCO deck alternative IRQ and RESET pins(IO_2, IO_3) instead of default (RX1, TX1), leaving UART1 free for use
 #ifdef LOCODECK_USE_ALT_PINS
-    #define GPIO_PIN_IRQ 	GPIO_Pin_5
 	#define GPIO_PIN_RESET 	GPIO_Pin_4
 	#define GPIO_PORT		GPIOB
+  #define GPIO_PIN_IRQ 	  DECK_GPIO_IO2
 	#define EXTI_PortSource EXTI_PortSourceGPIOB
 	#define EXTI_PinSource 	EXTI_PinSource5
 	#define EXTI_LineN 		EXTI_Line5
 	#define EXTI_IRQChannel EXTI9_5_IRQn
 #else
-    #define GPIO_PIN_IRQ 	GPIO_Pin_11
 	#define GPIO_PIN_RESET 	GPIO_Pin_10
 	#define GPIO_PORT		GPIOC
+  #define GPIO_PIN_IRQ 	  DECK_GPIO_RX1
 	#define EXTI_PortSource EXTI_PortSourceGPIOC
 	#define EXTI_PinSource 	EXTI_PinSource11
 	#define EXTI_LineN 		EXTI_Line11
@@ -391,13 +391,7 @@ static void dwm1000Init(DeckInfo *info)
 
   spiBegin();
 
-  // Init IRQ input
-  bzero(&GPIO_InitStructure, sizeof(GPIO_InitStructure));
-  GPIO_InitStructure.GPIO_Pin = GPIO_PIN_IRQ;
-  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
-  //GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
-  GPIO_Init(GPIO_PORT, &GPIO_InitStructure);
-
+  // Set up interrupt
   SYSCFG_EXTILineConfig(EXTI_PortSource, EXTI_PinSource);
 
   EXTI_InitStructure.EXTI_Line = EXTI_LineN;
@@ -413,8 +407,9 @@ static void dwm1000Init(DeckInfo *info)
   GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
   GPIO_Init(GPIO_PORT, &GPIO_InitStructure);
 
-  // Init CS pin
+  // Init pins
   pinMode(CS_PIN, OUTPUT);
+  pinMode(GPIO_PIN_IRQ, INPUT);
 
   // Reset the DW1000 chip
   GPIO_WriteBit(GPIO_PORT, GPIO_PIN_RESET, 0);