Compiling issue due to non declared pin

[HoangYenTran01]

Hii it seems liken the PC3,4,5 is said to be non declared. Is it because I am using the incompatible model., Mind is RAK3172
Documents\Arduino\libraries\STM32duinoLoRaWAN\src\BSP\radio_board_if.c:75:33: error: 'PC3' undeclared here (not in a function); did you mean 'PC_3'?
75 | #define LORAWAN_RFSWITCH_PINS PC3,PC4,PC5
Documents\Arduino\libraries\STM32duinoLoRaWAN\src\BSP\radio_board_if.c:84:70: note: in expansion of macro 'LORAWAN_RFSWITCH_PINS'
84 | static unsigned lorawan_rfswitch_pins[LORAWAN_RFSWITCH_PIN_COUNT] = {LORAWAN_RFSWITCH_PINS};

Documents\Arduino\libraries\STM32duinoLoRaWAN\src\BSP\radio_board_if.c:75:37: error: 'PC4' undeclared here (not in a function); did you mean 'PC_4'?
75 | #define LORAWAN_RFSWITCH_PINS PC3,PC4,PC5

[fpistm]

Hi @HoangYenTran01
Hard to help with those information.
Anyway, the LoraWAN library define a default LORAWAN_RFSWITCH_PINS if it is not defined by the variant selected.
So probably your case, you have to define it for your board.

Arduino_Core_STM32/variants/STM32WLxx/WL54CCU_WL55CCU_WLE4C(8-B-C)U_WLE5C(8-B-C)U/variant_RAK3172_MODULE.h

Lines 148 to 161 in 449839e

	#if defined(ARDUINO_RAK3172T_MODULE)
	#define LORAWAN_BOARD_HAS_TCXO 1U
	#else
	#define LORAWAN_BOARD_HAS_TCXO 0U
	#endif
	#define LORAWAN_BOARD_HAS_DCDC 1U
	#define LORAWAN_TX_CONFIG RBI_CONF_RFO_HP
	#define LORAWAN_RFSWITCH_PINS PB8, PC13
	#define LORAWAN_RFSWITCH_PIN_COUNT 2
	#define LORAWAN_RFSWITCH_OFF_VALUES LOW, LOW
	#define LORAWAN_RFSWITCH_RX_VALUES HIGH, LOW
	#define LORAWAN_RFSWITCH_RFO_LP_VALUES LOW, HIGH
	#define LORAWAN_RFSWITCH_RFO_HP_VALUES LOW, HIGH