"Undefined Symbol" error when compiling , nrf51822 SDK12.3.0

Question

Hi, I encountered the following error in keil v5.12.0.0: 
 
 linking... .\_build
rf51422_xxac.axf: Error: L6218E: Undefined symbol nrf_drv_gpiote_in_event_enable (referred from main.o). .\_build
rf51422_xxac.axf: Error: L6218E: Undefined symbol nrf_drv_gpiote_in_init (referred from main.o). .\_build
rf51422_xxac.axf: Error: L6218E: Undefined symbol nrf_drv_gpiote_init (referred from main.o). Not enough information to list image symbols. Finished: 1 information, 0 warning and 3 error messages. ".\_build
rf51422_xxac.axf" - 3 Error(s), 2 Warning(s). 
 I have included nrf_drv_gpiote.h 
 I added nrf_drv_gpiote.c 
 
 however I did not define anything relevant to use the GPIOTE, I don't know what they are, and I don't know where to find them. I know there is some config file in nrf52 sdk, but not the case with nrf51 sdk 12. 
 
 Can you make a list of possibilities regarding where I could have overlooked? For example missing marco definition etc.

MartinBL · Accepted Answer

Hi, You might have forgotten to enable GPIOTE in your sdk_config.h file. Make sure to define GPIOTE_ENABLED as 1. It could be that your sdk_config.h file lacks all GPIOTE relevant defines though, in that case please try to copy paste and add this: //========================================================== // GPIOTE_ENABLED - nrf_drv_gpiote - GPIOTE peripheral driver //========================================================== #ifndef GPIOTE_ENABLED #define GPIOTE_ENABLED 1 #endif #if GPIOTE_ENABLED // GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS - Number of lower power input pins #ifndef GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS #define GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS 1 #endif // GPIOTE_CONFIG_IRQ_PRIORITY - Interrupt priority // Priorities 0,2 (nRF51) and 0,1,4,5 (nRF52) are reserved for SoftDevice // <0=> 0 (highest) // <1=> 1 // <2=> 2 // <3=> 3 #ifndef GPIOTE_CONFIG_IRQ_PRIORITY #define GPIOTE_CONFIG_IRQ_PRIORITY 3 #endif // GPIOTE_CONFIG_LOG_ENABLED - Enables logging in the module. //========================================================== #ifndef GPIOTE_CONFIG_LOG_ENABLED #define GPIOTE_CONFIG_LOG_ENABLED 0 #endif #if GPIOTE_CONFIG_LOG_ENABLED // GPIOTE_CONFIG_LOG_LEVEL - Default Severity level // <0=> Off // <1=> Error // <2=> Warning // <3=> Info // <4=> Debug #ifndef GPIOTE_CONFIG_LOG_LEVEL #define GPIOTE_CONFIG_LOG_LEVEL 3 #endif // GPIOTE_CONFIG_INFO_COLOR - ANSI escape code prefix. // <0=> Default // <1=> Black // <2=> Red // <3=> Green // <4=> Yellow // <5=> Blue // <6=> Magenta // <7=> Cyan // <8=> White #ifndef GPIOTE_CONFIG_INFO_COLOR #define GPIOTE_CONFIG_INFO_COLOR 0 #endif // GPIOTE_CONFIG_DEBUG_COLOR - ANSI escape code prefix. // <0=> Default // <1=> Black // <2=> Red // <3=> Green // <4=> Yellow // <5=> Blue // <6=> Magenta // <7=> Cyan // <8=> White #ifndef GPIOTE_CONFIG_DEBUG_COLOR #define GPIOTE_CONFIG_DEBUG_COLOR 0 #endif #endif //GPIOTE_CONFIG_LOG_ENABLED // #endif //GPIOTE_ENABLED //

"Undefined Symbol" error when compiling , nrf51822 SDK12.3.0

Top Replies