sd API for GPREGRET2

[jing]

How to access GPREGRET2 with sd API call?

thanks

jing

[Vidar Berg]

This is an unfortunate miss from our side, the s132 lacks API for setting the GPREGRET2 register. However, it is possible to workaround this by disabling the MWU when you want to access it:

 #define TEST_UNPROTECT_POWER \

NRF_MWU->PREGION[0].SUBS &= ~(MWU_PREGION_SUBS_SR0_Include << MWU_PREGION_SUBS_SR0_Pos)

#define TEST_REPROTECT_POWER \

 NRF_MWU->PREGION[0].SUBS |= (MWU_PREGION_SUBS_SR0_Include << MWU_PREGION_SUBS_SR0_Pos) 

This has already been reported internally.

[Chris]

I have a print statement (via the UART, non interrupt driven, just out the UART register, loop until its done etc so super simple, yes, locks the cpu from much else while printing but quick and dirty)

Print statement never executes.

Comment out the writing to the register and all good. prints fine.