nrf52832 reset pin remap，I want to know which Pin is available？

RE: nrf52832 reset pin remap，I want to know which Pin is available？

aning — Wed, 05 Jun 2019 02:31:21 GMT

Oh,I see.Thanks again！

RE: nrf52832 reset pin remap，I want to know which Pin is available？

RK — Wed, 05 Jun 2019 02:27:21 GMT

no - I just told you - it's P0.21, that's it, the only one you can use, there is no other pin available.

RE: nrf52832 reset pin remap，I want to know which Pin is available？

aning — Wed, 05 Jun 2019 02:26:20 GMT

Thank you！

In fact i want to use 26 as a reset and CONFIG_GPIO_AS_PINRESET also defined in MDK。

I can read PSELRESET[0] and PSELRESET[1] registers value both are 0x1a.

But it do not work when press a key that connect pin 26.The other end of the key is connected to GND.(NO external Pull up)

Can it be achieved?

#if defined (CONFIG_GPIO_AS_PINRESET)
if (((NRF_UICR->PSELRESET[0] & UICR_PSELRESET_CONNECT_Msk) != (UICR_PSELRESET_CONNECT_Connected << UICR_PSELRESET_CONNECT_Pos)) ||
((NRF_UICR->PSELRESET[1] & UICR_PSELRESET_CONNECT_Msk) != (UICR_PSELRESET_CONNECT_Connected << UICR_PSELRESET_CONNECT_Pos))){
NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
NRF_UICR->PSELRESET[0] = 26;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
NRF_UICR->PSELRESET[1] = 26;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
NVIC_SystemReset();
}
#endif

RE: nrf52832 reset pin remap，I want to know which Pin is available？

RK — Wed, 05 Jun 2019 02:02:35 GMT

it's in the pin assignments (and you can work it out from the fact only one value is given for the register value too). P0.21, that's it.