When I change the communication port about SPI of NRF52832, the MCU would be reset

RE: When I change the communication port about SPI of NRF52832, the MCU would be reset

chan_Yong — Wed, 14 Mar 2018 05:59:56 GMT

thanks for your help!

I see,I read the data sheet about nrf58232 and find the problem.the same alse your said.

thanks again!!

RE: When I change the communication port about SPI of NRF52832, the MCU would be reset

hmolesworth — Wed, 14 Mar 2018 04:42:25 GMT

The examples can use any port pin, but some pins are not available unless they are released from other dedicated functions, such as NFC. You don't need to know or do anything about NFC, just ensure the pins are GPIO by defining CONFIG_NFCT_PINS_AS_GPIOS. It is used in SystemInit() - search for that function in your code and you will see what I mean. Pins 9 and 10 default to NFC, not GPIO

RE: When I change the communication port about SPI of NRF52832, the MCU would be reset

chan_Yong — Wed, 14 Mar 2018 02:13:36 GMT

My test code was modified with examples about SPI(nRF5_SDK_14.2.0\examples\peripheral\spi).Is it also important to note the configuration of NFC?

Thank you for your reply!

RE: When I change the communication port about SPI of NRF52832, the MCU would be reset

hmolesworth — Wed, 14 Mar 2018 01:53:07 GMT

When using GPIO pins 9 and 10 you might start by reading this post - in brief CONFIG_NFCT_PINS_AS_GPIOS is required to be defined - preferably at project level - to stop the NFC circuits reserving the GPIO pins. This may not be the only issue, of course ..