SPIM not working in NRF52832?

RE: SPIM not working in NRF52832?

Jørgen Holmefjord — Mon, 18 Dec 2017 13:30:36 GMT

Ok, just checking as it does not show in your code, and you wrote "not getting any interrupt on NRF_SPIM_EVENT_ENDRX (if I enable it with nrf_spim_int_enable(SPI_MODULE, NRF_SPIM_INT_ENDTX_MASK)).", which seems like you only try to enable interrupt for ENDTX again, but maybe this was a typo? Have you checked the SPI bus using a logic analyzer, to see if anything is transferred to/from the external device?

RE: SPIM not working in NRF52832?

abhiarora — Mon, 18 Dec 2017 13:20:08 GMT

Yes. I have setup UART and printf are working in interrupts and other places. Yes. I have tried to enable interrupt for NRF_SPIM_EVENT_ENDRX but it is not getting triggered. NRF_SPIM_EVENT_ENDTX is getting triggered only.

RE: SPIM not working in NRF52832?

Jørgen Holmefjord — Mon, 18 Dec 2017 12:25:08 GMT

Have you setup UART and retargeted the stdio functions? If not, call to printf() might lead to a hardfault. Did you try enable interrupt for NRF_SPIM_EVENT_ENDRX using nrf_spim_int_enable(SPI_MODULE, NRF_SPIM_INT_ENDRX_MASK)?

RE: SPIM not working in NRF52832?

abhiarora — Sun, 17 Dec 2017 13:25:01 GMT

My code is inspired from nrf5 SDK.

RE: SPIM not working in NRF52832?

endnode — Sun, 17 Dec 2017 13:06:26 GMT

One would ask why you don't use drivers from nRF5 SDK or (if you really don't like them) don't take the inspiration from there? To your code: first of all I would throw away all print-outs from interrupt handlers. They might work or not. If you really need some trace about interrupt handler being triggered then simply toggle some GPIO line HIGH/LOW and look with oscilloscope/logical analyzer. By that and going step by step you should be able to put the things back together.