SPI DFU Bootloader

RE: SPI DFU Bootloader

klockhart — Tue, 15 May 2018 19:47:39 GMT

I've changed a few things since posting this, so there may be more complexity, but it seems like the crux of this issue was not enabling deferred logging. Presumably, printing out the logs was taking long enough/at the right time, to block the SPI from seeing the incoming signals from the master to allow it to send out data. Setting NRF_LOG_DEFERRED in sdk_config.h enabled the SPI slave to start sending out data successfully.

RE: SPI DFU Bootloader

Edvin — Fri, 11 May 2018 07:39:52 GMT

Also, from where you init the SPI, do you check whether it returns NRF_SUCCESS? (nrf_drv_spis_init() returns NRF_SUCCESS?)

RE: SPI DFU Bootloader

Edvin — Fri, 11 May 2018 07:37:17 GMT

Hello,

I am terribly sorry for the late reply.

I can't see something obviously wrong with your setup.

Are you getting any events at all?

Have you tried to add:

if (event.evt_type == NRF_DRV_SPIS_XFER_DONE)
{
    ...
}
else
{
    NRF_LOG_DEBUG("SPI error, event %d", event.evt_type);
}

Best regards,

Edvin