Crash on nrf_queue_push() when using the TWI MNGR

RE: Crash on nrf_queue_push() when using the TWI MNGR

Susheel Nuguru — Thu, 26 Mar 2020 15:44:17 GMT

Sorry for a really late response.

issuing a TWI transaction inside softdevice BLE event handler seems to be not a good idea. Could cause bottlenecks.

I would recommend you to push the TWI transaction onto the app_scheduler instead of running it in the event handler.

RE: Crash on nrf_queue_push() when using the TWI MNGR

cory123 — Tue, 24 Mar 2020 16:44:58 GMT

I'm still having a problem with nrf_queue when using the TWI_MGR. I could use any help I can get at this point. Here are the screen caps of the problem I'm dealing with. These are different levels of the call stack all on the same program failure. Is there a setting in sdk_config.h to adjust the queue?

RE: Crash on nrf_queue_push() when using the TWI MNGR

cory123 — Fri, 20 Mar 2020 16:50:05 GMT

Because I couldn't get TWI_MGR working I have implemented the twi_sensor_pca10040 example, migrating it to NRF52810 hardware. I'm still having trouble getting TWI working with my TMD3702 light sensor. After I call nrf_drv_twi_tx() the program gets stuck on in the (m_xfer_done==false) loop.

What is strange is that when I was using TWI_MGR I could call nrf_twi_mngr_perform() successfully but not nrf_twi_mngr_schedule(). As shown in my post above I believe that has to do with the nrf_queue. I noticed a something about a workaround related to TWI. Could that be related?