ISR Error in Asynchronous Uart RX/TX Crashing Zephyr when using Bluetooth (ncs v1.9.1)

RE: ISR Error in Asynchronous Uart RX/TX Crashing Zephyr when using Bluetooth (ncs v1.9.1)

Einarh — Fri, 17 Jun 2022 10:36:14 GMT

Yes please create a new ticket if you are having a different issue

RE: ISR Error in Asynchronous Uart RX/TX Crashing Zephyr when using Bluetooth (ncs v1.9.1)

Kriki — Fri, 17 Jun 2022 10:16:17 GMT

Hi,
So i implemented the UARTE Driver but i cant get to TX/RX anything it crashes when it tries to create the TXEND Event.

Should i create a new Ticket for this Problem considering that this is a new Problem.
Thank you for your Help

Best Regards,
Nick

RE: ISR Error in Asynchronous Uart RX/TX Crashing Zephyr when using Bluetooth (ncs v1.9.1)

Einarh — Wed, 15 Jun 2022 13:55:49 GMT

Not exactly a sample, but the modem trace module uses the UARTE driver.

Hope that helps,

Einar

RE: ISR Error in Asynchronous Uart RX/TX Crashing Zephyr when using Bluetooth (ncs v1.9.1)

Kriki — Wed, 15 Jun 2022 12:18:47 GMT

Hello Einar,

I will then have to use the UARTE Driver.
Do you have any Examples using the Driver ?

Best Regards,

Nick

RE: ISR Error in Asynchronous Uart RX/TX Crashing Zephyr when using Bluetooth (ncs v1.9.1)

Einarh — Tue, 14 Jun 2022 13:06:03 GMT

Using UART and BLE simultaneously on an nRF52 is problematic because your UART functions will get interrupted by high priority BLE tasks.

To get around this I'd recommend using the UARTE driver, which has EasyDMA support, letting you read/write directly to/from RAM:

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fps_nrf52840%2Fuarte.html

http://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrfx/drivers/uarte/driver.html

Another alternative is using an nRF53, which can run Bluetooth on a separate core.

Best regards,

Einar