Hi,
I'm trying to use LPUART in interrupt mode (not async), but I can't get it to work.
I'm using the sample in NCS, which works when using async.
When I uncomment the line in prj.conf to activate the interrupt mode, the power consumption goes way up (around +1 mA).
What am I doing wrong to work with LPUART in interrupt mode ?
Regards
Giuliano
Hello, I tested the LPUART sample with interrupt NCS 2.0.0, nrf5340dk_nrf5340_cpuapp and CONFIG_NRF_SW_LPUART_INT_DRIVEN=y. I measured a current of 94.3 uA, not as low as I expected, but definitely lower than 1 mA. When using the lpuart in async mode, I measured a current of around 94 uA as well.
You can see that the communication happen as expected with 600ms between each transfer.
Here is the sample I used, with build folder attached, so you can compare. I used NCS v2.0.0 and the nRF5340DK v0.11.0. I disabled uart logging and enabled the interrupt driven Kconfig.
Let me know if you get the same result (94uA) or 1mA
Best regards,
Simon
Hello, I tested the LPUART sample with interrupt NCS 2.0.0, nrf5340dk_nrf5340_cpuapp and CONFIG_NRF_SW_LPUART_INT_DRIVEN=y. I measured a current of 94.3 uA, not as low as I expected, but definitely lower than 1 mA. When using the lpuart in async mode, I measured a current of around 94 uA as well.
You can see that the communication happen as expected with 600ms between each transfer.
Here is the sample I used, with build folder attached, so you can compare. I used NCS v2.0.0 and the nRF5340DK v0.11.0. I disabled uart logging and enabled the interrupt driven Kconfig.
Let me know if you get the same result (94uA) or 1mA
Best regards,
Simon
