topic Re: lpi2c freeRTOS transmission errors in i.MX Processors

lpi2c freeRTOS transmission errors

tbtbtbt — Tue, 28 Sep 2021 06:24:21 GMT

Hello,

I used the freertos_lpi2c demo app to get rt 1020 board communicating with arduino uno. I transferred the working driver code into a different project, and now i2c transfers won't work. Following the start bit being sent, SCL toggles forever and no data transfer is initiated.

I think this might be a timing problem, but I've made sure the i2c clock is configured the same in the working project and the new project. Could timing issues cause this to happen? And if not, what other sorts of errors could cause this? I'm not sure what to try next, I appreciate any help.

Thank you.

Re: lpi2c freeRTOS transmission errors

tbtbtbt — Tue, 28 Sep 2021 18:27:38 GMT

I realized that even though I had the pin configurations set correctly, it wasn't updating the pin_mux.c file when I pressed "Update Code," so I had to do it manually. Not sure why it wasn't updating the code correctly, but now working fine.

Re: lpi2c freeRTOS transmission errors

jeremyzhou — Wed, 29 Sep 2021 01:44:54 GMT

Hi,
I'm glad to hear the issue was resolved, regarding the code update issue, you can try to update the MCUXpresso IDE to fix it.
BR,
Jeremy