Pin mapping change automatically even though any change under AVAS EVK

[decemberdream]

Hello,

I have a trouble when I tried to change AMP I2C adreess on AVAS EVK which is based on AEK-MCU-C1MLIT1(https://www.st.com/en/solutions-reference-designs/sl-ssasf011101v1.html ) like the below.

1. In Allocation pin page, I just do "Delocation" and then "Allocation" without any action.

2. After Compile and download, the Amp doesn't work even though it worked very well before.

3. When I checked pinmap, the pin map was changed.

  - Before

- After(Only Blue parts are same with before....)

I don't know why the pin map is changed. How to avoid this??

Thanks,

[Max VIZZINI · Accepted solution]

Hi,

What you experience is normal because the automatic allocation will look for available pins and allocate them randomly.

If you do not want to change the wiring, then you have to manually move the pin copying EXACT name and pin configuration.

If you right click a pin in the pinmap, you can deallocate it and allocate to a new functionality.

Be careful NOT to use the suggested pin name but to use the SAME one as it was before otherwise you will have to change the code.

Same thing applies for the configuration, for example strong drive pins.

Best Regards,

AutoDevKit Team

P.S. There is also a more integrated board for AVAS named AEK-AUD-C1D9031 with 2 audio amps (stereo)

Check links below:

https://www.st.com/en/evaluation-tools/aek-aud-c1d9031.html 

https://www.st.com/en/evaluation-tools/aekd-stereoavas.html