Do you have pull-ups on the i2c lines?
Do you have too many pull-ups on the i2c lines?
How long is your i2c bus?
Do you have a stable PSU, and decoupling caps next to your IS31FL3731?
Have you tried someone else's test code to see if it behaves in the same way? It's very easy to kid yourself that you are doing everything right.
Hmm. That's all I can think of for now.
Do you have too many pull-ups on the i2c lines?
How long is your i2c bus?
Do you have a stable PSU, and decoupling caps next to your IS31FL3731?
Have you tried someone else's test code to see if it behaves in the same way? It's very easy to kid yourself that you are doing everything right.
Hmm. That's all I can think of for now.
Statistics: Posted by ame — Thu Jul 24, 2025 5:19 am