michallenc opened a new pull request, #19571: URL: https://github.com/apache/nuttx/pull/19571
## Summary The reference manual (section 3.2.1) states the user has to read `GLERR` and `INTERR` registers to clear their bits and release ERR pin after the startup sequence. Error bits are set to 1 after the startup if external power supply is used. Not clearing the bits leads to subsequent read call errors if VBB errors are checked. ## Impact Reading the data after startup doesn't return error for first two calls (one clears `GLERR`, other `INTERR`) anymore. ## Testing With a simple application that reads from the expander. First two reads after the boot failed before the change, the issue is not present anymore. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
