Hello @all,
we have the problem that the AWR294x checklist wants an additional 10k Pullup on ball T15.
See below.
But we have the requirement for the LP8774x that at startup a 560Ohm Pulldown is required at the moment to disable the watchdog.
LP8774x wants to see less than 0,1Volt to detect a low signal at startup to disable the watchdog. But afterwards PIN4 gets to a CS which is normally high.
The problem is also if we get a reset from the PMIC the system must always start up again. So in my opinion we cannot remove the 560Ohm pulldown.
Whats your suggestion:
- 10k external pullup with internal pullup in parallel (what internal pullup resistance is used?)
- xxxOhm pulldown that under 0,1V is detected by the PMIC
Unfortunately we have not much time. And must go into qualification for the product. Sorry for that.
Thank you very much in advance.
Regards,
Frank
