topic Re: FS85 Debug mode: dumb mode possible? in Power Management

FS85 Debug mode: dumb mode possible?

AndreasStolze — Mon, 15 Jan 2024 15:26:32 GMT

Hi,

as far as I understand the FS85 data sheet, in debug mode the FS85 will not turn on its regulators.

I guess if you use the KITFS85SKTEVM you can create a dummy OTP config and work with that (turning on the regulators).

However, if the FS85 is in a custom circuit, is there a way to just turn it on with its OTP configured regulator voltages? No watchdog or soever?
This would be very helpful for the board bring-up.

Thanks
Andreas

Re: FS85 Debug mode: dumb mode possible?

guoweisun — Tue, 16 Jan 2024 01:51:43 GMT

You can see below debug flow chart, in debug mode if you do the OTP or emulation to turn on regulators, then regulators will power up according OTP/emulation configuration :

Re: FS85 Debug mode: dumb mode possible?

AndreasStolze — Tue, 16 Jan 2024 12:20:55 GMT

Thanks for clearing that up @guoweisun

Apparently we didn't do the right steps for debug mode. But now it works!