Part Number:AM5728
Hello,
I just received my board prototype including an AM5728. I think that I have an issue with the reset output of the CPU following power up.
The AM5728 rstoutn is connected to the PMIC (on NRESWARM) and the PMIC RESET OUT is connected to the PORz of the CPU. When I power up the board, The PMIC reset out (in blue) rise up after few ms, the rstout of the CPU stay low during ~2ms and rise up. That seems to works fine, but few ms after the CPU send a warm reset (on the rstout pin) to the PMIC which reset after ~3ms. That reset the CPU and so on... This sequence starts again and again indefinitivly
Could you help me to figure out why the CPU send this warm reset (watchdog, boot failed...)?
CH1 (yellow) : AM5728 RSTOUTn (F23)
CH2 (blue): PMIC RESET_OUT (G6)
Thank you
Sylvain