Hi,
Our company has designed a board based on imx8mp.
Everything goes well,But once pressed a reset key,the system hangs.
It can not reboot.Can anyone tell me how to debug this issue.
已解决！ 转到解答。
I would suggest you submit a ticket to review your schematic.
https://www.nxp.com/support/support:SUPPORTHOME (--> Submit a ticket)
在原帖中查看解决方案
This is the i.MX 8M Plus Hardware Developer’s Guide
Please read the Table 5. Reset and ON/OFF recommendations
Dear Jimmy,
Our board is designed based on the NXP official reference board.
So do you have any other ideas to debug it?
Have you measure the pin signal?
Yes,
We did have.The reset signal goes low->High to PMIC pin PMIC_RST_B,and PMIC pin POR_B goes low->High to IMX8MP pin POR_B
