Custom IMX8MM based in EVKD4 won't Boot and no Serial output

[Jay_Pineda]

Details:

1. Custom Board based on EVK-DDR4

2. Passed the MScale DDR test and Stress

3. Bootloader build s based on the DDR4 Timing Mscale Tool

4. UUU tool successfully downloaded the boot file to imx8 but no response on UART4 debug

5. All power rain of PMIC BD71847 is confirmed correct. 

6. BootMode[1:0] = 01 ( Serial Download)

No Boot response in terminal 

[riteshmpatel]

Hi @Jay_Pineda,

I hope you are doing well.

Do you see any logs on the UART4 console while flashing the processor in USB Serial Download mode?
If no, have you made all the required changes to change the debug console to UART4 since the default A-core debug console is UART2?

Thanks & Regards,
Ritesh M Patel