Boot mode Imx8mini

[idom]

Hi 

I custome board with IMX8mini.

I have two issues:

1. When boot mode0=0 and boot_mode1=0 the boot sequence does not start,

2. When Boot_mode0=1 or 0 and Boot_mode1=1  boot seqeunce start and finished but only when the UART-USB DBG connected to the terminal.

[idom]

Hello Igor

With my custom board I have flashed with UUU the original NXP's Android kernel (the NXP default U boot) port(without making any changes to it). So, I suppose that BT_FUSE_SEL should be already programmed similar to the NXP EVM ?

[igorpadykov]

Hi Ido

boot mode0=0 and boot_mode1=0 selects boot from fuses, which probably not programmed.

For details one can look at sect.6.1.2.3 Boot From Fuses mode (BOOT_MODE[1:0] = 00b)

i.MX 8M Mini Applications Processor Reference Manual

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------