topic Re: imx93 boot mode pins setting issue. in i.MX Processors

imx93 boot mode pins setting issue.

bighero77 — Wed, 21 May 2025 14:10:15 GMT

Hi, guys,

my own board would not boot at all. the following is from reference pdf.

I find the mode1 pin is different from other 3 pin.
if we set DIP SW as 0000. the pin voltage level the the for pin is:
mode3 mode2 mode1 mode0 is:

low low high low. (voletage level)

my description is OK?

and second issue. to simple the design. and fix the board boot from emmc

0000.

I pull down all the for pin(mode3 to mode0) to low level volatage with 100K.

after one second, I switch the mode0 pin to UART purpose. (boot procedure finished). I wish I would see the uart logs and control the board.
but I see nothing.

what happend?

would you please help me ?

Re: imx93 boot mode pins setting issue.

JorgeCas — Thu, 22 May 2025 17:54:04 GMT

Hello,

Are you using the same boot mode switches configuration as is in EVK? If not please share your configuration.

You need to confirm the voltage levels in your pins and compare with reference manual boot modes and verify that you are using the correct boot source for your design.

If the boot source is correctly selected, please verify that you have a bootable image in the selected boot source to see the logs.

Also check the COMx port used (Cortex-A/Cortex-M).

Best regards.

Re: imx93 boot mode pins setting issue.

bighero77 — Tue, 03 Jun 2025 02:53:58 GMT

thanks.

I will follow your suggestion.