U-boot flashing using JTAG on 8MNANOLPD4-EVK

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U-boot flashing using JTAG on 8MNANOLPD4-EVK

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Sal2020
Contributor II

I am working on (8MNANOLPD4-EVK) based custom board.

Trying to boot imx8 nano with u-boot & kernel-Setting from Norflash and root filesystem in eMMC.

How to I flash u-boot using JTAG interface? And
For that, which JTAG emulator I can use?

 

If there are any steps or guide available to do the same is really helpful.

Best regards,

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Sal2020
Contributor II

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b45499
NXP TechSupport
NXP TechSupport

Do not use the JTAG to download, we support the usb download mode. You can use the uuu tool we supply.

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Sal2020
Contributor II

Thank you for the feedback
"Do not use the JTAG to downloadWhy?
But this method is not productive for end of line products.
we will soon produce big quantity with (MIMX8MN6DVTJZAA) and we need JTAG for first flashing of bootloader on pcb customer (in END of line).

in my pcb customer I need the USB interface for other purposes (for example modem, GPS, keyboard ..etc).

If there are any steps or guide available to do the same is really helpful.

best regards

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b45499
NXP TechSupport
NXP TechSupport
We do not supply the tool for the JTAG download and the download speed is low, images are large. So we not not have this design and do not recommend customer to use this design. Here recommend you to use a multiplexer/demultiplexer USB 2.0 Switch. I draw the solution and email to you.
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