I.MX8M Plus Enter JTAG Debug

[hjc]

When using NXP I.MX8M Plus chip for bare metal development and debugging, and using DStream emulator to connect to the JTAG interface of I.MX8M Plus processor through JTAG, pin JTAG_ MOD has been set to low level, but the development board cannot enter the JATG debugging mode, and the ROM Table of the chip cannot be read using the J-Link emulator. Does the I.MX8M Plus chip disable the JTAG function when it leaves the factory? How can I enable the Cortex-A53 processor in I.MX8M Plus chip to enter the bare metal debugging mode through JTAG? Thank you

[Bio_TICFSL]

Hello,

Yes, JTAG is disable when is leaving the factory, but this is just for rom access you can access to the rest of the code.

Regards

[hjc]

if i no use rom access, how can i do that use the jtag for debug Cortex-a53 bare metal program ?

how can i do that enter jtag debug mode, thank you