Hello everyone!
I would like to ask you guys about unlocking a the MPC5777c using JTAG password.
Already I have configured the censorship module with a value of 0x55FF, I am sure that JTAG password is correctly written in the UTEST memory. I have a green hills debugger and I am using MULTI. Reading through the MULTI documentation, I have found that in order to send the JTAG Password for unlocking the MCU, I need to use the commands set censor_hi , set censor_lo, and set censor_unlock. But I do not know how to make them run. I have tried to send them through the command pane without success. Furthermore, I tried to add the censor commands to the .mbs file and no success either.
Does anybody know hot to use or set such commands properly? I have searched in the documentation and in this forum, and I have not found anything.
I appreciate your attention and support
Thanks guys
Hello Omar,
We do not use GHS debuggers, so for help on them is better to contact GHS support.
The JTAG password is 256-bit, and I see you using some hi/low commands, which does not seem to me correct. (For 64bit it would be good)
Have a look how lauterbach does it:
sys.option.keycode 0x01234567 0x89abcdef 0x01234567 0x89abcdef 0x01234567 0x89abcdef 0x01234567 0x89abcdef
My bet is that you are not entering whole 256bits , but just first 64bits (which was used in previous family. this was for MPC56xx common
Best regards,
Peter