topic Re: Using the S12ZVC demo board as debugger in S12 / MagniV Microcontrollers

Using the S12ZVC demo board as debugger

fabryrally — Thu, 20 Apr 2017 14:11:10 GMT

I know is probably a silly question, but i have the demo board for the S12 ZVC, the MC9S12ZVC, and i just finish to assembly my testing pcb. i was wandering if i can use the board to flash and debug my own board.

The board have the debuggeron it, and so the BDM ( jumper J34) and the OS_Debug (J43) connector.

Can someone give me some advice? Thank you!

Re: Using the S12ZVC demo board as debugger

aaronlee — Fri, 21 Apr 2017 04:59:31 GMT

You can refer About programming type (OSBDM ? Writer ?)

I think no way to using DEMO BOARD to debugging your board.

Re: Using the S12ZVC demo board as debugger

aaronlee — Fri, 21 Apr 2017 05:13:24 GMT

You need a Programmer and Debugger.

I use PEmicroMultilink Universal.

Re: Using the S12ZVC demo board as debugger

danielmartynek — Fri, 21 Apr 2017 08:14:32 GMT

Hi,

Theoretically you can use the OSBDM which is on the demo board and route it to the MCU on your board, but you have to make sure that both MCUs will not interfere. I’m not sure how to do it, unless you want to dump the 12ZVC from demo board.

Regards,

Daniel

Re: Using the S12ZVC demo board as debugger

fabryrally — Fri, 21 Apr 2017 22:43:34 GMT

Yes i have the same, but i was thinking that the demo board have a debugger on board, and the OSBDM connector that might be used

Re: Using the S12ZVC demo board as debugger

fabryrally — Fri, 21 Apr 2017 22:47:48 GMT

Yes i think the same, i was look at the schematics, and probably just removing in some way the power to the micro onboard will be enough?

http://www.nxp.com/assets/downloads/data/en/schematics/VLG-MC9S12ZVC-SCH.pdf

at page 7 there is the debugger and i think the jumper J5 will be enough to don't power the board. the debugger will have power from the Usb. Do you think that might work?

Re: Using the S12ZVC demo board as debugger

danielmartynek — Mon, 24 Apr 2017 12:15:07 GMT

Hi,

It seems to be rather complicated. The board has two MCUs and you can debug both of them. BDM (J34) is for S12ZVC and OS_DEBUG (J43) is for debugging the S08JM60. So, you will need to make a new connection for your board and then try if it works. Also, I’m not sure if the S08JM60 checks whether the S12ZVC is supplied or not.

Regards,

Daniel