topic 回复： BKGD line BDM programmer tool using Arduino in OSBDM and TBDML

BKGD line BDM programmer tool using Arduino

Neoraxs — Fri, 18 Oct 2024 18:28:03 GMT

Hi, this is my first post on this Forum.
I want to make a simple programmer tool such as JTag Write or Read Data using Arduino as an adapter or interface connecting with microcontrollers and coincidentally the target microcontroller that you want to Read or Write is NXP / Freescale S9S12G64 which has a BKGD data line.
Is there a reference to make a Read and Write programmer tool for NXP microcontrollers?
I am not very proficient in C or Assembly language, that's why I chose Arduino.

Thank you

Re: BKGD line BDM programmer tool using Arduino

pgo — Tue, 22 Oct 2024 11:58:31 GMT

You can find a description of the Background Debug Module in a chip reference manual e.g.

https://www.nxp.com/docs/en/data-sheet/MC9S12C128V1.pdf Chapter 6.

Note that this only describes the communication protocol and associated commands.

Programming the flash on a chip is done by a program downloaded to the target.

Anyway - the above is not simple to do. Unless you are doing this for personal interest I would recommend looking at USBDM.

https://usbdm.sourceforge.io/USBDM_V4.12/html/index.html

bye

回复： BKGD line BDM programmer tool using Arduino

Skynet — Thu, 26 Mar 2026 02:05:55 GMT

做好了么