topic Re: BDM in-circuit programming in 8-bit Microcontrollers

BDM in-circuit programming

akuznetsov — Thu, 18 Dec 2008 18:55:08 GMT

Hello! To produce our device i must to programm flash memory of MC9S08 from main processor through BDM.
I can't find any algorithms how to do it. Please, point to source there i can find how to make own BDM programmator

Re: BDM in-circuit programming

peg — Fri, 19 Dec 2008 07:09:42 GMT

Hello and welcome to the fora,
Most people doing "production" will buy either a USB multilink or a Cyclone from P&E to do this.
If you really want to build one then we have the OSBDM here and you use it in conjunction with Codewarrior.

Re: BDM in-circuit programming

akuznetsov — Fri, 19 Dec 2008 19:53:50 GMT

Thanks,
Unfortunately we can't use existing programmators.
i just start learning OSDBM, and try to find functional bloks that helps me to programm and erase MC9S08 flash memory

Re: BDM in-circuit programming

kef — Fri, 19 Dec 2008 21:18:47 GMT

Then you can open your preferred 9S08 chip datasheet and study Development Support chapter. In this chapter will find BDM communications protocol and BDM commands. After BDM communications are done, Memory chapter can reveal how flash memory could be programmed.