Example code of initialization for mini flexbus with MCF51JE256

miguelbuitrago — Fri, 02 May 2014 02:07:26 GMT

I am trying to use mini flexbus with MCF51JE256 but it doesn´t work. I was trying to migrate from MCF52259 but the instruction aren´t the same. Could anybody give me an example with MCF51JE256 of how start the code? Thanks in advance.

Re: Example code of initialization for mini flexbus with MCF51JE256

TomE — Sun, 04 May 2014 23:49:18 GMT

You need something like "CFInit" which Freescale used to provide to generate startup code. This is so old it isn't on Freescale's site any more, but this thread refers to it and where it is now:

https://community.freescale.com/message/100270#100270

It doesn't support any MCF51 chips though.

Have you downloaded and looked at "TWR-MCF51JF_QUICK_START_DEMO: TWR-MCF51JF Quick Start Demo.", which is linked from the "Software and Tools" tab for your CPU?

I thought CodeWarrior had an equivalent code generation function now? Yes, that's "Processor Expert":

https://community.freescale.com/docs/DOC-93227

Otherwise, there's only THREE registers to set up in the Mini FlexBus Module for each chip select, so you should be able to work it out by reading the manual.

Tom

topic Re: Example code of initialization for mini flexbus with MCF51JE256 in ColdFire/68K Microcontrollers and Processors

Example code of initialization for mini flexbus with MCF51JE256

Re: Example code of initialization for mini flexbus with MCF51JE256