More on the MPC850

I managed to get the DirectvDSL X2 modem to erase its flash and reprogram with new flash through the BDM port. The new stuff doesn’t work though. It was more of a test to see if I could reliably erase and reprogram the flash chip. I’m using the MPCBDM version 2 cable and gdb with mpcbdm support. Not knowing anything about the processor or in-system flashing, it was a long uphill battle. My next trials will be to load a boot loader that will eventually boot linux. I’m trying for U-Boot right now but I think I’m going to have to make a custom board config file. It doesn’t look easy but we’ll see.

I wrote a Flash.dev file for the Intel DA28F320J5 flash chip. It wasn’t really hard once I figured out what the format was but it’s just easier to get the Flash.dev from someone else. If you want it leave a comment to this blog entry, and I’ll get back to you.

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