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Can't connect through BDM Interface

Hello,

I'm developping for a MC68332 board and can't seem to connect to my device with the BDM interface. I'm developping on a laptop running XP connected via the parallel port with a BDM-interface of P&E.

Using the prog32 tool from P&E I can reset the cpu, but he gives an error that he can't acces the processor RAM. When I start my pc in DOS then all works OK

Could this be something with the parallel port and XP? I tried several settings for the parallel port in the XP device manager and in the BIOS, but nothing seems to work...

Does this sound familiar to someone?

Thanks, Alex

Reply to
Alex
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HI Alex,

I am currently developing with a 68HCS12A64 and a BDM.

I have been loading and reloading updated code during my development and then all of a sudden I have seen what seems to be the exact symptoms you have seen, the BDM does not want to talk.

I have tried the USB BDM from P&E as well as Motorola's SDI BDM. The latter gets further but in the end stops as well.

I don't have the answer as yet, but I believe that it is possible that the BDM interface on the CPU has been disabled. I tried another CPU and it work up to a certain stage in the upload and then died as the other one. I changed the code a little and tried a third CPU and all is well at the moment. Possible my code wrote over the BDM registers or something, but I'm fairly sure it didn't.

I to am using XP.

Let us know if you get an answer and I'll do the same.

regards Phil

Reply to
Phil W

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