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USB ULINK + MCB2100 Stopped Working -- and a Fix

Hi All.

Just a quick note as I experienced an odd problem today and it took a while to fix ...

After a day of DK-ARM use, all of a sudden I could no longer download to my MCB2100 via USB ULINK. Basically, all comms via ULINK to the LPC2129 on the MCB2100 failed. I tried the setup on another PC -- same problem.

The fix turned out to be to use the Philips LPC2000 Flash Utility to erase and reprogram the device with Blinky.hex.

After that, the ULINK worked fine again.

I suspect I somehow put the device into some sort of low-power mode (though not intentionally -- I haven't explicitly accessed any of the low-power stuff) which is incompatible with ULINK (as per ULINK docs). Nice to see that the Flash Utility was able to get past this ...