Quote Originally Posted by Bruce

......Note: The MCS boot-loader works only with an external oscillator. If you change this in the loader firmware before programming, it probably isn't going to work. At least not reliably.
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Bruce,

Why so? Why can't I write a loader that uses the internal clock? It certainly can't be an accuracy/stability issue - I have thousands of units in the field for a couple of years running serial comms with the internal clock over very wide temperature ranges. That much works fine.

And if I CAN write a loader that uses the internal clock, then why can't I modify the MCS loader to do the same by disassembling, modifying, and reassembling?

Thanks

Joe