Enhansement Request --

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#1
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my eye sight is not what it once was and reading the top of the avr chips is a crap shoot sometimes. Right now I can put the chip in the dragon (or other programmer) and select a chip and say read signature. If I selected wrong it prints the signature it reads and says it doesn't match what I selected....

It would be really really nice if it printed the signature and in parens state the chip it thinks it is.....

Or is there a better way?? Just getting back into embedded after ~20 years away from it.

TIA

LEs

next time for shure.

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Buy a Sherlock Holmes style magnifying glass. And don't be proud.

There are only a limited number of 20-pin or 8-pin AVRs. So if it was not the family you expected, you can always try another family with the same leg-count.

The flash memory size comes in the second signature byte. So as a general rule, 0x91 will be 2k, 0x92 = 4k, 0x93 = 8k, 0x94 = 16k, 0x95 = 32k.

But if a signature reads as garbage, you want to lower the ISP frequency or remove the loading on the ISP pins.

David.