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Sunday, 19 May 2013

It can never be simple

I'd forgotten that I can't run a PIC18F4525 at 3.3V and expect it to work reliably. The minimum recommended volume is 4.2V. I can switch to the low voltage part, but speed decreases with voltage so I'm considering something a little more radical. Brain transplant!



This is a PIC32MX broken out to solder pads. I'll wire it point to point to work out some minimal implementation as I go along porting the code. It pops into the vacated PIC18 socket, hence the strange lop-sided appearance - there are pins on the board that need to be avoided.

This was the 1st chip which I soldered with paste & hot air.

1 comment:

Steve Smith said...

Looks like it worked OK - Well done :-)

This is how we do it

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About Sir Morris

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Loves: Old computers, Old Techno, Old ladies. Cake.
Hates: New computers.

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