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Old 12-18-2013, 11:25 PM   #1
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Default Replacement CPU for MSI

I bent one of the pins on my Megasquirt 1 CPU while installing it back it, while bending it back, the tip broke, it is still enough to make contact and the car does run. With that said, I'd like to replace it.

DIY has it for $22
CPU - MegaSquirt-I CPU

Digi key has it listed for half that but they have no stock. A few pages state that this item is obsolete. Is there a place to get them cheaper, or maybe there is a superseded part number?


Actually, it looks like the CPU has to be preprogrammed with firmware before I can flash it?


On 2nd thought, it is pin 40 that I broke, does it do anything?

edit yet again:

It appears it is labeled fb_inj1, i'm assuming injectors? so def. need to take care of this.

Last edited by kero; 12-18-2013 at 11:50 PM.
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Old 12-19-2013, 09:05 AM   #2
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That is the active flyback pin.

The CPU we sell has the serial monitor already loaded; a generic chip will not have it loaded.
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