chipKIT® Development Platform

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Created Wed, 14 Jan 2015 11:25:29 +0000 by GastonLagaffe


Wed, 14 Jan 2015 11:25:29 +0000


I thought I had posted this ...

If I want to try and use the PIC32MX250F128D in TQFP package instead of the 28-DIL verision, could I then use the PIC32MX250F128B bootloader. If so, what would be the pin equivalent for program? I have the TQFP chip on a breadboard setup and am able to talk to it via PicKit3

Ciao, Mathias


Wed, 14 Jan 2015 11:34:30 +0000

You might be better using the Fubarino Mini boot loader (if you're wanting the USB interface that is), since it uses the D in a QFN package.


Wed, 14 Jan 2015 12:16:31 +0000

Be carful: There are 40, 48 and 50MHZ bootloader versions of the Fubarino mini SD. Microchips offers two of them: PIC32MX250F128DT-50I/PT (50MHZ) PIC32MX250F128D-I/PT (40MHZ)

But all I can say is that I've "overclocked" (for timing compatibilty reasons) my PIC32MX250F128B to 48MHZ without problems. I read in some forums, that overclocking to more than 60MHZ works fine, so ~50MHZ would not harm.

But why not consider a more powerful and not so expensive PIC32MX440F256H? There should also be a bootloader available (im not on my personal computer, so I do not've access to my notes, I think its the olimex pinguino pic32)

Here is a list for all "ready made" HEX bootloader files:


Wed, 14 Jan 2015 13:56:46 +0000


overlooked the Fubarino mini. Will go with this - thanks

Ciao, Mathias