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Topic: ATmega4809 in DIP (Read 317 times) previous topic - next topic

westfw

I don't know whether y'all heard over here, but Microchip has released a version of the ATmega4809 in a DIP40 package.  You lose a 8 pins (All of PORTB and part of PORTC - notably, USART3 :-( ), but it has certain advantages.

It's been added to my spreadsheet

And I put together this cute little thing that's supposed to take care of the "necessary" components.

westfw

#1
May 17, 2019, 02:17 am Last Edit: May 17, 2019, 03:01 am by westfw
I don't know whether y'all heard over here, but Microchip has released a version of the ATmega4809 in a DIP40 package.  You lose a 8 pins (All of PORTB and part of PORTC - notably, USART3 :-( ), but it has certain advantages.

It's been added to my spreadsheet

And I put together this cute little thing that's supposed to take care of the "necessary" components.



PS: I'm never doing that again.  What a PITN!

westfw

#2
Jun 24, 2019, 04:58 am Last Edit: Jun 24, 2019, 04:58 am by westfw
PCBs for a "neater" solution...

westfw

#3
Jul 08, 2019, 09:04 am Last Edit: Jul 08, 2019, 09:04 am by westfw
It blinks!  (Not using the Arduino IDE yet, but with MPLAB-X and and PICKit4 programmer.)
This confirms that the chip can be programmed using the UPDI pin, even without the programmer having access to RESET.  Which is good - you'd have to try really hard to lock yourself out completely.  (that also probably means that the pullup I have on RESET isn't needed, and that RESET can be re-used pretty easily as GPIO.)

The socket doesn't fit quite as securely in a protoboard as I'd like.  I'm not quite sure whether that's because the pins are just too short, or because of the TH leads poking out the bottom.



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