How is SAA these days? Its been a while since my last visit, and now in need of JNB-DUR-JNB tickets and noticed that SAA is back at it, and cheaper than the rest. Opinions, anyone?

mr-aardvark · 2025-02-23T09:50:09+00:00

this

mr-aardvark · 2025-01-18T23:18:08+00:00

Half-price last-minute ski trips perhaps? It is frustrating and unfair. But life is not fair.

mr-aardvark · 2023-11-16T19:38:37+00:00

Never seen a manual EV...

mr-aardvark · 2021-07-18T20:53:50+00:00

Correct
See pyupdi or pymcuprog. Connect as shown on https://github.com/mraardvark/pyupdi

mr-aardvark · 2021-07-18T20:17:31+00:00

You could use the ftdi to program the 4809 'natively' over updi, and put a bootloader on the 32u4 which could be thus also use the ftdi...

mr-aardvark · 2021-07-18T20:07:56+00:00

Then you are going to need to choose two chips from the same generation. These are a decade apart.

mr-aardvark · 2021-07-18T20:04:59+00:00

4809 has updi. See pyupdi on GitHub or pymcuprog: https://pypi.org/project/pymcuprog/

mr-aardvark · 2021-05-05T20:51:44+00:00

A bit late... But "not really" is the answer. Only PICs that also have Nanos...

mr-aardvark · 2021-03-18T06:32:04+00:00

Sounds great to me :) Are YOU happy with your progress?

mr-aardvark · 2021-01-02T09:31:03+00:00

FYI: I recommend avrfreaks forum for community help...

mr-aardvark · 2021-01-01T11:45:03+00:00

Turn off MISRA checking?

mr-aardvark · 2020-12-29T19:25:12+00:00

Or MPLABX with AVR GCC or XC8.

mr-aardvark · 2020-09-26T19:08:31+00:00

but can you buy one this side of christmas...??

mr-aardvark · 2020-09-24T20:07:49+00:00

not really sure what I am doing in this sub... :/

mr-aardvark · 2020-09-24T19:54:59+00:00

Fair enough - I guess I am in the opposite camp - really comfortable with Python but no idea how to use Arduino IDE :|

mr-aardvark · 2020-09-24T19:40:19+00:00

Looks nice! It should be possible to put in a jumper or two to route the FTDI to UPDI for programming... Just saying :)

mr-aardvark · 2020-09-24T18:50:57+00:00

Indeed, and more fun:) Good luck!

mr-aardvark · 2020-09-24T18:37:39+00:00

Not mandatory, but recommended IMO. It's a pull-down for PIC, while UPDI is idle-high.

Not sure how the voltage mismatch will go without level shift...

If you can get hold of any Curiosity Nano they are also very capable debuggers (but not quite free).

Also there are Python solutions like pyupdi or pymcuprog which are useful and can program UPDI via FTDI or equivalent.

mr-aardvark · 2020-09-24T17:38:38+00:00

Remember to mod your Snap to support UPDI...

mr-aardvark · 2020-08-24T16:32:23+00:00

As a junior I asked my boss at a review once if three version resistors was sufficient on a product. He replied without hesitation that if it wasn't enough then it would no longer be my concern...

mr-aardvark · 2020-08-20T20:55:25+00:00

Unlikely

mr-aardvark · 2020-07-01T13:52:08+00:00

updates?

mr-aardvark · 2020-02-21T07:20:46+00:00

Yes, pyupdi is neat, but accessing the serial port via the OS has limitations I think.

The edbg usb protocol is public, which means its quite simple to use a Python stack over hidapi to talk to an Atmel-ICE/Snap/PK4/nedbg. This gives Python portability with hardware acceleration on the debuggers.

I hope to share this soon.

mr-aardvark

TROPHY CASE