ATmega328PB-BOB.ods

Pinout spreadsheet

spreadsheet - 389.47 kB - 02/09/2021 at 06:33

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ATmega328PB-BOB.pdf

Pinout pdf file

Adobe Portable Document Format - 123.50 kB - 02/09/2021 at 06:33

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video-trig.sch

Schematics for the circuit in Kicad

x-kicad-schematic - 21.15 kB - 01/23/2021 at 06:02

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video_trig-v1.1.tar.bz2

Tweaked the numbers to fit with my scope which has video trigger.
The only minor nick-nack is the 4th line on the even field is close to the vertical sync, so this one specifically doesn't work. Otherwise, it seems to be all fine.

x-bzip - 15.11 kB - 01/03/2021 at 02:15

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video_trig-v1.0.tar.bz2

This is the fully working version. The code should be documented well enough to reproduce the design. It generates a stable jitter-free trigger output (rising edge) for any scope.

x-bzip - 15.08 kB - 01/02/2021 at 22:18

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ATmega328PB-BOB.jpg

Picture of my break-out board for this MCU.

JPEG Image - 368.16 kB - 12/21/2020 at 09:16

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Video-sync.tar.bz2

Eagle schematics of the old school version. The LED module is not documented but it's 3 separate BCD to 7-segment decoders with 7-segment displays.

x-bzip - 87.89 kB - 12/21/2020 at 08:40

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trig-video.tar.bz2

Code for the old school version. It runs on a 6305, the code is assembled with ASL.

x-bzip - 8.40 kB - 12/21/2020 at 08:30

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