NWx287 RTC Module CR2032 edition

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This video is about the modified NWx287 RTC module by Necroware that works with a CR2032 battery instead of a CR1225. It is based on a BQ3285 RTC chip (SSOP-24 package). This boards is a drop-in replacement for some of the Dallas, Benchmarq, Odin RTC modules, like the DS1287 and BQ3287.
Project page: github.com/scrapcomputing/nwX...
Original NWx287 project: github.com/necroware/nwX287
Necroware's channel: / @necro_ware
Necroware's NWx287 video: • Ultimate RTC module r...
Adrian's Motorola Bus Mode: • BBC Master mods and im...
Music: Track Stalker from the Duke Duke Dance Party Album
by the Space Quest Historian, Troels Pleimert
spacequesthistorian.bandcamp.com
• "Duke Duke Dance Party...

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3 авг 2023

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Комментарии : 16

@johnsonlam 11 месяцев назад

Very useful when you got to replace the outdated DALLAS chip!

@Stratotank3r 11 месяцев назад

You are relly in to this! Tinkering with new stuff and improving existing things. THX!!

@darthtripedacus1 11 месяцев назад

Great work sir!

@TheChimeraMan 11 месяцев назад

Nice work

@Vanessaira-Retro 11 месяцев назад

Thank you as always.

@RetroTinkerer 11 месяцев назад

A thousand thanks!

@dim0n1 11 месяцев назад

im surprised, that it takes so long to someone to modify necrowaves design for a much more common CR2032 battery, nice ;-)

@BaguetesGarage 11 месяцев назад

Nice work as usual. Don't have any motherboards that use the Dallas RTC but can come handy in the future. What about a little PCB to replace the DIN keyboard connector with a PS/2 connector, i really hate the AT to PS/2 keyboard adapters. Maybe space the PCB to the motherboard with a 3D printed spacer so the center of the new connector matches the old one.

@mattborup5293 6 месяцев назад

Awesome job! Question… you say to not use the square pins… why exactly is that? What if one was to use those. Will it still work?

@scrap_computing 5 месяцев назад

The most common headers have rectangular pins which are too wide for the socket.

@WinrichNaujoks 9 месяцев назад

Does this also work as a replacement for a DS1287A?

@scrap_computing 9 месяцев назад

The only difference between the DS1287A and the DS1287 that I can see is the RCLR# pin 21. As far as I am aware this is supported by the BQ3285LF. So if I would guess it should work.

@WinrichNaujoks 7 месяцев назад

What is the difference between Intel and Motorola mode?

@scrap_computing 4 месяца назад

Not sure, perhaps it has to do with the bus timings.