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General Category => NC100, NC200, PCW, PDA600 - the rest of the Family! => Topic started by: scruss on 00:50, 26 February 23

Title: NC100: SRAM cards and backup battery
Post by: scruss on 00:50, 26 February 23
I recently got an NC 100, and it's far nicer than it really deserves to be. I think I prefer it to the Z88!

I do have a couple of questions, though:


I don't think my device has been damaged by old battery goo, so battery contacts seem good.

thanks!
Title: Re: NC100: SRAM cards and backup battery
Post by: pelrun on 05:05, 26 February 23
https://www.best-electronics-ca.com/portfoli.htm inexplicably still has cards for US$15 after decades of selling them but they're nearly all gone.

The centre tab of the battery connector might have flattened out and isn't putting any pressure on the cell. Bend it up a bit.
Title: Re: NC100: SRAM cards and backup battery
Post by: scruss on 16:56, 26 February 23
Wow, thanks! They really do appear to have some left!
Title: Re: NC100: SRAM cards and backup battery
Post by: Bryce on 19:09, 26 February 23
If they don't have any SRAM cards left, I'm pretty sure I still have a few of them here somewhere. I just need to motivate myself enough to go looking...

Bryce.
Title: Re: NC100: SRAM cards and backup battery
Post by: xesrjb on 22:19, 26 February 23
Quote from: pelrun on 05:05, 26 February 23https://www.best-electronics-ca.com/portfoli.htm inexplicably still has cards for US$15 after decades of selling them but they're nearly all gone.

The centre tab of the battery connector might have flattened out and isn't putting any pressure on the cell. Bend it up a bit.
Service was perfect, shop is recommended...

xesrjb 
Title: Re: NC100: SRAM cards and backup battery
Post by: robcfg on 23:06, 26 February 23
Quote from: Bryce on 19:09, 26 February 23If they don't have any SRAM cards left, I'm pretty sure I still have a few of them here somewhere. I just need to motivate myself enough to go looking...

Bryce.
I wouldn't say no to one of them should you go looking for them  :D
Title: Re: NC100: SRAM cards and backup battery
Post by: Sykobee (Briggsy) on 00:15, 27 February 23
Hmm, can these SRAM cards also be used on the NC200?
Title: Re: NC100: SRAM cards and backup battery
Post by: pelrun on 06:13, 27 February 23
Yes, all the NC series devices have the same pcmcia card support. @hjalfi wrote a flash card driver for his cpmish on the nc200, but the standard rom software still only understands 1MB of SRAM.
Title: Re: NC100: SRAM cards and backup battery
Post by: scruss on 00:31, 28 February 23
I just confirmed (and ordered) from Jeff Koda at Best Electronics that they still have a very few left. You pretty much have to call them twice to order anything, but he's super friendly when he actually answers the phone
Title: Re: NC100: SRAM cards and backup battery
Post by: jimmyd on 09:22, 28 February 23
Has anyone had any luck reading and writing to these RAM cards from a modern(ish) computer?
Title: Re: NC100: SRAM cards and backup battery
Post by: scruss on 14:58, 28 February 23
I used to have a serial SRAM card reader that dumped the whole contents (or wrote the whole contents), but I haven't seen one in a while
Title: Re: NC100: SRAM cards and backup battery
Post by: JohnElliott on 21:27, 28 February 23
Quote from: jimmyd on 09:22, 28 February 23Has anyone had any luck reading and writing to these RAM cards from a modern(ish) computer?

At one time my desktop PC had a PCI PCMCIA adapter fitted, and as I recall that could make SRAM cards visible as devices under Linux. These days a PC with a PCI slot probably counts as a 'tweener rather than a modern computer though.
Title: Re: NC100: SRAM cards and backup battery
Post by: pelrun on 05:26, 01 March 23
Easiest path is an older laptop; pcmcia slots were extremely common at one point.

I've also built a usb reader but it's also waiting on me to finish the software for it :D
Title: Re: NC100: SRAM cards and backup battery
Post by: jimmyd on 07:33, 01 March 23
Quote from: pelrun on 05:26, 01 March 23Easiest path is an older laptop
I do actually have an older laptop and at some point I tried to use it to read a card, but could not figure it out.
At the time, I had installed linux on the laptop and I seem to remember something about mtools that would not compile or similar.

Would you happen to know of a guide or other resource that  could help me to actually read/write to a card?
Title: Re: NC100: SRAM cards and backup battery
Post by: scruss on 01:22, 12 March 23
Quote from: scruss on 00:31, 28 February 23I just confirmed (and ordered) from Jeff Koda at Best Electronics that they still have a very few left. You pretty much have to call them twice to order anything, but he's super friendly when he actually answers the phone
I just got two very clean Apple Newton branded 1 MB SRAM cards from Best Electronics. The first one I tried had good battery voltage, which is good as I don't have an easy source of CR2320 (larger and thinner than the more common CR2032) handy.
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