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Re: Newly made PCMCIA sound card

Posted on 2021-04-09, 09:10

I am working on a couple things and there is overlap. I had intended to utilize this thread for discussion about the PCMCIA sound card per the title and have a few times tried to steer away from talking about the HP specific aspects as that does not have a wider interest here. The "audio" portion …

Re: Newly made PCMCIA sound card

Posted on 2021-04-08, 23:58

I am working on a couple things and there is overlap. I had intended to utilize this thread for discussion about the PCMCIA sound card per the title and have a few times tried to steer away from talking about the HP specific aspects as that does not have a wider interest here. The "audio" portion …

Re: Newly made PCMCIA sound card

Posted on 2021-04-08, 22:36

LXsidecar was never discussed here previosuly and I dare to say that probably majority of the rest of people on this forum were only interested in a PCMCIA midi card that could work on any laptop to play games on, and they wouldn't of used a 200lx for that, owned one, or otherwise wanted to. So I …

Re: Newly made PCMCIA sound card

Posted on 2021-04-08, 05:01

I thought originally all it was going to be was a MPU interface with a SAM chip on it. Alternatively it could just have a sidecar that has a Wavetable header in it and the user could put any wavetable in there they wanted. I don't think you should add sound blaster to it as it adds a lot of …

Re: Newly made PCMCIA sound card

Posted on 2021-04-08, 04:56

Sorry if this has already been repeated, but has anybody put this hardmpu into a pcmcia card? I saw it contemplated but no follow up. I am about to do this but I do not want to reinvent the wheel. My plan is the HardMPU and the dream.dr SAM2695 on a 16bit pccard. good to know I'm just going by the …

Re: Newly made PCMCIA sound card

Posted on 2021-04-08, 04:13

I thought originally all it was going to be was a MPU interface with a SAM chip on it. Alternatively it could just have a sidecar that has a Wavetable header in it so you could put any wavetable in it you wanted with the bulk of the chips inside the sidecar to make it easier to design. You should …

Re: Newly made PCMCIA sound card

Posted on 2021-04-08, 02:08

I made a breakout/dev board for the PCMCIA port, it has a flash chip and GAL to handle some of the basic logic needed and then has some ports for my logic analyzer, and a header that I can use to connect to the breadboard for testing different functions. I have a couple other pcmcia projects I am …

Re: Newly made PCMCIA sound card

Posted on 2021-04-05, 23:49

There's a company that sells a PCMCIA card that can be configured as a 16bit type 2 PCMCIA card or a 32bit cardbus card, which contains an FPGA with 400K gates: https://comblock.com/download/com1300.pdf So it should be possible to build something like this... Terrence

Re: Newly made PCMCIA sound card

Posted on 2021-04-05, 21:39

I like this frankenstein setup! Are you still sure you can fit all this on a pcmcia pcb? Did you try any real games? warcraft2 "your soundcard works perfectly" was one of my tests, doom and streamtracker. ST3 I was not getting the expected sound, I think there is still an error in how I calculate …

Re: Newly made PCMCIA sound card

Posted on 2021-03-27, 21:32

FYI there were a number of laptops which for some reason used 201h in the motherboard design, as noted in this older PCMCIA gameport card: https://web.archive.org/web/20000526144514/http://www.expnet.com/Know.nsf/484430dae9e005278825647000080de0/e27cf7af28b67b4a88256463001aa03f?OpenDocument Good to …

Re: Newly made PCMCIA sound card

Posted on 2021-03-27, 05:51

FYI there were a number of laptops which for some reason used 201h in the motherboard design, as noted in this older PCMCIA gameport card: https://web.archive.org/web/20000526144514/http://www.expnet.com/Know.nsf/484430dae9e005278825647000080de0/e27cf7af28b67b4a88256463001aa03f?OpenDocument Good to …

Re: Newly made PCMCIA sound card

Posted on 2021-03-18, 06:51

again, i should reiterate I do not know what I am doing or saying. my understanding is that those other tsr's are using some kind of ioport trapping which I know nothing about. also i thought the main issue was they could only be used with applications that do not enter protected mode but were okay …

Re: Newly made PCMCIA sound card

Posted on 2021-03-18, 06:38

I am starting to feel quite confident about this DMA emulation, I have a very rough proof of concept working I think I could do it. If performance becomes an issue somebody smart can rewrite in assembly. I do need to figure out how many people would want these cards. Once I have some further …

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