Search found 102 matches

by protek
Thu Jul 23, 2020 8:38 pm
Forum: Hardware hacks and extensions
Topic: ORIC SDCARD
Replies: 169
Views: 109442

Re: ORIC SDCARD

Since I didn’t have a case for my Erebus, I thought I’d design my own. Here are a few pics. https://www.dropbox.com/s/69m47y7335yfdgp/Photo%2023.7.2020%2C%2022.30.36.png?raw=1 https://www.dropbox.com/s/62y2fybvn8eddip/Photo%2023.7.2020%2C%2022.30.41.png?raw=1 https://www.dropbox.com/s/hv4nybo2o7o076...
by protek
Mon Jul 20, 2020 6:44 pm
Forum: Hardware hacks and extensions
Topic: ORIC SDCARD
Replies: 169
Views: 109442

Re: ORIC SDCARD

I got a 28 pin socket and the ceramic capacitors today. I also bought another 27C512, which happened to be UV erasable this time. I tried with the previous EPROM first and unsurprisingly, the Oric wouldn’t even boot. The second EPROM wasn’t empty either, but this time I was able to erase it. Now, it...
by protek
Mon Jul 20, 2020 9:12 am
Forum: Hardware hacks and extensions
Topic: ORIC SDCARD
Replies: 169
Views: 109442

Re: ORIC SDCARD

I’d say it’s either a used chip or me accidentally having put the chip wrong way around and doing a blank check while it was like that. Nevertheless, I think it wasn’t entirely full either, as the prommer was able to write the binary into the ”blank” section in the beginning and I’m able to read the...
by protek
Sun Jul 19, 2020 2:16 pm
Forum: Hardware hacks and extensions
Topic: ORIC SDCARD
Replies: 169
Views: 109442

Re: ORIC SDCARD

The one 27C512 I got isn’t UV erasable. I first assumed it was an EEPROM, but unfortunately that wasn’t the case.
by protek
Sun Jul 19, 2020 6:58 am
Forum: Hardware hacks and extensions
Topic: ORIC SDCARD
Replies: 169
Views: 109442

Re: ORIC SDCARD

I'm still waiting for a few items to arrive for my Erebus, including the SD card reader module. Is it possible to test the hardware without the SD card reader module? Will the Oric boot into an empty program list? The thing is that my 27C512 didn't pass the empty test in my programmer. It did howeve...
by protek
Fri Jul 17, 2020 11:37 am
Forum: Hardware hacks and extensions
Topic: ORIC SDCARD
Replies: 169
Views: 109442

Re: ORIC SDCARD

Image
Received the Erebus PCB today. Still missing a few bits and bops but it is coming along nicely.

I probably need to create a custom case for it as my IDC connector has the latches.
by protek
Sun Jul 12, 2020 9:51 am
Forum: General Discussion
Topic: Transferring games on tape
Replies: 4
Views: 3212

Re: Transferring games on tape

I haven’t checked the head alignment. Aligning the head isn’t the easiest as it cannot be done whilst the tape is playing. I don’t think the belts are worn as the TCM-939 is from the early 2000s and it does load an Amstrad CPC program.

I’ll try to see if there’s any way of adjusting the azimuth.
by protek
Fri Jul 10, 2020 3:23 pm
Forum: Hardware hacks and extensions
Topic: ORIC SDCARD
Replies: 169
Views: 109442

Re: ORIC SDCARD

I just bought an Erebus PCB from ebay. I would’ve bought an assembled one, but there didn’t seem to be any for sale at the moment. I’ve ordered all the components except the reset button and resistor for it. What is the resistor value? Also, what’s the type of the SD card reader module that is used ...
by protek
Thu Jul 09, 2020 1:43 pm
Forum: General Discussion
Topic: Transferring games on tape
Replies: 4
Views: 3212

Transferring games on tape

Since I haven’t got any SD based storage devices for my Oric, I decided to utilize my Sony recorder and made the cable to connect the two. I’ve used Tap2wav to convert a .tap file to .wav format and managed to load a game successfully playing it on Audacity on my Win10 PC. I tried to record the same...
by protek
Thu Jul 09, 2020 9:58 am
Forum: Technical questions
Topic: Help with two Orics
Replies: 101
Views: 49738

Re: Help with two Orics

Image

Like these. Well, maybe they’re not so thin. More like jailbars.
by protek
Wed Jul 08, 2020 9:56 am
Forum: Technical questions
Topic: Help with two Orics
Replies: 101
Views: 49738

Re: Help with two Orics

One thing that’s still puzzling me a bit is that I can’t get mikeb’s diagnostic ROM to run, at least on board #2. It’s just stuck on showing the thin vertical bars. It’s possible that I’ve got the ROM images mixed up and it’s iss’ ROM instead, as, although I can’t put my finger on it, it’s like I co...
by protek
Wed Jul 08, 2020 9:21 am
Forum: Technical questions
Topic: Help with two Orics
Replies: 101
Views: 49738

Re: Help with two Orics

I received the 74LS04 today (actually had to order another one because the first one apparently has gotten lost in the mail) and I can say with relative confidence that I now got two working Oric motherboards. With the help of 10 uF capacitor in the reset circuitry, board #2 now boots to basic by it...
by protek
Wed Jul 01, 2020 12:33 pm
Forum: Hardware hacks and extensions
Topic: IJK-egoist new joystick interface by [raxiss]
Replies: 104
Views: 81808

Re: IJK-egoist new joystick interface by [raxiss]

I’d be interested in one too, once they come up for sale.
by protek
Sat Jun 20, 2020 1:56 pm
Forum: Hardware hacks and extensions
Topic: IJK-egoist new joystick interface by [raxiss]
Replies: 104
Views: 81808

Re: IJK-egoist new joystick interface by [raxiss]

That looks awesome! Great work!
by protek
Fri Jun 19, 2020 4:28 pm
Forum: Technical questions
Topic: Monitor or TV?
Replies: 8
Views: 4963

Re: Monitor or TV?

I’m using a 14” CRT TV with Scart that’s from the early 2000s. That gives me a a crisp and sharp picture on the Oric, using RGB.