Search found 316 matches

by kenneth
Sun Jul 12, 2020 1:58 pm
Forum: Demos
Topic: What works on Erebus? Welcome to Oric and best other demo.
Replies: 9
Views: 882

Re: What works on Erebus? Welcome to Oric and best other demo.

The Hobbit and DefenceForce are now compatible:
https://forum.defence-force.org/viewtop ... =20&t=2118
3DFongus Harrier
https://forum.defence-force.org/viewtop ... 3&start=30

The Demo program is a special multipart file, then it is not compatible.
by kenneth
Sun Jul 12, 2020 12:23 pm
Forum: General Discussion
Topic: Transferring games on tape
Replies: 4
Views: 570

Re: Transferring games on tape

I If the sound files are recorded with this tape recorder, to reread them it is not necessary to adjust the head azimut, there is a problem of fouling the reading head, various speed, or a bad setting of the equalizer (bass or tweeter). For a best control, just save a HIRES screen with a lot of deta...
by kenneth
Sun Jul 12, 2020 8:57 am
Forum: Technical questions
Topic: Need help fixing Oric 1
Replies: 45
Views: 2680

Re: Need help fixing Oric 1

The Oric computer doesn't need its Rom chip. But Erebus needs two banks of 16k memory each.
by kenneth
Sun Jul 12, 2020 7:14 am
Forum: Technical questions
Topic: Need help fixing Oric 1
Replies: 45
Views: 2680

Re: Need help fixing Oric 1

In this case A14 replaces A15 on pin1, this is not a problem for the selection of bank0 and bank3, but the pine27 is problematic with the process, this pin must be disconnected. For the program, Bank0 is the same but Bank3 become the bank1. The content $C000 to $FFFF in the 27c512 chip is placed at ...
by kenneth
Sat Jul 11, 2020 8:39 pm
Forum: Hardware hacks and extensions
Topic: Twilighte card & sittler card (sdcard/joysticks/mouse)
Replies: 34
Views: 7637

Re: Twilighte card & sittler card (sdcard/joysticks/mouse)

After all these years of hard work by Jede we will have a concentrate of all the real Oric peripherals in one device.
Long live the TwilighteCard ! 8)
by kenneth
Fri Jul 10, 2020 7:42 pm
Forum: Hardware hacks and extensions
Topic: ORIC SDCARD
Replies: 143
Views: 36105

Re: ORIC SDCARD

The value of the resistor is 220 ohms. The Sd module is the same for the 3D-printed case. I suppose that Mustangus soldered the 6pin connector on the opposite side of the pcb and the bent model was chosen. We can solder directly the sd "Catalex" module on the main board but there is the risk of elec...
by kenneth
Sat Jul 04, 2020 10:29 pm
Forum: Hardware hacks and extensions
Topic: IJK interface diagrams.
Replies: 97
Views: 40352

Re: IJK interface diagrams.

On these components it's very poorly printed ... Good news! :D
by kenneth
Sat Jul 04, 2020 9:47 pm
Forum: Technical questions
Topic: Need help fixing Oric 1
Replies: 45
Views: 2680

Re: Need help fixing Oric 1

cslee_work wrote:
Sat Jul 04, 2020 12:48 am

Kenneth, can you provide location in ROM to fix it?
In the Erebus file the Oric Rom code begins at the same place as the Basic11b Rom file, then you must replace these bytes:
Adr $3934:
#1E before, #1C after.

Adr $39CA:
#1A before, #18 after.
by kenneth
Sat Jul 04, 2020 8:42 pm
Forum: Hardware hacks and extensions
Topic: IJK interface diagrams.
Replies: 97
Views: 40352

Re: IJK interface diagrams.

can you send the pictures of the ribbon and of the interface with the both sides?
by kenneth
Fri Jul 03, 2020 12:08 am
Forum: Technical questions
Topic: Need help fixing Oric 1
Replies: 45
Views: 2680

Re: Need help fixing Oric 1

Normally the chips have supports, I designed the pcb to install a ZIF support for those who want to program the Uvprom.
by kenneth
Thu Jul 02, 2020 10:14 pm
Forum: Technical questions
Topic: Need help fixing Oric 1
Replies: 45
Views: 2680

Re: Need help fixing Oric 1

About the Erebus device, the Atmos Rom which is in the chip 27c512 is the same, only the Cload routine is modified.
by kenneth
Thu Jul 02, 2020 6:01 pm
Forum: Hardware hacks and extensions
Topic: IJK interface diagrams.
Replies: 97
Views: 40352

Re: IJK interface diagrams.

Are there the 4 bridges on the top of the pcb?
Maybe a chip or the diode mounted upside down?
by kenneth
Thu Jul 02, 2020 10:28 am
Forum: Technical questions
Topic: Need help fixing Oric 1
Replies: 45
Views: 2680

Re: Need help fixing Oric 1

The computer uses the 50Hz frequency for the screen, the POKE will set the ULA ship in the 60Hz mode video for US country, in the HIRES mode,I suppose that the routine will switch the ULA in the 50Hz mode because of random poxels. You must burn an Uvprom with a little code to switch the both resolut...
by kenneth
Thu Jul 02, 2020 10:16 am
Forum: General Discussion
Topic: CEO Summer Meeting in June
Replies: 15
Views: 1056

Re: CEO Summer Meeting in June

Very interesting, for me it was midday, I had to slip away during the demo of JeDe (I apologize to him, the meetingmaster and the other guests) the hp and the microphone were deactivated and reactivated just in time . I can't wait to see the entire YouTube version.. 8)