ROM cartridge

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mrtinb
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ROM cartridge

Post by mrtinb »

Timex Sinclair released TS1510 expansion for TS1500, TS1000 and ZX81, to use ROM cartridges.

The Chrome interface has a cartridge port as well. This is compatible with the Spectrum ZX Interface 2.

Does anyone know if these cartridge interfaces are compatible?
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McKlaud
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Re: ROM cartridge

Post by McKlaud »

Have a look there: http://trastero.speccy.org/cosas/JL/Car ... S1510.html
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1024MAK
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Re: ROM cartridge

Post by 1024MAK »

mrtinb wrote: ↑Sat Nov 10, 2018 8:55 pm Timex Sinclair released TS1510 expansion for TS1500, TS1000 and ZX81, to use ROM cartridges.

The Chrome interface has a cartridge port as well. This is compatible with the Spectrum ZX Interface 2.

Does anyone know if these cartridge interfaces are compatible?
The two different cartridges are completely incompatible. They have a different number of contacts. And the contacts are wired differently.

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mrtinb
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Re: ROM cartridge

Post by mrtinb »

I see one major difference:
  • TS1510 is with area 8k - 16k
  • Chroma is with area 0k - 16k
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McKlaud
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Re: ROM cartridge

Post by McKlaud »

Just assembled a clone of TS1510 and 32K cartridge.
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TS1510_clone_01.jpg
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Fruitcake
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Re: ROM cartridge

Post by Fruitcake »

1024MAK wrote: ↑Sun Nov 11, 2018 12:54 am The two different cartridges are completely incompatible. They have a different number of contacts. And the contacts are wired differently.
Yes, physically they are not compatible.

mrtinb wrote: ↑Mon Nov 12, 2018 1:57 pm I see one major difference:
  • TS1510 is with area 8k - 16k
  • Chroma is with area 0k - 16k
The Timex ROM images could in theory be used with a ROM cartridge suitable for Chroma 81 by programming the first 8k with a copy of the TS1500 ROM and the second 8k with the ROM cartridge image. Each Timex ROM cartridge (or at least 3 out of the 4 that I could find to try) simply contains a payload that gets deployed into the 16K RAM as if it had been loaded from cassette. Supermath and States & Capitals are just BASIC programs, whereas Chess is machine code.

I've added support for Timex ROM cartridges, along with the 3 available ROM cartridge images, into the v1.33 EightyOne emulator.

I have not been able to find a copy of the Flight Simulation ROM to include. Does anyone have one?
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