Search found 2789 matches
- Sat May 17, 2025 11:10 pm
- Forum: Hardware
- Topic: New Q60 Boards
- Replies: 102
- Views: 9479
Re: New Q60 Boards
It is 18x18, 223 pins, of which 17 are unused in general, further 29 are unused in my design. The PCB has holes for all 223.
It would be cool to have a one-piece socket. How do you press the pins into the nylon carcase? Manually?
On smaller single pieces, yes. If I get an order for a quantity I ...
- Fri May 16, 2025 11:56 pm
- Forum: Hardware
- Topic: New Q60 Boards
- Replies: 102
- Views: 9479
Re: New Q60 Boards
The original machine is purely made from throughhole type components. It will still be possible to have them machine soldered, but that has become very expensive. Various components are obsolete, but available. The CPU socket is not available, and needs to be "tinkered" - or the CPU soldered ...
- Tue Jan 14, 2025 4:44 pm
- Forum: Hardware
- Topic: Tetroid Super Gold Card clone oddness
- Replies: 7
- Views: 1109
Tetroid Super Gold Card clone oddness
Does anyone know why the Tetroid clone SGC skips the parallel printer port? On my machine, the printer port code is still in the ROM image and a program trying to uses it causes the computer to hang, which is quite reasonable behavior I think.
Is the printer port supported in his INGOT version ...
Is the printer port supported in his INGOT version ...
- Tue Jan 14, 2025 4:35 pm
- Forum: Help for New Users
- Topic: Eprom board?
- Replies: 30
- Views: 4154
Re: An eprom board concept?
Extending on this idea, bringing out a separate write protect switch out to the front so there were 4 dip switches, you could have a ROM image in one slot and RAM accessible in the other 3 slots, giving you a nice 48K spot to stick data or an executable or whatever. A ROM slot like on the back of ...
- Tue Jan 14, 2025 4:32 pm
- Forum: Help for New Users
- Topic: Eprom board?
- Replies: 30
- Views: 4154
Re: An eprom board concept?
The easiest way to accomplish this is with a 128Kx8 SRAM and a CR2032 as backup power. The battery would hold the contents in SRAM for around two years of standby time. A jumper could enable or disable the write lines to protect the ROM images.
One refinement would be to have TWO CR2032s so they ...
One refinement would be to have TWO CR2032s so they ...
- Tue Jan 14, 2025 3:43 pm
- Forum: Hardware
- Topic: QIMSI Gold - getting started
- Replies: 79
- Views: 9782
Re: QIMSI Gold - getting started
Thank you. This answered my question precisely and exquisitely.
I had in mind the possibility of moving the QIMSI Gold to the expansion bay and a different logical slot but this is irrelevant as you demonstrate. I was looking at the options to add hardware support for other Gold Card functions like ...
I had in mind the possibility of moving the QIMSI Gold to the expansion bay and a different logical slot but this is irrelevant as you demonstrate. I was looking at the options to add hardware support for other Gold Card functions like ...
- Sun Jan 12, 2025 6:49 pm
- Forum: Hardware
- Topic: QIMSI Gold - getting started
- Replies: 79
- Views: 9782
Re: QIMSI Gold - getting started
Is the QIMSI fully relocatable?
Can it be plugged into any logical ROM slot?
Will it recognize other inserted ROMs in other slots?
I have an expansion card that has four ROM slots on it, mapped to three expansion slots and the original back slot location.
Can it be plugged into any logical ROM slot?
Will it recognize other inserted ROMs in other slots?
I have an expansion card that has four ROM slots on it, mapped to three expansion slots and the original back slot location.
- Wed Jan 08, 2025 6:58 pm
- Forum: Hardware
- Topic: RP2040 replacement for IPC ?
- Replies: 31
- Views: 8995
Re: RP2040 replacement for IPC ?
The RP2350 can pump out 2400Mbits/s+ using PIO to the HSTX interface with 0% CPU involvement or utilization. The B revision has more than enough GPIO with 48 available and three PIO engines that can access any/all of those pins in parallel and can do DMA accesses without CPU involvement. It has an ...
- Sun Jan 05, 2025 8:50 pm
- Forum: General QL Chat
- Topic: Forum font
- Replies: 9
- Views: 1556
Re: Forum font
Glad you’re all sorted.
- Sun Jan 05, 2025 5:57 pm
- Forum: General QL Chat
- Topic: Forum font
- Replies: 9
- Views: 1556
Re: Forum font
ALT+ and ALT- increase and decrease font size on a per website basis.