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I am still very satisfied with my TL866II Plus programmer. I suggest you don't buy a Genius G540 (clone) since the software does not work correctly. At least, that's my experience with that programmer and that's why it learned to fly

I have a few spare boards for the Electron Turbo that I am selling. Bare board: €3,00 Kit: €9,00 (board, 2x20p header, 1x40p socket, all smd components, no switch, cpld not programmed) Build board and tested (also without switch): €29,00 Install in Electron: + €20,00 P&P to UK: €9,00 (in envelo...

I have a few spare boards for the Electron Turbo that I am selling. Bare board: €3,00 Kit: €11.25 (board, 2x20p header, 1x40p socket, all smd components, cpld not programmed) Build board and tested: €32,00 Install in Electron: + €20,00 P&P to UK: €8,00 (in envelope, no insurance, no track&t...

Will this interview be recorded? I am not sure if I can make at that time...

Hello Tedd,

Welcome to this forum. Enjoy your visits here.

Greetings from the south of the Netherlands,
Roland

I know that the 1MHz bus can download data into RAM ( Hoglets Mandelbrot demo does it) but you can't run a complete sideway ROM on that bus. In theory you can copy the contents to sideway RAM but what if there is no sideway RAM?

I'd like to see the transmission speed a little bit higher, like 115,200 baud. So I started drawing a new diagram that connects a WiFi board to the 1MHz bus. It will have the same options as the Electron version except that it doesn't have a ROM. The ROM should be installed in a socket of the Beeb. ...

To keep this topic for sales only, I replied in viewtopic.php?p=308365#p308365

Responding to this post from Tom Seddon : There is no progress at the moment on this board. In this topic here there is a slight preference for the WiFi adapter at the 1 MHz bus. It involves however two issues: The 1 MHz bus has no internal power connector, how can the board be powered? There is no ...

I think that it is not relevant for most owners of a WiFi board because they have the module soldered to the board :mrgreen: I can try if the over-the-air update works in the current firmware.... The reason that I solder the modules on the board it that it won't fit in a Plus-1 slot when you use a s...

That's correct but the redesigned Atoms are different from the Atom-in-PC that I build in 1993.

I was 13 at that time and I had never seen a computer in real life. I only knew about computers from a popular scientific magazine "Kijk" (Look) that every month dedicated a page or two to computers like ZX81 and the progress of Apple Lisa and Sinclair QL. I can't remember if they ever wro...

My Pi Pico

Although this is intended for use by the cassette interface, I do wonder if any software makes use of it for timing, delays, or random numbers? I don't think it's (widely) used for timing and delays. BITD I had this Atom-in-PC card and it didn't have the 2400Hz signal, but it had an emulated 60Hz s...

Dave_E wrote: ↑

Thu Feb 11, 2021 11:46 pm

I'd like to have a go with one of these too. Also in UK. Let me know via PM or on my everygamegoing site.

I expect a box of components in the next couple of days and then I can finish a board for you. To be continued (by PM).

My cartridge arrived today and it’s amazing ! Installed and worked and downloading games. Has anyone worked out if it can be used to integrate with something to send a tweet ? Also, has any progress been made on a case for the board? I'm glad it arrived and that it works in your Electron. Actually,...

It divides the system clock (already divided by 16 in IC 44) to the 2400Hz clock signal for the cassette interface. We have VHDL equivalent sources for that circuit. It's nothing more than a clock divider.

scropp wrote: ↑

Fri Feb 12, 2021 9:23 am

I am glad you didn't say that you were specifically using the old firmware to get around some compatibility issue.

AFAIK are all used AT-commands still valid in newer versions, although it's recommended to use the newer commands.

I was tempted to upgrade it to the latest firmware but I don't have a spare without ripping another computer open, so I hesitated. I will probably overcome the hesitancy tomorrow sometime unless you can talk me out of it :D OK, here is my attempt to talk this plan out of you: don't do it :!: Re-fla...

In the Atom2k18 I power the Pi Zero through the gpio connector. I added a jumper to disconnect it. Any device connected to the Pi USB is powered by the Atom. So far no problems as I don’t power the Pi via USB. But when I do power through USB I think it won’t be a problem in this specific situation.

I wasn't able to get the escape key to stop the PRD command. Only break, or waiting till it hit the end seemed stop the dump. That said, I haven't tried again since fixing my soldering on the ram chip. Never heard of this issue. If the problem persists, what is your exact configuration (other hardw...

That is great news, I never got any response from them after asking about the boards.

Off topic, but not completely: There are also two other familiar item (back) on Ebay: https://www.ebay.com/itm/FPGA-Atom-2k18-Pcb-X1/184655981212 https://www.ebay.com/itm/Fpga-Atom-2k15-Pcb-x1-6847-Adapter-Pcb-x1/184656000470 This time the seller has listed them with my permission under my condition...

Yes, the CPLD files are on Github. It might be possible that I already programmed the EEPROM.

I don't want to disturb the current recording but I'm off to bed. Thanks to all the presenters, organizers and hosts for another amazing ABUG meeting with quite a lot of interesting subjects.

I tried your menu and it works fine. Do you also have programming languages like Pascal?

Welcome to this forum. Enjoy your visits here.
Greetings from the South of the Netherlands (about 40km from Aachen),
Roland

Welcome to this forum. Enjoy your visits here and please share the progress of your projects.

Greetings from the South of the Netherlands,
Roland

That's why he uses a level converter (line between first and second picture)

The CPLD supplies a 3.3v signal to the programmer so if the light is off or red that means the signal is missing. Is this correct? Which pin is it on a XC9536 or XC9572? I always connect the Vref pin directly to 3.3V as I am not aware about a "Vref" pin on the CPLD (but I only now Xilinx ...