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Forum Index : Microcontroller and PC projects : VT-100 like terminal
| Author | Message | ||||
| Mark Regular Member  Joined: 26/11/2022 Location: United StatesPosts: 72 |
Is anyone aware of a project to allow a PicoMite VGA to work as a "dumb" terminal such as a VT-100? It would be an interesting project to wire up a PicoMite VGA as a terminal connecting to another Pico running MMBASIC without having to use a terminal emulator on a PC. Mark |
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phil99 Guru  Joined: 11/02/2018 Location: AustraliaPosts: 2200 |
Not a Pico but may do what you want. https://geoffg.net/terminal.html I built one long ago and it has been very useful. Edit. Programming the PIC32MX250 chip can be done with an Arduino Nano or Microbridge or MicroMite2 and pic32prog.exe https://geoffg.net/programming_pics.html https://geoffg.net/microbridge.html Edited 2024-12-26 08:48 by phil99 |
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javavi Guru Joined: 01/10/2023 Location: UkrainePosts: 309 |
This project can be easily ported to the PicoMite VGA/HDMI scheme https://github.com/dhansel/VersaTerm  |
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| Mark Regular Member Joined: 26/11/2022 Location: United StatesPosts: 72 |
Thanks for the info. |
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| axn1 Newbie  Joined: 27/12/2024 Location: GermanyPosts: 3 |
A dear friend of mine also has created a VT-100 VGA terminal for the Pico RP2040: PicoTerminal Features are: - different colour and screen resolutions, BW to RGB or RGBI, 1..16 bit - USB keyboard and mouse support - sound from buzzer to PWM to I2S (Soundchip emulation in progress) NB: This is my first post to the backshed, thanks for inspirations and greetings to everyone! |
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Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6948 |
From what I can tell (which is very little as C is like a completely foreign language to me) that looks like an excellent project. Thanks axn1, hello and welcome to the 'Shed! :) Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| dddns Newbie Joined: 20/09/2024 Location: GermanyPosts: 24 |
What do you think, could this be programmed in MMBasic in terms of speed and usability? Is anyone aware of a VT-100 like terminal emulation written in basic? |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6948 |
I suspect you might run into problems with parsing speed above 300 baud or so. MMBasic is interpreted after all. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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PeteCotton Guru Joined: 13/08/2020 Location: CanadaPosts: 375 |
I'm currently working on a Star Trek game (based on the old mainframe version), but as usual with my projects, it's getting a bit out of hand. The standard text font was giving me "PC" vibes (especially the lowercase g), and I really wanted "old mainframe" vibes. So, to help tug on the players nostalgia strings, I created a VT terminal font file for the CMM2 (complete with scanlines), which I'm guessing should work on other maximites too. You're very welcome to use it if you want. The font was based on the Windows font "Glass TTY VT220". Each character is 10x20, which gives 80x30 text in Mode 1 (800x600).  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01071820 0F3EF0C0 7FFCE187 FDF3CF3F FFDF7FFF 000000C3 00000000 00000000 02000000 8F3FF000 00E0F8F3 00000000 00000000 1C000000 FFFF1F1F C0077FFC 00000470 00000000 3C300000 8F3F3F3E 3CF8F0C3 F8C0030E F8C10F3F 3CE0033F 0F300003 DF7FFFC1 3FFFFCF3 7EFCF1C7 F0E0830F 8001071C 00000020 E0000000 F8FB8F3F 000020F0 00000000 00000000 80000000 00020820 02082080 08208000 20800002 80000208 FF030820 00000000 00000000 00000000 00000000 00000000 03000000 082080FF 20800002 80000208 00020820 02082080 08208000 00000002 00000000 00000000 00000000 00000000 00000000 End DefineFont |
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| Frank N. Furter Guru Joined: 28/05/2012 Location: GermanyPosts: 855 |
Hi axn1! The project looks quite interesting - unfortunately there is no ready-made .UF2 for it...  Frank |
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| gadgetjack Senior Member  Joined: 15/07/2016 Location: United StatesPosts: 150 |
Try this link. https://github.com/dquadros/RPTerm/tree/main The uf2 is in the build directory. Vga output and usb keyboard with a pico zero. I am gonna build one as soon as company has left. |
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| axn1 Newbie Joined: 27/12/2024 Location: GermanyPosts: 3 |
Well, the PicoTerminal is actually just one example of what can be done with the kilipili library. You would choose your board layout, e.g. where the VGA Pins are connected, how many colour bits you want, and then compile your own terminal.uf2. I will suggest to him to include a compiled .uf2 for one of the example reference designs given in kilipili/boards/. Best regards, AxN NB: @gadgetjack: this seems to be another project, the name is quite NOT unique... |
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| axn1 Newbie Joined: 27/12/2024 Location: GermanyPosts: 3 |
Kio has now saved an example PicoTerminal Release .uf2 for the vgaboard. He is happy for feedback and could create .uf2 releases for other configurations on request as well. On behalf of Kio and myself we send best wishes to all members of the backshed from Erlangen to a happy and peaceful new year! |
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| robert.rozee Guru Joined: 31/12/2012 Location: New ZealandPosts: 2362 |
have a look at this thread: https://www.thebackshed.com/forum/ViewTopic.php?TID=16545&P=1#214849 unfortunately the fellow writing the code (No0ne, https://github.com/No0ne/hid2cdc) lost interest. in principal, just by plugging together existing 'building blocks', it should be possible to have a picomite connected to a RP2350 board just through their USB ports, with the RP2350 providing: - VT102 emulation back to the picomite via CDC over USB, - DVI (over HDMI) video output (80x24 character), - USB keyboard input via a secondary USB host running on PIO blocks, - any other functions you wish to use the RP2350's spare GPIO pins for. ie, the picomite (non-video) would have all I/O pins unencumbered. the RP2350 would essentially be acting as if it were a PC running a terminal emulator, that the picomite was plugged into. cheers, rob :-) Edited 2024-12-30 20:49 by robert.rozee |
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