gaqliving.blogg.se - Imsai 8080 emulator

It is possible to run the Arduino library as a component in the ESP-IDF environment.

The Arduino IDE for ESP32 doesn't let you control and fine-tune all the memory and network resource allocation like the ESP-IDF does.

Moving to the ESP32-WROVER with 8Mb of SPRAM helps a little, but it's still the internal memory that is the limiting resource.

Turning on WiFi in the Arduino environment on an ESP32 also consumes a lot of the ESP32s internal memory.

Running FabGL 800圆00 native resolution (800x300 scanline doubled) consumes a lot of the ESP32s internal memory. I'd already developed the modem code for the IMSAI8080 replica, so it was easy to integrate it into the VT132. I'd added most of the authentic VT100 features I could think of, and decided that since the ESP32 has lots of UARTS and WiFi, that I would include a Telnet over WiFi, 'AT' (Hayes) style modem on a second UART. In January 2020 I again tweeted about the VT132 because I'd started to play around with it once more. I then took a break from the VT132 while I worked to finish another little project - the IMSAI 8080 replica An ANSI/VT compatible, serially connected terminal with VGA output and a PS/2 keyboard.īut I wanted to extend his work and make a very authentic implementation of the DEC VT100 down to every reasonable detail.Ĭlearly from the prototype I'd already chosen the initial form-factor to be a "Designed for RC2014" expansion card for the RC2014 bus. I had put together a first prototype in time for mVCF - Melbourne (AUS)īack then it was simply the hardware implementation of the brilliant work done by Fabrizio Di Vittorio in creating the FabGL library for the ESP32. I first tweeted about the VT132 in March 2019

Stand Alone edition (Black PCB) # Overview