Texas Instruments used back in the day so called GROM or quot;Graphics ROM quot; chips. To my knowledge these are used with the TI and TI A computers and cartridges. They are weird ROM chips, with K of capacity each. In this video I present several boards I designed some months ago,...

   This video is an update about my StrangeCart project, a plug in cartridge for the TI A. The StrangeCart is many things packaged into one: A multicart cartridge, enabling many cartridge images to be loaded and run on the TI A. A TI Basic extension An accelerated TI Basic, running my...

   In this video I demonstrate a new feature of the StrangeCart project I had been working on: I wrote a BASIC interpreter for it, compatible with TI BASIC. Thanks to the CPU performance of ARM Cortex M CPU core, Basic programs now run times faster well even up to times faster . The BASIC...

   TI Basic is notoriously slow, even for simple things like listing a BASIC program. Here I demonstrate in a short video how this can be accelerated: the BASIC program is saved into the memory of the StrangeCart cartridge I have develop. The the video shows the use of a Basic extension ldquo;call...

   The TI A has turned years old. It’s time to boost its performance, by adding a new cartridge I’ve been working on. Powered by an NXP LPC microcontroller running at MHz, we now have a Cortex M processor core with hardware floating point unit, plus a Cortex M core attached to the...

   Here is quick status update of the icy FPGA core I rsquo;ve been working on. This is a quick and dirty video of the project, showing how it is connected to a Raspberry Pi running the TIPI disk subsystem for TI A. The FPGA board is the ULX S from Radiona. Discussion about this project is at...

   My Amstrad has a weird hardware problem, which I will attempt to diagnose. I hope it’s not the ASIC as opposed to the previous Amstrad CPC models, the plus series integrates many of the chips to one. It would be a bit difficult to replace don’t know where I could get a replacement from....

   Atari running on the collectorvision prototype.

   This video demonstrates running the Megademo on my FPGA system, this time with my TMS CPU core on the FPGA too. After a pause I started to work on my FPGA projects again, and the first goal for me was to fix problems the system had in running the Megademo. The video goes through the full demo...

   I’ve recently been getting back to hot hobby FPGA projects. Here the cool Megademo is being run on the TMS processor, and the rest of the TI A is implemented in my FPGA design. Apologies for not providing the full Megademo, the version loaded on the board is the one I created, which...

   Demoing my TMS breadboard with PNR rsquo;S VHDL implementation of TMS UART. Until now I’ve used my breadboard with an actual TMS chip, and the FPGA has done other functions such as chip select generation and memory paging. But now that the TMS is available in VHDL, this chip can be...

   TI A games with synth sounds MIDI Conversion done in real time with ET PEB. The discussion about the project is at AtariAge, currently at page : http: atariage.com forums topic eriks tiny peb page

   TI Memory map with ET PEB. In this video I talk about my ET PEB extension board for the TI A, show some of its features, and discuss the TI A memory map in general. I feel that the TI A system architecture is not very well understood by many. It is weird, and that’s why we love it

   My first four layer PCB design just arrived from China This is the second revision of my ET PEB project PCB as discussed at the AtariAge TI A forums.

   This video demonstrates the ET PEB for the first time. Here is shown the expanded memory working, as well as loading the expanded memory from SD card. The loading part is not shown on screen, the SD loading command is entered via the ET PEB shell running on a Mac, the connection to the shell is via...