Switching to KiCAD and the MAXI09 schematic

      No Comments on Switching to KiCAD and the MAXI09 schematic

Pretty much since I first started using it, about two years ago now, I have been struggling to “like” gEDA. To be fair, it has many positives. The schematic capture tool is not terrible to use. It is certainly quirky. The totally non standard keyboard shortcuts being just one example of this quirkiness. But it has, in my view, significant… Read more »

MuDdy and DISCo progress, and system reset generation

I have finally solved the issue with holding multiple FPGA designs inside a single configuration flash. It seems there is a special tool just for the purpose of creating complex program files (.pof files). The details are buried in this document. So this is great news, though since I only have one PLCC84 adapter made up I won’t be able… Read more »

Breadboard power solution and the start of FPGA dev board version 2

When working with solderless breadboard, one of the concerns is how to power it. Ideally I would have a nice bench PSU but, being cheap, I makedo without one. In the past I have stumbled around with various solutions, including using the power pins on a USB serial breakout board, using an AVR programmer header just for the purpose of… Read more »

FPGA woes

      No Comments on FPGA woes

This blog post is a bit unusual because all I’m able to write about are problems. In short I made up my FLEX6000 dev board but could not get it to function. Here it is in all of its glory: As you can see, I didn’t bother to fully populate it. The route cause of the problem, I suspect, is… Read more »

FPGA preliminaries

      2 Comments on FPGA preliminaries

This last few months has been a bit “scrappy” on the projects front. I’ve not made as much progress as I’d hoped but have started down several different fronts and have done a fair amount of reading. To learn about implementing a DMA controller, I initially started working on a new 6809 computer core on breadboard. In the end I… Read more »