Recent Posts

Address decoding

3 minute read

Before writing any software for Y Ddraig the CPLD will need to be programmed. The CPLD being used here is a Xilinx XC95108 and it is responsible for the addr...

PCB Populated

less than 1 minute read

It’s been a while since any updates but some progress has been made. I’ve populated one of the PCBs and powered up the board. All seems fine so the next step...

PCBs delivered

less than 1 minute read

I have recieved the new PCBs. Ordered from https://jlcpcb.com/. Initial inspection shows the boards seem to be fine. Next step now is to start building up o...

PCB design re-started

less than 1 minute read

After a long break from the project I have decided to restart the design making a few changes to the board.

Problems with the PCBs

1 minute read

Started to assemble the first circuit board and run into some immediate problems. It turns out that there is a short circuit between the 5V and GND planes on...