Project | Neon816 | Hackaday.io

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A couple revisions and a lot of work later.
10/21/2019 at 08:30 • 0 comments

It now boots into a Forth OS and is interactive over a serial connection. HP serial protocol analyzer is being used as a dumb terminal here.
On to Rev2 and manufacturing plan.
06/13/2019 at 14:02 • 0 comments

This is what the finished Rev1 looks like. There were some issues around the joystick port, and I've added a couple features for Rev2. I'm working on that now.
Video Generation!
04/07/2019 at 23:07 • 0 comments

So the video generation is working. DVI-D through a passive HDMI converter, to an HDMI small form factor monitor. Also, the CPU is running and executing code, and I used it to configure the DVI encoder via I2C.
Building and Testing
03/23/2019 at 12:40 • 0 comments

I'm working on building up the board. The FPGA is programming nicely, I've got the UART working, and I'm building up all the missing parts. Still waiting on a few connectors, and adding things as I test.
Oops decoupling.
03/21/2019 at 11:55 • 0 comments

Had a bit of an issue sending a bitstream to the FPGA. After some bug hunting, I realized it was just an electrical noise issue. Added a bunch more decoupling capacitors and now I can program it.
I'll fix that in the next revision.
It's alive!
03/20/2019 at 05:48 • 0 comments

I built up the power supply sections, and they're working. Then I tried to read the ID code from the FPGA - success!
I guess my first attempt at BGA soldering worked out after all.
Reflowed my first BGA!
03/17/2019 at 21:14 • 0 comments

I got my reflow oven working and attached my first BGA!

I didn't know how well it would work, so I only attached the 2 parts I absolutely needed reflow for. I'll hand solder things on as I need them for this board.
Boards arrived!
03/11/2019 at 18:08 • 0 comments

The boards are here! Now I need to figure out how I'm supposed to attach a BGA.
Also I need to dig out a proper camera and take a decent picture.