LCD Test image and pixel-level detail
So I’ve managed to get a semi-working test pattern image up on the LCD.
Here are a couple shots:
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Reverse engineering the LCD interface
So I was having trouble getting the LCD working initially, so I ended up probing a working HDMI to LCD converter board sold by adafruit. You see, this board was driving my LCD just fine, but my FPGA couldn’t do diddly. So I wanted to see what I was missing.
This proved more difficult because of these 40-pin FPC connectors. Not sure what the pitch is, but it’s really freakin’ close together.
With a lighted magnifier (3x diopter?), and sharp o’scope probe, I was able to isolate individual pins on the 40-pin, long enough to hit the stop button on the scope.
J68 boots VUBUG monitor on the BEMICRO MAX 10 FPGA board
Here’s an image showing a ROM monitor VUBUG running on the J68 softcore, which is in turn running on a BEMICRO Max 10 FPGA board.
VUBUG will be used until we can get our own (unwritten, so far) custom code booting!
Working on the User Flash Memory
So the Altera Max 10 FPGA we’re using has 256kbits of User Flash Memory. This is non-volatile memory that is built into the actual FPGA itself. This means you don’t need any external memory to get the FPGA to boot itself.
Launch of HOPE Badge Computer project
This is the first post of many in this category.
We have a project page giving the general goals of the project, but most of the hands-on action will happen here in the blog posts. For the latest status, reading these real-time blog posts will give you the best understanding.
We welcome feedback and commentary on the project.
Minor problems on techtravels.org email
I recently discovered a problem where email directed to techtravels.org accounts was bouncing.
It’s been fixed. If you’ve emailed something over the last couple months and didn’t get a reply, please try again.
Thanks
My Custom HP Logic Analyzer 16700A Cart
So after looking at the high priced real HP logic analyzer cart that didn’t look that great to me, I decided to build my own incorporating a ton of features that just really makes my life easier. This is optimized for use over cost.
My new i7-4790k Desktop build
I needed some more horsepower for my FPGA compiles, and because it’s been so long since my last PC build, I decided to take advantage of some free time I had, and build a new machine.
This machine is a quad-core i7 build with 32GB of DDR3 and (2) 240GB SSDs.
Memory controllers in FPGAs are the bane of my existence, help needed
I want to put together a softcore 68K computer system, just something simple.
I’ve purchased, but not yet received, the Terasic Cyclone V GX Starter Kit, an Altera FPGA eval board.
