Home example 2 – Page 9 – techtravels.org

Amiga Floppy

inital results on error correction

While I have yet to actually implement the full-scale error correction as I want to, I did some manual tests today. I basically took a track that I was erroring out on, and swapped in 1-bit away values for the bad bytes. In some cases, it appeared...

keith

4 comments

Latest articles

Uncategorized

my minimig with 4mb upgrade and ARM controller

Finally got some time to play with minimig!
Of course there’s a great community at .

230 views

A501 Replacement Inactive

RTC Progress

RTC appears to be working and keeping the date and time across cold-starts. I picked the Epson RTC-72423 which is about a $6 chip, but is obviously directly compatible with the OKI Semiconductor MSM6242B. The design...

229 views

Badge Computer

Frame Buffer and Text Generation now working…

Now that I have the 4MB SRAM board installed, I now have a frame buffer that can keep up with the video bandwidth rate. The resolution and color depth is currently 800 x 480 x 12-bit. The computing shield I’m...

227 views

PAL REing

New Reverse Engineering PALs page

I’ve recently put a new page online on the site. It hosts a basic outline on different techniques to enable one to reverse engineering a PAL, and produce a modern equivalent. Right now, there are about a dozen...

221 views

Amiga Floppy Inactive

working FPGA version of the amiga floppy project

So, I’ve been working on the FPGA version of the amiga floppy project for some time. I just recently had a fair bit of free time, and so everything came together rather quickly! I’m now able to read amiga...

216 views

Amiga Floppy Inactive

results from adding the PJL

So, as I mentioned in another post, I added Jim Thompson’s phase-jerked-loop to the project. Phil had good luck using it with his DiscFerret, but it really didn’t help me. My problem disks are still...

216 views

Amiga Floppy

Logic Analyzers under $1000 comparison

I’ve put up a comparison of hobby style PC usb logic analyzers that cost under $1000.
Have a look!!

Thanks.beste online kasinos ist eine sehr interessante Unterhaltung.

211 views

Badge Computer

SRAM Frame Buffer is now up and running!

Exciting times for the Hope Badge Computer. Tonight, I’ve worked out most of the kinks with interfacing the new SRAM module which you can see in posts below this, to the J68 soft-core CPU. This means that I can...

207 views

Badge Computer

Trying to debug my design for an Audio DAC Cirrus Logic CS4334

I purchased a CS4334 to eventually use as an Audio DAC for the badge computer. I’ve never worked with DACs before, and my knowledge of audio is somewhat limited. This audio DAC is a Cirrus Logic CS4334 with...

202 views

Badge Computer

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!

202 views