keith
I don’t know how interesting this is, but I thought I’d throw it up anyways. I exported the posts and comments tables from the mysql database, imported into Excel, and then created an activity graph of the...
feasability of writing disks
While there are some other bug fixes and documentation to be done on what’s already been implemented, I started thinking about writing ADF’s to disk over the last few days. While the hardware part of it is...
first real world tests
Well I tried to read about 70 disks in via my project tonight. I had mixed results. First, the Teac loves HD media but doesn’t fare as well with LD media. The Samsung hates HD media, but does very well with LD...
HD media, low-density format disks now readable by Amiga Floppy Project
Good news. Got my Teac FD235HFC291/s which is now discontinued. Just as Jens suggested, it works perfectly to read HD media that is formatted low-density. No need to cover the hole, etc, it just works. I read two...
mail issues from the blog
I dunno how or why, but there were problems with the outbound mailing from my blog. In any even, I’ve added a new plugin, and everything is working much better. If there are any complaints, problems, etc please...
problem with high density disks
I’m running into an issue with HD, high density, floppies. The output on the scope looks just fine, but I get a consistent bad checksum on all the tracks. I’ve tried with and without covering the HD hole...
intermittent problem found
I was just putting some finishing touches on this before I started to actually use and archive some of my stuff. To put it to an actual real world test. Anyways, I tested an ADF generated ADF against an amiga...
great performance increases
Today I’ve worked on optimizing the performance of the AFP reader and have made great strides. My original track times were nearly 475ms. This was 300ms reading the actual disk, 125ms transferring, and process...
Halloween 2007 AFP updates
DTR-based PC to SX flow control is now enabled and working, thanks to jd2xx. It has been tested, and SX responds appropriately to a STOP request. Strangely, with the new jd2xx code, it doesn’t appear that flow...
changed from rxtx to jd2xx
Okey dokey. I’ve changed from rxtx to jd2xx. rxtx didn’t support DTR/DSR flow control, which really is an absolute must for my application. There would have to be hardware changes that I’d be...
Flow control
I’ve gotten away thus far without any flow control. I just started noticing that my software was locking up occasionally when reading a disk. It was locking up in the “read” portion of the code because...
basic schematic
I put up a rough schematic of my design. It’s not perfect, and will be updated in the near future, but if you are interested.
Click the image below for a full size image.
heat problems
As I alluded in an earlier post(s), my SX28 has been pretty warm. After doing a number of different tests, I’ve now ordered an infrared thermometer from amazon for $29.99. I want to find out exactly how hot this...
data rate vs throughput
Although I’m transmitting from the Parallax SX microcontroller to the PC via USB at a data rate of 2mbps, the actual throughput is much less. First, there is some overhead, namely start and stop bits, which is...
RXTX and Java
As I mentioned before, I’m using RXTX to do serial communication in Java since Sun has dropped support for serial communication under the Windows platform. I want to revamp my read routines on the java side...
java software updated
Tonight I’ve finally got around to adding a config file option so that you don’t have to keep selecting a comport to open. It also remembers your “number of retries” before skip options. Simply...
AFP 0.2 WIP SX code
I’ve put some work into cleaning up the SX code tonight. I’ve removed some code sections no longer needed, and added documentation where it was lacking. Code should be commented pretty good. I’ve also...
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.
