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ChipMusic.org / Forums / Posts by Jazzmarazz
Thanks a lot. Where did you find this thing!?
...
So data_latch runs at 9.195 KHz just like Hsync but does not occur at the same time... that could definitely cause an offset image. I'll modify my eagle library and give it a shot tomorrow. I was busy watching X-Files all night and its bed time now. 
It looks as though the author 'may' be extending the pulse width of both H and V sync signals. I suspected that I may have to do as much but hoped I could find a way around it.
Jazzmarazz wrote:That is strange. I probably won't need to fuss with data_Latch until I get a steady image but I appreciate the input.
OK, but what I was trying to say is that it looks like you are already using DATA_LATCH (Pin 17) for horizontal sync?
And you might have more luck using HSYNC (Pin 18) instead?
What pinout are you using? All I can find are documents listing pin 17 as Hsync. I have not tried using pin 18.
Jazzmarazz wrote:
AWESOME WORK!
A couple of points that may or may not help:
HSYNC is on pin 18 (occurs at the same time as VSYNC). Pin 17 is DATA_LATCH (does not occur at the same time as VSYNC).
The first pixel for each row is clocked out while DATA_LATCH is high, and then there is a short delay before the remaining 159 pixels in that row are clocked out.
That is strange. I probably won't need to fuss with data_Latch until I get a steady image but I appreciate the input. Do you know if the pixel data remains at its value between that "short delay" or does it return to blank (00)? I assume I will find a stripe down the left side of the screen once I get a steady image?
Keep at it everyone. Im looking forward to hearing all of these.
bump. crappy video added.
goodnight
Oh boy oh boy oh boy! Mail is waiting at home!
Have you asked the authors of those videos what they use?
Parts will be here on Monday. Testing will commence.
oh cool...I have to think about this...
fixed for jeff
oops you're right. 
Picture printed in mirror.
EDIT:
Sitll a lot of problems to fix. Mostly related to sync; both horizontal and vertical. Not to mention the image is duplicated three times over. I found a similar issue described here:
http://shmups.system11.org/viewtopic.ph … 85#p863585
Maybe the issues are related to my sync combiner circuit or maybe I missed some connections on the board.
Updates to follow.
OLD:
Nice
Just got hold of a few of the older flash carts, including an EMS32M (GB SMART 32M) - Full support for this cart has been confirmed. Adding support for the obscure PocketVoice Cart in the coming days.
My Smartboy cart will be arriving soon so I'll code support for that too. I think thats just about all of the more common carts supported.
Still need to find some nanoloop carts to play with...
Do you still need a bleepbloop (nonUSB)? I keep putting it off. sorry.
Jazzmarazz wrote:Never mind. I don't have the space for this.
Me neither! I googled the drive and if it works ok they go for like $80 on ebay, just have no way to test it and dont feel like tracking down the parts.
I expected as much. Honestly though, I would have held onto it rather than selling it. Half of me wants to get it working and give it away for Xmas...ugh! Stop torturing me!
ChipMusic.org / Forums / Posts by Jazzmarazz
