SpritesMind.Net

I have tried CY7C68014A and CY7C68013A, and both work fine, so your swap shouldn't cause problems. Do you see the same behaviour if you remove the EEPROM links from both boards? Can you compare the levels on all pins, comparing the working board with the non-working board? That might give us a bette...

Ooops, sorry about the magic numbers! I should fix that. Basically, CMD_RUNNING=0 --> MD is busy executing a command CMD_READY=1 --> MD is ready to accept a new command CMD_REQUEST=2 --> Host has written a new command for the MD to execute commandLoop: cmp.w #2, cmdFlag /* see if host has left us......

Just curious if anyone has been able to send data outa via the high speed USB port yet. Any examples or even a hardware register list perhaps or read/write rules when accessing the USB port? All the MD-accessible hardware registers are described here . Architecturally, there is no way to directly s...

As far as I'm aware, nobody is planning to do a manufacturing run. In fact, there seems to be very little interest in the project in general. You might be able to whip up some interest from the community to get a manufacturing run together, but I should warn you that in the past this has unfortunate...

Yup, just wondering if that will be enought to use the UMDK tools into windows... IIRC the 20151220 release works natively on Windows. The main barrier to entry has been the debugger front-end for GDB (i.e instead of DDD), but I believe Visual Studio now provides a suitable front-end. I posted abou...

I brought my Genesis 3, and sure enough UMDK has no problems on it. Ah, interesting. Presumably that's an NTSC machine? If so, that breaks the theory that it's a timing issue. At this point it looks like the MD1 is generally not compatible. I don't think I've heard of an MD2 or MD3 or Nomad not wor...

I may not have been clear enough in my post, but I stated that if I use my PCB (as opposed to his) it works without any issues. I've tried it as root, which didn't help. I will see if hwinfo shows anytihng useful though. But your PCB has had the FPGALink firmware installed, so it'll enumerate as an...

Unfortunately, we're stuck That looks like some other kernel module has grabbed the FX2 device. Did you remember to do the usbtest blacklist and reboot as described at the end of step 1? You can find out which driver is grabbing the FX2 like this: $ flcli -i 04b4:8613 -v 1d50:602b Attempting to ope...

So, this all about AS timings everywhere. In UMDK you can just delay it by some ticks of FPGA clocks. I already tried that (with /C_OE, which is the signal actually used as a strobe, unlike /AS, as we discussed earlier). See these two posts for details: http://gendev.spritesmind.net/forum/viewtopic...

I can see in your photo some drag-soldering "icicles", so there are probably shorts between pins. What happened to the "needle & microscope" approach I suggested? I know it's boring, but so's having to start again!

I cannot see any issues...trace is here: That's great, thanks for testing. My theory is that since mikejmoffitt is using a US machine, the core clock speed will be slightly faster, so the DMA cycles are slightly shorter, and the UMDK memory-controller isn't quite fast enough to have the data ready ...

It would, if it didn't hang. I don't know why [lsusb] hangs. I hope nothing else hangs. What do you see in /var/log/messages when you connect the LX9 board? What to you see when you subsequently disconnect it? If you try lsusb on a fresh boot before connecting the LX9, does that hang? If not, what ...

I've been testing on my Everdrive, which has been fine. I haven't burned it to an EPROM cartridge yet but I don't expect it to be particularly different. OK that definitely sounds like a UMDK bug/problem. Anything that works on an Everdrive should work on a UMDK. Can you give more detail about prec...

mikejmoffitt wrote:These problems manifest themselves as visible graphical errors

Have you tried this game on a real MegaDrive previously (e.g using a flash-cart), or have you only ever tested it on emulator?

mikejmoffitt wrote:I've been out of the loop, I was going on the page 1 instructions still. That's great binaries are available, I'll have a go at that soon.

OK, I removed the "how-to" posts, to stop it confusing anyone else. Good luck!