Kung Fu Flash Cartridge

Quote from kim_jorgensen

Quote from oggie

I will order a cheap st-link, but it still makes me think something with the board is bad. I've double checked all solder joints under a scope and couldn't find any issues.

One simple thing to check is the voltage on the 3.3V pin when plugged into the USB port. You could also try to assemble another board to see if it has the same problem.

There is 3.3v coming out of the regulator. I tried to run dfu-util on both linux and mac with the same result. I also assembled another board and I'm seeing the same thing.

Here's the parts I ordered from digikey. I think they're all correct.

@oggie

At the beginning, I didn't have ST-LINK and hadn't been able to do the first programming through the USB port with dfu-util and DfuSe (in Windows environment). I checked if there might be a problem with the PCB or solder joints, but couldn't find anything. Then I bought an ST-LINK V2 and was able to do the programming. So it may not be a problem with your board.

Quote from Metallic

@oggie

At the beginning, I didn't have ST-LINK and hadn't been able to do the first programming through the USB port with dfu-util and DfuSe (in Windows environment). I checked if there might be a problem with the PCB or solder joints, but couldn't find anything. Then I bought an ST-LINK V2 and was able to do the programming. So it may not be a problem with your board.

Thanks. I have one on order and will try when it arrives.

Can someone tell me how good is compatibility with "official" Easyflash releases (available on http://www.csdb.dk ) on Kung Fu Flash cartridge?

Backbit cartridge has compatibility for "official" Easyflash releases of 55%.

Few EF releases worth trying on Kung Fu Cartridge that don't work on BB cartridge:

https://csdb.dk/release/?id=103750

https://csdb.dk/release/?id=108799

https://csdb.dk/release/?id=97811

https://csdb.dk/release/?id=117568

https://csdb.dk/release/?id=104387

https://csdb.dk/release/?id=175038

https://csdb.dk/release/?id=148379

Quote from CommFor

Few EF releases worth trying on Kung Fu Cartridge that don't work on BB cartridge:

That got me curious, so I put those 7 releases on my SD card and did a quick test. All of them seem to start fine. Of course I didn't play any of them extensively, but I could start the actual game on each. I also tried save/load successfully on Maniac Mansion.

Do you have any info on how exactly those Carts don't work on BB? Do they not start at all? Or just crash sporadically?

So does this look correct? I used automatic mode in stlink:

Looks normal, no happy ending?

Quote from Metallic

Looks normal, no happy ending?

Actually, yes. I plugged it into my c64 and I got the menu! It works!

Quote from Metallic

I've prepared a video for gaming and cross development using the USB connection of KFF.

YouTube link

[External Media: https://youtu.be/2IuOAAEOOeM]

kim_jorgensen thank you for sharing your knowledge about this cartridge. Waiting to see posibility to play multidisks games on it.

Metallic,

can you please help me force my windows-pc and EasyFlash3 to start *.prg like in your video?

BTW. It works when I use cmd command only:

ef3usb.exe e program.prg

If I try to run program.prg double click on it nothing happens.

Same situation when I try to run program.prg (right click, open with...) using ef3usb.exe

Sorry for offtop but Metallic yt chanel doesn't allow to write comments

PS. I have ordered one Kung Fu Flash.

Hi LeeBan. I recommend you to use Far Manager, I wrote the settings of it in the description of the video. You can use these settings for EF3 and KFF in the same way. But be aware that EasyFlash USB Utilities has different versions for these two devices. If something goes wrong, you better write a private message. Good luck.

Quote from Metallic

Hi LeeBan. I recommend you to use Far Manager, I wrote the settings of it in the description of the video. You can use these settings for EF3 and KFF in the same way. But be aware that EasyFlash USB Utilities has different versions for these two devices. If something goes wrong, you better write a private message. Good luck.

Works like a charm!

Thank you for your time adding more info to your yt video description.

This FAR is so powerfull. I am using total commander more than 10(?) or more years. In old pc era I used NC.

BTW... Didn't have to write COM3 word in the Execute command (used for Enter), like you suggested:

Quote

Far Manager settings
----------------------
F9\Commands\File Associations
In File Associations window, press Ins (Insert) to make a new association.
Edit File Associations window appears, make the following two entries.
A file mask or several file masks: *.prg
Execute command (used for Enter): d:\ef3utils\ef3usb.exe COM3 e "!.!" (edit this entry!)
Far Manager is now ready to transfer and execute a PRG file to C64 over the USB connection.

Display More

Maybe because my EF3 is recognized by pc like libusb (WinUSB) device.

Interesting, as far as I remember it didn't work when a COM port was not specified. I am currently moving out, let me take a look at this later. Enjoy the USB connection

I have also from Zadig the libusb (WinUSB) Driver. Works perfect

Quote from Metallic

Interesting, as far as I remember it didn't work when a COM port was not specified. I am currently moving out, let me take a look at this later. Enjoy the USB connection

Just for others.

Had to download from github: KimJorgensen/KungFuFlash/3rd_party/ef3utils/ef3usb.exe file. I see it's different file than I have used with EasyFlash3 because of size and "check connection and access permissions" error when I tryied to send *.prg via usb cable. Additionally I had to add COM12 to FAR file associations, like you wrote on your yt description. And of curse zadig-2.5 aplication helped me a lot to replace driver from usb to com. Thank You.

@LeeBan

Using Zadig, you converted EF3's WinUSB / libusb driver to USB Serial and you were able to use KFF version of EF3 USB Utilities (ef3usb.exe) with EF3, right?

Quote from Metallic

@LeeBan

Using Zadig, you converted EF3's WinUSB / libusb driver to USB Serial and you were able to use KFF version of EF3 USB Utilities (ef3usb.exe) with EF3, right?

Sorry for misunderstanding. I have both cartridges now. Kung Fu Flash and Easy Flash 3. Before I have tested you trick with EF3 (without COM in the file association) what I wrote four days ago. Now I am using KFF (with COM in the file association). I have received my copy of KFF two days ago.

No. I can't send any information to KFF when driver is converted to WinUSB / libusb driver. Only USB Serial works for me.

And I can't send any information to EF3 using KFF version of EF3 USB Utilities (ef3usb.exe).

What I made, thank's to you, and it's working for me, are:

For EF3 I am using ef3usb.exe 75728 bytes size program file and in FAR, file associations *.prg is:

...\Far\ef3usb_ef3\ef3usb.exe e "!.!"

windows driver is converted to libusb-win32(v1.2.6.0)

For KFF I am using ef3usb.exe 129536 bytes size program file and in FAR, file associations *.prg is:

...\Far\ef3usb_kff\ef3usb.exe COM12 e "!.!"

windows driver is converted to USB Serial(CDC)

BTW. I have stopped using EF3 thanks to KFF

I see. This clarification has been good for those who want to use the USB connection on both devices.

Hello kim_jorgensen,

the 'basic save into d64' feature seems stopped for a while (no activity on either branch since I issued the PR). Is it dropped, or just slightly delayed? If the latter, is there anything I could help with?

I see that feture as an enabler for d64 image transfer from/to SD card, using the menu.

Thanks

There are several comments about issues with the initial firmware flashing. I created some carts, all of them were initially flashed via USB. After checking the connections on the USB socket (with a well prepared USB cable...) the flashing always worked. I always start the flashing procedure by pressing the reset button on the KFF board.

As a matter of fact I use linux in virtualbox hosted by win10. After resetting the cart, win10 chimes it detected a new HW (if not detected immediately when connected). From that point it is selectable in VirtualBox and dfu-utils works properly in the linux shell.

Hope this helps (and I know this is not a silver bullet either...)