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USB dev cart project

antime - Mar 24, 2012

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		cafe-alpha	Mar 2, 2015
		> Is this forum still active? Yes.

		antime	May 20, 2015
		I updated the cartridge firmware to take advantage of DMA when transferring data to the Saturn. When uploading to workram-L, the speed increased from about 320KB/s to 430KB/s, and when uploading to workram-H the speed increased from about 370KB/s to 590KB/s. I also added a "run" command to the ftx tool, which calls the specified address without having to upload anything. The code is available on GitHub....

		vbt	May 20, 2015
		antime said: I updated the cartridge firmware to take advantage of DMA when transferring data to the Saturn. When uploading to workram-L, the speed increased from about 320KB/s to 430KB/s, and when uploading to workram-H the speed increased from about 370KB/s to 590KB/s. I also added a "run" command to the ftx tool, which calls the specified address without having to upload anything. The code is available on GitHub.... great  job antime !

		cafe-alpha	May 22, 2015
		antime said: I updated the cartridge firmware to take advantage of DMA when transferring data to the Saturn. When uploading to workram-L, the speed increased from about 320KB/s to 430KB/s, and when uploading to workram-H the speed increased from about 370KB/s to 590KB/s. I also added a "run" command to the ftx tool, which calls the specified address without having to upload anything. The code is available on GitHub.... An update nearly 3 years after initial release oO Thank you antime ! USB dev cart is now something like 25 times faster than Action Replay !

		antime	May 22, 2015
		I was bored... In practice the difference isn't really noticeable, since the uploaded files are so small.

		cafe-alpha	May 29, 2015
		antime said: I was bored... In practice the difference isn't really noticeable, since the uploaded files are so small. Yes, it's something like filling both hram and lram takes something like 5 seconds instead of 6 seconds ... but... Edit : I prepared your new firmware for my USB dev cart I plan to use it next week or so.

		cafe-alpha	Aug 19, 2015
		Oops, I forgot to reply to this thread :     [11:24:26:458]21>Transfer Time = 1060 msec(s) (737060 bytes). [11:24:26:462]21>Average transmission speed = 695.339623 KB/s (420 KB/s with non-DMA transfer code) Speed difference isn't really noticeable, but good job anyway :]

		mrkotfw	Sep 13, 2015
		What is the licensing on the ftx tool?

		antime	Sep 13, 2015
		2-clause BSD (the license text is the first thing in the source file).

		mrkotfw	Sep 13, 2015
		Ow, how embarrassing. I have that habit of looking for the LICENSE file and not looking at the source files. Thanks.

		mrkotfw	Sep 17, 2015
		Using FT D2XX library, would there be any reason as to why reading intermittently blocks despite setting the RX timeout to a low value? I set the USB in/out payloads to the same values as in antime's tool. Any guesses?

		vbt	Mar 16, 2016
		just dumb question, what's the way to get game saves with the usb dev cart ? i did that with old tool and my isa card and maybe it was possible with the usb data link.

		cafe-alpha	Mar 16, 2016
		From command line : USB Data Link : SatLink.exe usb_data_link.ini -bs test.bin USB dev cart : SatLink.exe usb_dev_cart.ini -bs test.bin From GUI : Select which device to open (USB Data Link or USB dev cart) in tool bar -> "Open" menu, then click "Receive Backup Memory" in tool bar -> "Receive" menu.

		vbt	Mar 16, 2016
		cafe-alpha said: nice but is there something better ? i mean you choose the game save you want to get

		cafe-alpha	Mar 16, 2016
		vbt said: Something like in yabause's save manager ? No, sorry. The only way to do this is to use both SatLink and ss-save-parser tools ... I can add such feature to SatLink, but I would like to know how many people are interested in such feature before coding it.

		zone66x	Mar 30, 2017
		Hi all, Just posting that I've been working on a case for cafe-alpha's USB dev cart. This was specifically made for version 3.2 of the USB Dev Cart but it also works for revision 2f and probably other revisions. Here's some pictures: I will be posting on thingiverse at some point. Enjoys. ^_^

		cafe-alpha	Apr 4, 2017
		Some people may wonder why the case has such weird "square" shape : it's because the PCB for my "USB & Gamer's Cartridge"... is larger than other cartridges : 100mm x 100mm, vs 100mm x 77mm usually. I plan to re-design the PCB for "USB & Gamer's Cartridge" so that it can fit in Action Replay case. Priority for this re-design job is relatively low, but this will be done someday

		SegaSaturnShrine	Apr 5, 2017
		zone66x said: While your doing all this 3d printing, do you think you could do me a huge favor and 3d print me a 3d printer so I can join in on the fun? XD. If only it worked that way hahaha, keep up the awesome work though!

		zone66x	Apr 5, 2017
		SegaSaturnShrine said: Actually.... https://3dprintingindustry.com/news/build-3d-print... Still can't print motors and other parts but it's getting there

		SegaSaturnShrine	Apr 9, 2017
		hahahaha that's awesome!

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