August 2nd, 2017, 21:22
chrisfoster wrote:fzabkar wrote:
No, such bridges are used in adapters which connect a USB host to an IDE ATA/ATAPI device. You need to go the other way round, ie you need to connect an IDE/ATAPI host to a USB peripheral. Such adapters are very rare.
Not even this reference board? It also provides a TUSB6250 hardware reference design for connection to an ATA/ATAPI device such as a hard disk drive (HDD), ZIP drive, magneto-optical drive (MO), ORB, CD-ROM, CD-R/W, DVD-ROM, or DVD-RAM.
http://eicom.ru/pdf/datasheet/Texas_Ins ... 0DEMO.html
2.2 Hardware Installation
The following parts/devices are needed to set up the demonstration board:
- Hi-speed USB cable
- ATA/ATAPI device (HDD, CDROM, DVD, etc.)
- ATA/66 ribbon cable, 40-pin, 80-conductor cable
- Power source for ATA/ATAPI device
- PC or Mac with USB host controller or PC/Mac with USB onboard host
controller card. A high-speed host controller is required for high-speed
operation.
August 2nd, 2017, 22:03
August 3rd, 2017, 0:48
August 3rd, 2017, 6:59
August 3rd, 2017, 9:52
August 3rd, 2017, 9:58
HaQue wrote:https://www.indiegogo.com/projects/sd-atapi-conversion-adapter-for-roland-sp-808ex#/
http://www.ebay.com/itm/271723278972
August 3rd, 2017, 15:22
chrisfoster wrote:The CPR Tools USB to IDE Adapter was designed for our products, such as PSIClone, as a USB to IDE pass-through adapter. The adapter is only supported for our products such as PSIClone, Hammer, and Sledge Hammer.
As for your question about the Zip drive, the adapter will not emulate the drive. If the adapter is connected for use with our devices (PSIClone, Hammer, and Sledge Hammer) and the Zip drive can be seen as a mass storage device (like a hard drive or USB flash drive), then the PSIClone with the adapter will have a good possibility of being able to communicate with the Zip drive
August 3rd, 2017, 17:59
IISDMC for the XL. This is an internal ATAPI product found here, here, and elsewhere.
http://www.amtron.com/reader/iisdmc.htm
http://www.psism.com/iisdmc.htm
Addonics IDE Ultra DigiDrive, internal, MPC2000XL only.
http://www.addonics.com/products/flash_ ... idrive.asp
The ATAPI models, like the IISDMC and Addonics ...
August 3rd, 2017, 20:32
fzabkar wrote:although the links to the two ATAPI products in the following article are dead, I'm wondering if it might help to see a photo of the chip(s). Do you know of anyone who might be able to provide such info?
August 3rd, 2017, 21:14
August 3rd, 2017, 21:44
I found that for the IDE/CF convertor i needed to have the FlashRom mode set to ReWrite Mode (jumper pair 8 connected)
August 3rd, 2017, 22:46
August 3rd, 2017, 23:10
August 4th, 2017, 1:47
HaQue wrote:anyone got any firmware I could disassemble? Might help to have a look at what it is doing.
Also, are there difference, drivewise, of the SP-808 and SP-808EX? Also which one is th OP asking about for this project?
August 4th, 2017, 9:33
August 4th, 2017, 10:07
There are reports of CF card drives that work in the Roland SP-808 but no confirmed reports of exactly which drives or adapters. This is a huge thing if a CF or SD card adapter can be found for the Roland SP-808 Sampler. I’m not expecting it work really as so many adapters have been tried on the SP-808 and it’s been reported the OS firmware is the reason behind all the failed attempts.
I think the issue of CF modding the SP-808 is that it MUST be an ATAPI compliant IDE interface’d CF adapter unit. ATAPI is the same as CD/DVD/Tape and of course ZIP drives.. they all have one thing in common, they can eject their media. When you get a standard IDE to CF adapter, it wont work.. especially on the SP 808.
The ATAPI Flash Memory Card Drive (P/N ATGx-CFxx) is a CompactFlash to ATA/ATAPI Flash memory card drive which adapts True IDE CF Card(s) in either Type I or Type II form factor to a standard solid state / non-volatile Flash ATA/ATAPI drive.
August 4th, 2017, 10:25
HaQue wrote:When he started playing with the D-Beam (Theramin?) my dogs went berserk
August 4th, 2017, 10:56
fzabkar wrote:Is there any bridge IC that connects a USB device or memory card to a SATA host in ATAPI mode? If so, then you could use an adapter based on such a bridge, and connect this adapter to your Roland via an intermediate PATA-to-SATA bridge.SP-808 <- PATA-to-SATA bridge -> <- SATA-to-USB-or-memory-card bridge -> USB device or memory card
I would think that the best chance of finding an ATAPI adapter would be one which supports SD/MMC cards, not just CF. CF relies on ATA commands (which require no translation) whereas SD/MMC uses a different command set
The RockBox site is very useful because users have uploaded the results of the ATA Identify Device command (ECh) for several ATA devices. In your case I would be testing prospective ATAPI candidates with the Identify Packet Device command (A1h)
The IISDMC ATAPI card reader handles CF cards, so it must convert them from ATA to ATAPI. This requires "smart" intervention rather than mere physical connector conversion
As for the ATG device, there are some reasonable photos in the following eBay listing. Clearly it's not a passive adapter, so it could potentially be an ATAPI device. However, I can't make out the chip numbers
BTW, the SP-808 technical manual has firmware upgrade instructions. AIUI, you can do this in two ways -- either via a Zip disc, or via the MIDI interface with 8 floppy diskettes.
August 4th, 2017, 15:59
August 4th, 2017, 16:19
Since the SP 808 OS code only supports ATAPI IDE, that is why you can never get a fixed HD to work in one. You could get it to work if you custom altered the OS code itself.. or use the A6 OS code that has the IDE HD support code in it.
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