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    8 bit IDE (XTA) Replacement Project

    This is the newest XTA2SD design/version for the Tandy 1110. It does replace the HDD drive and will be connected with the original ribbon cable and does fit on the HDD place. Standard is the replacement for the 20 MB HDD, but with minor changes of the drive parameters of the Tandy BIOS it can...
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    8 bit IDE (XTA) Replacement Project

    Great job done, up to now I had no chance to test the XTA2SD on a Tandy 1110, due no chance to get one. Many thanks that you send me a machine for testing. I really look forward to it for doing the tests and any modification to run the XTA2SD also on a Tandy 1110. I'm thinking also of designing...
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    8 bit IDE (XTA) Replacement Project

    Please check which HDD drive is installed. I have no information of the HDD bus of the Zenith eaZy PC. Just have to check if the XTA2SD will work.
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    8 bit IDE (XTA) Replacement Project

    Yes, you can use e.g. a logic analyzer, I use the Saleae logic 16 type, it is great. But it is very difficult to extract only the relevant bus signals. So I have developed a very special one with 32 signals and does only trigger and store datas if relevant bus signals changed. It does store...
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    8 bit IDE (XTA) Replacement Project

    attached picture does show the connections
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    8 bit IDE (XTA) Replacement Project

    I could change the SPI speed, so the transfer rate is now 150 kB/s for writing, 220 kB/s for reading for the Pi Pico version, not far away from the Teensy versions speed, which are 220 and 260.
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    8 bit IDE (XTA) Replacement Project

    the newest prototype: PS2XT2SDsled. Could directly be mounted on the IBM HDD sled, and has the HDD activity LED.
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    8 bit IDE (XTA) Replacement Project

    DiskTest by James Pearce with the latest PS2XT2SD versions does show the following results. Pi: Reed 76 kB/s teensy: Reed 220 kB/s Pi: Write 126 kB/s teensy: Write 260 kB/s with both DMA for Read and Write (PS/2 - PS2XT2SD).
  9. C

    8 bit IDE (XTA) Replacement Project

    The latest development, the PS2XT2SDminiPi. And it works. A solid state drive with 112 MB ( type 9 ) for the IBM PS/2 25 or 30 or PS/1 with XT connector. This version has a Raspberrry Pi Pico instead of the teensy 4.1, which does reduce cost, but also speed . Reading speed is 1/5 of the teensy...
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    8 bit IDE (XTA) Replacement Project

    @pauloalb Yes, there is a way, but I have the 40 MB files already available. Please look at your SD-Card, there should be lowlevelfiles for 2 x 40 MB. If not, I will sent you an e-mail. If you want to have more MB, it is also possible, with just changing some bytes of the Schneider BIOS...
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    8 bit IDE (XTA) Replacement Project

    A few are available for sale, I allways sell them soldered and tested, as plug and play. Too many things can go wrong. Please sent an email to pw(at)basset24.de.
  12. C

    8 bit IDE (XTA) Replacement Project

    If they have the special Western Digital XTA Bus installed it should work.
  13. C

    8 bit IDE (XTA) Replacement Project

    The newest version of the PS2XT2SD card with 1,7 GB capacity. I have deleted the last video and make a new one w/o volkov commander.
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    8 bit IDE (XTA) Replacement Project

    The newest version of the PS2XT2SD card for an IBM PS/2
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    8 bit IDE (XTA) Replacement Project

    you can email me, look at the picture above...
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    8 bit IDE (XTA) Replacement Project

    The latest Version of the XTA2SD card for the Schneider euro PC I and II. Does replace the HD20 and can be directly connected to the euro PC to the HD20 connector. No extra power supply needed, power supply is taken through the XTA bus, w/o doing any hardware changes in the euro PC. The XTA2SD...
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    8 bit IDE (XTA) Replacement Project

    I think, that the card is only equipped with IC's for the XT-Bus, the missing IC's are probably needed for the FDC.
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    8 bit IDE (XTA) Replacement Project

    The XTA2SD Board does replace a XTA HDD and has the same fuction. Just as plug and play w/o any modification to the BIOS. The sectors are stored as files on the SD-Card, that was the easiest way to design. That has the restriction, that data exchange with the SD-Card has to be done with a FDD...
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    8 bit IDE (XTA) Replacement Project

    Probably the pico designer for the xta to SD card has give up. Can you show some more details of your PicoMEM ?
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