IDE emulation: Difference between revisions
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=== !!! This functionality is considered ALPHA and must not used with important and/or valuable data !!! === | === !!! This functionality is considered ALPHA and must not used with important and/or valuable data !!! === | ||
The '''Mega-ST version''' of the ATW800/2 offers a IDE harddisk emulation using the MicroSD card slot on the FPGA piggyback module (NOT the external MicroSD slot at the edge of the card!) | The '''Mega-ST version''' of the ATW800/2 offers a IDE harddisk emulation using the MicroSD card slot on the FPGA piggyback module ('''NOT the external MicroSD''' slot at the edge of the card!) | ||
With firmware V1 on, the VME cards can use the IDE interface too - but only in | With firmware V1 on, the VME cards can use the IDE interface too - but only in conjunction with HDDRIVER 6.12 and later. <br> | ||
Additionally the functionality on VME machines is very limited. | Additionally the functionality on VME machines is very limited - on top of that the ATARI on-board SCSI interfaces are faster. | ||
While other hardware solutions use a off the shelf controller, the ATW800/2 emulates an SPI-to-IDE interface inside the FPGA which is 'written by the book'. | |||
From a collection of ~10 microSD cards we tested, just two of them do work fine. A 4GB SanDisk and a 8GB Intenso (white-label brand) - so your mileage may vary. | |||
For now, see IDE as a future option which might or might not work with your current microSD card. | |||
It's also not the fastest at 800-900kbps. There are other dedicated IDE interfaces out there which we never intended to replace. | |||
Please refer to the manual for the how-to and procedure. | Please refer to the manual for the how-to and procedure. | ||
Latest revision as of 10:09, 28 May 2026
!!! This functionality is considered ALPHA and must not used with important and/or valuable data !!!
The Mega-ST version of the ATW800/2 offers a IDE harddisk emulation using the MicroSD card slot on the FPGA piggyback module (NOT the external MicroSD slot at the edge of the card!)
With firmware V1 on, the VME cards can use the IDE interface too - but only in conjunction with HDDRIVER 6.12 and later.
Additionally the functionality on VME machines is very limited - on top of that the ATARI on-board SCSI interfaces are faster.
While other hardware solutions use a off the shelf controller, the ATW800/2 emulates an SPI-to-IDE interface inside the FPGA which is 'written by the book'. From a collection of ~10 microSD cards we tested, just two of them do work fine. A 4GB SanDisk and a 8GB Intenso (white-label brand) - so your mileage may vary.
For now, see IDE as a future option which might or might not work with your current microSD card. It's also not the fastest at 800-900kbps. There are other dedicated IDE interfaces out there which we never intended to replace.
Please refer to the manual for the how-to and procedure.