Dic 19 2024, SPIISD is preparing to move to V2. If you want to try V1, you can buy the DIY kit. We also have a fully assembled one. Mini and DIY have the same functions
 
Important note when using with IIcPlus: It is known that the V1.16 firmware cannot be used with the IIcPlus. The products we ship from now on will have the new V.1.17 firmware, which we believe is the perfect firmware that has been tested on Apple IIPlus, IIe, IIc, IIcPlus, IIgs ROM01 and ROM03.

The SPIISD SD card is now ready. It already has some images installed on it, and is set up so that four images can be booted.
/8 USD

USAGE:  
Use a FAT32(16) formatted MicroSD card. Most of the MicroSD cards currently on sale can be used as is. 
 
A PDF file with detailed usage instructions is available  here
 
As we have upgraded to V1.16, the new method for setting up the SD card is described below. From v1.16 onwards, if "config.txt" is not placed in the root, it will be automatically recognized and converted to the old method. Please refer to chapter "2, Old method "when "config.txt" is not placed.
The sample file for the SD card created for V.1.16 is here. Unzip it and copy/paste all the contents to the root of the SD card. It should work as is. It's perfect for learning about new firmware V.1.16 structure.
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Important Notes:
If you want to use SPIISD with "Apple IIgs", it has been found that the V1.16 firmware does not work well with older Micro SD card. This is because there is known to be a slower latency when loading files from the config, so if you are using an older card it may not load as a startup disk.
If speed is not an issue, ROM01 and ROM03 IIgs have been found to work well.
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For Apple IIc 255 ROM
 
Smartport will not be enabled if ROM 255 is installed. To check the ROM of your IIc, run the following program from the Basic prompt.
PRINT PEEK (64447) 
If the output number is "255", the ROM needs to be replaced. Please purchase the ROM flashing service ROM4x ($8)separately if you don't have a ROM programmer. Installing ROM4X requires replacing the ROM (DIP28 pin) and changing the solder jumpers of W1 and W2. It is written in detail here.
Here for YouTube on how to replace IIc ROM with Javier A. Rivera.
https://www.youtube.com/watch?v=v025Jb-Ebnc
 
*Regarding ROM4X license, we contacted Michael Guidero, the author of ROM4X, to obtain permission. But this is an open source project, if you have a ROM programmer you can also create your own ROM.
 
Notes:
 
・SPIISD MINI operates on db19 +5V power, so no additional power supply is required.
・Please do not connect or disconnect the connector while the Apple II’s power is on. In the worst case, the Apple II's IWM chip dies.
・Although there have been no reports of MicroSD card compatibility issues, there may be some MicroSD cards that are incompatible. If it is not recognized, please prepare another MicroSD card.