Important update of the SD HxC Floppy Emulator for Amiga users:
-> Write support added for Amiga !
Quote:
22/08/2010: Firmware SD HxCFloppyEmulator v1.3.0.0
- Amiga Write support added :
Note to the Revision B PCB owners :
To activate this new features you need to add a Microchip 23K256 SPI SRAM chip and 4 resistors.
The connection to do is :
23K256 pin 1 -> 220ohms resistor -> PIC18F4620 pin 22
23K256 pin 5 -> 220ohms resistor -> PIC18F4620 pin 27
23K256 pin 6 -> 220ohms resistor -> PIC18F4620 pin 28
23K256 pin 2 -> 220ohms resistor -> PIC18F4620 pin 29
23K256 pin 8 & 7 -> VCC3.3V (this voltage can be found at the capacitor under the sdcard connector or at the output of the regulator)
23K256 pin 4 -> GND
23K256 pin 3 -> Not connected.
(a 100nF capacitor is also recommended at the pin 8 of the 23K256)
After this modification you should see the message "SRAM OK" at power up.
More infos here:
http://hxc2001.free.fr/floppy_drive_emulator/index.html#SDCARDFloppyemulator