83Plus:Software:usb8x/Asm Interface/MSD/MSD Initialize
Minimum usb8x version: 0.10
Initializes the USB mass storage device.
- HL points to a buffer for internal use (typically 254 bytes)
- DE points to a sector buffer (typically 512 bytes)
- C set if problems
- AF, BC, DE, HL
The exact sizes of each memory buffer can be obtained with the [[../MSDVersion|MSDVersion]] entry point. They will conveniently fit in a 768-byte buffer such as appBackUpScreen. However, it can be allocated dynamically (in this example with appBackUpScreen) as follows:
U_CALL MSDVersion ld de,appBackUpScreen push de add hl,de ex de,hl pop hl U_CALL MSD_Initialize
There are many reasons why this call would fail. offErrorCode will contain a more detailed error code.