User guide

1541 Ultimate User Manual

http://www.1541ultimate.net/

IEC 2 SD-Card drive / UI

The 1541 Ultimate offers a special ‘drive’ to enable you to manipulate SD Card access.

This special drive can for example mount D64 on the emulated 1541 drive. Since this

drive is NOT trying to emulate a real 1541 drive, but merely is meant as an interface to

work with from Standalone mode, it only allows a small set of basic commands. It will

allow you to LOAD and SAVE program files to the SD card, and send special commands

to manipulate the SD Card directly. Some commands can also be sent to the

1541 Emulated drive.

To communicate with the IEC 2 SD- card drive, you need to use the command channel.

In normal Commodore basic you type:

OPEN 15,id,15,”SDCOMMAND”:CLOSE 15

where id is the drive number for the IEC 2 SD drive, and SDCOMMAND is one of the

following possible commands:

AUTOMOUNTn Mounts the D64 image automatically in the emulated 1541

drive when an application is loaded from the image. n=0

(OFF) ; n=1 (ON)

CD:name Change the active directory. Use “..” for name to step out of a

subdirectory, use “/” to go directly to the root directory, or

type in the name of a subdirectory to enter it.

INITn Use this command to revive the drive that was turned off by

the KILL command. n=0 (IEC2SD); n=1 (1541)

KILLn This command temporarily disables a drive. n=0 (IEC2SD);

n=1 (1541). You can use the INIT command to revive the

drive.

MD:name Make a new directory on the SD Card with the specified name.

MD64:name,id Create an empty D64 image on the SD Card within the active

(sub)directory with the specified name and id.

MOUNT:name Mount the D64 in the emulated drive.

SCRATCH:name Delete the entry with the specified name from the SD Card.

SETSAVE Save the used settings to the 1541 Ultimate permanently

Un>dev Use the drive number specified by dev for device n. n=0

(IEC2SD); n=1 (1541).