purpose

    activate a user-controlled ioopback.

    syntax

    loop [ioopback]

    use

    1. to activate la ml or r ch ioopback, type:

    loop la ml[enter]

    loop r ch[enter]

    if you try to activate a second loop of the same type, you will see error 03 (test already in progress). you must deactivate the other test before you can activate the new one.

    2. to activate the l ch, ld ml, ra ml or rd ml ioopback:

    (1) set the dbg jumper to on, to select the debug mode.

    (2) type the desired ioopback activation command in the format illustrated in step 1 above.

    if you send the ioopback command without setting the dbg jumper to on, you will see error 20 (command is valid in debug mode).

    if you try to activate a second loop of the same type, you will see error 03 (test already in progress). you must deactivate the other test before you can activate the new one.