I can send multiline interface commands but not data commands
hi
i am using a gpib controller.I cannot seem to find a way to switch between multiline commads and data commands.the key is the ATN bit as to send a DAB command the atn bit must be low. I cannot make the controller distinguish when a command is a adta command and not a multiline command,
sorry bit i did not know i could answer you directly.
i am using the measurement computing gpib controller cb7210.2 which is nearly ni compatabile.i am interfacing it with a microcontroller connected to the pc.Then i am trying to use a monitor program that is embedded in the microcontroller to perform remote access of instruments.i am using assembly. i have managed to communicate with the instrument.now the problem is that i cannot make the distinction between data commands and interface commands.for eg if i send 3Fh and atn happens to be 1 this is interpreted as UNL if atn is 0 then it is interpreted as data command.i need to be able to have control of the atn bit so that i can send either at will. so to problem is how to control the atn bit.
thanks
again
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