Communication with OMA tracer

[gsmahesh]

I am trying to develope a program to get the shape data from the tracer via RS232. I am using Visual Basic as the language.After sending the shape at first I am getting like below

Then I send the request like
Second time I received the following information;

But still the shape data is not there. What request I have to send to the tracer for the shape. I am getting the information except the shape :)

Tracer : Nidek ICE1000

[dcf]

TRCFMT=3 is a binary differential format. The values sent will not appear as readable characters. The garbage characters immediately after the "R=" are probably the start of the trace data. If the routine that is reading the input characters is expecting printable ASCII characters, the binary data will probably cause problems. I don't know what formats the Nidek is capable of providing, but I would recommend starting with format 1. That one is a human readable ASCII format that will be a lot easier to get working. Once you have that, moving on to a binary format should be a bit easier.

Dave

[gsmahesh]

Dave,
What I know is this tracer provides only binary differential format. It is fine if I can get the data in the same(3). It just need a decoding. But as you said, I am getting incomplete information. The information is getting stopped when the right eye starts. I doubt that I need to modify/correct my request to the tracer.

[dcf]

I haven't used Visual Basic much, but as I recall there are different input mode configurations for handling text (ASCII) and binary data. That may be worth exploring.

[gsmahesh]

Beside from the programming side, I think my VCA request is not correct. I am expecting that if someone can suggest the right request.