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visa bulk read problems

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Im trying to connect my PSoC 5 to labview via VISA USB, I have the drivers and everthing working fine. I started with the bulk.vi example and am able to transmit data and then mirror that same data back. my problem comes when I try and generate my own data. Im trying to write string data as uint8, I can tell that the VISA Read is seeing something when I send my data and then click the Bulk In button becuase if I dont send my data and press bulk in the program errors. Its almost like the read function is reading null.

 

any help would be great, im not super proficient with software in general but ill try and give you any more info you need.

Thanks


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