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bytes missing in serial communication UART - NI Visa READ

hello everyone,

                     I am using NI Visa read to transfer data from microcontroller to laptop using write-to-binary-file.vi... I have observed a very weird phenomenon, in the fact that some bytes appear to be missing from the data-file. this however, does not occur for all laptops... In some laptops, i have never observed a single byte being missed from the data file...

the OS running on laptop with byte missing is win 7, whereas the laptop running perfectly fine has win xp.

has anyone ever experienced such issue before? i am using Silicon Labs CP2102 as UART-USB converter over a baudrate of 921600 bps... the data size is normally in GB's... and the no. of bytes missing is purely random and varies from 2bytes to 32 bytes,... the way i determine if a byte is missing or not is by right clicking the file, check properties and compare size on disk and size of file ... they shud be same to ensure no data loss...

 

Now on LabVIEW 10.0 on Win7
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Now on LabVIEW 10.0 on Win7
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