I have two serial write/reads running through some USB ports on my computer. Sometimes after about 2min of running the computer/program will appear to pause, the LEDs on the usb-serial connectors stop flashing (they flash rapidly when in use) and the program hangs for a second or five, then resumes as if nothing happened. This happens at random intervals it seems, and my data is lost for that time period on the graphs and in the data file. there is no error thrown or anything like that. Why could this be happening and how can i prevent it?
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