FSI Customer Service Bulletin
Recently FSI has determined that certain laptop computer users experience errors during the high speed Memory Retrieval. This Service Bulletin will explain how to avoid this problem.
The error message that occurs is called "Timeout Error, no data received". Normally this problem occurs when other programs are running during Memory Retrieval. Most laptop computers run power management or battery monitoring drivers that reduce the CPU time available to receive high-speed serial data. Downloading data from an instrument at high data rates requires almost all the CPU time. Interrupt latencies caused by other drivers can cause the receive buffer in the 16550 UART to overflow. When this occurs, data is lost, causing a timeout error in the retrieval process.
To avoid this error, close or disable all applications before running the Memory Retrieval. If you still experience problems during the Memory Retrieval you may have to disable the Power Management option in the PC BIOS. To determine how to change your PC BIOS consult your PC Manual. If you cannot solve this problem please send email to software@falmouth.com.
Sincerely,
John Duchesney
Eng. Mgr., FSI