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AnswerRe: Just did a fresh wipe of HP Pavilion to Windows 7, but USB & wireless don't work! Pin
Jochen Arndt21-Feb-15 0:56
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GeneralRe: Just did a fresh wipe of HP Pavilion to Windows 7, but USB & wireless don't work! Pin
swampwiz21-Feb-15 2:06
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QuestionUSB Problems? Pin
Kevin Marois19-Feb-15 10:24
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AnswerRe: USB Problems? Pin
NickPace19-Feb-15 10:55
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GeneralRe: USB Problems? Pin
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QuestionProgramming Arduino Due using ATmel Studio without Arduino IDE Pin
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QuestionSuggested strategies for ensuring Windows keeps up with USB device? Pin
Matt T Heffron5-Feb-15 15:34
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AnswerRe: Suggested strategies for ensuring Windows keeps up with USB device? Pin
Jochen Arndt5-Feb-15 22:20
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The USB servicing by Windows is running with a higher priority but not your application.

At first you should check if the driver for your USB device supports increasing the size of his internal receive buffer. This may help if the default size is smaller than your 34 KB.

A common solution would be using a worker thread running with a higher priority to receive the date and store them in a ring buffer of sufficient size. The thread must be of course event driven (new data available). When all sample data has been received by the thread it can trigger the next sampling and send a user defined message to your GUI thread indicating that new data are available.

Tasks delaying your communication are mainly hardware related actions like disk and network transfers. When you have implemented the worker thread you can check for missing acquisitions by starting such actions (e.g. copying files from a network share to a local disk or USB drive). If necessary, increase the priority of the worker thread. But note that this is a rather simple and system dependant method.

I have done this for a serial communication using a serial to USB converter where status line events must be handled before the next event occurs.

This does not answer all your questions but I hope it will be useful.
GeneralHuman monitoring device Pin
Oladosu Kehinde28-Jan-15 1:50
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SuggestionRe: Human monitoring device Pin
Richard MacCutchan28-Jan-15 1:55
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AnswerRe: Human monitoring device Pin
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QuestionPC Power Supply Voltages Pin
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AnswerRe: PC Power Supply Voltages Pin
Jochen Arndt5-Jan-15 22:25
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AnswerRe: PC Power Supply Voltages Pin
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GeneralRe: PC Power Supply Voltages Pin
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GeneralRe: PC Power Supply Voltages Pin
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GeneralRe: PC Power Supply Voltages Pin
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GeneralRe: PC Power Supply Voltages Pin
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GeneralRe: PC Power Supply Voltages Pin
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GeneralRe: PC Power Supply Voltages Pin
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GeneralRe: PC Power Supply Voltages Pin
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QuestionUSB , SCSI , LUN … file ...disk...How does it all fit together? Pin
Vaclav_8-Dec-14 5:30
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Questionlaptop power setting Pin
Gilbert Consellado29-Nov-14 19:21
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AnswerRe: laptop power setting Pin
Jochen Arndt30-Nov-14 0:44
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