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the callback function installed for com port refused to be triggered any more

I'm developing an app with cvi7.0,it communicates with a dsp board through rs232.My problem is when the number of received data is more than about 200000 bytes, the callback function installed for com port will not be triggered any more. In the callback function,i read data from input queue ,process the data and display the data with a stripchart.When the callback function refused to be triggered,i can see that the stripchart also stopped to display datas. The speed of dsp transfering datas is much more higher than the speed of cvi app receiving datas.The baudrate is 115200bps and dsp transrers 2 bytes per 0.1ms.Data received are all correct. Thanks anyway!

帖子被wolfwei在12-28-2005 05:09 AM时编辑过了

帖子被wolfwei在12-28-2005 05:10 AM时编辑过了

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I have also made the speed of dsp transfering data more slowly,to make sure that the speed of transfering and receiveing&processing is almost the same,but i still got the same problem.
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Hi,
I know this is a very old post, but did you ever figure out what was wrong? I am now having a program with the exact same problen...

Cheers,
Mattias
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