| Doc. # 1-0002793 | |||
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| Date Updated | 06-01-2004 | Date Created | 07-27-2000 |
| Document Type | Knowledge Base | Related OS | |
| Related Product | PCL-818/ PCL-818H/ PCL-818HD/ PCL-818HG/ PCL-818L | ||
| Why the PCL-818 frequency read funciton is not stable when work with 32-bit DLL drivers? | |||
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Solution:
The frequency reading is obtained by reading the counter value change, then divided by a time period with system timer. Because Windows 95/NT is a multitasking system, it's very difficult to read the counter difference at presice time interval, so the reading will be stable only when time period is long.
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