INT32S DRV_CounterConfig ( PTR_T DeviceHandle， PT_CounterConfig *lpCounterConfig );
This function can be used in PCI-1780/MIC3780/PCM3780/MIC3756 only.
On the device indicated by the DeviceHandle, it configures a specified channel and its necessary parameters for output mode. This function must be called before calling the DRV_CounterEventStart.
Some parameters, such as target counter channel (usCounter), initial counter value (usInitValue), count direction (usCountDirect), output mode (usOutputMode), gate source(usGateSrc) and gate polarity (usGatePolarity), are stored in the PT_CounterConfig, structure pointed by the lpCounterConfig.
| Name | Direction | Range | Description |
| DeviceHandle | input | default | The pointer retrieved from DRV_DeviceOpen which specifies the target device. |
| lpCounterConfig | input | default | The pointer to indicate the user-prepared structure PT_CounterConfig that stores target counter channel (INT16U usCounter), initial counter value (INT16U usInitValue), counter mode (INT16U usCountMode), etc. |
| 1. 0 | Successful. |
| 2. InvalidDeviceHandle | The Devicehandle is NULL. |
| 3. InvalidChannel | The target channel (usCounter of lpCounterConfig ) is out of range. |
| 5. InvalidInputParam | The initial value (usInitValue of lpCounterConfig) is wrong, i.e. usInitValue is not within the range that the counter supports. |