HP Drive manual Build the Project, Prepare the Run-Time System Environment, Mla

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}

driver.Release();

pDMMData.Release();

pDMMTrig.Release();

pDMMDCVolt.Release();

Note: The function doUnload gets called only once, when the Paws project is unloaded from the run-time system.

Build the Project

1From the Main Menu, select Options and click on CEM. The WCEM dialog appears.

2Select the Files tab and enter C:\Program Files\IVI\Include in the Include Path field. Click Apply.

Note: The path includes the Visacom_i.c file from the DMM.h header.

3From the Main Menu, select Build and click on Rebuild All. The Output area appears with a message that indicates the project was successfully built.

Note: Most of the IVI-COM driver methods return HRESULT value, which is used in this example across the entire driver implementation for error handling. Error handling code is recommended as you develop a PAWs application. In our example, the error handling code begins with if (FAILED(hr)) and ends with the } after the Display line for most of the methods.

Prepare the Run-Time System Environment

1In the Project Workspace area, double-click on the Busconfi. The DMM name in a Busconfi file corresponds to the name defined in the dmm.ddb file following the begin dev statement.

2Set the Listen Address MLA and Talk Address MTA to the device address of 23.

3The Bus number must correspond to the Channel number. The Busconfi code should appear as below:

; IEEE-488 Bus Configuration File -

"Channel" 1

DMM BUS 1 MLA 23 MTA 23

Chapter 8