Multiple VME Bus Data Transfers

During real time data transfers, readings are taken directly from the A/D converter and sent to the VME bus. These readings are also stored in digitizer memory. Transferring (real time or post measurement) readings from memory does not remove the readings from memory. As a result, a set of readings can be transferred to the VME bus multiple times. The digitizer is configured for an additional data transfer with the command:

VINStrument[:CONFigure]:VME:MEMory:INITiate

Reading the data register after executing this command transfers the data to the VME bus. If a subset of the total number of readings is transferred, execute the ABORt command following the transfer to allow for additional transfers. The digitizer should be configured with VINStrument[:CONFigure]:VME:MEMory:INITiate for each subsequent data transfer.

Chapter 3

Understanding the HP E1429 Digitizer 155

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HP E1429A manual Multiple VME Bus Data Transfers