AlazarConfigureAuxIO

Function Syntax

RETURN_CODE AlazarConfigureAuxIO(HANDLE handle, U32 mode, U32 parameter)

Configures the AUX I/O connector as an input or output signal.

The AUX I/O connector generates TTL level signals when configured as an output, and expects TLL level signals when configured as an input.

AUX I/O output signals may be limited by the bandwidth of the AUX output drivers.

Remark

The ATS9440 has two AUX I/O connectors: AUX 1 and AUX 2. AUX 1 is configured by firmware as a trigger output signal, while AUX 2 is configured by software using AlazarConfigureAuxIO(). A firmware update is required to change the operation of AUX 1.

Remark

ATS9625 and ATS9626 have two AUX I/O connectors; AUX 1 and AUX 2. AUX 1 is configured by software using AlazarConfigureAuxIO(), while AUX 2 is configured by default as a trigger output signal. A custom user-programmable FGPA can control the operation of AUX 2 as required by the FPGA designer.

Return

ApiSuccess upon success, or an error code. See RETURN_CODE for more detailed information.

Parameters

• [in] handle: Handle to board

• [in] mode: The AUX I/O mode. Can be selected from ALAZAR_AUX_IO_MODES. If an output mode is selected, the parameter may be OR’ed with AUX_OUT_TRIGGER_ENABLE to enable the board to use software trigger enable. When this flag is set, the board will wait for software to call AlazarForceTriggerEnable() to generate a trigger enable event; then wait for sufficient trigger events to capture the records in an AutoDMA buffer; then wait for the next trigger enable event and repeat.

• [in] parameter: The meaning of this value varies depending on mode. See ALAZAR_AUX_IO_MODES for more details.

LabVIEW Block Diagram

Related Enumerations

enum ALAZAR_AUX_IO_MODES

Alazar AUX I/O identifiers.

Values:

AUX_OUT_TRIGGER = 0U

Outputs a signal that is high whenever data is being acquired to on-board memory, and low otherwise. The parameter argument of AlazarConfigureAuxIO() is ignored in this mode.

AUX_IN_TRIGGER_ENABLE = 1U

Uses the edge of a pulse to the AUX I/O connector as an AutoDMA trigger enable signal. Please note that this is different from a standard trigger signal. In this mode, the parameter argument of AlazarConfigureAuxIO() can takes an element of ALAZAR_TRIGGER_SLOPES, which defines on which edge of the input signal a trigger enable event is generated.

AUX_OUT_PACER = 2U

Output the sample clock divided by the value passed to the parameter argument of AlazarConfigureAuxIO(). Please note that the divider must be greater than 2.

AUX_OUT_SERIAL_DATA = 14U

Use the AUX I/O connector as a general purpose digital output. The paramter argument of AlazarConfigureAuxIO() specifies the TTL output level. 0 means TTL low level, whereas 1 means TTL high level.

AUX_IN_AUXILIARY = 13U

Configure the AUX connector as a digital input. Call AlazarGetParameter() with GET_AUX_INPUT_LEVEL to read the digital input level.