Instruction manual

Guppy PRO Technical ManualV4.1.0

Camera interfaces

Input/output pin control

All input and output signals running over the camera I/O connector are con-

trolled by an advanced feature register.

IO_INP_CTRL 1

The Polarity flag determines whether the input is low active (0) or high active

(1). The input mode can be seen in the following table. The PinState flag is used

to query the current status of the input.

The PinState bit reads the inverting optocoupler status after an internal nega-

tion. See Input block diagram on page 66.

This means that an open input sets the PinState bit to 0. (This is different to Mar-

lin, where an open input sets PinState bit to 1.)

0xF1000300 IO_INP_CTRL1 Presence_Inq [0] Indicates presence of this feature (read only)

--- [1..6] Reserved

Polarity [7] 0: Signal not inverted

1: Signal inverted

--- [8..10] Reserved

InputMode [11..15] Mode

see table 25

--- [16..30] Reserved

PinState [31] RD: Current state of pin

Table 24: Advanced register: Input control

ID Mode Default

0x00 Off

0x01 Reserved

0x02 Trigger input

Input 1

0x03..0x1F Reserved

Table 25: Input routing

Note



If you set more than 1 input to function as a trigger input, all

trigger inputs are ANDed.