Point Grey Flea3 FL3-U3 - Page 5

Point Grey Flea3 USB 3.0 Technical Reference
3.6.4 FIRMWARE_BUILD_DATE: 1F64h 40
3.6.5 FIRMWARE_DESCRIPTION: 1F68-1F7Ch 40
4 Input/Output Control 41
4.1 General Purpose Input/Output (GPIO) 41
4.2 GPIO Modes 41
4.2.1 GPIO Mode 0: Input 41
4.2.2 GPIO Mode 1: Output 41
4.2.3 GPIO Mode 2: Asynchronous (External) Trigger 42
4.2.4 GPIO Mode 3: Strobe 42
4.2.5 GPIOMode 4: Pulse Width Modulation (PWM) 42
4.3 Programmable Strobe Output 42
4.3.1 Synchronizing Image Capture with an Output Trigger or Strobe 43
4.3.2 Example: Setting a GPIOPin to Strobe (Using the Camera Registers) 44
4.3.3 Example: Setting a GPIOPin to Strobe (Using the FlyCapture API) 46
4.3.4 Strobe Signal Output Registers 47
4.3.4.1 Strobe Output Registers 47
4.3.4.2 GPIO_STRPAT_CTRL: 110Ch 48
4.3.4.3 GPIO_STRPAT_MASK_PIN: 1118h-1148h 49
4.3.4.4 GPIO_XTRA: 1104h 49
4.4 Pulse Width Modulation (PWM) 50
4.4.1 GPIO_CTRL_PIN: 1110h-1140h 50
4.4.2 GPIO_XTRA_PIN: 1114h-1144h 51
4.5 Serial Communication 51
4.5.1 Serial Output Transaction (Transmitting Data) 52
4.5.1.1 Example: Transmitting Characters to a PC 52
4.5.2 Serial Input Transaction (Receiving Data) 53
4.5.2.1 Example: Receiving Characters from a PC 54
4.5.3 Transmitting and Receiving Data Simultaneously 55
4.5.4 Serial Input/Output Registers 55
4.6 GPIO Electrical Characteristics 59
4.6.1 GPIO0 (Opto-Isolated Input) Circuit 59
4.6.2 GPIO1 (Opto-Isolated Output) Circuit 60
4.6.3 GPIO 2/3 (Bi-Directional) Circuit 61
5 Video Formats, Modes and Frame Rates 63
5.1 Video Modes Overview 63
5.1.1 Video Mode Descriptions 64
5.1.2 Calculating Format 7 Frame Rates 66
5.2 Pixel Formats 66
Revised 9/27/2012
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