VIA Technologies EPIA SN-Series Specifications download pdf (Page 99)

FASTER Engineering Model

Figure 71: Camera shot signal generation

Before reaching the parallel port output the correct waveform to control the shutter

button release is generated. The shutter button is typically hold down for 0.5 s for frame

rate ≥ 1. Greater frame rates could be reached simply keeping always down the shutter

buttons; the camera enters the continuous driving mode and frame rates up to 3.5 fps can

be achieved. At the highest frame rate images must be saved into the onboard Secure

Digital memory card because the measurements reveals that the USB connection has a

maximum transfer rate of about 52 Mbit/s (corresponding to about 0.5 fps); the EOS

450D connections panel is shown in Figure 72. A 40 ms delay must be considered

between signal generation and effective shutter movement.

Figure 72: Canon EOS 450 remote connections panel

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VIA Technologies EPIA SN-Series Specifications Page 99