38
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Technical Reference
PC2-Comp Express
D12, D13: Acquisition and Trigger Status LEDs
Two LEDs, located on the top edge of the PC2-Comp Express board, provide visual feedback for the
acquisition and trigger status. It is necessary to open the host system case to see the LED states (this is
typical when doing system setup and verification).
D12: LED State
Acquisition State
OFF
PC2-Comp Express firmware is not loaded
Static Red
Cannot synchronize to input, (that is, no video or an unstable
HS)
Static Green
Board ready
Blinking Green Slow (2 Hz)
HS and VS are present and stable
Blinking Green Fast (15 Hz)
Acquisition is in progress
D13: LED State
Trigger State
OFF
No trigger detected
Blinking Green
Triggers operating at a slow rate detected
(one blink per trigger)
Static Green
Triggers at a fast rate detected
Blinking or Static Red
Error detected by PC2-Comp Express driver
D15: Firmware State
This LED provides visual feedback as to which firmware is selected to execute on the PC2-Comp
Express. Normally firmware is loaded or updated by the driver installation procedure. If there is an
error condition with a driver installation, a safe mode firmware can be forced to execute so as to
re-attempt the driver installation. See
"
J19: Boot Recovery Mode
" on page 39
.
Indicator LED D15
Indicator State
OFF
(default) using driver uploaded firmware
ON
Using safe mode firmware
Summary of Contents for PC2-Comp Express OC-P2EM-COMP0
Page 6: ...iv Contents PC2 Comp Express ...
Page 38: ...32 Theory of Operation PC2 Comp Express ...
Page 46: ...40 Technical Reference PC2 Comp Express ...
Page 64: ...58 Sapera LT PC2 Comp Express ...
Page 65: ...PC2 Comp Express Sapera LT 59 EMI Certifications Class A both FCC and EC ...
Page 66: ...60 Sapera LT PC2 Comp Express ...