Switch Sw3; Pc Speaker; Debug Display - Congatec conga-QEVAL/Qseven 2.0 User Manual

6.5

Switch SW3

With switch SW3, you can enable or disable the fan speed control (FAN_PWMOUT), panel backlight brightness (LVDS_BL_CTRL), speaker
(SPKR) and fan tachometer input (FAN_TACHOIN). The FAN_PWMOUT, LVDS_BL_CTRL and SPKR signals can be used as General Purpose
PWM Output and the FAN_TACHOIN signal as General Purpose Timer Input. To do this, you must disable switch SW3.
DIP Switch SW3
DIP Switch Status
ON
1
OFF
ON
2
OFF
ON
3
OFF
ON
4
OFF
6.6

PC Speaker

The board-mounted speaker provides audible error code (beep code) information during POST. The speaker is connected to the Qseven
module's SPEAKER signal. To disable the onboard speaker, set DIP 3 of switch SW3 to OFF.
6.7

Debug Display

During POST (Power On Self Test), the BIOS generates diagnostic progress codes (POST-codes) to different I/O ports (usually port 80h). If
the POST fails, execution stops and the last POST code generated is left at the respective port. This code is useful for determining the point
where an error occurred.
Copyright © 2014 congatec AG
Description
Enable LVDS_BL_CTRL
Disable LVDS_BL_CTRL
Enable FAN_PWMOUT
Disable FAN_PWMOUT
Enable SPKR
Disable SPKR
Enable FAN_TACHOIN
Disable FAN_TACHOIN
Speaker
(M1)
SW3
1
2
3
4
SW3
1
2
3
4
QEV2m11
O
Default Settings:
N
ALL ON
®
O
Default Settings:
N
ALL ON
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