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Hardware User Manual - eDEV-BF5xx
5 Switches, Jumpers and LEDs
Last change: 21 June 2013
Version 2.1
5.1
Power LED
The Power LED right next to the DC-plug indicates whether the Core Module is powered or not. The LED
goes on, if the 3.3V power supply is generates.
5.2
GPIO LEDs
Each of the two LEDs (red and green) is connected via a DIP switch (see below) to a GPIO of the Core
Module.
LED
V9
V10
5.3
GPIO Button
Color
Red
Green
Blackfin GPIO
PF6
PF7
Table 5-1: LED connection description
One push-button is connected to the GPIO PF10 . Also this button (and the pull-up resistor) can be
disconnected from the module. A hardware de-bouncing is realized by a single RC-element with a time-
constant of τ =1ms.
5.4
Reset Button
The Reset button is connected to the Core Modules Reset and to the camera Reset on X11. He is also
available on the extension connector X2. The hardware de-bounced signal ( τ =5.4ms) is gated with an open
collector Schmitt-trigger.
5.5
Board Configuration Switches (S2, S3)
The board configuration DIP-switches offers the user to disable or disconnect specific devices or elements
on the board.
No
BF Name
Componen
Signal
Description
t
1
PF1
Ethernet
nRESET
OFF : Disconnect the Ethernet reset signal nRESET from
PF1; controller remains in reset state
2
PF11
Ethernet
IRQ
ON : Connect the Ethernet reset signal nRESET to PF1
OFF : Disconnect the Ethernet interrupt signal IRQ from
PF11
3
nAMS1
Ethernet
nCS
ON : Connect the Ethernet interrupt signal IRQ to PF11
OFF : Disconnect the Ethernet signal nCS from nAMS1,
controller remains unselected
4
nAMS2
USB
nCS
ON : Connect the Ethernet signal nCS to nAMS1
OFF : Disconnect the USB signal nCS from nAMS2;
controller remains unselected
5
PF12
USB
nIRQ
ON : Connect the USB signal nCS to nAMS2
OFF : Disconnect the USB interrupt signal nIRQ from PF12
ON : Connect the USB interrupt signal nIRQ to PF12
Template No.: 900-306 / A
Page | 21
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