DEV-BF548 datasheet(22/36 Pages) ETC1

22 / 36 page

Blackfin DEV-BF548-Lite. DEV-BF548DA-lite Hardware User Manual

Switches, Jumper and LED Description

5.1

S1 – Reset switch

Performs system reset.

5.2

S2 – Ethernet Control Signals / SDCARD CS

Default Settings

Dipswitch

Function

S2.1

Connect SDCARD CS to PC5

S2.2

Connect nAMS1 from Core Module to Ethernet chip

S2.3

Connect PE6 from Core Module to Ethernet chip IRQ

S2.4

Connect PME of Ethernet chip to test point PME1

5-1 DIP switch S2

5.3

S3 – UART Switch

Move S3 to position 1 to route the Core Modules RX0 and TX0 signals to USB

Move S3 to position 0 to route the Core Modules RX1 and TX1 signals to USB

5.4

S4 – Boot Configuration

S4.1 to S4.4 Control the boot mode and are described in chapter 6 Boot Mode Description.

Dipswitch

Function

S4.1

Bootmode 0

S4.2

Bootmode 1

S4.3

Bootmode 2

S4.4

Bootmode 3

S4.5

Power Supply for CAN0 Driver IC

S4.6

Power Supply for CAN1 Driver IC

S4.7

Connect TXD‐USB to VCC

S4.8

Connect S5 to VCC

5-2 DIP switch S4

5.5

JP1 – Ethernet Speed Selection

Set jumper JP1 to select Ethernet Speed 10MBit/s and unset JP1 for 100Mbit/s.

5.6

JP2 -– Power Supply Jumper

This jumper can be removed in order to insert an AMPERE METER for current measurement:

5.7

JP3 – RTC Power Jumper

This jumper is used to connect the VddRTC pin of the Core Module to 3.3V. You can also use this jumper

to connect a battery to the internal RTC of the Blackfin.

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