Atmel STK520, User Manual

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Using the STK520 Top Module
2-11 STK520 User Guide
7510A–AVR–08/05
2.4 STK520
Jumpers, Leds &
Test Points
Table 2-2. STK520 Jumpers
Jumper Function Description
JP1 XT1 Connect STK500 XT1 circuit to AVR PE1
JP2 XT2 Connect STK500 XT2 circuit to AVR PE2
JP3 RESET Connect STK500 RESET circuit to AVR PE0
JP4 RX Connect RxD DALI to RxD Input of the AVR
JP5 TX Connect TxD DALI to TxD Output of the AVR
JP6 VTG Useful to measure the VCC and AVCC current
JP7 ANA REF Connect STK500 REF circuit to AVR AREF
JP8 D2A Isolate D2A outpu
JP9 AMP0+ Isolate AMP0+ input
JP10 AMP0- Isolate AMP0- input
JP11 AMP1+ Isolate AMP1+ input
JP12 AMP1- Isolate AMP1- input
JP13 Potentiometer supply from Analog V Ref
JP14 Potentiometer output to ADC0 input
Table 2-3. STK520 Leds
Led Function Description
D3 RX RX data detected by DALI Interface
D4 TX TX data sent to DALI Interface
Table 2-4. STK520 Test Points
Test Point Function Description
T1 GND Electrical ground of the STK520 board
T2 GND Electrical ground of the STK520 board
T3 AREF AREF pin of the AVR
T4 D2A D2A output of the AVR
T5 DALI Rectified DALI line
T6 Tx TX data sent to DALI Interface
T7 Rx RX data detected by DALI Interface