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AT91SAM7L-STK Rev. B Starter Kit User Guide 5-5
6414A–ATARM–12-Sep-08
5.2 Jumpers
Jumpers are used on the AT91SAM7L-STK for internal Flash Memory reinitialization and power current
measurement.
Notes: 1. This jumper is used to erase the internal Flash and the associated NVM bits of the AT91SAM7L device.
2. This jumper is provided for enabling the AT91SAM7L128 chip power consumption measurement. By
default, it is closed. To use this feature, the user has to open the strap and insert an ammeter.
3. This jumper is provided for the measurement of the whole AT91SAM7L-STK board power consumption.
By default, it is closed. To use this feature, the user has to open the strap and insert an ammeter.
5.3 Test Points
Some test points have been set on the AT91SAM7L-STK PCB in order to enable the monitoring of some
relevant signals.
Table 5-4. Jumpers on AT91SAM7L-STK
Designation Default Setting Feature
J6 pins 39-40 Opened Erase Internal Flash
(1)
J8 Closed SAM7L VCC Jumper
(2)
J9 Closed Board VCC Jumper
(3)
Table 5-5. Test Points on AT91SAM7L-STK
Designation Description
TP1 RX (RS232 levels)
TP2 TX (RS232 levels)
TP3 CLKIN
TP4 FWUP
TP5 ADREF
TP6 XOUT
TP7 NRSTB
TP8 VDDIO2
TP9 VDD3V6
TP10 VDDOUT