BADGER-SIM3L1-EK Silicon Labs, BADGER-SIM3L1-EK Datasheet - Page 3

• Manufacturer Part Number: BADGER-SIM3L1-EK
• Description: Development Boards & Kits - ARM Low-Power SiM3L1xx 32-bit MCU Eval Kit
• Manufacturer: Silicon Labs

Specifications of BADGER-SIM3L1-EK

• Rohs: yes
• Product: Evaluation Boards
• Tool Is For Evaluation Of: SiM3L1xx
• Core: ARM Cortex M3
• Data Bus Width: 32 bit
• Description/function: ToolStick for the Precision32 low-power family
• For Use With: SiM3L1xx

AN757
5. Charging the Badger Board
The badger board is charging any time it is plugged into USB and the blue LED (DS9) is turned on. The badger
board will charge to 75% capacity (3.3 V) in approximately 90 seconds and to 100% capacity (3.8 V) in 3 to 5
minutes. There is no risk of overcharging the supercapacitor if the board is connected to USB indefinitely.
6. Demonstration Mode
The demonstration mode cycles though the key power specs for the SiM3L1xx MCU. Press the push button switch
(S1) to advance to the next specification. After all the specifications have been displayed, the elapsed time (since
the charger was last disconnected) and the current voltage on the super capacitor are displayed on the LCD.
After approximately one minute of inactivity, the badger board will return to the home screen displaying the letters
“SILABS”.
7. Badge Mode
Holding the push button switch (S1) for approximately three seconds and releasing it when four arrows appear in
the top left corner of the LCD will toggle the badger board between demonstration mode and badge mode. In
badge mode, a user-defined string of up to 40 characters is displayed on the LCD. Strings longer than eight
characters will automatically scroll across the LCD display.
There are two ways to specify the user-defined string. The first method is to use Toolstick Terminal, and the second
method is through the light sensor. The Toolstick Terminal creates a serial communication link between the PC and
the MCU using the existing USB connection to carry data. The Terminal should be configured for 9600 baud 8-N-1
communication. Upon detecting a terminal connection, the badger board will automatically enter badge mode and
display any string entered into the terminal. Figure 4 shows a screen capture of the Toolstick Terminal.
Figure 4. Toolstick Terminal
Rev. 0.2
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