BADGER-SIM3L1-EK Silicon Labs, BADGER-SIM3L1-EK Datasheet - Page 7

• 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

10.1. Push-Button Switches and LEDs (S1, DS5, DS9, DS10)
The badger board has a push-button switch and two LEDs summarized in Table 1. The switches connect to PB0.3
(S1). The switch is normally open and pulls the pin voltage to ground when pressed.
Port pin PB2.6 connects to the red LED (DS8), and PB2.7 connects to the green LED (DS10). The blue power LED
(DS9) turns on when USB power is applied to the board. The red and green LEDs connect to VBAT through a
current-limiting resistor and are enabled by driving the pin voltage to ground.
10.2. Super Capacitor (C26) and Current Measurement Header(JP1)
The supercapacitor (C26) is the energy storage medium used in the badger board. Removing the shorting block
from JP1 will disconnect the supercapacitor from the MCU and allow the MCU’s supply current to be measured.
When plugged into USB, the supercapacitor is charged to a nominal voltage of 3.8 V.
10.3. ToolStick Debug Adapter (U3)
The badger board features a debug adapter via the card edge USB connector. This debug adapter can be used
with the Precision32 (1.0.2 and higher) and ARM uVision IDEs (4.54 and higher). When using an older version of
the IDEs, the debug adapter DLLs in the IDE directories must be replaced to support the ToolStick Debug Adapter.
Contact technical support (see “Contact Information” on page 14) for more information.
The ToolStick Debug Adapter also provides a ToolStick Terminal interface, which creates a virtual USB-based
terminal to access the UART pins on the MCU. Connecting the board to an older version of the ARM uVision IDE or
using an older version of the Flash Programming Utility may result in the Debug Adapter firmware being
downgraded and loss of the ToolStick Terminal interface. If this occurs, simply perform a firmware update as
described in 4. "Firmware Update" on page 2, and this process will restore the ToolStick Terminal interface.
GPIO Pin
Table 1. Badger Board Switch and LEDs
PB0.3
PB2.6
PB2.7
—
Rev. 0.2
Blue POWER LED (DS9)
Push-Button Switch (S1)
Green LED (DS10)
Switch or LED
Red LED (DS5)
AN757
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