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C: Hardware Tips
C.1 Dipswitch Settings
The multi-function dipswitch block (SW401) is used to control module signals.
Note:
The 'Default' switch positions are the settings recommended when using this guide.
Signal
Dip
1
PWR_ON
2
WIFI_UART1_TX
3
VCC_3V7_ULPM
4
HL_MODE
5
BATT_TS+
6
CONS_DIR
7
TP1_BOOT
8
LowPower_RESET
Rev 1 2020-03-01
On/Off
State
On (Default) Enable CF3 module's POWER_ON signal
Off
Disable POWER_ON signal
Enable CF3 module's firmware download (recovery) mode.
On
Note:
Similar functionality to TP1_BOOT
Off (Default) Normal operation
On (Default) While in ULPM, sensors receive power
Off
While in ULPM, sensors are not powered
On
When combined with LowPower_RESET, indicates that board is in HL mode.
Off (Default) When combined with LowPower_RESET, indicates that board is in WP mode.
On (Default) Enable backup battery charging.
Off
Disable backup battery charging.
Console USB connector accesses the Wi-Fi/Bluetooth module's console.
On
Note:
To download firmware to the Wi-Fi module, set CONS_DIR OFF and
WIFI_UART1_TX ON.
Off (Default) Console USB connector access the CF3 module's console.
Enable CF3 module's TP1 (boot) signal functionality. Pull the signal low to enter
On
download mode for firmware updates.
Off (Default) CF3 module functions normally.
On (Default) When combined with HL_MODE, indicates that board is in WP mode.
Off
When combined with HL_MODE, indicates that board is in HL mode.
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