WICED Smart Tag Hardware User Guide
Product Description
BROADCOM
®
WICED Smart SDK
August 30, 2013
920732TAG00-HWUM100-R
Page 9
Boot from ROM
The following procedure describes how to boot the Smart Tag board from ROM. This is available if the
NVRAM is corrupted and the device is unable to boot up correctly.
1.
SW2
and
SW3
should be placed in position 1-2.
2.
SW4
should be in HCI mode by placing all four switches in the ON position.
3. Press and hold the Boot ROM button (
SW5
) and power up the device by plugging in the USB cable
to connector J6. The Boot ROM button (
SW5
) can be released once the device is identified in the
Device Manager.
The evaluation board can now accept HCI commands or download firmware through the UART interface.
Application Firmware Software Boot-Up
The procedure below describes how to power up the Smart Tag board to run application firmware.
1.
SW2
and
SW3
should be placed in positions 1-2.
2.
SW4
should be in App mode by placing all four switches in the OFF position.
The Smart Tag is now ready to be run application firmware stored in EEPROM or serial flash, depending
on the jumper configuration.
Note
: Step 2 is optional. When firmware starts up it tries to detect presence of the UART. If
there is no connection firmware will proceed with loading patches from memory even if HCI
mode is configured.
