Getting Started with EZ-BT WICED Modules
Document Number: 002-23400 Rev. **
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image in SFLASH). If 4-wire UART with flow control is required, it is recommended to use HCI UART as the UART
connection for your application.
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PUART (Positions 1 ~ 4 of SW5 =
ON
) is the configuration to use when desiring to have the PUART connected to
the host PC. This PUART interface to the host PC can be used for terminal communication (print statements).
Note:
PUART communication signals routed to Arduino headers are not gated by SW5 and can be used to
communicate with any peripheral device over UART.
Note:
The PUART interface cannot be used to download a new binary image to the CYBT-353027-02 module.
C . 2 . 4 Ad d i t i o n a l S w i t c h e s a n d L E D s
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SW1 (RESET switch): SW1 is a tactile switch that is connected directly to the XRES connection of the CYBT-
353027-02 module. Activating this switch will reset the EZ-BT WICED Module. This switch is also used in the
process of (re-)programming the CYBT-353027-02 module on the evaluation board.
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SW2 (RECOVER switch): SW2 is provided to recover a module that has the standard programming bootloader
and/or application image corrupted or erased. Recovery mode is activated by holding this button down while
pressing and releasing SW1 (RESET). Recovery mode is used prior to programming the module with a new binary
image.
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SW3 (USER switch): SW3 is provided as an element that the user can configure as required. The SW3 element
is connected to GPIO_6 on the CYBT-353027-02 module (solder pad 18). Header J9 is provided on the CYBT-
353027-EVAL board to disconnect GPIO_6 from the USER switch to allow this connection to be used on the
Arduino Headers without SW3 connected.
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D1 USER LED is provided for user-configured behavior as required. The D1 LED is connected to the module P11
connection (solder pad 5). Header J10 is provided on the CYBT-353027-EVAL board to disconnect P11 from the
USER LED to allow this connection to be used on the Arduino Headers without D1 connected. Note that the CYBT-
353027-02 module does not support PWM hardware blocks, so functionality of the D1 LED is limited to driving the
LED using a GPIO signal (either on, off, or a firmware-based timer PWM representation).
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D2 and D3 LEDs are provided to display programming or USB activity while in progress.
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D7 LED is provided to show that power is provided from the host PC.
C . 2 . 5 P r o g r a m m i n g o r R e p r o g r a m m i n g t h e C Y B T - 3 5 3 0 2 7 - E V AL B o a r d
Refer to Section
for general information on how to program or reprogram EZ-BT WICED Modules. You may also
refer to
To program an EZ-BT WICED module in your own manufacturing line, you must ensure that both the Recover and
Reset connections on the EZ-BT module are exposed in order to put the module into programming/recovery mode.
