UM-B-077
DA14681 Wearable Development Kit Hardware Manual
User Manual
Revision 1.2
06-Apr-2017
CFR0012
11 of 47
© 2017 Dialog Semiconductor
The following functions are performed by the interface board:
●
Connectivity of PC to the DA14681 JTAG port.
●
Connectivity of PC to the DA14681 UART port (full UART is possible but it must be enabled on
the PC driver).
●
Hardware RESET capability through the T_RESET signal. Note that the signal T_RESET is
active low and therefore is inverted by U7 before reaching the RST pin on the DA14681.
The following on-board settings have to be enforced in order to be able to program /debug the
wearable reference design board:
Interface board settings (see
Figure 5)
:
●
ON-OFF switch set to ON
●
USB cable connected at the mini USB connector
●
IDC-10 cable from the 1.27 mm pitch header to the target board
Wearable reference design board settings (see
Figure 2
and
Figure 3)
:
●
IDC-10 cable from interface board is connected at the
bottom
of the wearable reference design
board (target board).
●
ON-OFF switch has to be positioned towards the USB connector in order to be powered by the
communication interface board.
The connection between the interface board and the wearable reference design board (or enclosure)
is shown in
Figure 6
and
Figure 7.
Figure 6: IDC-10 Cable between Interface Board and Wearable Reference Design Board
