UM-B-114
DA14531 Development Kit Pro Hardware User Manual
User Manual
Revision 1.4
23-Apr-2020
17 of 82
© 2021 Dialog Semiconductor
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USB Hub (U11)
: connects JTAG and UART interfaces to the PC.
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USB to UART (U12)
: provides communication between DA14531 UART port and PC. It also
transfers the current measurement samples to PC.
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USB to JTAG (U4)
: provides communication between DA14531 JTAG and PC.
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USB Connector (USB1)
: mini-USB connector for power supply and data interfacing to the PC.
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Configuration Header (J1)
: wiring of the available peripherals to the DA14531 pins is done with
the help of jumpers on J1 (for default configurations) or with jumper wires from J1 to J2 when
custom pin assignments of the peripherals to DA14531 pins are desired.
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DCDC Configuration (J4)
: selects either Boost, Buck, or Bypass mode for DA14531.
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PRO-DB Mating Header (J3)
: a connector that accepts the DA145xx PRO-DB board.
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Push Button Selection Header (J19)
: configures the assignment of onboard push buttons to
certain DA14531 pins.
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Reset Push Button (SW1)
: push button used to reset DA14531.
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User LED and C-Trig (J8)
: enables use of the onboard LED (D5) and the software cursor, see
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GPIO Monitoring Header (J2)
: exposes all the pins of the PRO-DB to allow wiring for custom
configurations as well as monitoring of the hardware signals.
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ARDUINO
: socket for plugging in an Arduino board. It consists of J11, J12, J13, and J14. It is
multiplexed with mikroBUS (to be used with DA14531-FCGQFN24).
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MikroBUS1 (J15 and J16)
: the first socket for plugging a mikroBUS click.
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MikroBUS2 (J17 and J18)
: the second socket for plugging a mikroBUS click.
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Push Buttons (SW2 and SW3)
: general use push buttons.
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VLDO Selection (J5)
: selects the output voltage generated for the PRO-DB board (1.1 V, 1.8 V,
3.0 V, or 3.3 V)
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Current Sense Circuit
: monitors the current of PRO-DB. It is described in section
●
Current Sense (J9)
: enables the current sense circuit (jumpers mounted by default). Also, it
allows the simultaneous connection of an external current measurement instrument in order to
measure and profile the current consumption of D14531.
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RxTx Single Wire UART (J10)
: Generates RxTx single wire UART by shorting UTX and URX
through a 1 K
Ω resistor. Jumpers must be applied to from J10.1 to J1.15 and to from J10.2 to
J15.17.
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J6
: manual enable of USB hub voltage regulator. Not in use by default.
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J20
: monitoring current sense circuit. Not mounted. No functional use.
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J22
: it can provide 6.0 V to PRO-DB. Not mounted. No functional use.
