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Summary of Contents for Dialog Semiconductor DA14695 USB Kit
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Page 1: Abstract
User Manual DA14695 USB Kit UM-B-103 Abstract This document outlines the system design, configuration options, and supported features of DA14695 USB Kit, rev-C (331-22-C). -
Page 2: Table Of Contents
UM-B-103 DA14695 USB Kit Contents Abstract ..............................1 Contents ............................... 2 Figures ..............................3 Tables ..............................3 Terms and Definitions ........................4 References ............................. 4 Introduction ............................ 5 System Overview ........................... 5 Features ..........................5 System and Components Description (Top View) ..............6 System and Components Description (Bottom View) ............ -
Page 3: Figures
DA14695 USB Kit Figures Figure 1: DA14695 USB Kit ........................5 Figure 2: DA14695 USB Kit - Top Side ....................6 Figure 3: DA14695 USB Kit - Bottom Side .................... 7 Figure 4: Test Points Topology (BOTTOM View) .................. 9 Figure 5: Block Diagram of DA14695 USB Kit .................. -
Page 4: Terms And Definitions
UM-B-103 DA14695 USB Kit Terms and Definitions Communication Interface Board Direct Current Resistor DMIPS Dhrystone Million Instructions per Second GPIO General Purpose Input Output Inter-Integrated Circuit JTAG Join Test Action Group Low Dropout MISO Master In Slave Out MOSI Master Out Slave In... -
Page 5: Introduction
DA14695 USB Kit Introduction This document describes the DA14695 USB Kit. This kit offers a low-cost development board with basic functionality. The development kit is implemented on a single PCB. The block diagram, the actual board, the various sections and settings as well as the connectivity are presented. The purpose of this cost-effective USB kit is to provide users with the capability of: ●... -
Page 6: System And Components Description (Top View)
UM-B-103 DA14695 USB Kit System and Components Description (Top View) Figure 2: DA14695 USB Kit - Top Side The USB kit is based on the DA14695 SoC in an VFBGA86 package. The marked and numbered sections of the system are:... -
Page 7: System And Components Description (Bottom View)
System and Components Description (Bottom View) Figure 3: DA14695 USB Kit - Bottom Side The bottom side of DA14695 USB kit provides information about the MikroBUS™ pins assignment, the SEGGER ID, and the date code. Test points have been placed for monitoring various signal behaviors and voltage levels of the components. -
Page 8: Test Points
UM-B-103 DA14695 USB Kit Test Points Test points have been placed on the bottom side of the board and allow users to have access to signals and I/Os, or measure supplies voltage levels. Table 1 shows the assignment for each test... -
Page 9: Figure 4: Test Points Topology (Bottom View)
UM-B-103 DA14695 USB Kit Test Point Assigned to Comments TP33 SWO/TDO For programming U4 in production - Not used for development TP34 DBLED Voltage level for Green LED TP35 SWO/TDO For programming U4 in production - Not used for development... -
Page 10: Block Diagram
Antenna LED (D7) & 32MHz 32KHz Push button (K1) Figure 5: Block Diagram of DA14695 USB Kit The power of Dialog’s DA14695 SoC on the USB kit can be supplied from three different sources (Figure ● Default configuration: 5 V provided to VBUS pin, when jumper placed to J2 header (pin 2-3) ●... -
Page 11: Usb Kit System
UM-B-103 DA14695 USB Kit USB Kit System Overview ● Board name/number: ○ DA14695 USB Kit/331-22-C ● SoC: ○ DA14695 in a VFBGA86 package ● Flash memory: ○ MX25U3235F (32 Mbit) QSPI Flash Memory, 8-pin SOIC (200 mil) package ○ 1.8 V (V18P to pin V18F) power supply (default) ●... -
Page 12: Figure 6: Da14695 Schematic
UM-B-103 DA14695 USB Kit Figure 6: DA14695 Schematic The DA14695 SoC power management subsystem consists of: ● VBUS: battery charger input as well as USB bus voltage ○ A decoupling capacitor (C2, 0402 package, 6.3 V) equal or less than 4.7 μF is placed close to VBUS pin ●... - Page 13 UM-B-103 DA14695 USB Kit ○ V30 is the default option for GPIO voltage levels (expect for the QSPI-RAM I/Os which are fixed to 1.8 V) ○ The current delivery capability of the V30 power rail is 150 mA ○ Overcurrent protection circuit limits the current on V30 if an external device misbehaves ●...
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Page 14: Da14695 Pin Assignment
UM-B-103 DA14695 USB Kit DA14695 Pin Assignment Most of the available signals are utilized or extracted on the breakout connectors. Table 2 provides the pin assignment of the breakout connectors on the USB kit and the related pin name on the VFBGA86 package of the DA14695. - Page 15 UM-B-103 DA14695 USB Kit AQFN60 Pin Development Kit Signal Header Comments Name GPIO/MikroBUS™ Universal Asynchronous P0_29 GPIO/MB1_TX J16.4 Transmitter (slot 1) GPIO/MikroBUS™ I2C SCL (slot 1) P0_30 GPIO/MB1_SCL J16.5 GPIO/MikroBUS™ I2C SDA (slot 1) P0_31 GPIO/MB1_SDA J16.6 P1_00 J4.3 UART interface GPIO/MikroBUS™...
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Page 16: Booting From Uart
UM-B-103 DA14695 USB Kit Booting from UART There is only one boot loader option for booting from UART using pins P0_9 (T_TX) and P0_8 (T_RX). Please note that UART-booting does not support hardware handshake signals (RTS/CTS). The settings for UART booting are: ●... -
Page 17: Antenna And Rf Port
A printed type antenna is currently used as the default antenna in the DA14695 USB Kit. The DA14695 USB Kit provides a single-ended RFIO port matched to 50 Ω. The RF port consists of the RFIOp, RFIOm, and RFIOm2 pins, of which RFIOm and RFIOm2 are connected to ground. A copper trace with an impedance of 50 Ω... -
Page 18: Qspi Data Flash Memory (U5)
SPI as well as 2-clock instruction cycle Quad Peripheral Interface (QPI), Serial Clock, Chip Select, Serial Data I/O0 (DI), I/O1(D0), I/O2 (/WP), and I/O3(/HOLD). The selected QSPI flash for the DA14695 USB Kit is MX25U3235FM2I-10G in 8-pin SOIC 208mil package (U5). DA14695 USB Kit can support QSPI Data flash with 8-pin SOIC 150mil package... -
Page 19: Reset Circuit
DA14695 USB Kit Reset Circuit Figure 11: Reset Circuit The DA14695 comprises an RSTn pad which is active low. The DA14695 USB Kit can be reset by pressing the on-board RESET push button (K2, Figure 12) or through software from the UART &... -
Page 20: 5.10 Debugging Port Dip Switch
UM-B-103 DA14695 USB Kit Figure 14: General Purpose Push Button K1 (Populated at TOP) 5.10 Debugging Port DIP Switch Figure 15: Debugging DIP Switch S1 is a DIP switch which allows users to disconnect the pins used for debugging (default state is all pins connected) to allow accurate deep sleep power measurement. -
Page 21: 5.11 User Controlled Led
Figure 19: Mikrobus™ Pin Assignment MikroBUS™ The DA14695 USB Kit can support modules. Users must place and solder J15, J16 sockets (for slot #1) and/or J17, J18 sockets (for slot #2) on the top side of the board as shown in Figure 20. -
Page 22: Figure 20: J15, J16, J17, And J18 Female Sockets (Must Be Soldered By Users)
MikroBus™ standard guideline for add-on board insertion. For more information, please check specifications. The pin assignment is printed at the bottom side of the DA14695 USB Kit (Figure 22). -
Page 23: 5.13 Gnd Test Point
Figure 24: GND Support Point (Must Be Placed by Users) 5.14 Over Voltage Protection Circuit (OVP) The DA14695 USB Kit can be used as a portable standalone device. The power supply can be a power-bank or a mobile charger. The overvoltage protection circuit OVP circuit can protect the device from overvoltage of up to 20 V. -
Page 24: 5.15 Over-Current Protection Circuit On V30 Power Rail
UM-B-103 DA14695 USB Kit 5.15 Over-Current Protection Circuit on V30 Power Rail A P-FET is added in series with V30 power rail to prevent the voltage on the pin from dropping to very low levels if a peripheral surge sets an overcurrent condition. -
Page 25: Debugging Processor (U4)
UM-B-103 DA14695 USB Kit 5.17 Debugging Processor (U4) Two debugging options (JTAG/UART) are available on the DA14695 SoC. The USB-to-JTAG and USB-to-UART functions are implemented by the SAM3U2CA processor (U4) (Figure 28), running the Segger JLink-OB firmware. The functions served by U4 are: ●... -
Page 26: 5.18 Power Section
UM-B-103 DA14695 USB Kit 5.18 Power Section The DA14695 USB Kit is supplied from 5 V to VBUS pin via J2 header (jumper has been placed to connect pins 2-3). Figure 29 shows the power tree. 3V3D Segger 3.3V LDO_EN... -
Page 27: 5.19 Power Selection Headers
UM-B-103 DA14695 USB Kit 5.19 Power Selection Headers The DA14695 USB Kit allows users to power supply the DA14695 from three different sources: ● 5 V to VBUS pin (default) ● 3.3 V to VBAT pin (optional) ● 3.6 V to 4.2 V from external battery to VBAT pin (optional) The default power configuration for DA14695 is from VBUS 5 V via power selection header J2. -
Page 28: Pcb Layout
UM-B-103 DA14695 USB Kit PCB Layout Dimensions: 100 mm × 26.5 mm × 11 mm Number of layers: 4 PCB thickness: 1.55 mm Material: FR-4 Solder mask TOP/BOTTOM: Green Silkscreen TOP/BOTTOM: White Surface finish: Che Ni/Au Figure 31: PCB Cross Section The total thickness of the board is 1.55 mm. -
Page 29: Appendix A Schematics
UM-B-103 DA14695 USB Kit Appendix A Schematics Figure 32: DA14695 SoC Section User Manual Revision 1.0 14-Feb-2019 CFR0012 29 of 34 © 2019 Dialog Semiconductor... -
Page 30: Figure 33: Uart & Jtag Interface Chip Section
UM-B-103 DA14695 USB Kit Figure 33: UART & JTAG Interface Chip Section User Manual Revision 1.0 14-Feb-2019 CFR0012 30 of 34 © 2019 Dialog Semiconductor... -
Page 31: Figure 34: Usb Hub Section
UM-B-103 DA14695 USB Kit Figure 34: USB Hub Section User Manual Revision 1.0 14-Feb-2019 CFR0012 31 of 34 © 2019 Dialog Semiconductor... -
Page 32: Appendix B Bill Of Materials
UM-B-103 DA14695 USB Kit Appendix B Bill of Materials Figure 35: Bill of Materials (BOM) User Manual Revision 1.0 14-Feb-2019 CFR0012 32 of 34 © 2019 Dialog Semiconductor... -
Page 33: Revision History
UM-B-103 DA14695 USB Kit Revision History Revision Date Description 14-Feb-2019 Initial version. User Manual Revision 1.0 14-Feb-2019 CFR0012 33 of 34 © 2019 Dialog Semiconductor... - Page 34 Terms and Conditions of Sale, available on the company website (www.dialog-semiconductor.com) unless otherwise stated. Dialog and the Dialog logo are trademarks of Dialog Semiconductor plc or its subsidiaries. All other product or service names are the property of their respective owners.
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