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Power Supply

Copyright © 2020 Shenzhen Goodix Technology Co., Ltd. 6

5

Power Supply

The GR5515 SK Board provides three power supply modes: power supply via USB connection, power supply from
external sources and from lithium battery.

Power supply via USB

connection

Power supply from

external sources

Figure 5-1 Power supply (top view)

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Содержание GR5515

Страница 1: ...GR5515 Starter Kit User Guide Version 1 5 Release Date 2020 05 30 Shenzhen Goodix Technology Co Ltd...

Страница 2: ...h technical specifications Shenzhen Goodix Technology Co Ltd hereafter referred to as Goodix makes no representation or guarantee for this information express or implied oral or written statutory or o...

Страница 3: ...quickly in developing Bluetooth Low Energy Bluetooth LE products and applications with GR551x System on Chips SoCs Audience This document is intended for GR551x user GR551x developer GR551x tester Te...

Страница 4: ...mple Running 2 2 4 Mobile Connection Test 2 3 Hardware Overview 3 3 1 Hardware Layout 3 3 2 Block Diagram 4 4 Interface MCU 5 4 1 J Link Port 5 4 2 CDC Virtual Serial Port 5 4 3 Software Download Port...

Страница 5: ...mple projects provided in a GR551x SDK to a GR5515 SK Board for development and debugging To make best use of the GR5515 SK it is recommended to refer to the following documents Table 1 1 Reference do...

Страница 6: ...henzhen Goodix Technology Co Ltd 2 SEGGER J Link OB that supports debugging UART to USB connector Micro USB connector which establishes connection between a GR5515 SK Board and a PC 1 44 inch color TF...

Страница 7: ...ion Windows Windows 7 or later versions or Ubuntu 16 04 LTS or later versions both 32 bit and 64 bit are acceptable Keil MDK5 An integrated development environment IDE Available at http www keil com d...

Страница 8: ...en the File Explorer of the PC and check whether J Link is in the list of Device Manager Ports COM LPT J Link in the list indicates that power and connection settings are completed and downloading and...

Страница 9: ...espectively The board mainly integrates an interface microcontroller unit MCU a power module Arduino Uno Shield Connectors buttons and LEDs a LCD connector a Bluetooth LE RF module and an on board QSP...

Страница 10: ...am The following block diagram of a GR5515 SK Board shows connections between modules External supply Power Switch S5 Battery LDO 1 8 V 3 3 V USB POWER 5 V Communication Interface MCU GR5515 Level shi...

Страница 11: ...Serial Port J Link OB chip internally integrates CDC serial protocols which allow you to open the J Link CDC virtual serial port on the PC to debug with UART Table 4 1 Relationship between UART conne...

Страница 12: ...6 5 Power Supply The GR5515 SK Board provides three power supply modes power supply via USB connection power supply from external sources and from lithium battery Power supply via USB connection Power...

Страница 13: ...8 V to 3 3 V default 3 3 V Power supply from external sources Power the board by external sources 5 V with current passing through the on board LDO The default LDO output voltage is 3 3 V Power supply...

Страница 14: ...Power Supply Copyright 2020 Shenzhen Goodix Technology Co Ltd 8 Figure 5 3 Voltage protection diodes for power supply via USB connection from external sources...

Страница 15: ...as G sensor and heart rate sensor through Arduino Uno Shield Connectors Figure 6 1 Arduino Uno Shield Connectors on GR5515 SK Board The I O voltage of Arduino Uno Shield Connectors can be set to 1 8 V...

Страница 16: ...tton3 GPIO12 S1 UP Button4 GPIO13 S2 DOWN Button5 AON_GPIO1 S8 OK AON_GPIO1 It can be configured to wake the system up from sleep mode in application just like the PCS project in SDK Button6 CHIP_EN S...

Страница 17: ...addition the LCD display is pluggable You can replace it with different size displays supporting the same type of connection interfaces to adapt to different application scenarios Figure 8 1 Interfac...

Страница 18: ...sh schematic diagram Note QSPI flash pins buttons UP LEFT RIGHT DOWN and Arduino Uno Shield Connectors pins GPIO8 and GPIO9 multiplex By default the zero ohm resistor is disconnected and QSPI flash pi...

Страница 19: ...ircuit signal is directly connected with the test line not the board level antenna any more The other end of the test line is connected to a test instrument through a standard SMA connector Note It is...

Страница 20: ...umption of the GR551x SoC on the GR5515 SK Board with a test instrument On the board VBAT powers VBATH VBATL and VBAT RF of the GR551x SoC through the jumper pin J10 Therefore you can connect a test i...

Страница 21: ...op is in direct proportion to current Therefore the oscilloscope display shows a current change curve You can also take average or integral values of the measured data to analyze the current consumpti...

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