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Mediatek Labs LinkIt 2523 HDK User Manual

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LinkIt 2523 HDK User's Manual
© 2015 ‐2016 MediaTek Inc.
This document contains information that is proprietary to MediaTek Inc. ("MediaTek") and/or its licensor(s). MediaTek cannot grant you permission
for any material that is owned by third parties. You may only use or reproduce this document if you have agreed to and been bound by the applicable
license agreement with MediaTek ("License Agreement") and been granted explicit permission within the License Agreement ("Permitted User"). If
you are not a Permitted User, please cease any access or use of this document immediately. Any unauthorized use, reproduction or disclosure of this
document in whole or in part is strictly prohibited. THIS DOCUMENT IS PROVIDED ON AN "AS‐IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY
AND ALL WARRANTIES OF ANY KIND AND SHALL IN NO EVENT BE LIABLE FOR ANY CLAIMS RELATING TO OR ARISING OUT OF THIS DOCUMENT OR ANY
USE OR INABILITY TO USE THEREOF. Specifications contained herein are subject to change without notice.
This document contains information that is proprietary to MediaTek Inc. ("MediaTek") and/or its licensor(s).
Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
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LinkIt 2523 HDK User's Manual
© 2015 - 2016 MediaTek Inc.

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Summary of Contents for Mediatek Labs LinkIt 2523 HDK

  • Page 1 LinkIt 2523 HDK User's Manual LinkIt 2523 HDK User's Manual © 2015 ‐2016 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s). MediaTek cannot grant you permission for any material that is owned by third parties. You may only use or reproduce this document if you have agreed to and been bound by the applicable license agreement with MediaTek (“License Agreement”) and been granted explicit permission within the License Agreement (“Permitted User”).
  • Page 2 GNSS, audio (speech, headset and speaker), MIPI, serial, camera serial interface, keypad, battery management, micro SD and eMMC portable storage support, USB (2.0). The LinkIt 2523 HDK also has built‐in antenna that is able to receive Bluetooth (2.1 to 4.0), and GNSS (GPS, GLONASS and BeiDou) signals. In addition, the USB to serial wire debug (SWD) converter and JTAG feature provides convenient development and debugging process.
  • Page 3 This section describes how to install LinkIt 2523 HDK drivers used on PCs running Microsoft Windows. To install the driver for getting the log: Connect the UART 0 on LinkIt 2523 HDK to the computer using a USB to UART cable, such as PL2303 USB to TTL cable.
  • Page 4 To install the driver for debugging: 1) Download and install the Windows serial port driver from here. 2) Connect the LinkIt 2523 HDK to the computer using the micro-USB cable 1 and the micro-USB cable 2, 3) Open Windows Control Panel, click System and: On Windows 7 and 8, click Device Manager.

  • Page 5: Removable Storage

    LinkIt 2523 HDK User's Manual Downloading the project image using the LinkIt 2523 HDK as a removable storage To update the FreeRTOS image only (SDK project image: iot_sdk_demo.bin) use the LinkIt 2523 development board as a removable disk drive according to the following steps: 1) Connect the LinkIt 2523 development board to your PC with a micro-USB cable.

  • Page 6: Hardware Description

    LinkIt 2523 HDK User's Manual 3. Hardware Description LinkIt 2523 HDK provides connections between the system on chip (SOC) and the peripherals, such as micro SD card, eMMC, MIPI LCM, serial LCM, touch panel, serial camera, sensor daughterboard, GNSS, Bluetooth, audio speech and high speed USB 2.0.
  • Page 7 LinkIt 2523 HDK User's Manual LinkIt 2523 HDK User's Guide Figure 5. LinkIt 2523 HDK’s top view Figure 6. LinkIt 2523 HDK’s bottom view © 2015 - 2016 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

  • Page 8: Microcontroller Unit

    4.2. Power This section describes the power source options for the LinkIt 2523 HDK. The HDK can operate powered by USB or a battery. To charge the battery the USB cable has to be connected. The board can enter the sleep mode using the PSRAM memory.
  • Page 9 Figure 7. The positions of J1111, J2001, J1001 to J1006, R1113, R4009, R4010 and Micro SD cardholder on the board 4.2.2. Power source for digital I/O LinkIt 2523 HDK supplies power to devices with different voltage support. GPIO voltage level customization is shown in Table 2. Jumper and resistor positions are specified in Figure 8.
  • Page 10 LinkIt 2523 HDK User's Manual Connect the jumper J1108 pins to set the power rail DVDD_VIO_Cto VIO28, as shown below. © 2015 - 2016 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).
  • Page 11 LinkIt 2523 HDK User's Manual 4.2.3. Powering on the eMMC or micro SD The LinkIt 2523 HDK supports eMMC and micro SD card for storage. The HDK operates with either eMMC or micro SD card enabled but not both at the same time.
  • Page 12 LinkIt 2523 HDK User's Manual 4.2.7. Serial flash I/O power source Table 5 provides two different settings for powering up the serial flash. Table 5. Serial flash I/O power source selection jumper Connect the jumper J1112 pins to set the power source from VIO18, as shown below.
  • Page 13 LinkIt 2523 HDK User's Manual Table 8. The LED indicators LED2001 indicates if power is supplied to both LinkIt 2523 and CMSIS‐DAP using USB connectors. indicator LED2003 indicates if the power source is from USB cable and the buck is enabled.
  • Page 14 Figure 9. The positions of LED indicators and debugging footprint 4.5. Buttons The LinkIt 2523 HDK has four buttons that could support keypad functionality. To improve the LinkIt 2523 pin usage, the buttons could be designed with double key feature, as shown in Table 9.
  • Page 15 Users are able to use camera daughterboard pin headers and sensor daughterboard pin headers for their applications. In addition LinkIt 2523 HDK provides two sets of two‐pin headers, the jumpers J1013 and J1014 for I2C, UART, EINT and GPIO. Please look up pin assignment tables to realize multi‐mode selections, see sections 4.16.1, “UART connector”...
  • Page 16 LinkIt 2523 HDK User's Manual The LinkIt 2523 HDK supports two types of display topology: MIPI DSI and serial interface with a maximum resolution of display of up to 320*320. The connectors CON6101 and CON6102 on the HDK are reserved for LCM. CON6101 supports both MIPI DSI and serial interface.
  • Page 17 4.8. Audio The LinkIt 2523 HDK is equipped with a loud speaker to enable audio playback. To apply this feature on the HDK assign the GPIO45 as an output to enable the amplifier. LinkIt 2523 HDK also supports full duplex to develop audio receive and speak at the same time for real‐time development.
  • Page 18 LinkIt 2523 HDK User's Manual © 2015 - 2016 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s). Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
  • Page 19 4.11. Camera Connect the camera daughterboard (see Figure 10) to the camera connector to enable the camera. The sensor daughterboard features are shared with camera using a jumper switch (see Table 14). The LinkIt 2523 HDK supports serial interface cameras.
  • Page 20 2, as shown below. 4.12. USB LinkIt 2523 HDK has two USB connectors, CON6401 see section 4.16.11, “USB2.0 high speed connector CON6401” and CON6601 see section 4.16.12, “CMSIS‐DAP USB 1.1 full speed connector CON6601”, as shown in Figure 18. The CON6401 is used to flash the LinkIt 2523 HDK with the LinkIt 2523 Flash Tool.
  • Page 21 The serial port also supports UART2 connectivity on the LinkIt 2523 HDK. The maximum charging current is 1.5A at 5V DC for the LinkIt 2523 HDK’s internal charger. The USB power source is passing through the connector CON6401 on the HDK.
  • Page 22 LinkIt 2523 HDK User's Manual source, as shown below. Connect the jumper J5002 pins to set the Bluetooth main power source to VBT, as shown below. Bluetooth power input Connect the jumper J5002 pins to set the Bluetooth main power source to VIO18, as shown below.
  • Page 23 LinkIt 2523 HDK User's Manual 4.15. Connectors The LinkIt 2523 HDK supports connectors to capture a signal, plug‐in an external component, update an image and more. This section provides details and pin definitions for the connectors. 4.16.1. UART connector The jumper J1013 is reserved for user applications that can be configured for different modes, such as UART, GPIO and EINT.
  • Page 24 LinkIt 2523 HDK User's Manual DVDD_ CMRS GPIO LSRSTB CLKO EINT GPCOU JTDI MC1_D VIO_A NTER VBAT VBAT DVDD_ CMPD GPIO LSCK1 DAICLK MA_SPI MA_SPI JTMS MC1_D SLV_S VIO_A 2_CS 3_CS 0_CS VCAMA VCAM DVDD_ CMCS GPIO LPTE CMCSD EINT...
  • Page 25 LinkIt 2523 HDK User's Manual assignment table to fit user scenario if sensor daughterboard unplugged, as described in Table 23. 4.16.3. USB2.0 high speed connector CON6401 Connector CON6401 (see Figure 16 and Figure 18) followed USB 2.0 high speed standard which makes LinkIt 2523 to communicate with other compatible devices.
  • Page 26 LinkIt 2523 HDK User's Manual Pin number Description Pin number Description VUSB_BB ‐ ‐ 4.16.4. CMSIS‐DAP USB 1.1 full speed connector CON6601 Connector CON6601 (see Figure 17 and Figure 18) is able to update binary code to LinkIt 2523 by CMSIS‐DAP without other tools.
  • Page 27 LinkIt 2523 HDK User's Manual Warning Note1: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.