Kneron KL520 Series User manual

Kneron KL520 series AI SoC – Development kit product information (Version 0.2)
- 1 -
Kneron KL520 series AI SoC
Development Kit
(BGA159, 9x6)
Product Information

Kneron KL520 series AI SoC – Development kit product information (Version 0.2)
- 2 -
Revision History:
version description date
0.1 Initial version 2019/08/19
0.2 Increase accessories information 2019/08/27
0.3 Change Picture 2019/10/08
0.4 Change Picture 2020/03/10
Notice:
1. Kneron Inc. (Kneron) may make changes to any information in this document at any time without any
prior notice. The information herein is subject to change without notice. Do not finalize a design with this
information.
2. THIS DOCUMENT IS PROVIDED “AS IS” WITHOUT ANY WARRANTY OR CONDITION OF ANY KIND, EITHER
EXPRESS, IMPLIED OR STATUTORY, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OR CONDITION
WITH RESPECT TO MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE, OR NON-
INFRINGEMENT.KNERON DOES NOT ASSUME ANY RESPONSIBILITY AND LIABILITY FOR ITS USE NOR FOR
ANY INFRINGEMENT OF PATENTS OR OTHER RIGHTS OF THE THIRD PARTIES WHICH MAY RESULT FROM
ITS USE.
3. Information in this document is provided in connection with Kneron products.
4. All referenced brands, product names, service names and trademarks in this document are the property
by their respective owners

Kneron KL520 series AI SoC – Development kit product information (Version 0.2)
- 3 -
Revision History: .........................................................................................................................................- 2 -
1. Overview .............................................................................................................................................- 4 -
1.1 General description....................................................................................................................... - 4 -
2. Hardware description .........................................................................................................................- 4 -
2.1 Product SPEC ................................................................................................................................. - 4 -
2.2 Inside the box ................................................................................................................................ - 5 -
2.3 Assembly ........................................................................................................................................ - 5 -
2.4 Main board description ................................................................................................................ - 6 -
2.5 Pin mux and Jumpers .................................................................................................................... - 8 -
3. Peripherals ........................................................................................................................................ - 11 -
3.1 5V adaptor ....................................................................................................................................- 11 -
3.2 UART cable....................................................................................................................................- 11 -
3.3 JTAG cable (not included in Kneron shipping box) ....................................................................- 12 -
3.4 Connecting UART .........................................................................................................................- 13 -
3.5 Connecting JTAG ..........................................................................................................................- 13 -
3.6 Connecting 5V Power...................................................................................................................- 14 -
4. KL520 Power on and System............................................................................................................ - 15 -
4.1 Bring Up procedure ......................................................................................................................- 15 -
4.2 Connecting JTAGs .........................................................................................................................- 16 -

Kneron KL520 series AI SoC – Development kit product information (Version 0.2)
- 4 -
1. Overview
1.1 General description
Kneron KL520 series is an AI SoC targeting smart-home and IoT segment with Kneron NPU core inside to
accelerate neural network processing and enabling devices with edge AI ability to achieve Kneron’s AI
everywhere vision.
This document describes how to use the KL520 AI SoC Development Kit (BGA159, 9x6).
2. Hardware description
2.1 Product SPEC
Product name Kneron KL520 series AI SoC Development Kit (BGA159, 9x6)
Kneron part number KP52B1330-M1
Main board dimension 90(L) x 60(W) x 1.6(H) mm
Working voltage 5V
DDR memory size 64MB
SPI NOR Flash size 32MB
Switch & button
Power switch x 1, PTN button x 1, Reset button x 1 , Boot Switch
X1
Interface - Power DC Jack (5V) x 1
Interface – Fixed I/O UART x 2, JTAG x 1, micro USB (client) x 1
FPC conn x 2 (2-lane MIPI camera)
FPC conn x 1 (DVP parallel display)
SDIO x 1
Interface – programmable
I/O
Pinmux select (1.27mm pitch)
Accessory - Camera sensor RGB sensor: GalaxyCore GC2145 2.0M CMOS
NIR sensor: SmartSens SC132GS 1.3M CMOS (940nm, Global shutter)
Accessory - NIR LED Lextar PR88F14 940nm NIR LED
Accessory - LCD Display ARMFLY TR433C1 4.3” 480x272 TFT LCD

Kneron KL520 series AI SoC – Development kit product information (Version 0.2)
- 5 -
2.2 Inside the box
i. Main board x 1
ii. Camera & camera daughter board
x 2
iii. LCD panel & LCD daughter board x
1
iv. FPC x 3
v. Power adaptor (5V, 4A) x 1
vi. USB to TTL cable (3.3V) x 2
vii. Micro USB cable x 1
viii. Acrylic stand & screw set x 1
2.3 Assembly

Kneron KL520 series AI SoC – Development kit product information (Version 0.2)
- 6 -
2.4 Main board description
Here’s the overview of all functions on the main board.
Figure, Top overview
Figure, Bottom overview

Kneron KL520 series AI SoC – Development kit product information (Version 0.2)
- 7 -
As you can see in the picture, here’s the major component you must know before you start your design:
KL520: AI SoC.
5V Power (DC Jack): 5V input for the development board, used a 5V/4A adaptor.
USB Power: 5V input for the Power bank.
Power Switch: a switch for the adapter or power bank, you can see LED on when you turn on the
switch.
UART0/UART4: a connector that uses a TTL to USB cable for developing.
JTAG: a connector that uses JTAG/ICE cable for developing.
PTN: a button that used to turn on the KL520.
Reset BTN: a button that used to reset the KL520.
USB connector: a micro USB connector that used USB connector for developing.
Boot Switch: Selection for boot from SPI or boot from UART.

Kneron KL520 series AI SoC – Development kit product information (Version 0.2)
- 8 -
2.5 Pin mux and Jumpers
To make some flexibility for the developers, the development board has made some jumper options. Most
IOs has series jumper on it. If users want to do some other thing that do not include in development
board, he can just take off the jumper and jump to other peripherals or even scope for debugging. Some
IOs also offers different functionality, users can simply choose different functions by choosing different
jumper location. Bellowing table shows the hardware setting on the development board. Please also be
aware of that the content has the “/” word means that it has multiple functions and can be configured by
choosing different jumper locations.
Table, Development board HW setting

Kneron KL520 series AI SoC – Development kit product information (Version 0.2)
- 9 -
Below picture shows the jumper option. These jumpers enable you to select between SDIO and others.
Figure. Jumpers to switch SDIO or GPIO.
KL520 pin
number Default state Development Board hardware Setting
K11 X_SD_CLK LC_DATA[16]/SD_CLK
J15 X_SD_CMD LC_DATA[17]/SD_CMD
L10 X_SD_DAT[0] X_SD_DAT[0]/GPIO1_CAM/GPIO1_PANEL
K14 X_SD_DAT[1] X_SD_DAT[1]/GPIO2_CAM/GPIO2_PANEL
K15 X_SD_DAT[2] X_SD_DAT[2]/GPIO3_CAM/GPIO3_PANEL/UART4_RX
L11 X_SD_DAT[3] X_SD_DAT[3]/GPIO3_CAM/GPIO3_PANEL/UART4_TX
Table, equivalent table for Figure above.

Kneron KL520 series AI SoC – Development kit product information (Version 0.2)
- 10 -
Bellowing picture shows the jumper option which enable user to select between JTAG and I2C or I2S.
Figure, Jumpers to switch JTAG / I2C / I2S.
KL520 pin
number Default state Development Board hardware Setting
E11 X_JTAG_TRST_N JTAG_TRST_N/camera1(I2C)
C15 X_JTAG_TDI JTAG_TDI/camera1(I2C)
E15 X_JTAG_SWDITMS JTAG_SWDITMS/I2S0_BCLK
F14 X_JTAG_SWCLKTCK JTAG_SWCLKTCK/I2S0_RCLK
B15 X_JTAG_TDO JTAG_TDO/I2S0_SDATA
Table, equivalent table for the Figure above
Boost jumper, SW3, a jumper that can helps user to config boot mode.
When SW3=0, it’s boot from UART. When SW3=1, it’s boot from JTAG

Kneron KL520 series AI SoC – Development kit product information (Version 0.2)
- 11 -
3. Peripherals
Here list the peripherals you need for the board development.
3.1 5V adaptor
A 5V/4A 2.5mm DC adaptor is needed to provide the power of development board.
Figure, 5V/4A adaptor
3.2 UART cable
Figure, USB to TTL(3.3V) cable

Kneron KL520 series AI SoC – Development kit product information (Version 0.2)
- 12 -
3.3 JTAG cable (not included in Kneron shipping box)
Figure, JTAG cable

Kneron KL520 series AI SoC – Development kit product information (Version 0.2)
- 13 -
3.4 Connecting UART
3.5 Connecting JTAG
Connecting JTAG cable like picture shown below:
Figure, connecting JTAG cable
UART 0
pin define
GND
Rx
Tx
VCC
UART
4 pin define
GND ●
Rx ●
Tx ●
VCC ●

Kneron KL520 series AI SoC – Development kit product information (Version 0.2)
- 14 -
3.6 Connecting 5V Power
Figure, connecting 5V power
Figure, connecting USB5V power

Kneron KL520 series AI SoC – Development kit product information (Version 0.2)
- 15 -
4. KL520 Power on and System
4.1 Bring Up procedure
1. Open UART COM port debug windows (Teraterm or Putty) /UART0: Baud rate: 115200
Figure, using teraterm or putty to see the UART message
2. Turn ON power switch.
Figure, turn on power switch
3. Wake up chip from RTC power domain.
You will see boot message when you press PTN button
Figure, press the PTN and the message you’ll see

Kneron KL520 series AI SoC – Development kit product information (Version 0.2)
- 16 -
4.2 Connecting JTAGs
Open KL520 Daisy-chain project.
On SCPU JLink Setting
Edit SCPU JTAG JLink Setting
Figure, SCPU JTAG JLink Setting