as5013 two-dimensional magnetic position sensor with ... user manual-272849.pdf · user manual...

www.ams.com Revision 2.1 / 2013/01/08

User Manual – AS5013 Demo Kit

AS5013

Two-dimensional Magnetic Position

Sensor with Digital Coordinates

output

AS5013 – Demo Kit User Manual

www.ams.com Revision 2.1 / 08/01/13 page 1/12

Table of Contents

1. General Description ............................................................................................................... 2

2. Package and Board Description ............................................................................................ 2

3. How to get the kit running ...................................................................................................... 4

4. Schematics ............................................................................................................................ 7

5. Layout .................................................................................................................................... 9

6. Ordering Information ............................................................................................................ 10

Copyright ..................................................................................................................................... 11

Disclaimer ................................................................................................................................... 11



1. General Description

The AS5013 is a complete Hall Sensor IC for smart navigation key applications to meet the low

power requirements and host SW integration challenges for products such as cell phones and

smart handheld devices. Due to the on chip processing engine, system designers are not tasked

with integrating complex SW algorithms on their host processor thus leading to rapid

development cycles.

The AS5013 single-chip IC includes 5 integrated Hall sensing elements for detecting up to ±2mm

lateral displacement, high resolution ADC, XY coordinate and motion detection engine combined

with a smart power management controller.

The X and Y positions coordinates and magnetic field informat ion for each Hall sensor element

are transmitted over a 2-wire I²C interface to the host processor.

The AS5013 is available in a small 16-pin 4x4mm QFN package and specified over an operating

temperature of -20 to +80°C.

2. Package and Board Description

Demo Kit Contents

The demo kit includes following items listed below in .

Table 1: Demo Kit Contents

Pos Item Comment

1 AS5013 Demo board AS5013 Demo in gamepad-shape

2 USB 2.0 cable

3 USB Stick with Software

Board Descriptions

The AS5013 demo board consists of an EasyPoint™ module from Speedtech and an USB

interface PCB. The whole system is USB powered.

Once plugged on a PC running Windows, the AS5013 demo board works like a standard three-

buttons analog HID joystick, and can be used by any game or application supporting two-axis

analog joysticks under Microsoft Windows.



Figure 1: AS5013-DB-2 Demo board

EasyPoint™ module

Moving the EasyPointTM

knob acts like an analog joystick, sending progressive XY coordinates

to Windows via USB.

Button EP (EasyPoint™ module push)

The EasyPoint™ module push button is used in different ways:

Mode 0 (default): Button EP emulates the standard HID button I (simultaneously with

Button ). Thus when using the AS501x evaluation software, button EP emulates the

left mouse button

Mode 1: Button EP is disabled. Button is still active as standard HID button I.

Buttons , , :

Those switches are standard HID gamepad buttons I, II and III. When using the AS501x

evaluation software, button emulates the left mouse button, and button emulates the right

mouse button.

USB plug (to PC) Horizontal mode-, Hall Push-, Center- LED

Joystick button , ,

EasyPointTM

Module

Direction Switch Vertical mode LED



Direction Switch

The demo board can be used as a standard game pad when held horizontally, or as a remote

control or mobile phone when held vertically. Select the orientation by changing the position of

switch SW1. The actual position is indicated by the LEDs DS1 (Vertical) or DS2 (Horizontal).

Figure 2: Direction Switch options

1

2

3

1

2

3

UPUP

UP

RIGHTLEFT

DOWN

DIRECTION

DIRECTION

UP

RIGHTLEFT

DOWN

Horizontal:

Game pad mode

Vertical:

Remote control mode

When the position SW1 is changed, a zero position calibration is performed: a new zero position

will be set, the actual mechanical position of the knob is considered as the coordinate (0,0). This

procedure is necessary to compensate an inaccurate centering of the module’s knob. The

automatic centering calibration is performed each time the demo board is powered on as well.

Center LED and Hall Push LED

The Center LED is ON when the knob coordinate is exactly (0,0) . This coordinate is after

calibration. The Hall Push LED is ON when the EP button of the module is pushed and detected

via the hall sensors only. This function doesn’t use the dome switch contact of the module, but

the magnetic field change on the vertical direction. The Hall push LED is enabled in mode 0, 1

and 2 only. See next chapter for information about the demo board modes.

3. How to get the kit running

First Steps

1. Install the Evaluation Software. The Evaluation Software is located on the USB Stick or

can be downloaded from the ams homepage. For detailed instructions refer to the

Evaluation Software Manual.



Software and manual download: http://www.ams.com/eng/Products/Magnetic-

Encoders/EasyPoint-Joystick-Encoder

2. Connect the demo board to the PC using the USB cable

3. Start the Mouse Emulator and try the different Plug-Ins. For detailed instructions refer to

the Evaluation Software Manual.

Advanced Steps and Information

The demo board is listed as a composite HID device in the Windows Device Manager:

Windows detects as a standard HID-compliant game controller. This part doesn’t

need any driver.

Windows detects as well an HID-compliant device. This part doesn’t need any driver.

Figure 3: Windows Device Manager

Demoboard modes

The AS5013 Demoboard can be configured in different ways without any software.

Mode 0: Without pressing any key, power up the demoboard with the USB cable. HID

Joystick button I is controlled by the EP button (from the EasyPoint™ module) and

Button .

Mode 1: Push and hold Button and power up the demoboard with the USB cable.

The LED “Center” blinks 4 times. HID Joystick button I is controlled by the Button

only. EP button is disabled


The LED “Hall Push” blinks 4 times. HID Joystick button I is controlled by the Button ,

and by the “Hall Push” function. EP button is disabled.

HID game controller

HID compliant device

controller

http://www.ams.com/eng/Products/Magnetic-Encoders/EasyPoint-Joystick-Encoder

http://www.ams.com/eng/Products/Magnetic-Encoders/EasyPoint-Joystick-Encoder



The “Hall Push” is an algorithm running in the demoboard MCU, reading the five Ha ll

Element C1..C5, and determines if the EP button has been pushed, without any

electrical contact. The restriction of this mode is that the detection is working when the

EasyPoint™ module button is pushed on the center position area.


The LED “Center” and “Hall Push” blink 4 times simultaneously.

This mode is similar to Mode 0, but the I²C communication between the MCU and

AS5013 is restricted to XY coordinate exchange only. The Hall Push function is totally

disabled.

This mode is used for debug mode, if timing analysis, with e.g. an oscilloscope, is

required, and simplifies the readout of signal and timing interpretation.

Firmware update mode: Push and hold Button simultaneously and power up

the demo board with the USB cable.

All the LEDs are ON. The AS5013 is in “Bootloader mode”. This mode is used to update

the firmware of the demo board if a new file is available on the ams website:

Firmware update:

To update the firmware, just open the AS501X Evaluation Software 4.1.6 or newer and connect

the demoboard with the USB cable while pressing all three buttons as shown below. A window to

choose the firmware file will pop up automatically.

Figure 4: Firmware Update Instructions



4. Schematics

Figure 5: AS5013_DB_2.1 Schematics

The microcontroller C8051C320 (U1) from SiLabs includes an on-chip USB interface. The

firmware is stored in its internal flash memory (16kB).

The whole power supply is taken from the USB bus by the microcontroller, and converts it

internally to 3.3V. No external LDO is required. The AS5013 is directly powered (VDD and

VDDp) by this 3.3V supply.

Connector J4 is used if an external MCU has to be connected to the AS5013 of the demo board,

instead of the C8051F320. In that case, cut the PCB tracks (bottom side) to disconnect the

N40P112 module from the MCU.

1 2 3 4 5 6

J3

USB_mini P0.1 1 P0.0 2

P2.7 11 P2.6 12 P2.5 13 P2.4 14 P2.3 15 P2.2 16 P2.1 17 P2.0 18 P1.7 19 P1.6 20 P1.5 21 P1.4 22 P1.3 23 P1.2 24 P1.1 25 P1.0 26 P0.7 27 P0.6 28 P0.5 29 P0.4 30 P0.3 31 P0.2 32

GND 3

D+ 4 D- 5

VDD 6 RegIn 7

VBUS 8

RST/C2CK 9 P3.0/C2D 10

U1

C8051F320

GND

GND

R20 2.2k

R16 4.7k R15 4.7k

R10 100k

C2 1u

C1 10u

Vusb

3.3V

3.3V

Vusb

GND

GND

1 2 3 4

J2

Header 4

ISP

USB SCL SDA

INTn

Button2n R9 100k Button1n

3.3V

Button3n R8 100k

DS3 LED_Y

DS4 LED_G

Vusb

R4 750R

R3 750R Hall Push

Center (0,0)

R6 100k

1 2

3 4

SW3

Switch_SKHC

1 2

3 4

SW2

Switch_SKHC GND GND

Button2n

GND

INTn GND

ButtonDOMEn

3.3V 3.3V

DS5 LED_G DS6

LED_G DS7 LED_G DS8

LED_G DS9 LED_G DS10


LED_G DS13 LED_G

SCL SDA

C4 470n

C3 470p

C5 1u

R12 100k

GND

R21 2.7k

R5 nc GND

GND

R17 nc

R18 0R

3.3V

RESETn

RESETn

SCL SDA RESETn

GND

PS2_CLK PS2_DATA 1 2 3 4

J1

Header 4 GND Vusb

1 2 3 4 5 6 7 8 9 10

11 12 13 14 15 16

J4

Header 8X2

AMS LG1

AMS Logo

R11 100k

I²C addr = 0x40

R13 nc R14 nc

PS/2

EasyPoint Module

Vusb

VDDp 1 VDD 2 GND 3 SDA 4 SCL 5 RESET/ 6 INT/ 7 SWITCH/ 8

0

ADDR 9

U2

NxxP11x

ButtonDOMEn

3.3V 3.3V

INTn

2 1 3

5 4 6

S1

MCLSS22

1 2

3 4

SW1

Switch_SKHC GND

Button1n

DIR

GND

DIR

LEDh LEDv

DS1 LED_R

DS2 LED_R R2 750R

R1 750R

OUT0 4 OUT1 5 OUT2 6 OUT3 7 OUT4 8 OUT5 9 OUT6 10 OUT7 11 OUT8 14 OUT9 15

OUT10 16 OUT11 17 OUT12 18 OUT13 19 OUT14 20 OUT15 21

XERR 22

SDO 23

GSCLK 24 TEST 25 Iref 26

VCC 27 PD 29

GND 30

OEN 31

LD 32 CLK 1 SDI 2

MODE 3

EPAD 0

U3

AS1112

3.3V

NSS MOSI MISO SCK

NSS MOSI MISO SCK

GND

GND

GND GND

CLR 12

QD 7 QE 5 QF 4 QG 6 QH 14 QI 13 QJ 15 QL 1 QM 2 QN 3

CLKI 11 CLKO 9 CLKO 10 VCC 16

GND 8

U4

M74HC4060M1R

3.3V

GND

GND

GND

R19 4.7k

3.3V

DS14 LED_G DS15



LED_G DS20 LED_G

VUSB

Button3n

GND GND

Vertical mode

Horizontal mode

R7 nc ButtonDOMEn



Figure 6: Disconnecting the Module from the MCU

Connector J1 is not used and connector J2 is used for ISP programming of the microcontroller

only. All the switches (dome switch: Button EP, Button I, Button II, Button III) are connected

directly to the microcontroller. The unique I²C serial bus (SCL, SDA) controlled by the C8051

microcontroller is used for the EasyPointTM

module (AS5013). The interrupt output INTn is

connected directly to the MCU interrupt input.

Cut tracks along the yellow line



5. Layout

Figure 7: PCB Top and Bottom View

PCB Top view PCB Bottom view



6. Ordering Information

Table 2: Ordering Information

Ordering Code Description comments

AS5013-DB-2 AS5013 Demo Kit AS5013 Demo board in gamepad-shape



Copyright

Copyright © 1997-2012, ams AG, Tobelbader Strasse 30, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered ®. All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies.

Disclaimer

Devices sold by ams AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. ams AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. ams AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with ams AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life sustaining equipment are specifically not recommended without additional processing by ams AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. The information furnished here by ams AG is believed to be correct and accurate. However, ams AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of ams AG rendering of technical or other services.

Contact Information

Headquarters

ams AG Tobelbader Strasse 30 8141 Unterpremstaetten Austria T. +43 (0) 3136 500 0 For Sales Offices, Distributors and Representatives, please visit: http://www.ams.com/contact

Mouser Electronics

Authorized Distributor

Click to View Pricing, Inventory, Delivery & Lifecycle Information: ams:

AS5013-DB-2

http://www.mouser.com/ams

http://www.mouser.com/access/?pn=AS5013-DB-2

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