AS5030-TS_EK_DB

AS5030-TS_EK_DB Datasheet


The AS5030 is a contactless magnetic rotary encoder for accurate angular measurement over a full turn of It is a system-on-chip, combining integrated Hall elements, analog front end and digital signal processing in a single device. To measure the angle, only a simple two-pole magnet, rotating over the center of the chip is required. The absolute angle measurement provides instant indication of the magnet’s angular position with a resolution of 8 bit = 256 positions per revolution. This digital data is available as a serial bit stream and as a PWM signal. In addition to the angle information, the strength of the magnetic field is also available as a 6-bit code. Data transmission can be configured for 1-wire PWM , 2-wires CLK, DIO or 3-wires CLK, DIO, CS . A software programmable OTP zero position simplifies assembly as the zero position of the magnet does not need to be mechanically aligned. A Power Down Mode together with fast startup- and measurement cycles allows for very low average power consumption and makes the AS5030 also suitable for battery operated equipment.

Part Datasheet
AS5030-TS_EK_DB AS5030-TS_EK_DB AS5030-TS_EK_DB (pdf)
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AASS50530011
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OPERATION MANUAL
1 General Description

The AS5030 Demoboard

The AS5030 demoboard measures the angle of a diametral magnet turning over the AS5030 sensor. It is controlled by a built-in microcontroller and shows the result on the LCD display or on the PC GUI via the USB interface. The board is powered from the USB plug if it is connected to a PC, or from an external power supply on the DC Jack >7.5V if the board works in stand alone mode without any PC. The angle and AGC values are displayed on the LCD screen in both modes.

Dimensions of the demo board 77mm x 84mm x inch .

Figure 2 AS5030 demoboard, BOTTOM side

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AS5030 8 bit high speed magnetic rotary encoder

Demoboard Operation Manual
2 AS5030 Software

Getting Started

This software allows you to become familiar with the principle of the AS5030 sensor. In order to get started, you need:
• The AS5030 Demo Software installer, downloadable on the Austriamicrosystems website
• or Windows operating system
• one free USB slot on your PC to connect the demoboard

Installing the Software

The installation process consists of three steps
• Unzip the Demoboard software installation AS5030_DemoBoard_Software_Setup.zip in any local directory
• Execute the .exe setup file
• Follow the instructions on the screen

The demoboard and the software don’t need any other files or drivers to be installed on the computer.

Software Usage

Before starting the software the board needs to be connected to the PC. After starting the software, two modes can be selected SSI-Readout and OTP.

For both modes, the following functions are present:

Figure 3 USB Connect

USB:

Connected/No connection. If the demoboard is correctly connected to the PC, the software should find immediately the demo board.

Onboard / External Switch the actual AS5030 sensor from the on-board one by default , to an external AS5030 connected on the “external AS5030 header” see Figure

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AS5030 8 bit high speed magnetic rotary encoder

Demoboard Operation Manual

SSI-Readout

After starting the demo software and selecting the “SSI-Readout” tab, the magnet angle, AGC value, PWM out value are displayed see Figure For a correct reading of the magnet angle, the airgap between the AS5030 top side and the magnet should be chosen that the 0<AGC<63. If the AGC value reaches 63, the ALARM LED will blink to indicate that the magnet is too far away from the sensor, and the measurement is not accurate or not valid.

Figure 4 SSI-Readout tab

Periodic Readout By unchecking this option, the angle and AGC values are not read anymore, and the displayed value keep their last state during the normal readout. The read period can be adjusted between 50ms and 1s default 200ms , to have more or less reactivity.

State Displays the state of the C2 pin on the selected AS5030. By default C2 = 0 three wires mode . The Lock indicator is the state of the lock bit in the serial stream. This bit should be always enabled.

Low Power / Ultra Low Power / Wakeup Function not yet implemented

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AS5030 8 bit high speed magnetic rotary encoder

Demoboard Operation Manual

The “OTP” tab, displays the OTP configuration bit of the selected AS5030 sensor.
• In Onboard mode, the configuration bits can be temporary changed access to the Read and Write functions only . After a new power up, the configuration bits are set back to their default state.
• In External mode, the AS5030 can be temporary configured, and can be permanently programmed too. The Read, Write and Prog functions are available.

Figure 5 OTP tab

Zero Position Programming The Zero Position Programming tool is used to assign a zero value to a defined mechanical position. Move the magnet to a desired reference position, which is the mechanical Click on “Get absolute position”. The actual angle seen on the sensor side is displayed in decimal and binary Z7..0 bits . Click on “Write zero position”. The bits Z7..0 are written to the Zero Position register of the AS5030. Now the actual mechanical angle is the 0° angle on the AS5030 side. This value can be permanently fused on an external AS5030 sensor by clicking on Prog.

OTP registers In On-board mode, the OTP registers can’t be permanently fused.
• Read Reads back the OTP configuration registers of the selected sensor.
• Write Writes the configuration bits as represented in the checkboxes to the selected AS5030. Those bits won’t be permanently written, and will be lost if the sensor is powered down.
• Prog external mode only After having written the configuration bits to the AS5030, those bits can be permanently fused by clicking on Prog. After a new power up of the device, this new configuration is enabled.
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Datasheet ID: AS5030-TS_EK_DB 519738