8 bit programmable high speed magnetic rotary encoder (14 pages)
Summary of Contents for ams AG AS5145B
Page 1
AG is now ams AG The technical content of this austriamicrosystems application note is still valid. Contact information: Headquarters: ams AG Tobelbaderstrasse 30 8141 Unterpremstaetten, Austria Tel: +43 (0) 3136 500 0 e-Mail: ams_sales@ams.com Please visit our website at...
Operation Manual AS5045 / AS5145 Demoboard 1 General Overview The AS5045/AS5145A/B is a contactless magnetic rotary encoder for accurate angular measurement over a full turn of 360°. It is a system-on-chip, combining integrated Hall elements, analog front end and digital signal processing in a single device.
AS5X45/AS5145A/B Demoboard OPERATIONAL MANUAL This configuration uses the same USB hardware connection as above, but additionally the AS5000 Programmer GUI software is running. The LCD display will be turned off and the Angle/Status bits will be displayed on the PC screen. Some extra features as zero position programming can be achieved.
Encoder selection switch The switch SW1 selects the encoder which communicates with the microcontroller through the SSI bus: Right position (default): Onboard AS5045/AS5145A/B Left Position: External AS5045/AS5145A/B connected on J6 The signals of the synchronous serial interface (DO, CLK, CSn, PROG) and the power supply (3.3V, GND) of an external device can be connected directly to J6.
4 AS5000 Programmer GUI software Installing the GUI on the PC The preliminary software is developed for a Microsoft Windows XP operating system with Service Pack 2. In addition the dotnet (.NET) framework version 2.0 or more must be installed on the PC. This package can be downloaded free of charge from the Microsoft webpage: http://www.microsoft.com/downloads/details.aspx?FamilyID=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=en Following Procedure is recommended before starting the GUI:...
The SSI tab By selecting the SSI (serial protocol for AS5040, AS5140, AS5043, AS5143, AS5045, AS5145A/B) tab, the real time information of the angular position and the status bits are displayed. See figure 4. Not used (dual die encoders only) Angle value: 12 bit absolute position: 0 to 4095 Status bits information...
AS5X45/AS5145A/B Demoboard OPERATIONAL MANUAL The OTP tab The OTP tab is normally used for the AS5000 programmer, but the OTP bits can be changed on the AS5x45 demoboard as well. Options like Zero Position, Pulses per revolution and Incremental Mode Selection can be changed by selecting the function in “Fields”, then changing the parameter in “Options for the selected field”...
AS5X45/AS5145A/B Demoboard OPERATIONAL MANUAL Index General Overview................................1 The AS5045/AS5145A/B Demoboard ..........................1 Operating the AS5045/AS5145A/B Demoboard........................ 2 Graphic LCD display..............................2 PWM LED ................................. 2 MagINc and MagDECn............................. 3 Encoder selection switch ............................4 AS5000 Programmer GUI software........................... 5 Installing the GUI on the PC .............................
AS5X45/AS5145A/B Demoboard OPERATIONAL MANUAL Revision History Revision Date Description First version March 09, 2009 Minor corrections March 25, 2009 Add AS5145A/B-I10 and AS5145A/B-I12 July 16, 2009 July 22, 2009 Minor corrections Revision 1.3, 22-Jul-2009 www.austriamicrosystems.com Page 10 of 12...
AS5X45/AS5145A/B Demoboard OPERATIONAL MANUAL Copyright Devices sold by austriamicrosystems are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. austriamicrosystems 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. austriamicrosystems reserves the right to change specifications and prices at any time and without notice.
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