AN 773: Drive-On-Chip Design Example for Intel® MAX® 10 Devices

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ID 683072
Date 7/26/2023
Public
Document Table of Contents
Document Table of Contents x
1. About the Drive-On-Chip Design Example for Intel® MAX® 10 Devices 2. Features of the Drive-on-Chip Design Example for Intel® MAX® 10 Devices 3. Getting Started with the Drive-On-Chip Design Example for Intel® MAX® 10 Devices 4. Rebuilding the Drive-On-Chip Design Example for Intel® MAX® 10 Devices 5. About the Scaling of Feedback Signals 6. Motor Control Software 7. Functional Description of the Drive-on-Chip Design Example 8. Achieving Timing Closure on a Motor Control Design 9. Design Security Recommendations 10. Reference Documents for the Drive-on-Chip Design Example 11. Document Revision History for AN 773: Drive-on-Chip Design Example for Intel® MAX® 10 Devices
3. Getting Started with the Drive-On-Chip Design Example for Intel® MAX® 10 Devices x
3.1. Software Requirements for the Drive-On-Chip Design Example for Intel® MAX® 10 Devices 3.2. Hardware Requirements for the Drive-On-Chip Design Example for Intel® MAX® 10 Devices 3.3. Downloading and Installing the Design 3.4. Setting Up the Motor Control Board with your Development Board for the Drive-On-Chip Design Example for Intel® MAX® 10 Devices 3.5. Importing the Drive-On-Chip Design Example Software Project 3.6. Configuring the FPGA Hardware for the Drive-On-Chip Design Example for Intel® MAX® 10 Devices 3.7. Programming the Nios II Software to the Device for the Drive-On-Chip Design Example for Intel® MAX® 10 Devices 3.8. Applying Power to the Power Board 3.9. Debugging and Monitoring the Drive-On-Chip Design Example with System Console 3.10. System Console GUI Upper Pane for the Drive-On-Chip Design Example 3.11. System Console GUI Lower Pane for the Drive-On-Chip Design Example 3.12. Controlling the DC-DC Converter 3.13. Tuning the PI Controller Gains 3.14. Controlling the Speed and Position Demonstrations 3.15. Monitoring Performance
3.2. Hardware Requirements for the Drive-On-Chip Design Example for Intel® MAX® 10 Devices x
3.2.1. Preparing the Rechargeable Battery
4. Rebuilding the Drive-On-Chip Design Example for Intel® MAX® 10 Devices x
4.1. Changing the Intel® MAX® 10 ADC Thresholds or Conversion Sequence 4.2. Generating the Qsys System 4.3. Compiling the Hardware in the Intel Quartus Prime Software 4.4. Generating and Building the Nios II BSP for the Drive-On-Chip Design Example 4.5. Software Application Configuration Files 4.6. Compiling the Software Application for the Drive-On-Chip Design Example 4.7. Programming the Design into Flash Memory
4.5. Software Application Configuration Files x
4.5.1. Defining a New Motor or Encoder Type
5. About the Scaling of Feedback Signals x
5.1. Signal Sensing in Sigma-Delta and MAX 10 Integrated ADCs 5.2. Signal Scaling in the Software of the Drive-on-Chip Design Example 5.3. Scale Factors for the Drive-on-Chip Design Example in the System Console Toolkit
6. Motor Control Software x
6.1. Viewing Motor Control Software Help Files
7. Functional Description of the Drive-on-Chip Design Example x
7.1. Processor Subsystem 7.2. Six-channel PWM Interface 7.3. DC Link Monitor 7.4. Drive System Monitor 7.5. Quadrature Encoder Interface 7.6. Sigma-Delta ADC Interface for Drive Axes 7.7. Intel® MAX® 10 ADCs 7.8. ADC Threshold Sink 7.9. DC-DC Converter 7.10. Motor Control Modes 7.11. FOC Subsystem 7.12. DEKF Technique 7.13. Signals 7.14. Registers
7.4. Drive System Monitor x
7.4.1. Drive System Monitor States for the Drive-on-Chip Design Example
7.6. Sigma-Delta ADC Interface for Drive Axes x
7.6.1. Offset Adjustment for Sigma-Delta ADC Interface
7.9. DC-DC Converter x
7.9.1. DC-DC Control Simulink Models 7.9.2. Sigma-Delta ADC Interface for DC-DC Converter
7.9.1. DC-DC Control Simulink Models x
7.9.1.1. DC-DC Control Block 7.9.1.2. Generating VHDL for the DSP Builder for Intel FPGAs Models for the DC-DC Converter
7.9.1.1. DC-DC Control Block x
7.9.1.1.1. DC-DC Model and VHDL Entity Signal Names and Data Format
7.11. FOC Subsystem x
7.11.1. DSP Builder for Intel FPGAs Model for the Drive-on-Chip Designs 7.11.2. Avalon Memory-Mapped Interface 7.11.3. About DSP Builder for Intel FPGAs 7.11.4. DSP Builder for Intel FPGAs Folding 7.11.5. DSP Builder for Intel FPGAs Model Resource Usage 7.11.6. DSP Builder for Intel FPGAs Design Guidelines 7.11.7. Generating VHDL for the DSP Builder Models for the Drive-on-Chip Designs
8. Achieving Timing Closure on a Motor Control Design x
8.1. Optimizing Motor Control Designs
1. About the Drive-On-Chip Design Example for Intel® MAX® 10 Devices
2. Features of the Drive-on-Chip Design Example for Intel® MAX® 10 Devices
3. Getting Started with the Drive-On-Chip Design Example for Intel® MAX® 10 Devices
4. Rebuilding the Drive-On-Chip Design Example for Intel® MAX® 10 Devices
5. About the Scaling of Feedback Signals
6. Motor Control Software
7. Functional Description of the Drive-on-Chip Design Example
8. Achieving Timing Closure on a Motor Control Design
9. Design Security Recommendations
10. Reference Documents for the Drive-on-Chip Design Example
11. Document Revision History for AN 773: Drive-on-Chip Design Example for Intel® MAX® 10 Devices

5.3. Scale Factors for the Drive-on-Chip Design Example in the System Console Toolkit

The design applies scale factors to signals in the system console toolkit for diagnostic display in human readable, physical units (e.g. volts, amps).
Table 8.  Scale Factors in System ConsoleThis table shows the scale factors that the GUI uses, based on the scaling of the motor phase currents as in Scaling of Motor Phase Current Samples.
Item Sigma Delta Scaling MAX 10 Scaling
Motor Phase Voltages 545 counts/A 67.7 counts/V
DC Bus Voltage 545 counts/V 67.7 counts/V
Input Voltage 895 counts/V 223 counts/V
Input Current 252 counts/A N/A
Inductor Current 717 counts/A 57.3 counts/A
DC Bus Current 1638 counts/A N/A
Motor Phase Currents 1.024 counts/mA 1.024 counts/mA
Table 9.  Scale Factors for Id and Iq in System ConsoleThe table shows that scaling of Id (requested and actual) and Iq (requested and actual) in the GUI is the same as the motor phase current scaling
Item Sigma Delta Scaling (counts/mA) MAX 10 Scaling (counts/mA)
Id Direct Current 1.024 1.024
Iq Quadrature Current 1.024 1.024

SVM Voltage

The design calculates the maximum count of the PWM from the PWM clock frequency, and passes it to the software from the system.h header file generated with the Nios II BSP . The maximum count varies with the PWM clock frequency and sample rate and is (PWM frequency in Hz)/( (Sample rate) *1000). For example, with a PWM clock frequency of 300 MHz and a sample rate of 16 kHz the maximum count is 18,750.

Voltage demand signals for the PWM IP have a full-scale value equal to the maximum count, so setting the voltage demand to the maximum count value achieves 100% duty cycle and 100% of DC link voltage. Setting the voltage demand to 0 achieves 0% duty cycle and 0% of the DC link voltage. By convention, voltages for display purposes are centred around 0. For example, if the DC link voltage is 48 V voltage demand signals between 0 and maximum count map to 0 to +48 V outputs, but these signals are offset and show in System Console as -24 V to +24 V.

Using the above example of 300 MHz PWM and 16 kHz sample rate for the Tandem Motion-Power 48 V Board, in System Console :

Offset 18,750/2 = 9,375

Scaling 9,375/24 = 391

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