AN 1000: Drive-on-Chip Design Example: Agilex™ 5 Devices

Download PDF
ID 826207
Date 7/08/2024
Public
Document Table of Contents
Document Table of Contents x
1. About the Drive-on-Chip Design Example for Agilex™ 5 Devices 2. Features of the Drive-on-Chip Design Example for Agilex Devices 3. Getting Started with the Drive-on-Chip Design Example 4. Rebuilding the Drive-on-Chip Design Example 5. Modifying the Design Example for a Different Board 6. About the Scaling of Feedback Signals 7. Motor Control Software 8. Functional Description of the Drive-on-Chip Design Example for Agilex 5 Devices 9. Signals 10. Registers 11. Design Security Recommendations 12. Document Revision History for AN 1000: Drive-on-Chip Design Example for Agilex™ 5 Devices
3. Getting Started with the Drive-on-Chip Design Example x
3.1. Software Requirements for the Drive-on-Chip Design Example for Agilex 5 Devices 3.2. Hardware Requirements for the Drive-on-Chip Design Example for Agilex 5 Devices 3.3. Downloading and Installing the Design 3.4. Setting Up your Development Board for the Drive-on-Chip Design Example for Agilex 5 Devices 3.5. Configuring the FPGA Hardware for the Drive-on-Chip Design Example for Agilex 5 Devices 3.6. Programming the Nios V/g Software to the Device for the Drive-on-Chip Design Example for Agilex Devices 3.7. Debugging and Monitoring the Drive-on-Chip Design Example for Agilex 5 Devices with Python GUI
3.7. Debugging and Monitoring the Drive-on-Chip Design Example for Agilex 5 Devices with Python GUI x
3.7.1. GUI Control Parameters Pane for the Drive-on-Chip Design Example for Agilex Devices 3.7.2. GUI Main Panes for the Drive-on-Chip Design Example for Agilex Devices 3.7.3. Tuning the PI Controller Gains 3.7.4. Controlling the Speed and Position Demonstrations 3.7.5. Monitoring Performance
4. Rebuilding the Drive-on-Chip Design Example x
4.1. Generating the Platform Designer System 4.2. Compiling the Hardware in the Intel Quartus Prime Software 4.3. Generating and Building the NiosV/g BSP for the Drive-On-Chip Design Example 4.4. Software Application Configuration Files
4.4. Software Application Configuration Files x
4.4.1. Defining a New Motor or Encoder Type 4.4.2. Real Time Operating System Specific Configuration Files
6. About the Scaling of Feedback Signals x
6.1. Signal Sensing in Sigma-Delta 6.2. Signal Scaling in the Software of the Drive-on-Chip Design Example 6.3. Scale Factors for the Drive-on-Chip Design Example in the GUI
8. Functional Description of the Drive-on-Chip Design Example for Agilex 5 Devices x
8.1. NiosV/g Processor Subsystem 8.2. Control Subsystem 8.3. Drive Subsystem 8.4. Motor and Power Board Model
8.3. Drive Subsystem x
8.3.1. Six-channel PWM Interface 8.3.2. Drive System Monitor 8.3.3. Quadrature Encoder Interface 8.3.4. Sigma-Delta ADC Interface for Drive Axes 8.3.5. Motor Control Modes 8.3.6. FOC Subsystem
8.3.2. Drive System Monitor x
8.3.2.1. Drive System Monitor States for the Drive-on-Chip Design Example
8.3.4. Sigma-Delta ADC Interface for Drive Axes x
8.3.4.1. Offset Adjustment for Sigma-Delta ADC Interface
8.3.6. FOC Subsystem x
8.3.6.1. DSP Builder Model for the Drive-on-Chip Designs 8.3.6.2. Avalon Memory-Mapped Interface 8.3.6.3. About DSP Builder for Intel FPGAs 8.3.6.4. DSP Builder for Intel FPGAs Folding 8.3.6.5. DSP Builder for Intel FPGAs Design Guidelines 8.3.6.6. Generating VHDL for the DSP Builder Models for the Drive-on-Chip Designs
1. About the Drive-on-Chip Design Example for Agilex™ 5 Devices
2. Features of the Drive-on-Chip Design Example for Agilex Devices
3. Getting Started with the Drive-on-Chip Design Example
4. Rebuilding the Drive-on-Chip Design Example
5. Modifying the Design Example for a Different Board
6. About the Scaling of Feedback Signals
7. Motor Control Software
8. Functional Description of the Drive-on-Chip Design Example for Agilex 5 Devices
9. Signals
10. Registers
11. Design Security Recommendations
12. Document Revision History for AN 1000: Drive-on-Chip Design Example for Agilex™ 5 Devices

6.1. Signal Sensing in Sigma-Delta

Sigma-delta modulators on the power board model convert analog signals to a one-wire digital bitstream. The design demodulates or filters the bitstream in the FPGA. The FPGA uses two types of sigma-delta filter IP in the FPGA, ADC modules and DC link modules, each with different scaling and offset.

The design downloads and filters all sigma delta inputs in parallel so no skew exists between the samples that it feeds to the software application.

Each ADC type has a different input and output ranges with the corresponding 'C' data type.

Table 3.  ADC Output Data
ADC Type Count Range C Data type
Sigma-delta ADC -32768…+32767 Signed 16-bit
Sigma-delta DC link 0…+32767 Signed 16-bit

Position feedback samples are scaled to a 23 bit unsigned integer, for consistency across all encoder types supported by this and previous Drive-on-Chip designs.

Table 4.  ADC ScalingThis table shows the ADC scaling for all signals, ADC type and board revision. The scaling depends on the way the power board processes the signals (e.g., value of current shunts, scaling, and offset in sense amplifiers).
Feedback Quantity Sigma Delta Interface IP Sigma Delta Scaling for Tandem Motion Power Board
Motor phase voltages ADC interface 545 counts/V
Motor input voltage DC Link interface 545 counts/V
Motor phase currents ADC interface 1024 counts/A
Level Two Title