AN 1000: Drive-on-Chip Design Example: Agilex™ 5 Devices
ID
826207
Date
7/08/2024
Public
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
3.1. 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
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
8.3.6.4. DSP Builder for Intel FPGAs Folding
DSP Builder for Intel FPGAs generates flat parallel models that can receive and process new input data on every clock pulse. However, designs that have a much lower sample rate than the FPGA clock rate, such as this FOC design (16 kHz versus 100 MHz), can use the DSP Builder for Intel FPGAs folding feature to trade off an increase in algorithm latency for a decrease in the FPGA resources. This feature allows the design to use as much hardware parallelism as necessary to reach the target latency with the most cost-effective use of FPGA resources without making any changes to the algorithm.
The DSP Builder for Intel FPGAs folding feature reuses physical resources such as multipliers and adders for different calculations with the VHDL generation automatically handling the complexity of building the time division multiplexed (TDM) hardware.
Figure 38. Unfolded and Folded Hardware Examples