LF-81AGG-EVN Lattice

iCE40 UltraPlus 8:1 Mic Aggregation Demo User Guide FPGA-UG-02035-1.2 February 2018 iCE40 UltraPlus 8:1 Mic Aggregation Demo User Guide Contents 1. Introduction .................................................................................................................................................................. 3 1.1. Demo Design Overview ....................................................................................................................................... 3 2. Functional Description .................................................................................................................................................. 4 3. Demo Package .............................................................................................................................................................. 5 4. iCE40 UltraPlus MDP and Resources ............................................................................................................................ 6 4.1. Configuring the iCE40 UltraPlus MDP ................................................................................................................. 7 5. Programming the Bitstreams to the iCE40 UltraPlus MDP ........................................................................................... 8 6. Running the Demo ...................................................................................................................................................... 10 6.1. Using Headphones ............................................................................................................................................ 10 6.2. Oscilloscope Connection Points ........................................................................................................................ 11 2 6.3. I S Aggregation Signal Format ........................................................................................................................... 12 2 6.4. Measured Oscilloscope I S Aggregation Signals ................................................................................................ 13 Appendix A. Schematic Diagram ......................................................................................................................................... 14 Appendix B. Bill of Materials ............................................................................................................................................... 15 Technical Support Assistance ............................................................................................................................................. 16 Revision History .................................................................................................................................................................. 16 Figures Figure 1.1. 8:1 Mic Aggregation Demo Overview ................................................................................................................. 3 Figure 2.1. 8:1 Mic Aggregation Demo Block Diagram ......................................................................................................... 4 Figure 3.1. Directory Structure ............................................................................................................................................. 5 Figure 4.1. iCE40 UltraPlus MDP Configuration .................................................................................................................... 6 Figure 4.2. iCE40 UltraPlus MDP and 8 to 1 Mic Aggregator Board...................................................................................... 7 Figure 5.1. Device Properties ................................................................................................................................................ 8 Figure 5.2. Program Device Button ....................................................................................................................................... 9 Figure 6.1. Mode Push Button Control Sequences Selected Microphone .......................................................................... 10 Figure 6.2. 8 to 1 Mic Aggregator Board (Daughter Board) ................................................................................................ 10 Figure 6.3. J30 Section on MDP Board ................................................................................................................................ 11 Figure 6.4. Header to Connect to the Oscilloscope ............................................................................................................ 11 Figure 6.5. Aggregation TDM Format for 8 Channels ......................................................................................................... 12 2 Figure 6.6. I S Aggregation for Channel 1 ........................................................................................................................... 12 2 Figure 6.7. I S Aggregation for Channel 8 ........................................................................................................................... 12 2 Figure 6.8. Measured I S Aggregation Signals for 8 Channels ............................................................................................ 13 2 Figure 6.9. Measured I S Aggregation Signals for Channel 1 .............................................................................................. 13 2018 Lattice Semiconductor Corp. All Lattice trademarks, registered trademarks, patents, and disclaimers are as listed at www.latticesemi.com/legal. All other brand or product names are trademarks or registered trademarks of their respective holders. The specifications and information herein are subject to change without notice. 2 FPGA-UG-02035-1.2