Lattice iCE40 UltraPlus 8:1 Mic Aggregation Demo, User Manual

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iCE40 UltraPlus 8:1 Mic Aggregation Demo
User Guide
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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
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
6.3. I
2
S Aggregation Signal Format ........................................................................................................................... 12
6.4. Measured Oscilloscope I
2
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
Figure 6.6. I
2
S Aggregation for Channel 1 ........................................................................................................................... 12
Figure 6.7. I
2
S Aggregation for Channel 8 ........................................................................................................................... 12
Figure 6.8. Measured I
2
S Aggregation Signals for 8 Channels ............................................................................................ 13
Figure 6.9. Measured I
2
S Aggregation Signals for Channel 1 .............................................................................................. 13
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