Lattice iCE40 UltraPlus 8:1 Mic Aggregation Demo User Manual Download Page 1 | Manualshive

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iCE40 UltraPlus 8:1 Mic Aggregation Demo

User Guide

FPGA-UG-02035-1.2

February 2018

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Summary of Contents for iCE40 UltraPlus 8:1 Mic Aggregation Demo

Page 1: ...iCE40 UltraPlus 8 1 Mic Aggregation Demo User Guide FPGA UG 02035 1 2 February 2018 Downloaded from Arrow com...

Page 2: ...egation 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...

Page 3: ...een integrated circuits in an electronic device The standard I S protocol is designed to transfer only two channels on a data line LEFT and RIGHT 1 1 Demo Design Overview The iCE40 UltraPlus 8 1 Mic A...

Page 4: ...o to the headset jack the I2 S 8 ch aggregation format is sent to an I2 S Decoder block This in turn selects either the average of all eight PCM channels or one of the 8 channels to convert into stand...

Page 5: ...wing hardware and software are required to run the iCE40 8 1 Mic Aggregation demo Hardware iCE40 UltraPlus MDP PN iCE40UP5K MDP EVN 8 to 1 Mic Aggregator Board Daughter Board PN LF 81AGG EVN Standard...

Page 6: ...demarks of their respective holders The specifications and information herein are subject to change without notice 6 FPGA UG 02035 1 2 4 iCE40 UltraPlus MDP and Resources Figure 4 1 shows the top side...

Page 7: ...s FPGA B To configure the board 1 Install 0 0603 resistor or wire short at R30 if not installed 2 Shunt J17 J26 and J27 pins 9 10 3 Shunt J25 pins 1 2 and pins 5 6 4 Shunt J28 pins 1 2 5 Shunt J23 pin...

Page 8: ...OK 5 The iCE40 UltraPlus device is detected and displayed in the main interface Device Family iCE40 UltraPlus Device iCE40UP5K Right click on the device and select Device Properties in the context me...

Page 9: ...their respective holders The specifications and information herein are subject to change without notice FPGA UG 02035 1 2 9 8 Click the Program button on the main interface to download the bitstream...

Page 10: ...phones sound is heard over the headphones To sequence through each individual microphone push and release the MODE button on the 8 to 1 Mic Aggregator Board MIC8 MODE is pressed MODE is pressed MODE i...

Page 11: ...2 Oscilloscope Connection Points Users can use an oscilloscope to observe the I2 S 8 channel aggregation signals and the I2 S 2 channel standard signals The signals are available at FPGA B header J30...

Page 12: ...ltiplexing TDM format for eight channels The vertical lines indicate the first most significant bit MSB of each microphone channel Figure 6 5 Aggregation TDM Format for 8 Channels Figure 6 6 shows the...

Page 13: ...ignals Figure 6 8 shows the measured I2 S aggregation signals for the eight channels BLUE WS YELLOW SCK GREEN DATA Figure 6 8 Measured I2 S Aggregation Signals for 8 Channels Figure 6 9 shows the meas...

Page 14: ...d information herein are subject to change without notice 14 Appendix A Schematic Diagram 8 to 1 Mic Aggregator Card Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downl...

Page 15: ...2x5 0 1 Pitch Sullins NPTC052KFMS RC 7 MIC1 MIC2 MIC3 MIC4 MIC5 MIC6 MIC7 MIC8 8 Microphone PDM Omnidirectional 26DB RHLGA 3x4x1 mm 4LD STMicro electronics MP34DB02TR 8 R1 R2 R3 R4 R5 5 Resistor 0 0...

Page 16: ...in various sections to Lattice Radiant Software Version 1 0 or to Lattice Radiant Programmer Updated Device Properties image Figure 5 1 and description Added Figure 5 2 Program Device Button Removed...

Page 17: ...Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Ar...

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