Kabuki 2800 Critical Design Review 19 October 2006

Agenda 1.System Block Diagram 2.Software Processes 3.System Specifications and Design 4.Test Results and Demo 5.Detailed Schedule 6.Division of Labor

DSK Starter Kit  48KHz A/D  48KHz D/A  DSP processing core Router Board  Routs signals between DSP host and all peripherals  FPGA and PROM  USB  RS-232 Performance Board  A/D  Reads input from o 1 foot fader pedal o 5 actuators  Communicates with Router Card via RS-232 DSP Co-Processor o FFT / IFFT o Communicates with DSK via HPI or Router Card USB display o Tablet or Laptop o Communicates with Router Card Foot PedalActuator 1 Actuator 2 Actuator 3 Actuator 4 Actuator 5 Audio In  Analog Audio Out  Analog Kabuki 2800 Block Diagram

Router: Protocol “Kabuki Router Advanced Addressing Protocol” Common command and data protocol for all devices 24-bit KRAAP packets –3 bit dest. Module –5 bit command code –16 bits of data

R uter: Logic

Router: Logic example USB asking UART command handler for input board state information

Software: DSP Effects processing magic Runs on TI DSK Written entirely in C Currently ~3k lines of code Subversion version control

Software: DSP Gets preset info from router Gets inputs from input board or software console Sends data to software console for spectral analysis Sends data to possible DSP coprocessor

Software: DSP Toplevel architecture

Software: DSP Possible effect: Single

Software: DSP Possible effect: Mixer

Software: DSP Possible effect: Complex

Software: Console Connects to router via USB Written entirely in Python Uses Gtk+ Linux GUI toolkit ‘Subversion’ version control Nanobunnies

Software: Console

Router Function: Handles I/O from one module to the next Brain: –FPGA with FLASH prom/memory Ports: –EMIF, RS-232, USB, JTAG

Router Board Buko the monkey RS-232 MAX3237 USB DLP-245 FPGA Cyclone II EMIF LEDs 74xx TXRX 3.3V 1.2V JTAG FLASH PROM CLK Buttons PERIPH. HPI

Transceiver Logic (USB)

Max RS 3232 Assembled Prototyped Capacitors Lag time Functionality

Prototype Board DB9 Connector RS3232

Performance Module Specifications Read fader pedal from bits Read foot actuator inputs Boot from flash prom Communicate with Router Board via RS- 232 Transceiver at 1MHz Debugging LEDs and Switches

Performance Block Diagram Spartan 3E A/D Converter Foot Pedal Actuators RS-232 Transceiver Flash PROM Switches / LEDs

Performance Module A/D Spartan3E FPGA Actuator Inputs Fader Pedal JTAG Switches LEDs VREG VccAux VREG VccInt VREG Vcc Xilinx PROM RS232 Transceiver Reset

Performance Module Design Xilinx Spartan 3E FPGA to handle communication with the A/D and Router Card. Xilinx PROM to program Spartan 3E Maxim 3237 RS-232 Megabaud Transceiver Clock Source: Crystal Oscillator ( MHz)

Performance Module Input 5 Foot Actuators (Connected directly into Spartan) 1 Fader Foot Pedal 3.3 volt signal attenuated through the pedal AD7859 (ADC with 12-bit resolution) High speed PLCC 44 package: replaceable 8 LEDs, 8 Switches, 1 Reset Button

Performance Module Power Vcc = 3.3 V LDO Regulator LT1086, stepped down from 5 V JTAG, VccAux = 2.5 V LDO Regulator LT1763, stepped down from 3.3 V Regulator VccInt = 1.2 V LDO Regulator LT3021, stepped down from 3.3 V Regulator

DSP Co-processor Design 200pin HLQFP Not BGA!!! Connection through Host Peripheral Interface on DSK 192K internal SRAM Maybe enough! Clock Source: same as DSK, 50MHz Crystal Oscillator. HPI TMS B-200

DSP C -processor Specifications Communication via 225MHz Direct Connection to DSK Host Transfer 256 samples and FFT / IFFT in <1us

Development Structure Kabuki 2800 Primary Secondary

Dan’s Tasks Primary Software Effects Software Devices Software simulation Secondary Layout design and fabrication. Firmware Kabuki 2800

Justin’s Tasks Primary Router Board Layout Design and Fab. Firmware USB design and Protocols Secondary Does No have any. Kabuki 2800

Tim’s Tasks Primary Performance board firmware layout and design Kabuki 2800 Secondary USB Design and Protocols Device Casing

Yazan Task’s Primary Device Casing and Fabrication DSK and interface Card Kabuki 2800 Secondary Module hardware design Module Firmware design Audio effect algorithm simulation Audio effect algorithm Final packaging and Software

Phase 1 – Milestone 1, Nov. 2 Phase 2 – Milestone 2, Nov. 30 Phase 3 – Expo, Dec. 14 Schedule

Phases Phase 1 – Development & Prototyping Phase 2 – Integration Phase 3 – Testing and Production

Board Fabricated (Done) FPGA configured (Done) FPGA boots from PROM (Done) FLASH reads/writes properly DSK I/O Firmware Complete USB tested RS-232 interface tested Router Board Router Board Phase 1

FPGA configured and tested Router Board Router Board Phase 2

All interfaces fully functional (RS-232, USB) Flash storage able to load / store presets I/O functions with DSK and DSP co- processor USB firmware interfaces with FPGA and with host computer RS-232 interface fully functioning Firmware completed and under testing Communication established with DSP coprocessor. Router Board Router Board Phase 3

PCB Fabricated (In Progress) FPGA configured and tested FPGA boots from EEPROM A/D converter tested Firmware in testing Performance Board Performance Board Phase 1

FPGA interfaces with I/O board Foot – pedals generate interrupts A/D converter samples fader pedal Performance Board Performance Board Phase 2

FPGA interfaces with Interface Card All user inputs are fully functional Performance Board Performance Board Phase 3

Board Layout Complete DSP Coprocessor DSP Coprocessor Phase 1

Board fabricated, populated and ready for testing JTAG ready DSP Coprocessor DSP Coprocessor Phase 2

DSP Processor is able to implement FFT and Wavelet Transforms DSP is able to communicate with I/O board and and co-process transforms DSP Coprocessor DSP Coprocessor Phase 3

Effect Algorithms Effect Algorithms Phase 1 Some Time Domain Effects Simulated –Phasing –Filters –Etc.

Most time domain effects simulated Several more time domain effects implemented FFTs simulated in Matlab Effect Algorithms Effect Algorithms Phase 2

Time Domain effects implemented FFT and Wavelet Domain effects simulated and implemented Effect Algorithms Effect Algorithms Phase 3

Kabuki 2800 Budget ModuleItemCostQtyShipping Total Main box I/O boardAltera Cyclone or Xilinx Spartan III FPGA$602$10$130 Main box I/O board4-layer PCB fabrication$603$10$190 Main box I/O boardUSB 2.0 transceiver DSK mezzanine board$1001$10$110 Main box coprocessor boardTI DSP$402$10$90 Main box coprocessor board4-layer PCB fabrication$603$10$190 Performance Card4-layer PCB fabrication$662$10$142 Performance CardXilinx FPGA and PROM$302$10$70 Human input box controlsFoot actuators$305$150 Human input box controlsFoot pedals$1001 Box CasingCasing materials + fabrication$1601 Testing & prototypingMisc audio connectors and converters (1/8", 1/4", XLR)$401 Misc Misc electrical components (surface-mount components, LEDs, A/D converter)$2001 Sum Total$1,702

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