Speech Playback PICtail™ Plus Daughter Board Overview The Speech Playback PICtail™ Plus Daughter Board is a demonstration board for evaluating speech playback algorithms that operate on Microchip’s PIC® microcontrollers or dsPIC® Digital Signal Controllers. It is an expansion board that is compatible with many of the PIC16 and PIC18 development boards employing a PICtail connector and with the Explorer 16 Development Board using the PICtail Plus connector. Features - 3V or 5V operation Potentiometer for volume control 4th order Low Pass Filter Mono output via on-board speaker or stereo output via headphone connector Shutdown control of power amplifier On-board 256 Kbit SPI Serial EEPROM for voice storage Getting Started To get started, an HPC Explorer Board with a PIC18F87J10 or PIC18F8722 microcontroller, or an Explorer 16 Development Board with a PIC24F microcontroller is needed. The headers on the Speech Playback PICtail Plus Daughter Board allow insertion in the development boards in only one orientation. Projects for both PIC18 and PIC24F devices can be downloaded from the Microchip web site (www.microchip.com). The demonstration software implements a talking thermometer using the TC74 temperature sensor on the HPC Explorer Board or the TC1047A temperature sensor on the Explorer 16 Development Board. See Figure 1 on the back of this page to view the Speech Playback PICtail Plus Daughter Board schematic. Signals and Connections The following signals are used to control the Speech Playback PICtail Plus Daughter Board. Pins are noted for both PIC18 and PIC24F devices. Function I/O PIC18 Pin PIC24F Pin Description PWM I RC2/CCP1 RD0/OC1 PWM Voice Input PA Enable I RA4 RD8 Power Amplifier Enable Input CS I RE0 RB2 SPI Chip Select Input SCK I RC3/SCK RF6/SCK1 SPI Clock Input SO O RC4/SDI RF7/SDI1 SPI Data Out from EEPROM SI I RC5/SDO RF8/SDO1 SPI Data In to EEPROM Americas Atlanta - 678-957-9614 Boston - 774-760-0087 Chicago - 630-285-0071 Dallas - 972-818-7423 Detroit - 248-538-2250 Kokomo - 765-864-8360 Los Angeles - 949-462-9523 Phoenix - 480-792-7200 Santa Clara - 408-961-6444 Toronto - 905-673-0699 Asia/Pacific Australia - Sydney - 61-2-9868-6733 China - Beijing - 86-10-8528-2100 China - Chengdu - 86-28-8665-5511 China - Fuzhou - 86-591-8750-3506 China - Hong Kong - 852-2401-1200 China - Qingdao - 86-532-8502-7355 China - Shanghai - 86-21-5407-5533 China - Shenyang - 86-24-2334-2829 China - Shenzhen - 86-755-8203-2660 China - Shunde - 86-757-2839-5507 China - Wuhan - 86-27-5980-5300 China - Xian - 86-29-8833-7250 India - Bangalore - 91-80-4182-8400 India - New Delhi - 91-11-4160-8631 India - Pune - 91-20-2566-1512 Japan - Yokohama - 81-45-471-6166 Korea - Gumi - 82-54-473-4301 Korea - Seoul - 82-2-554-7200 Malaysia - Penang - 60-4-646-8870 Philippines - Manila - 63-2-634-9065 Singapore - 65-6334-8870 Taiwan - Hsin Chu - 886-3-572-9526 Taiwan - Kaohsiung - 886-7-536-4818 Taiwan - Taipei - 886-2-2500-6610 Thailand - Bangkok - 66-2-694-1351 Europe Austria - Weis - 43-7242-2244-39 Denmark - Copenhagen - 45-4450-2828 France - Paris - 33-1-69-53-63-20 Germany - Munich - 49-89-627-144-0 Italy - Milan - 39-0331-742611 Netherlands - Drunen - 31-416-690399 Spain - Madrid - 34-91-708-08-90 UK - Wokingham - 44-118-921-5869 12/08/06 *DS51610A* www.microchip.com 2355 West Chandler Boulevard • Chandler, Arizona 85224-6199 • (480) 792-7200 • Fax (480) 792-7277 Information subject to change. The Microchip name and logo, the Microchip logo, dsPIC and PIC are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. PICtail is a trademark of Microchip Technology Incorporated in the U.S.A. and other countries. All other trademarks mentioned herein are property of their respective companies. © 2007 Microchip Technology Inc. All rights reserved. Printed in the U.S.A. 01/07 DS51644A Figure 1: Speech Playback PICtail™ Plus Daughter Board Schematic J2 J5 .15in RE2 RA5 MC L R RE3 RA4 40 - 44 pins ANALOG ANALOG +3.3V +3.3V CAN TX CAN 1 CAN RX USART2 SPI2 I2C 2 ANALOG ANALOG 8 - 14 - 18 - 20 - 28 pins RA7 RA3 RC5 RA6 RC7 RC4 RC6 RC3 RB7 RA0 RB6 RA1 RB5 RA2 RB4 RC0 RB3 RC1 RB2 RC2 RB1 +5V RD1 RD0 RD3 RD2 RD5 RD4 RD7 RD6 RE1 CW I2C 1 MCP6022 CCW SPI1 PICtail USART1 RE0 J10 +3.3V +3.3V TBD CAN 2 DCI DCI U2 J3 +3.3V +3.3V U1 Board Edge Connector