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AMBE-20X0™-HDK Development Board  

User’s Manual 

(Preliminary)

 

Information – Section 

AMBE-20x0™-HDK Development Board END USER License Agreement 

 

*** Important Read Carefully *** 

This  end  user  license  agreement  is  a  legal  agreement  between  the  customer  (the  END  USER)  and  Digital  Voice  Systems,  Inc. 
(DVSI)  covering  the  terms  and  conditions  under  which  DVSI's  proprietary software, documentation and other material which may 
be provided with the AMBE-20x0™-HDK Development Board is licensed to the END USER. 

1.0 Preliminary Statements and Definitions 
1.1 “END USER” shall mean the person and/or organization to whom the AMBE-
2000™  Vocoder  Chip  and/or  AMBE-20x0™-HDK  Development  Board  was 
delivered  or  provided  to  as  specified  in  the  purchase  order  or  other 
documentation.    In the event that the END USER transfers his rights under this 
license  to  a  third  party  as  specified  in  section  2.2,  then  this  third  party  shall 
become an “END USER”. 
1.2 Digital Voice Systems, Inc. (DVSI) has developed a voice coding method and 
algorithm  (the  “Technology”)  based  on  the  Advanced  Multi-Band  Excitation 
(“AMBE

”) voice coder.  The technology codes speech at bit rates of 2.4 to 9.6 

kilobits per second (kbps) including error correction bits. 
1.3  "AMBE

  Voice  Compression  Software"  shall  mean  the  speech  coding 

software  and/or  firmware  integrated  into  the  AMBE-2000™  Vocoder  chip 
integrated circuit. 
1.4 "Voice Codec" shall mean the AMBE-2000™ Vocoder Chip integrated circuit, 
the  AMBE

  Voice  Compression  Software,  firmware  and  associated 

documentation, including modifications, enhancements and extensions made by 
or  for  Digital  Voice  Systems,  Inc.  (DVSI)  and  including  circuit  diagrams,  timing 
diagrams, logic diagrams, layouts, operating instructions and user manuals. 
1.5  DVSI  represents  that  it  owns  certain  “Proprietary  Rights”  in the Technology 
and  the  AMBE

  Voice  Compression  Software,  including  patent  rights  in  the 

Technology,  and  patent  rights,  copyrights,  and  trade  secrets  in  the  AMBE

 

Voice Compression Software. 
 
2.0 License Granted 
 
2.1  Subject  to  the  conditions  herein  and  upon  initial  use  of  the  AMBE-2000™ 
Vocoder  Chip  and/or  AMBE-20x0™-HDK  Development  Board,  DVSI  hereby 
grants  to  END  USER  a  non-exclusive,  limited  license  to  use  the  AMBE®  Voice 
Compression  Software  in  machine  readable  form  solely  on  the  AMBE-2000™ 
Vocoder  Chip.    Title  to  the  AMBE®  Voice  Compression  Software  remains  with 
DVSI.  No license is granted for use of the AMBE® Voice Compression Software 
on  other  than  the  AMBE-2000™  Vocoder  Chip.    No  license,  right  or  interest  in 
any  trademark,  trade  name  or  service  mark  of  DVSI  is  granted  under  this 
Agreement. 
2.2  END  USER  shall  not  copy,  extract,  de-compile,  reverse  engineer  or 
disassemble  the  AMBE®  Voice  Compression  Software  contained  in  the  AMBE-
2000™ Vocoder Chip. 
 
3.0 Transfer of License 
 
3.1  The  END  USER  shall  have  the  right  to  transfer  the  AMBE-2000™  Vocoder 
Chip  and/or  AMBE-20x0™-HDK  Development  Board  and  all  rights  under  this 
Agreement  to  a  third  party  by  either  (i)  providing  the  third  party  with  a  copy  of 
this  Agreement  or (ii) providing the third party with an agreement written by the 
END  USER  (  hereinafter  “END  USER  Agreement”)  so  long  as  the  END  USER 
Agreement is approved in writing by DVSI prior to transfer of the AMBE-2000™ 
Vocoder Chip and/or AMBE-20x0™-HDK Development Board.  The END USER 
Agreement  shall  contain  comparable  provisions  to  those  contained  herein  for 
protecting the Proprietary Information from disclosure by such third party.  Third 
parties shall agree to accept all the terms and conditions under either Agreement 
or the END USER Agreement. 
 
4.0 Term and Termination 
4.1 This Agreement is effective upon initial delivery of the Voice Codec and shall 
remain in effect until terminated in accordance with this agreement. 
4.2  This  Agreement  shall  terminate  automatically  without  notice  from  DVSI  if 
END USER fails to comply with any of the material terms and conditions herein.  
END  USER  may  terminate  this  Agreement  at  any  time  upon  written  notice  to 
DVSI certifying that END USER has complied with the provisions of Section 3.3. 
4.3  Upon  termination  of  this  Agreement  for  any  reason,  END  USER  shall:    (i) 
return all AMBE-2000™ Vocoder Chips and/or AMBE-20x0™-HDK Development 
Boards purchased or acquired, or in Licensee’s possession, to DVSI; (ii) have no 
further  rights  to  any  AMBE®  Voice  Compression  Software  or  the  Technology 
without  a  separate  written  license  from  DVSI;  (iii)  discontinue  all  use  of  the 
AMBE-2000™ Vocoder Chips and/or AMBE-20x0™-HDK Development Boards; 
 
5.0 Payments 
5.1  In  consideration  of  the  materials  of  the  AMBE-20x0™-HDK  Development 
Board,  and  in  consideration  of  the  license  and  rights  in  the  AMBE

  Voice 

Compression  Software  granted  by  DVSI,  and  in  consideration  of  DVSI's 
performance of its obligations hereunder, END USER agrees to pay to DVSI the 
fee specified in DVSI's invoice. 
 
6.0 Proprietary Notices 
 
6.1  END  USER  shall  not  remove  any  copyright  or  proprietary  notice  on  the 
AMBE-2000™  Vocoder  Chip  or  on  the  AMBE

  Voice  Compression  Software 

and/or AMBE-20x0™-HDK Development Board. 
 

 

7.0 Proprietary Information 
 
7.1  The  parties  agree  that  the  AMBE

  Voice  Compression  Software  and/or  AMBE-

20x0™-HDK Development Board shall be considered Proprietary Information. 
7.2 Except as otherwise provided in this Agreement, END USER shall not use, disclose, 
make,  or  have  made  any  copies  of  the  Proprietary  Information,  in  whole  or  in  part, 
without the prior written consent of DVSI. 
 
8.0 Limited Warranty 
 
8.1 DVSI warrants the  AMBE-20x0™-HDK Development Board to be free from defects 
in  materials  and  workmanship  under  normal  use  for  a  period  of  ninety  (90)  days  from 
the date of delivery. 
8.2  Except  as  stated  in  Section  7.1,  the  AMBE-20x0™-HDK  Development  Board  is 
provided  "as  is"  without  warranty  of  any  kind.    DVSI  does  not  warrant,  guarantee  or 
make  any  representations  regarding  the  use,  or  the  results  of  the  use,  of  the  Voice 
Codec  with  respect  to  its  correctness,  accuracy,  reliability,  correctness  or  otherwise.  
The  entire  risk  as  to  the  results  and  performance  of  the  Voice  Codec  and/or  AMBE-
20x0™-HDK Development Board is assumed by the END USER.  After expiration of the 
warranty period, END USER, and not DVSI or its employees, assumes the entire cost of 
any  servicing,  repair,  replacement,  or  correction  of  the  Voice  Codec  and/or  AMBE-
20x0™-HDK Development Board. 
8.3 DVSI represents that, to the best of its knowledge, it has the right to enter into this 
Agreement  and  to  grant  a  license  to  use  the  AMBE

  Voice  Compression  Software 

and/or AMBE-20x0™-HDK Development Board to END USER. 
8.4  Except  as  specifically  set  forth  in  this  Section  7.0,  DVSI  makes  no  express  or 
implied  warranties  including,  without  limitation,  the  warranties  of  merchantability  or 
fitness  for  a  particular  purpose  or  arising  from  a  course  of  dealing,  usage  or  trade 
practice,  with  respect  to  the  Voice  Codec  and/or  AMBE-20x0™-HDK  Development 
Board.    Some  states  do  not  allow  the  exclusion  of  implied  warranties,  so  the  above 
exclusion may not apply to END USER.  No oral or written information or advice given 
by DVSI or its employees shall create a warranty or in any way increase, the scope of 
this  warranty  and  END  USER  may  not  rely  on  any  such  information  or  advice.    The 
limited warranties under this section 7.0 give END USER specific legal rights, and END 
USER may have other rights that vary from state to state. 
 
9.0 Limitation of Liability 
 
9.1 In no event shall DVSI be liable for any special, incidental, indirect or consequential 
damages  resulting  from  the  use  or  performance  of  the  Voice  Codec  and/or  AMBE-
20x0™-HDK Development Board whether based on an action in contract, tort (including 
negligence)  or  otherwise  (including,  without  limitation,  damages  for  loss  of  business 
profits,  business  interruption,  and  loss  of  business  information),  even  if  DVSI  or  any 
DVSI representative has been advised of the possibility of such damages. 
9.2  Because  some  states  do  not  allow  the  exclusion  or  limitation  of  liability  for 
consequential  or  incidental  damages,  the  above  limitations  may  not  apply  to  END 
USER. 
9.3 DVSI's maximum liability for damages arising under this Agreement shall be limited 
to 20% (twenty percent) of the fees paid by END USER for the particular Voice Codec 
and/or  AMBE-20x0™-HDK  Development  Board  which  caused  the  damages  or  that  is 
the subject matter of, or is directly related to, the cause of action. 
 
10.0 Taxes 
 
10.1  All  payments  required  under  Section  4.0  or  otherwise  under  this  Agreement  are 
exclusive of taxes and END USER agrees to bear and be responsible for the payment 
of all such taxes (except for taxes based upon DVSI's income) including, but not limited 
to, all sales, use, rental receipt, personal property or other taxes which may be levied or 
assessed in connection with this Agreement. 
 
11.0 Export 
 
11.1  United  States  export  laws  and  regulations  prohibit  the  exportation  of  certain 
products  or  technical  data  received  from  DVSI  under  this  Agreement  to  certain 
countries  except  under  a  special  validated  license.    As  of  November  30,  1999  the 
restricted countries are: Libya, Cuba, North Korea, Iraq, Serbia, Taliban in Afghanistan, 
Sudan,  Burma,  Yugoslavia  and  Iran.    The  END  USER  hereby  gives  its  assurance  to 
DVSI  that  it  will  not  knowingly,  unless  prior  authorization  is  obtained  from  the 
appropriate U.S. export authority, export or re-export, directly or indirectly to any of the 
restricted  countries  any  products  or  technical  data  received  from  DVSI  under  this 
Agreement  in  violation  of  said  United  States  Export  Laws  and  Regulations.    DVSI 
neither represents that a license is not required nor that, if required, it will be issued by 
the  U.S.  Department  of  Commerce.    Licensee  shall  assume  complete  and  sole 
responsibility for obtaining any licenses required for export purposes. 
 
12.0 Governing Law 
 
12.1  This  Agreement  is  made  under  and  shall  be  governed  by  and  construed  in 
accordance with the laws of the Commonwealth of Massachusetts, except that body of 
law  governing  conflicts  of  law.    If  any  provision  of  this  Agreement  shall  be  held 
unenforceable  by  a  court  of  competent  jurisdiction,  that  provision  shall  be  enforced  to 
the maximum extent permissible, and the remaining provisions of this Agreement shall 
remain in full force and effect. 
 
 

Содержание AMBE-20X0 HDK

Страница 1: ...AMBE 20x0 HDK Development Board Version 2 3 07 September User s Manual Preliminary Digital Voice Systems Inc The Speech Compression Specialists ...

Страница 2: ...implied warranties of merchantability and fitness for a particular purpose Digital Voice Systems Inc shall not be liable for any errors or for incidental or consequential damages in connection with the furnishing performance or use of this manual or the examples herein The information in this document is subject to change without notice Trademarks AMBE 20x0 HDK Development Board and AMBE 2000 Voco...

Страница 3: ...0x0 HDK Development Board 7 0 Proprietary Information 7 1 The parties agree that the AMBE Voice Compression Software and or AMBE 20x0 HDK Development Board shall be considered Proprietary Information 7 2 Except as otherwise provided in this Agreement END USER shall not use disclose make or have made any copies of the Proprietary Information in whole or in part without the prior written consent of ...

Страница 4: ...etain Instructions The handling and operating instructions should be retained for future reference Follow Instructions All operating and use instructions should be followed Storage To insure maximum shelf life in long term storage AMBE 20x0 HDK Development board should be kept in an a static shield moisture controlled package at 40 C and 90 Relative Humidity Installation Ventilation The AMBE 20x0 ...

Страница 5: ...BE 2000 12 Analog I O 12 HDK BOARD STATUS INDICATOR LEDS 13 Section 3 HDK CONFIGURATION DATA RATE SELECTION 14 OVERVIEW 14 BOARD RESET 14 AMBE 2000 VOCODER SET UP VIA DIP SWITCHES 14 Slide Dip Switch Settings 15 Jumpers 17 HDK RS 232 INTERFACE SET UP VIA KEYPAD 17 Section 4 COMMUNICATION VIA CHANNEL INTERFACE 18 OVERVIEW 18 BASIC OPERATION 18 HDK Format Packet Data Structure 19 Data Structure AMBE...

Страница 6: ...ATURES 1 TABLE 2 AMBE 2000 APPLICATIONS 4 TABLE 3 TOP PANEL CONNECTORS 6 TABLE 4 HANDSET PINOUT 8 TABLE 5 CONSOLE OUT UART SERIAL PORT SETTINGS 10 TABLE 6 MSP430 JTAG HEADER JP8 10 TABLE 7 PLD JTAG PIN OUT 11 TABLE 8 AMBE 2000 TEST POINTS 12 TABLE 9 ANALOG TEST POINTS JP2 12 TABLE 10 ANALOG TEST POINT JP3 12 TABLE 11 ANALOG TEST POINT JP4 12 TABLE 12 BOARD STATUS LED S 13 TABLE 13 DIP SWITCHES 1 A...

Страница 7: ...OARDS TOGETHER 9 FIGURE 6 PHOTO OF JTAG CONNECTIONS 11 FIGURE 7 RESET SWITCH 14 FIGURE 8 VOCODER SETTINGS SWITCHES SW1 AND SW2 15 FIGURE 9 CONNECTING TWO HDK BOARDS TOGETHER USING A NULL MODEM RS 232 CABLE 22 FIGURE 10 RS 232 NULL MODEM CABLE PIN OUT FOR CONNECTING TWO HDK BOARDS TOGETHER 22 FIGURE 11 RS 232 STRAIGHT THROUGH CABLE PIN OUT FOR CONNECTING HDK BOARD AND PC TOGETHER 23 ...

Страница 8: ......

Страница 9: ... compression algorithm The AMBE 2000 Vocoder Chip is capable of speech and FEC data rates from 2 0 Kbps to 9 6 Kbps in 50 bps increments This data rate flexibility makes the AMBE 20x0 HDK a cost efficient design and development tool for high performance low bandwidth voice communication applications AMBE 20x0 HDK Development Board Features Flexible Bit Rate Selection Real Time High Quality Speech ...

Страница 10: ...t development tool from Texas Instruments The HDK incorporates a Xilinx programmable logic device PLD This is used for the serial to parallel conversion between the AMBE 2000 Vocoder Chip and the MSP430 microcontroller The PLD is programmed using a XILINX ISP The AMBE 20x0 HDK is designed to run in a standalone nature The RS 232 interface can looped back so that the input goes through the AD DA pr...

Страница 11: ...Advanced Multi Band Excitation AMBE voice compression technology This technology patented by DVSI has been proven to outperform CELP and other competitive technologies Numerous evaluations have shown its ability to provide performance equal to today s digital cellular systems at less than half the data rate With the AMBE 2000 on board the AMBE 20x0 HDK offers a number of features such as compressi...

Страница 12: ... as the voice coding rate The Voice coding rate as well as the FEC coding rate can be selected individually on the AMBE 2000 HDK These rates are selected by using the dipswitches The board is designed with 32 pre configured voice FEC rates If rates other than these are desired then an embedded channel software command protocol can be used to configure voice and FEC rates in 50 bps increments FEC F...

Страница 13: ... of the decoder output present at the encoder input Only the linear portion of the echo is cancelled so circuits should be designed to minimize non linearity s For more information regarding the Echo canceller refer to the AMBE 2000 User s Manual included on the AMBE 20x0 HDK software CD What s Included with the HDK The AMBE 20x0 HDK is a complete package solution The development kit includes the ...

Страница 14: ... HDK via the RS 232 channel interface demonstrating its capabilities in a full duplex communication system Figure 2 AMBE 20x0 HDK Development Board Top Additionally the board provides test points for extensive circuit probing of hardware instruction sets addresses and data An on board keypad and slide switches provide control of configuration parameters for maximum flexibility of vocoder features ...

Страница 15: ...alog audio input connection for the AMBE 20x0 HDK Development Board would be to connect the audio Line output of an audio component such as a Digital Tape player or even a PC sound card output to the Analog Input jack audio cables not included of the AMBE 20x0 HDK Development Board The AMBE 20x0 HDK Development Board outputs the analog signal on the output RCA jack that may be connected to an ampl...

Страница 16: ...the voice signal The AMBE 20x0 HDK Development Board always outputs the audio to both the 4 Wire and Handset output regardless of which voice source is selected Handset Header JP3 Pin Number Name 1 and 2 Connected internally to Ground 3 Speaker Out 4 Microphone In DC Microphone Bias out Table 4 Handset PinOut RS 232 Connections There are two RS 232 connection on the HDK board see photo The top con...

Страница 17: ...ts over the RS 232 interface Simultaneously the compressed bit stream from the other HDK are read in from the RS 232 interface and decoded back in to digital speech samples The decoded samples are converted back into analog speech via the codec whose output is sent to both the handset and RCA line level output connections U4 HandSet I O J2 HandSet I O J2 U1 AMBE 2000 TM Vocoder Chip U1 AMBE 2000 T...

Страница 18: ...bit and no flow control Serial Port Settings Bits per second 115200 Data bits 8 Parity None Stop bits 1 Flow control None Table 5 Console Out UART Serial Port Settings JTAG Connections The MSP430 JTAG connector is 2x7 pin with 0 1 step that follows the TI recommended JTAG layout The PIN 1 is marked with square pad on bottom MSP430 JTAG has build in target board voltage follower and the JTAG voltag...

Страница 19: ...a are shifted into the device on the TDI pin and are shifted out on the TDO pin All state transitions and activity on the TDI and TDO signals are synchronous to TCK More information on the XC9572Xl JTAG can be found on Xilinx web site www xilinx com Header JP7 Pins Signal 1 GND 2 VCC 3 GND 4 TMS 5 GND 6 TCK 7 GND 8 TDO 9 GND 10 TDI Table 7 PLD JTAG Pin out Test Points Test points allow the user to...

Страница 20: ...X Strobe 5 Channel Clock 6 AMBE output PCM 7 Codec TX RX Strobe 8 BCK 9 AMBE input PCM 10 AMBE Channel Data IN 11 GND 12 GND Table 8 AMBE 2000 Test Points Analog I O JP2 header Pins Signal 1 Analog Out RCA 2 GND Table 9 Analog Test Points JP2 JP3 Header Pins Signal 1 GND 2 GND 3 Analog OUT Handset 4 Analog IN Handset Table 10 Analog Test Point JP3 JP4 Header Pins Signal 1 Analog IN RCA 2 GND Table...

Страница 21: ... current condition of Audio I O vocoder and communications channel to the operator The LCD indicators indicate the status of the board as follows LED ID Description when LED ON D3 Micro controller on D4 AMBE Packet Format HDK Packet format when OFF D9 Channel is Synchronized D10 SM Clock D11 Power Applied D12 Reset goes off when Reset Switch is pressed Table 12 Board Status LED s Power Reset RS 23...

Страница 22: ...switch positions are always read upon board power up or after a the Reset Button is pressed Board Reset Figure 7 Reset Switch AMBE 2000 Vocoder Set up via Dip Switches The hardware DIPswitches and Jumper JP5 allow the user to set one of 32 standard AMBE 2000 Vocoder Chip rates and configure the chips features In order for a new setting to take effect Reset Switch must be pressed or the power to th...

Страница 23: ...on Up Position D1 1 RATE_SEL0 D1 2 RATE_SEL1 D1 3 RATE_SEL2 D1 4 RATE_SEL3 D1 5 See Table Table 14 Standard Rate Table for AMBE 20x0 RATE_SEL4 D1 6 CHAN_SEL0 D2 1 See Table Table 15 Channel Interface Selection Table CHAN_SEL1 D2 2 Active Inactive ECHOCAN_EN D2 3 Inactive Active SOFT_EN D2 4 BAUD_SEL0 D2 5 See Table Table 16 Unframed Bit per Word Selection Table BAUD_SEL1 D2 6 Inactive Active SLIP_...

Страница 24: ...0 Down Up Up Down Down 6400 4150 2250 Up Down Up Down Up 6400 0 Down Down Up Up Down 6400 4000 2400 Up Down Up Down Down 7200 4400 2800 Down Up Up Down Up 7200 4400 2800 Down Down Up Down Down 7750 250 Up Down Up Down Up 8000 4650 3350 Down Down Up Down Up 8000 0 Up Up Down Up Down 8000 4000 4000 Up Up Down Down Down 9600 0 Up Up Down Up Up 9600 4850 4750 Up Down Down Up Up 9600 0 Down Up Down Up ...

Страница 25: ...Pin 1 VAD EN Jumper on Pin 3 VAD Disable Table 17 Jumper Settings HDK RS 232 Interface Set up via Keypad HDK board RS 232 channel Interface configuration and Packet format may be set through the use of the keypad In order to receive confirmation on the keypad selections the console monitor RS 232 cable must be connected from the bottom DB9 connector and to a PC Once the connection is established o...

Страница 26: ...alog speech from the RCA jacks or handset is digitized by the on board PCM3500 A D D A The PCM3500 has a master clock speed of 4 096 MHz and is configured for an 8 kHz sampling frequency and then sent to the AMBE 2000 where it gets encoded into compressed digital data This data may be output to the channel interface or loopbacked to the RCA jacks or handset depending on the user settings THE HDK p...

Страница 27: ...Structure Data packets sent as byte aligned frames over the asynchronous RS 232 UART Serial interface This helps maintains compatibility with asynchronous 8N1 framing and synchronization if channel errors exist The first word is the sync element It holds the 16 bit identification 0x13EC of the start of the packet The packet sync value of the first word is always the same The second 16 bit word con...

Страница 28: ... only enter into AMBE 2000 format by using the console monitor and selecting the B option and then the 1 optionfrom the command menus All setting in AMBE 2000 format are stored in volatile memory an are not save after a board reset or a power cycle Word Description 0 Header always set to 0x13EC 1 Power Control ID 8bits Control Word 1 8 bits see Table 5 B 2 Rate info 0 3 Rate info 1 4 Rate info 2 5...

Страница 29: ...dec ONLY JP6 Jumper Must Be Removed Audio Input Output PCM Audio Loop Back JP6 Jumper Removed Loop Back HDK Audio Codec and AMBE 2000 Vocoder Chip Audio from the handset or line can be loop back through the AD DA Codec and the AMBE 2000 Vocoder chip To do this jumper Pin 2 to Pin 3 of the RS 232 Channel Connect top DB9S connector on the AMBE 2000 HDK Then the input audio will go through the codec ...

Страница 30: ...2 channel interface At the second AMBE 20x0 HDK Development Board the incoming channel packets of coded speech is decoded and played out on the handset or analog line output At the same time the second AMBE 20x0 HDK Vocoder board can encode speech from the analog input and send it across the RS 232 channel to be decoded by first AMBE 20x0 HDK Development Board Figure 9 Connecting two HDK boards to...

Страница 31: ...RT Serial Port Settings page 10 DB 9 Male RS 232 Straight Through Cable Pin Out Looking at the front of the connector DB 9 Female 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 Figure 11 RS 232 Straight through Cable Pin out for connecting HDK Board and PC together Once a RS 232 interface is connected between the By pressing the key the HDK will respond with two options for configuring the board Press A to S...

Страница 32: ... then Press to Exit Comment that provides the user with helpful information 7 Autobaud will be turned off When selecting a specific RS 232 channel rate the auto baud feature is turned off To turn Auto baud back on Press Board Reset After making a selection press and the board will print to screen Current RS 232 Baud Rate XXXXXX Current Format XXXXX Packet To configure the Channel Data format PRESS...

Страница 33: ...E 2000 Packet Format default setting Full AMBE 2000 Vocoder Chip Packet Connecting the RS 232 Channel I O to a PC Demonstration Software The CD included with the HDK kit includes a PC executable program ambe_hdk exe that enables the user to compress and record analog speech input data to a PC or decode a previously encoded file and play it out of the analog outputs The AMBE 20x0 HDK Development Bo...

Страница 34: ...ry that has the program file in it and type ambe_hdk exe with the desired command line options as follows The ambe_hdk exe program is set to default to recording the analog input to a file named record bit Command Line Options Option Name Variables Description Channel Mode Options Encode voice to file r filename Record mode Decode file to audio t filename Playback mode Table 21 File I O Command Li...

Страница 35: ...corded packets File Complete XXXX Packets recorded the total number of packets recorded PLAYBACK MODE transmit Example Playback of file named abc_voice bit command type ambe_hdk exe tabc_voice bit The program will respond with A Test Port COM 1 B Test Port COM 2 C Test Port COM 3 D Test Port COM 4 E Test Port COM 5 F Test Port COM 6 G Test Port COM 7 H Test Port COM 8 X EXIT SERIAL PORT TESTING En...

Страница 36: ... Out 3 Rx Channel In 4 RTS 5 CTS 6 Connected to Pin 1 7 Connected to Ground 8 Connected to Ground 9 No Connection Serial Port 2 Console Monitor Out bottom connector Type RS 232 asynchronous Connector RS 232 Serial Port Pin Out Pin Number Name 1 Connected to Pin 6 2 Tx Console Out 3 Rx Console In 4 RTS 5 CTS 6 Connected to Pin 1 7 Connected to Ground 8 Connected to Ground 9 No Connection Audio I O ...

Страница 37: ...Output Level 1 0 Volt RMS Output Impedance 50 Ohms Bandwidth 20 Hz to 3 6 kHz up to 48 kHz available A D Resolution 16 bits SNR Non Weighted 84 dB A D Sampling Rate 8 kHz up to 96kHz available Minimum Load 10k Ohms nominal Handset Type Single ended Connector RJ 4P4C Bandwidth 20 Hz to 4 kHz A D Sampling Rate 8 kHz A D Resolution 16 bits Handset Pin Out RJ11 Connector Pin Number Signal Name 1 and 2...

Страница 38: ... TDI 10 Digital Ground 4 Digital Ground 11 TCK 5 Sys_3v3 12 Digital Ground 6 13 EMU0 7 TDO 14 EMU1 Electrical Input J10 Power Pin Number Name Center 5 Volts DC Shield Ground DC Power Input Voltage 5 Volts DC Input Current 250 ma 5V DC Mechanical Mechanical Weight 5 3 oz with connectors installed Size W X D X H 6 75 X 5 5 JTAG Connections Setup Control JP14 Pins Signal Jumper Off Codec Loop back Ju...

Страница 39: ...cus ti com docs toolsw folders print msp prgs430 html Xilinx Platform Cable USB Part Number DLC9 http www xilinx com xlnx xebiz designResources ip_product_details jsp key HW USB iLanguageID 1 MSPGCC MSP 430 GNU Compiler http mspgcc sourceforge net Printed Circuit Board Layout Diagram Printed Circuit Board Ground Planes ANALOG DIGITAL DIGITAL Channel Schematics Digital Voice Systems Inc The Speech ...

Страница 40: ...ER_DATA_CLK 44 0 I RX_DATA_0 21 1 O SER_DATA_TX 45 1 I RX_DATA_1 22 2 I SER_DATA_RX 46 2 I RX_DATA_2 23 3 I AMBE_EPR 47 3 I RX_DATA_3 24 4 N C 48 4 I RX_DATA_4 25 5 N C 49 5 I RX_DATA_5 26 6 N C 50 6 I RX_DATA_6 27 P2 7 N C 51 P5 7 I RX_DATA_7 28 0 O LED 59 0 O TX_DATA_2 29 1 O LED_EN 60 1 O TX_DATA_1 30 2 O LED_CTL 61 2 O TX_DATA_0 31 3 O SHIFT_TX 2 3 O TX_DATA_3 32 4 O TX_DATA_OUT 3 4 O TX_DATA_...

Страница 41: ...IFT_RX 33 I POWER_ON_RESET 34 I MSP430_RESET 35 VCC 36 O CHAN_CLK 37 I SHIFT_TX 38 O DIGIT_0 39 O DIGIT_1 40 I O N C 41 I LED_EN 42 I LED_CTL 43 I BCK_BUFF 44 O PCM3500 PDWN Software Development Software development will be accomplished by using the freely available GCC Gnu Compiler Collection This will give the purchaser an opportunity to compile code for them and to make changes to the provided ...

Страница 42: ...rovided in the Texas Instruments PCM3500 data sheet before finalizing any design Additional Reference Material AMBE 2000 or AMBE 2020 vocoder chip Users Manual http www dvsinc com literature htm Application Report Understanding Data Converters http www s ti com sc psheets slaa013 slaa013 pdf PCM3500 Data Sheet http www s ti com sc ds pcm3500 pdf PCM3500 Evaluation Board http www s ti com sc psheet...

Страница 43: ... please contact Digital Voice Systems Inc 234 Littleton Road Westford MA 01886 USA Phone 978 392 0002 Fax 978 392 8866 email info dvsinc com web www dvsinc com Support engineers are available Monday through Friday 9 00 AM to 5 00 PM eastern time and can be contacted by Phone 978 392 0002 Fax 978 392 8866 Email info dvsinc com World Wide Web http www dvsinc com Digital Voice Systems Inc The Speech ...

Страница 44: ... 8 25 06 Edits to Serial MSP430 and Xilinx Schematics 32 33 34 Added RS 232 cable Pin out drawings Fig 10 and Fig 11 25 2 12 06 06 Edited Table 14 to clearly identify between AMBE and AMBE Data Rates 16 3 1 3 07 Added note to Table 15 16 4 7 9 07 Revised Table 14 rate 6400 speech 0 FEC to be Down Down Up Up Down 16 5 9 19 07 Revised page 21 to include more details on loop back 21 NOTES ...

Страница 45: ...AMBE 20x0 HDK Development Board User s Manual Preliminary Page 46 DVSI Confidential Proprietary Section 7 Support ...

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