Design Specification - Datasound Laboratories Ltd
Contents
1. To Maximise the EMI performance the unused N C conductors will be terminated with 75Q and 1 5nF to the RJ45 shield Electrical interface specifications The interface should conform to the EEE 802 3 2000 Edition specifications Temporal Specifications Timing constraints The interface should conform to the EEE 802 3 2000 Edition specifications 10 14USB OTG This function will provide a connection to either a USB device or to a USB Host Methods This port will be provided with a USB microAB socket The pin out of this connector will be as follows 1 VBUS 2 3 D 4 5 Copyright 2014 DSL Page 23 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification To enable the connection of a USB device a USB microA plug to USB A socket adapter will be provided To enable the system to be connected to a host a USB microB to USB A plug will be provided Electrical interface specifications The interface used should meet the Universal Serial Bus Revision 2 0 specification Temporal Specifications Timing constraints The interface used should meet the Universal Serial Bus Revision 2 0 specification 10 15USB Switching As power is drawn through the USB interface when connected to a USB device both the product and external peripherals will be protected from excess current draw either damaging devices or crashing the system This function should also provide the facility for the2. This will draw no power from the board in normal use allowing the power requirement for a design to be ascertained Copyright 2014 DSL Page 30 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 11 Technological Specifications 11 1 Geographical distribution constraints The Ethernet network allows for a maximum of 100m between devices The TIA485 A network allows for a maximum network length of 1200m 11 2Maintenance and operating safety 11 2 1 Maintenance Functions The JTAG SWD interface in combination with the ICDI can be used to both program the microcontroller flash and to debug any application where supported by the development software The Texas Instruments TIVA boot loader code loaded into ROM on selected TIVA microcontrollers also provides flash loading via serial connections This provides flash loading over UART SSI 12C SSI Ethernet CAN and USB The microcontroller fitted to the development kit will include ROM TIVA microcontrollers without ROM have a one time use serial flash loader loaded into flash This provides flash loading over UART or SSI Microcontrollers without ROM may be used in designs created from the development kit 11 2 2 Safety The system does not include any high voltage or high current interfaces This system is not intended for medical or military use As such there are no requirements for fault tolerance The system should meet Council Directive
3. Design through collaboration Design Specification Product No 1253 000 Document No 106 062 Issue 1 1 Date 27 11 2014 Author Kevin Kilford Datasound Laboratories Limited Tel 44 0 1462 675530 150 4 Aylesford Court Works Road Fax 44 0 1462 482461 SH Letchworth Garden City Herts SG6 1LP Email design dsl ltd co uk FM 38066 DSL AMPIC Design Specification Contents Te BIS CIO E ei eae 4 2 COTISATIONS Ne rere 4 3 Acknowledgments RS ee eee ere eee eee ee ee ee ee ee 4 4 Record OF AMGNOMOGMS EE 5 BPI Se a a E utcemestysatadegeacneat 6 E oeren 7 6 1 Feta 7 6 2 Terms Definitions and ACronymsS sn Manet 8 7 Problem PROSE IAT ON EE 9 Tel Specificato E 9 72 BriefanalySiS aedini a eae ar a i araa aai 10 8 System ae len E 12 8 1 TIA 232 F compatible serial networks 12 8 2 TIA EIA 422 B compatible serial networks 12 8 3 TRG et LAN ent terne int inter terasse teinte 12 8 4 CAN BUS den e A E nee 12 8 5 USB device s and host S nan een ent einen ame 12 8 6 Ettel Seeerei 13 8 7 4 20mMA dE 13 8 8 4 20mA receiver and power Supp 13 8 9 Analog ne CEET 13 8 10 Ee 13 8 10 1 Isolated Wl 60 CP eee eee ee ee 13 8 10 2 Open RT neut E 13 B 10 3 Change over Eu TE 13 8 11 Temperature Sensor enee EENS SEENEN 14 8 12 MicroSD Carel PERS mvanedeimsenlbmnenniennerdeiet 14 8 13 Application program eegene 14 Eat a WE Ee en ed tee een 14 813 2 NRA neice eames recede een eens 14 8 14 KEE 14 8 14 1 Momentary switch
4. 4 4 20mA 10 10 1 Isolation This will provide isolation for the current loop and power supply to the rest of the circuit 10 11 Temperature sensor This provides the ability to detect the current ambient temperature Use of specific components This will use an LM75 compatible device with the 1 C bus directly connected to the microcontroller 10 12CAN bus transceiver This function will provide the physical and transfer layers of a CAN bus transceiver meeting the ISO 11898 standard Methods This device will be provided with a vertically mounted 4 way screw terminal The pin out of this connector will be as follows CT CAN V 5V 2 CANH 3 CANL 4 GND Electrical interface specifications The electrical specification for this interface shall meet the ISO 11898 standard Temporal Specifications Timing constraints All temporal specifications will meet the CAN protocol version 2 0 A B Copyright 2014 DSL Page 22 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 10 13LAN This function will provide the termination for the Ethernet controller including the Ethernet 1 1 transformer and connector Methods This device will be provided with a horizontally mounted 8 way RJ45 Modular connector The pin out of this connector will be as follows 1 TX 2 1 TX 3 RX 4 N C 5 N C 6 RX 7 N C 8 N C
5. 106 062 Issue 1 1 DSL AMPIC Design Specification 8 6 Thermocouple This allows the connection of an external cold junction compensated temperature sensor The standard build will allow the connection of a K type Chromel Alumel thermocouple whilst build options will allow the use of other thermocouple types Entity data and event definition The data will in 14 bit digital format with a resolution of 0 25 C This will register temperatures from 270 C to 1375 C with a K Type thermocouple This will not generate an event or interrupt and will need to be polled 8 7 4 20mA transmitter This is an analogue current loop device which controls the loop current to represent a single parameter The application program will be responsible for the appropriate scaling 8 8 4 20mA receiver and power supply This is an analogue current loop device which can interpret a single parameter transmitted from the system as a current correlated to the parameter This can be used to connect external sensors The input will be converted to an analogue voltage which can be read by the application program The application program will be responsible for any scaling necessary to convert this to the original sensor s units 8 9 Analog Inputs Four analog inputs will be provided for application use The application program will be responsible for interpreting and scaling 8 10 GPIO 8 10 1 Isolated inputs Eight isolated inputs will be pr
6. EIA 422 B standard The data packets for the TIA 485 A send receive function must meet the TIA 485 A standard Provision will be made in the design for both a termination resistor and bias resistors to be fitted but these will not be fitted as standard 10 5 TIA 422 B TIA 485 A Interface selection This function will enable the selection of the interface type between RS485 2 wire half duplex and RS422 4 wire full duplex modes Methods This port will be switchable between 2 wire and 4 wire modes via an on board jumper 10 6microSD Card Connector This function will provide the capability of connecting a microSD card to the microcontroller Electrical interface specifications The connection should conform to the SD Specifications Version 3 01 SPI Mode Copyright 2014 DSL Page 20 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 10 7 Configuration storage This function will provide additional EEPROM based storage for application use This could be used to store configuration parameters Methods This function should use an SPI device connected in a de facto industry standard 8 pin package 10 8NVRAM This function will provide non volatile storage for application use This could be used to store run time variables that need to be retained despite power failures such as a tachometer total value Methods This function should use an SPI device connected in a de facto industry standard 8 pin
7. IBU stunt evrendtnsstinesretatioterens naines 14 814 2 Character CD ennemie neue 14 RS ean eee eee gee eee aero ees ees 14 8 15 A SO eet eee ee eee ee eee 15 EE 0 ac E 15 8 152 SPORE er ere a eee eer ee eer eee eee ere 15 815 3 PTE Serial POM EE 15 9 Delimitation of inputs outputs ss 16 10 Functional Specification ces sic Eege 17 10 1 Power SA LPDIN ee eee Eer 17 10 2 OCR ae ree eee ee nenne 18 en WEE 18 10227 FlAS Nissan tea nt annee ends 19 10 3 TIA 232 F compatible serial network 19 10 4 TIA 422 B TIA 485 A compatible serial network 19 10 5 TIA 422 B TIA 485 A Interface selection 20 10 6 microSD Card Connector E 20 10 7 C nfiguratiorn SOA aise ane it A AKEE EA AAEN EEA TEKEE En 21 10 8 NVRAM ere ne nn lan mia ne 21 10 9 auer E En 21 Copyright 2014 DSL Page 2 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 10 10 4 20mA current loop driver is 21 1010 7 E e ES ee ee inde 22 10 11 Temperature Sensor ege EE 22 10 12 e EE 22 10 13 LAN sand nn seine 23 10 14 USB a KE a E EE EE 23 10 15 USB Switching EE 24 10 16 Analogue inputs cicseccnzccenrvzarecnonttnndierewecitentenieenieietonteeieenbiececewinnien 24 eat e NEE e EE 25 10 17 4 20mA current loop receiver is 25 10 17 1 Current to voltage converter ss 25 10 17 2 DC DC CONVERSE Se ena seca sien dGaecci eda cacs tae ceeesasaautenesers 26 10 17 39 VISIO Re a ed 26 10 17 4 Analogue to Digital converter ccc ceeeeeee teeter eeeteeteeeeeeeee
8. end user Methods This device will be provided with a vertically mounted 4 way screw terminal The pin out of this connector will be as follows EXITATION VOLTAGE EXITATION VOLTAGE 4 20mA 4 20mA B O P 10 17 1 Current to voltage converter This converts the current to a voltage 3 Support for analogue comparators should be provided where possible Copyright 2014 DSL Page 25 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 10 17 2 DC DC converter This takes power from the current loop to power any isolated circuitry on the loop side of the isolation 10 17 3 Isolation This will provide isolation for the current loop and power supply to the rest of the circuit 10 17 4 Analogue to Digital converter This will create a digital representation of the current in the loop Variable Data precision These inputs need to have a minimum of 10 bit resolution Use of specific components This can utilise one of the microcontroller 10 bit ADC inputs Temporal Specifications Timing constraints This needs to be capable of a throughput of at least 100kS s 10 18GPIO This function provides UO functionality to be driven by the application 10 18 1 Isolated inputs This provides eight opto isolated inputs for application use Methods This device will be provided with a vertically mounted 16 way screw terminal Copyright 2014 DSL Page 26 Document No 1
9. for his application switch off the others and get as close as possible to what his own sensor design needs to be functionally without requiring software changes for the production version and using the same amount power so that they can size batteries if necessary 7 2 Brief analysis The proposed solution will be based on a Texas Instruments TIVA ARM Cortex M4 processor These processors have a cost of approximately 3 11 dependent upon the amount of included flash RAM peripherals and the maximum processor clock speed Texas Instruments has a comprehensive suite of royalty free software supporting all of the peripheral interfaces to speed development as well as a number of example programs that can be used as a starting point for new designs The software provided to drive each interface can be incorporated into your own software or is available in ROM to free storage Texas Instruments also supply a free real time operating system with no run time fees that can be used stand alone or with their own compiler The Texas Instruments TIVA ARM Cortex M4 microcontrollers are also supported by all of the major ARM compilers The proposed solution would include a thermocouple connection an on board temperature sensor 4 20mA input analogue inputs and GPIO to provide the inputs for the sensor The GPIO connections will be organised in such a way that some can be configured for use as a PWM output A micr
10. of the inputs and outputs for the system to be designed the entities these go to and whether they are continuous or momentary Section 10 Functional Specification This section describes in detail every function that the system must perform This includes the precision of data and variables that each function uses operating conditions accuracy performances special operating modes and predetermined methods Section 11 Technological Specifications This section describes all constraints such as cost mechanical or environmental for the system Section 12 Test and Certification Plan This section provides a pr cis of the tests plan s to be created for the system Also the customer certification obligations are outlined in this section Section 13 Documentation This section outlines all required documentation throughout the design phase 6 1 Terminology The system described within this document is that which shall be designed from it The application considered in this document shall be the closed system having no useful relation with the outside for the problem to be solved formed by the system to be designed and the objects related to it The environment is all application objects excluding the system to be designed Objects in the environment are called entities An object has a dynamic behaviour and has its own independence It is necessarily a functional reality but not necessarily physical Copyright 2014 DSL
11. package for flash and EEPROMs 10 9 Thermocouple interface This function will provide the connection for an external thermocouple cold junction compensation for the thermocouple and translation from the thermocouple voltage into a temperature value Methods This device will be provided with a vertically mounted 2 way screw terminal Use of specific components If a Maxim MAX31855 device was used this provides a cold junction compensated digital temperature output via SPI bus This part is available for K J N S T E and R type thermocouples allowing provision for the most popular K type in the development kit and support for all of the other types for custom designs 10 104 20mA current loop driver This function will provide a 4 20mA current loop transmitter with the current output to be controlled by the application This function will also provide the means necessary to connect the current loop power supply to the loop if required by the end user 8 The voltage to temperature conversion may use a linear equation and therefore any non linearity of the thermocouple used may need software compensation to be applied Copyright 2014 DSL Page 21 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification Methods This device will be provided with a vertically mounted 4 way screw terminal The pin out of this connector will be as follows 1 EXITATION VOLTAGE 2 EXITATION VOLTAGE 3 4 20mA
12. system in all its iterations and describe all interfaces and their connection An installation manual will be supplied Copyright 2014 DSL Page 37 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 14 Additional Information 14 1 Technical Explanations 14 1 1 TIA EIA 422 B Termination Termination is used to match the impedance of a transmitting or receiving node to the impedance of the transmission line used If the impedances are mismatched the transmitted signal cannot be fully absorbed by the load and some portion of the signal will be reflected back onto the transmission line This reflected signal will travel up and down the cable reducing in amplitude over time The disadvantages of terminating are e Driver loads are increased e Biasing requirements are changed Whether termination is required on a network should be based upon the total cable length and the data rate employed If all signal reflections will be damped out prior to the centre of a data bit at which point the receiver will be sampling termination will not be required For example the propagation delay of any cable can be calculated from its length and propagation velocity typically 66 75 of the speed of light c If a cable of 100m has a round trip of 200m and a propagation velocity of 66 of c one round trip is completed in approximately 1us Assuming that the reflections are completely damped after 5 round trips the signal will stab
13. 06 062 Issue 1 1 DSL AMPIC Design Specification The pin out of this connector will be as follows DIT DU GND DI2 DU GND wo lolul c n z SS 10 18 2 Open Collector Outputs This provides six open drain outputs for application use Methods This device will be provided with a vertically mounted 12 way screw terminal The pin out of this connector will be as follows DO1 DO_VCC DO2 DO_VCC DO3 DO_VCC DO4 DO_VCC DO5 10 DO_VCC 11 DO6 12 DO_VCC Oo Nj Od 01 A Po Any inductive load transient suppression necessary will be included within the design rather than requiring external components Copyright 2014 DSL Page 27 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 10 18 3 Change over relay outputs This provides two change over relays with 240VAC 5A switching capability for application use Methods This device will be provided with a vertically mounted 6 way screw terminal The pin out of this connector will be as follows R1 NO R1 COM R1 NC R2 NO R2 COM R2 NC OO AIIN 10 19LCD character display This will provide a 16x2 cost effective alphanumeric LCD module to be used under application control as part of a human machine interface where necessary 10 20Push buttons This will provide four momentary push button
14. 4 DSL Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 7 Problem Presentation 7 1 Specification DSL are increasingly receiving requests for custom designs that require ARM processors or for designs that require lower performance and power consumption than x86 based processors The low performance and consumption type of designs do not always need a full operating system such as Microsoft Windows Windows Embedded Compact or Linux although they may require some real time deterministic aspect There are currently three families of ARM processors 1 Cortex A series are application processors which have similar multimedia capabilities and overall performance comparable to the ICOP Vortex processors or Intel processors used in other DSL distributed products 2 Cortex R series have a similar performance to the mid range Cortex A processors but include hardware support for real time operating systems with features such as deterministic interrupt performance 3 Cortex M series have performance equivalent to the best microcontrollers whilst being very energy efficient The Cortex M4 processors are general purpose high performance 32 bit microcontroller type processors with support for highly deterministic real time applications Processors based on the ARM Cortex M4 core are widely available from manufacturers including NXP Atmel STMicro Texas Instruments Toshiba and Freesc
15. 73 23 EEC the Low Voltage Directive All due diligence will be applied during design to ensure that the system does not compromise the user s safety 11 3Electrical specifications The system should be powered by a 5V regulated supply No current consumption limit has been specified although this should be kept to a minimum and any potentially unused interfaces in end user applications should have the facility to be turned off This will facilitate the design of battery powered end user applications The external power supply MUST be monotonic at power up Careful consideration of the current capacity of the external power supply and the entire loading it will experience at power on due to in rush currents should be assessed to ensure that this will be the case Copyright 2014 DSL Page 31 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 11 4Miscellaneous specifications 11 4 1 Product Constraints e The system operating conditions will meet the following o Operating Temperature 40 C to 85 C e All parts selected by DSL will either be lead free or have a lead free alternative such that the product may meet the requirements of the Restriction of Hazardous Substances directive ROHS e The system design must be made in consideration for European electromagnetic compatibility EMC laws This includes protecting all interfaces where they leave the system from vulnerabilities to electrostatic disc
16. DIRECTIVE 2002 95 EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment covering the regulations referred to as ROHS is available from the European Union website http europa eu Council Directive 89 336 EEC the Electromagnetic Compatibility Directive and its amending directives are available from the European Union website http europa eu Council Directive 73 23 EEC the Low Voltage Directive and its amending directives are available from the European Union website http europa eu The Electromagnetic Compatibility Amendment Regulations 1994 and its amending regulations are available from Her Majesty s Stationary Office website http www hmso gov uk DIRECTIVE 2002 95 EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment covering the regulations referred to as ROHS is available from the European Union website http europa eu Copyright 2014 DSL Page 40 Document No 106 062 Issue 1 1
17. Page 7 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 6 2 Terms Definitions and Acronyms Term Definition ADC Analogue to Digital Converter API Application Programming Interface An interface implemented by a software program to enable interaction with other software CAN Controller Area Network is a standard vehicular bus which allows microcontrollers and devices to communicate without a host computer COM The original yet still common name of the serial port interface on IBM PC compatible computers Component The component side of a PCB is conventionally the upper side on which the components are side mounted DAC Digital to Analogue Converter ECR Engineering Change Request EEPROM Electrically Erasable Programmable Read Only Memory GPIO General Purpose Input Output GPS Global Positioning System is a global navigation satellite system that provides location and time information where there is an unobstructed line of sight to four or more GPS satellites GSM GPRS Global System for Mobile communications General packet radio switching is a packet switching mobile data service standardised as part of the phase 2 update to the second generation GSM standard JTAG Joint Test Action Group JTAG is the common name for the IEEE 1149 1 Standard Test Access Port and Boundary Scan Architecture It is used fo
18. SL AMPIC Design Specification Connector Configuration storage NVRAM Thermocouple interface 4 20mA current loop driver Temperature sensor CAN bus transceiver LAN USB Analogue inputs 4 20mA current loop receiver Isolated inputs Open Collector Outputs Change over relay outputs outputs Relays and 4 20mA driver driven from the menu For instance Digital Output 1 set to high After making some of these changes the micro SD card will be removed from the AMPIC system and the log file verified The EEPROM will be used to store the data to display when booting As this is written when not found in the EEPROM the value to write will be changed in the firmware whilst ensuring that the sign on text does not change The currently set values for the Digital Outputs Relays and 4 20mA drivers will be stored in NVRAM when changed The values will then be verified following a power cycle A K Type thermocouple will be connected and the reading shown in the menu compared to the reading from a digital thermometer with a K Type thermocouple The current loop driver will be set in steps of 1mA from 4mA to 20mA and the output verified within 1 using a UKAS Calibrated Volt mA Loop Calibrator The reading of the LM75 temperature sensor will be verified using a digital thermometer with K Type thermocouple attached to the top of the part An external CAN Bus node will send a request using a base frame forma
19. Termination EE 38 THA TIA EIA 422 B Bias ii EE 38 14 2 CAN bus Termination E 39 14 3 DOCUIMENTANON SOURCES cdc te cece nd nie eee 40 Copyright 2014 DSL Page 3 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 1 Disclaimer All information contained in this specification is believed to be accurate and reliable However DSL assumes no responsibility for its use Since conditions of product use are outside our control we make no warranties express or implied in relation thereto We therefore cannot accept any liability in connection with any use of this information Nothing herein is to be taken as a license to operate under or recommendation to infringe any patents Whilst every effort has been made to ensure that this document is correct errors can occur If you find any errors or omissions please let us know so that we can put them right 2 Confidentiality The enclosed information is submitted for the purpose of describing and detailing the requirements for AMPIC The information included in this document in its entirety is considered both confidential and proprietary to DSL and may not be copied or disclosed to any other party without the written consent of the appropriate authority at DSL 3 Acknowledgments Microsoft and Windows are registered trademarks of Microsoft Corporation in the United States and or other countries LINUX is a registered trademark of Linus Torvalds ARM and Cortex are tr
20. addition to the program storage will be provided to store any relevant configuration parameters 8 13 2 NVRAM NVRAM will be provided to allow the application program to record any run time parameters that are required to be retained during power down situations This will operate faster than the flash but will not be as fast as the normal program SRAM 8 14 User User interaction will be provided by the application program and can include the use of the following interface functions 8 14 1 Momentary switch inputs Four momentary switches will be provided for application use 8 14 2 Character LCD A two line character LCD with a common 8 bit parallel interface will be provided for application use 8 14 3 LEDs Two LEDs will be provided for application use Copyright 2014 DSL Page 14 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 8 15 Expansion Expansion of the system for additional application requirements will be met with the following ports 8 15 1 CC Port This is a serial port which has a common connection to the on board temperature sensor Entity data and event definition All data and events passed both to and from the system will meet those outlined in the C Bus specification 8 15 2 SPI Port This is a serial port which has a common connection to the thermocouple the 4 20mA input and the on board storage devices 8 15 3 TTL Serial Port This is a UART serial port with modem cont
21. ademarks or registered trademarks of ARM Ltd or its subsidiaries Stellaris is a registered trademark of Texas Instruments Incorporated Tiva and TivaWare are trademarks of Texas Instruments Incorporated The Bluetooth word mark and logos are owned by the Bluetooth SIG Inc Microchip and PIC are registered trademarks of Microchip Technology Inc Intel is a registered trademark of Intel Corporation or its subsidiaries in the United States and other countries All other products and trademarks mentioned in this document are trademarks of their respective owners DSL has attempted to properly capitalize and punctuate trademarks but cannot warranty that it has done so in every case Copyright 2014 DSL Page 4 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 4 Record of Amendments DATE ISSUE DETAILS Include changed section numbers and implications 23 Oct 2012 1 0 Initial Release 27 Nov 2014 1 1 Renamed to AMPIC Updated to latest document style Changed to TIVA Cortex M4 processor 7 1 10 2 11 2 1 4 20mA Tx Rx descriptions swapped 8 7 8 8 Reduced to 4 analogue inputs 8 9 9 10 1 6 All SPI devices on single bus 8 15 2 Removed prototyping area 8 15 4 Added connector diagrams to represent correct orientation 10 Added prototype test plan 12 1 Updated customer approval wording 12 3 Copyright 2014 DSL Page 5 Document No 106 062 Issue 1 1 DSL AMPIC Design Specificatio
22. ale Compilers with support for these processors are also widely available from software houses including Keil IAR systems Mentor Graphics Code Red MikroElektronika and the processor manufacturers themselves It is proposed to create a sensor development kit including an ARM Cortex M4 based processor with a number of inputs outputs and user interface hardware that are predicted to be required for sensor designs It is anticipated that clients could use this sensor development kit to fully develop and test a sensor design before requesting that DSL create a custom design for them Development kits manufactured by the processor manufacturers such as Texas Instruments all seem to be targeted toward a particular application so have limited scope to use as a basis for another sensor type The best competitor development kit is manufactured by MikroElectronika Copyright 2014 DSL Page 9 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification This goes to the other extreme whereby they have a baseboard with a plug in microcontroller module and plug in I O modules This gives total flexibility but does not necessarily make the most of the built in capabilities of the microcontroller as each I O module uses a serial connection Also this does not necessarily give the lowest current consumption for each function The proposed system would provide each customer the opportunity to choose the interfaces he needs
23. and charging circuits will need to be prototyped separately and incorporated into a product designed from the sensor development kit Methods This device will be provided with a vertically mounted 2 way screw terminal and a Kycon KPJX 3S connector in parallel The pin out of the terminal connector will be as follows 5V IN OV IN Nh The pin out of the Kycon connector will be as follows 1 5V IN 2 0V IN 3 N C e NN Folded Terminal 0 7mm D I Copyright 2014 DSL Page 17 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 10 2Microcontroller This function will provide the storage for the OS and application code and execute both This will require connections to the following interfaces e 3 off asynchronous serial ports for communications with o TIA 232 F compatible peripheral devices o TIA 422 B or TIA 485 A compatible peripheral devices o Expansion devices with handshaking lines e SPI port for communication with microSD Card Flash for application configuration storage NVRAM for non volatile application variable storage Thermocouple 4 20mA outputs Expansion devices e 2C Bus for communication with o Temperature sensor o Expansion devices Can Bus interface Ethernet LAN controller USB OTG controller for communication with USB hosts and devices Analogue to digital converters for 4 20mA input s and general application use e General purpose input ou
24. can be found on the Telecommunications Industry Association website http www tiaonline org ANSI TIA EIA 485 A 98 standard is produced by the Telecommunications Industry Association More information and links to suppliers of these documents can be found on the Telecommunications Industry Association website http www tiaonline org ANSI TIA 422 B 1994 standard is produced by the Telecommunications Industry Association More information and links to suppliers of these documents can be found on the Telecommunications Industry Association website http www tiaonline org Universal Serial Bus Revision 2 0 specification is available from the USB Implementers Forum Inc website http www usb org CAN Specification Version 2 0 is available from Robert Bosch GmbH More information can be found on the website http www semiconductors bosch de ISO 11898 is produced by ISO International Organization for Standardization More information can be found on the website http www iso org SD Specifications Version 3 01 is available from the SD Association website http Awww sdcard org The FC Bus Specifications are available from NXP Semiconductors More information can be found on the website http www nxp com IEEE 1149 1 Standard Test Access Port and Boundary Scan Architecture commonly known as JTAG is available from the Institute of Electrical and Electronics Engineers Inc More information can be found on the website http www ieee org
25. cter The LCD is used by the demonstration firmware display Different menu items will drive each character on the LCD such that its correct operation can be confirmed Push buttons All four push buttons will be used to navigate the menu during the tests LEDs The LEDs will alternately flash at 1Hz when the demonstration firmware is operational TIA 232 F This port will echo all received characters compatible serial An external system will be connected with the port configured for network 9600 baud and 8 N 1 operation and the received characters will be compared to the sent to ensure that these match TIA 422 B TIA This port will echo all received characters 485 A compatible An external system will be connected using a USB to RS485 serial network adapter configured for 4 wire full duplex operation with the port configured for 9600 baud and 8 N 1 operation and the received characters will be compared to the sent to ensure that these match TIA 422 B TIA The AMPIC will be reconfigured for 2 wire RS485 operation 485 A Interface The USB to RS485 adapter will be reconfigured for 2 wire half selection duplex operation and set to enable its drivers only when transmitting The port will then be rechecked to ensure that all echoed characters match those previously sent microSD Card The microSD Card will store a log file of changes to the digital Copyright 2014 DSL Page 33 Document No 106 062 Issue 1 1 D
26. e This can also be used with a number of the development tools to provide software debugging support This will also provide 1 USB to UART interface that can be used with the Texas Instruments TIVA boot loader or serial flash loader code to program the microcontroller flash Methods The JTAG connection will be made using a 10 way 0 05 pitch shrouded header The pin out of this connector will be as follows 1 3 3V 2 TMS SWDIO 3 GND 4 TCK SWCLK 5 GND 6 TDO SWO 7 Key 8 TDI 9 GNDDetect 10 RESETn 1 Whilst this is a lesser recognised connector for ARM JTAG SWD it will take much less board space than a 20 way 0 1 shrouded header Copyright 2014 DSL Page 29 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification The UART connection will be made using a 10 way 2mm pitch pin header The pin out of this connector will be as follows N C 2 RxD TxD 4 N C GND 6 N C N C 8 N C N C 10 5V Ni 01 Go The programming hardware consists of a USB to JTAG adapter using an FTDI FT2232 USB debug controller Reference designs for these are available from Tl and FTDI Whilst this functionality will be integrated into the board design the PCB should be laid out in such as fashion that this can be removed from the finished board and used to debug a finished product designed from the development kit
27. eeteeeeaaees 26 Eeer 26 10 18 71 Isolated INPUTS icini E tee 26 10 18 2 Open Collector Outputs eege eegne eege Eege Eder 27 10 183 Change over relay outputs ccc eect eeeeeeee nett eee eeeeecaeeeeeeeeeeeteeenaaees 28 10 19 LOD character display no nbnurdansitisureenerthiqnennltetite men ierer tiens 28 10 20 RON DONS ESS an a wueteo a eto a ew acne 28 le 52 En 28 10 22 gaer en EEN 28 10 23 In Circuit Debug Interface ss 29 11 Technological Specifications stents reece ona sete ene tes iweasdeen te ertcanmnatdgalexeitet ocanteadg extee eearans 31 11 1 Geographical distribution Consiraints ccc eee eeeeenee teeter ee teeeetaeeeeeeeeeeteeee 31 11 2 Maintenance and operating safety 31 11 2 1 Maintenance Fun lions scassicosscisicsiseictcnspedeivracaiasccunetelesunediavisteateruseiatanumdeneee 31 NA 31 11 3 Electrical specifications eege ne Eege enge 31 11 4 Miscellaneous specifications 2 0 2 2 cece eeeeeeeeee cette ee eeeeteee teeter eeeeeeeaaeeeeeeeeeteeneaaees 32 11 4 1 Product a 32 12 Test and Certification Plan EE 33 12 1 Prototype testing DE 33 12 2 Prod cton TESTING EE 36 12 3 en ul EE 36 12 4 RO Ce 36 E Ot USN ONE SSSR nt 37 13 1 Implementation Documentation 37 13 2 Manutacturing PAR siennes nan E EEEREN 37 13 3 User AE E Sn so ceees 37 14 Additional Information de secsteengcerteatenasans 38 14 1 Technical Explanations ssincirscrncerersenctecenoiesitenisentienci siete iteuiemneaieaiemesenciecannce 38 14 1 1 TIA EIA 422 B
28. harge ESD and protecting the system from electromagnetic interference EMI Copyright 2014 DSL Page 32 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 12 Test and Certification Plan 12 1 Prototype testing All printed circuit boards PCBs for prototype units will be bare board tested All prototype units will be visually inspected prior to testing Inspection will determine if components are correctly fitted solder joints are of sufficient quality and the units meet the required overall quality including cleanliness et cetera Static handling requirements will be adhered to throughout all stages All power supplies will be tested to determine that they supply the correct voltage they regulate over the required input range and that they provide an acceptable ripple voltage level All functions of the system will be functionally tested and all aspects tested to the specifications outlined in this document where viable All prototype boards will be serial numbered and individual record sheets of the following tests will be kept for each unit Function How to test Result Power Supply The 3 3V rail will be checked using an oscilloscope for the correct output and ripple voltages In Circuit Debug The system will be programmed using the ICD with the Interface demonstration firmware This provides a simple menu to exercise the outputs and display the inputs and major system parameters LCD chara
29. ilise after bus At 9600 baud each bit is 104us wide As the signal is stable well before the centre of the bit termination should not be required At 115 2k baud each bit is 8 7us wide As the signal is not stable before the centre of the bit termination will be required Termination resistors should only be placed at the extreme ends of a network and no more than two termination resistors should be used per network The above calculation shows that we should be able to have a network length of about 160m before termination is needed at 115 2k baud To allow use of this product in many different networks termination will not be included although provision will be added should termination be necessary in the future 14 1 2 TIA EIA 422 B Biasing When a TIA EIA 422 B or TIA 485 A network is idle all nodes are set to receive data and therefore all drivers are tri stated Without anything driving the network the state of the line is unknown If the voltage at the receiver inputs is less than 200mV the receiver output logic level will show that of the last bit received Copyright 2014 DSL Page 38 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification In order to maintain the correct idle state bias resistors can be added to the transmission lines A pull up resistor typically to 5V is added to RX and a pull down to ground is added to RX The bias resistor values are determined by the network load including termina
30. ll production units will be visually inspected prior to testing Inspection will determine if components are correctly fitted solder joints are of sufficient quality and the units meet the required overall quality including cleanliness et cetera No components will be reused on production units Static handling requirements will be adhered to throughout all production stages All production units will be fully functionally tested prior to shipment 12 3 Customer certification The customer will be required to verify acceptance that the following elements of the design comply with the requirements of this document e Electronic Design Mechanical Design PCB Layout Firmware Software The approval tests can occur at the customer s premises or following prior application may occur at DSL s premises with one of DSL s engineers present 12 4Notes DSL will use best practice throughout the design to ensure that the electromagnetic effects emitted by and affecting the product are limited As type approval tests may often be applied to prototype units the following statements should be noted e Prototype units may be delivered a number of track cuts and wire modifications applied These will be considered acceptable providing that the reliability and functionality of the system is not impaired e Initial production units will not have any wire modifications applied e Due to component lead times prototypes may use parts which do not compl
31. n 5 Approvals Commercial Approval Derek Carpenter Managing Director DSL Engineering Approval Keith Clutterbuck Engineering Manager DSL Client Approval Rory Dear Technical Sales Manager DSL l The client acknowledges that it is impractical to define the entire product to manufacturing detail within this document In signing the approval section of this document the client confirms that this document defines all those aspects of the design which are of significance to them The client agrees that any unspecified items which by implication are not of significance to them are now the sole responsibility of DSL The client acknowledges that client instigated changes to those unspecified items could have implications on previously advised timescales and or cost Copyright 2014 DSL Page 6 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 6 Document Organisation Section 7 Problem Presentation This section outlines DSL requirements for the system and a brief explanation of how it fits into their application Section 8 System Environment This section describes the environment within which the system must operate It describes all related entities with their requisite data and events The behaviour of the entities either individually or globally is described here Also all entity relationships can be found in this section Section 9 Delimitation of inputs outputs This section shows all
32. nector will be as follows 1 RxD 2 GND 3 TxD Electrical interface specifications The TIA 232 F pins must include 15kV Human body model ESD protection The electrical characteristics for the TIA 232 F send receive function must meet the TIA 232 F standard Temporal Specifications Timing constraints The data packets for the TIA 232 F send receive function must meet the TIA 232 F standard 10 4 TIA 422 B TIA 485 A compatible serial network This function will provide the transceivers for a 4 wire TIA 422 B compatible network or a 2 wire TIA 485 A compatible network The network type will be selectable See 10 5 below No handshaking lines will be implemented Copyright 2014 DSL Page 19 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification Methods This device will be provided with a vertically mounted 6 way screw terminal The pin out of this connector will be as follows Mode 422 485 1 TX TX RX 2 TX TX4 RX 3 GND GND 4 RX N C 5 RX N C 6 GND GND Electrical interface specifications The electrical characteristics for the TIA 422 B send receive function must meet the TIA EIA 422 B standard The electrical characteristics for the TIA 485 A send receive function must meet the TIA 485 A standard Temporal Specifications Timing constraints The data packets for the TIA 422 B send receive function must meet the TIA
33. oSD connector will be included to provide potential data logging storage System connections will be delivered using 4 20mA outputs CAN USB OTG and Ethernet If a Maxim MAX31855 device was used this provides a cold junction compensated digital temperature output via SPI bus This part is available for K J N S T E and R type thermocouples allowing us to provide a connection for the most popular type in the development kit and support all of the other types for custom designs This is not required for normal application storage Copyright 2014 DSL Page 10 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification One RS232 port and one RS422 RS485 port can be used as generic connections for system or sensor use An expansion port including 12C SPI and a TTL serial port with hand shaking lines will also be provided Further connections such as Bluetooth and WiFi can be added using AT modem modules from companies such as Multitech or U blox on these interfaces The GPIO ports will connect to a 2 line character LCD momentary push buttons and LEDs to provide a simple user interface whilst inputs will be opto isolated and outputs will have some change over relays and some open collector outputs Copyright 2014 DSL Page 11 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 8 System Environment Analysis of the problem shows that the following entities must be considered 8 1 TIA 232 F c
34. oltages on both CAN and CAN tend weakly towards Ya rail voltage During a dominant state the signal lines and resistor s move to a low impedance state with respect to the rails so that current flows through the resistor CAN voltage tends to 5V and CAN tends to OV A recessive state is only present on the bus when none of the transmitters on the bus is asserting a dominant state Irrespective of signal state the signals lines are always in low impedance state with respect to one another by virtue of the terminating resistors at the end of the bus As the system could be placed at any point within a CAN Bus network and the resistor terminations must be placed at either end the system will not include any termination resistors however provision will be made to fit them if necessary Copyright 2014 DSL Page 39 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 14 3Documentation sources IEEE 802 3 2000 Edition ISO IEC 8802 3 2000 is available from the Institute of Electrical and Electronics Engineers Inc More information can be found on the website http www ieee org EIA 232 standard is produced by the Electronic Industries Alliance More information and links to suppliers of these documents can be found on the Electronic Industries Alliance website http www eia org ANSI TIA 232 F 1997 standard is produced by the Telecommunications Industry Association More information and links to suppliers of these documents
35. ompatible serial networks This will network work at up to 115 2 KBaud It will not support RTS CTS DCD DTR DSR and RI modem control lines This is an alternate interface for connection to a host Entity data and event definition All data and events passed both to and from the system will meet those outlined in the TIA 232 F standard 8 2 TIA EIA 422 B compatible serial networks Working at up to 115 2 KBaud this is an alternate interface for connection to a host Entity data and event definition All data and events passed both to and from the system will meet those outlined in the TIA EIA 422 B and TIA 485 A standards 8 3 Ethernet LAN This is an alternate interface for connection to a host Entity data and event definition All data and events passed both to and from the system will meet the IEEE 802 3 2000 Edition ISO IEC 8802 3 2000 specification 8 4 CAN Bus This is an alternate interface for connection to a host Entity data and event definition The protocol for this interface will conform to the CAN protocol version 2 0 A B and the physical layer will meet SO 11898 8 5 USB device s and host s This is a peripheral control interface It may be used to connect other entities to the product or connect the product to a host Entity data and event definition The events and data for this interface are described in the Universal Serial Bus Revision 2 0 specification Copyright 2014 DSL Page 12 Document No
36. ovided for application use 8 10 2 Open Drain Outputs Six open drain outputs will be provided for application use 8 10 3 Change over relay outputs Two change over relays with 240VAC switching capability will be provided for application use 4 12 bit unit and two bits for the fraction 5 The temperature returned will be calculated using a linear relationship between the thermocouple voltage and temperature This will require software correction to allow for any non linearity in the thermocouple Copyright 2014 DSL Page 13 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 8 11 Temperature Sensor The system will include a temperature sensor to read the approximate ambient temperature around the system Entity data and event definition This will read temperatures of at least 40 C to 85 C This will have a resolution of 9 bits and an accuracy of 2 C This will not generate an event or interrupt and will need to be polled 8 12microSD Card This will provide optional local flash based storage to allow the application to perform any data logging function necessary Entity data and event definition All data and events passed both to and from the system will meet those outlined in the SD Specifications Version 3 01 SPI Mode 8 13 Application program This is the customer s software It provides a unique service to the user making the system part of a larger whole 8 13 1 Flash storage In
37. power to be turned off by the microcontroller when a USB host is plugged in Electrical interface specifications A maximum of 500mA can be drawn from the USB port If a device draws in excess of 500mA the USB power will be removed and a signal will be provided to the microcontroller 10 16 Analogue inputs This function will provide 4 Analogue 0 3V inputs for application use Any signal conditioning and signal attenuation required for the final application needs to happen externally Variable Data precision These inputs need to have a minimum of 10 bit resolution Copyright 2014 DSL Page 24 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification Methods This device will be provided with a vertically mounted 8 way screw terminal The pin out of this connector will be as follows Al A GND AIS Al_GND AIS Al_GND Al4 AlL GND DIN O1 BIO IN Use of specific components These can be implemented using the microcontroller 10 bit ADC inputs Temporal Specifications Timing constraints These inputs need to be capable of a throughput of at least 100kS s 10 16 1 Isolation This will provide isolation for the analogue inputs to the rest of the circuit 10 174 20mA current loop receiver This function will provide a 4 20mA current loop receiver This function will also provide the means necessary to connect the current loop power supply to the loop if required by the
38. r testing printed circuit boards using boundary scan kS s Kilo Samples per second LAN Local Area Network MAC Medium Access Controller MB Megabyte MS s Mega Samples per second OS Operating system OTG See USB OTG PCB Printed Circuit Board PWM Pulse width modulation QEI Quadrature encoder interface RAM Random Access Memory RS232 A standard for serial binary single ended data and control signals commonly used in computer serial ports RS422 A point to point or multi drop serial data transmission standard using balanced or differential signalling RS485 A point to point or multi drop serial data transmission standard using balanced or differential signalling RTC Real Time Clock RTOS Real Time Operating System SPI Serial Peripheral Interface Bus SRAM Static Random Access Memory Solder side The solder side of a PCB is conventionally the lower side where through hole components were soldered from SWD Serial Wire Debug is a 2 pin low pin count and high performance alternative to JTAG which is compatible with all ARM processors TTL Transistor Transistor Logic is a class of digital circuits where both the logic gating function and the amplifying function are performed by transistors UART Universal Asynchronous Receiver Transmitter USB Universal Serial Bus USB OTG USB On The Go allows a USB device to act as either a host or a peripheral with the mode selected by the cabling utilised Page 8 Copyright 201
39. rol lines and TTL signal levels This will network work at up to 115 2 KBaud It will support RTS CTS DCD DTR DSR and RI modem control lines where possible to permit the use of AT modem modules where required Copyright 2014 DSL Page 15 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 9 Delimitation of inputs outputs Thermo couple Sensor Digital Inputs System to specify Digital Outputs Change ove Relay Outputs Analog Inputs microSD Card Copyright 2014 DSL Page 16 Serial Port DD 8 8 Oo Ww D D RS422 48 Serial Port RS422 48 a Ethemet m m Ej SG 3 a gt nn 2 p D 2 SS nn Oo e S S e D D 2 2 nn er D 2 2 gt nn OD bea A D e D 2 S nn OD 2 2 D 2 S n 2 S el E ei d Serial Port CD by D RJ 2 a Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 10 Functional Specification 10 1 Power Supply This function will accept a regulated 5V DC input and generate any additional supplies necessary for the application This will allow a customer to power the development board using either a laboratory power supply or an ICOP desktop power supply This may not reflect the power supply requirements of the end application Any additional power supply regulation protection or battery switching
40. s to be used under application control as part of a human machine interface where necessary E g MENU UP DOWN and SELECT These will correctly recognise separate button presses but are not required to recognise any concurrent presses Concurrent presses can be ignored or recognised as one of the buttons pressed 10 21 LEDs This will provide two LED outputs to be used under application control as part of a human machine interface where necessary E g HEATING ENABLED and HOT WATER ENABLED 10 22Expansion This function will provide an expansion interface A second connector will provide a TTL level UART with the full complement of hand shaking lines to allow the connection of AT modems Methods This will use a 10 way 0 1 shrouded header in a UEXT configuration Copyright 2014 DSL Page 28 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification The pin out of this connector will be as follows 7 3 3V 2 GND 3 TTLUART TXD 4 TTL UART RXD 5 12C SCL 6 12C SDA I 7 SPI MISO 8 SPI MOSI 9 SPI SCK 10 SPI CSn This UART will use a 10 way 0 1 shrouded header The pin out of this connector will be as follows T DCD EM DSR 3 RXD 4 RTS 5 TxD JM CTS 7 DTR 8 Ri 9 GND 10 GND 10 231n Circuit Debug Interface The microcontroller flash can be programmed via the JTAG SWD port on the devic
41. t with an 11 bit identifier to 0x101 The AMPIC will reply with the string AMPIC The LAN port will be verified by connecting to a 100 speed Ethernet network with DHCP server Correct communication will be verified by ensuring that an IP address has been leased to the AMPIC via the menu The USB port will be verified in host mode by connecting a USB keyboard and using this to drive the menu Right Arrow or ENTER keys SELECT Left Arrow MENU Up Arrow Up Down Arrow Down Each analogue input will be independently driven using a 1 5V and adjustable voltage divider The menu reading for each will be verified using a digital multi meter The 4 20mA receiver will be driven using a UKAS Calibrated mA Loop Calibrator in steps of 1mA from 4mA to 20mA and the value verified within 1 using the menu The digital inputs will be controlled using external switches and the current state verified using the menu The digital outputs will be independently controlled using the menu and their state verified using external LEDs The relays will be energised using the menu and the state measured using a multi meter Page 34 Copyright 2014 DSL Document No 106 062 Issue 1 1 DSL AMPIC Design Specification Copyright 2014 DSL Page 35 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 12 2Production testing All printed circuit boards PCBs for production units will be bare board tested A
42. tions if fitted When termination resistors are fitted the loading effect of these is greater than the nodes which have a typical load of 12kQ per node This means that the bias resistor values are approximately 6850 regardless of the number of nodes When termination is not fitted the bias resistors can vary from 122kQ for two nodes to 4 5kQ for 32 nodes Bias resistors can be added at any point on the network or can be split among multiple nodes The parallel combination of all bias resistors on a network should be equal to or less than the biasing requirements To allow use of this product in many different networks bias resistors will not be included although provision will be added should bias resistors be necessary in the future 14 2CAN bus Termination ISO 11898 2 describes the electrical implementation formed from a multi dropped single ended balanced line configuration with resistor termination at each end of the bus In this configuration a dominant state is asserted by one or more transmitters switching the CAN to supply OV and simultaneously switching CAN to the 5V bus voltage thereby forming a current path through the resistors that terminate the bus As such the terminating resistors form an essential component of the signalling system and are included not just to limit wave reflection at high frequency During a recessive state the signal lines and resistor s remain in a high impedances state with respect to both rails V
43. tput GPIO for o LCD character display o Push button inputs o LED outputs o General application use e JTAG interface for debug support and application programming Oo oO 0 O Use of specific components This should use a Texas Instruments TIVA ARM Cortex M4 Microcontroller 10 2 1 SRAM This function will provide temporary data storage for the application program running on the Microcontroller Methods The Texas Instruments TIVA ARM Cortex M4 Microcontroller family include devices with between 12KB and 256KB of SRAM S Support for analogue comparators should be provided where possible 7 Support for QEI and PWM should be provided where possible Copyright 2014 DSL Page 18 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 10 2 2 Flash This function will provide program storage for the application Methods The Texas Instruments TIVA ARM Cortex M4 Microcontroller family include devices with between 32KB and 1024KB of flash These devices can also include TIVAware software in ROM which provides royalty free functions for controlling the microprocessor s peripherals reducing the application flash requirements 10 3 TIA 232 F compatible serial network This function will provide the TIA 232 F compatible transceiver No handshaking lines will be implemented Methods This device will be provided with a vertically mounted 3 way screw terminal The pin out of this con
44. y with the requirements of this document These deviations must be agreed with the customer Copyright 2014 DSL Page 36 Document No 106 062 Issue 1 1 DSL AMPIC Design Specification 13 Documentation 13 1 Implementation Documentation All design steps will be documented Thus any technological or implementation specifications will be formally documented All documents and calculations used to develop a solution will be included The design will be verified at all stages and documents used for verification and validation will be signed and retained 13 2Manufacturing Pack The following documents will be supplied for manufacturing the product e Full parts list e Artwork in the form of extended Gerber Files in RS274X format e List of programmed parts with object file s source file s and documentation of the programming hardware and software necessary e PCB and programmed parts labelling instructions e Any additional documentation required to manufacture and assemble electronic circuits such as cleaning requirements e Assembly drawings e Cable drawings e Test procedure including software required to test Following initial manufacture any modifications or changes made to affect functionality reliability or manufacturability will be documented using an engineering change note or additional work instruction 13 3 User Manual s A User Manual will be supplied for this system It will fully describe the completed
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