MCP3913 ADC Evaluation Board for 16
Contents
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3. DOGHOS INGO jo v PHS 55909 unl __ cl0C SUP p emn 19qunN ynm Ed ponoddv pavog YAY I6 dOW Bury 31010 sponosddy JON ueupy wed poxoouo a ainog2iw CY comp zwa V G X 20 091 1 AW gir a 2 v ponoiddy wonduosoq 42 K10 SIH UOISIAOY 50 090 090 avo ao ao ao anyo ai AT d 0 Ki Gee aee aee aee aee 090 090 5090 Vo AFINGOW Wid SLLXINCEOId DS50005224A page 23 2013 Microchip Technology Inc 9 2013 Microchip Technology Inc SCHEMATIC LCD AND UART WIOYWIRBIV MA A 2001496 TETSU ASN S jo 6 WS Wd 95 90 9 SWIL 10 osna 1900 WII pousisaq ponoaddy pavog 16 dOW Bury 81010 om md POPOD dIH2OH2IW area umed asn AS LYA 00zzdOW 3 gt ans noua 8 i NS IU
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5. ee N C22C23 C24 e 21 7 eet C20 mm o 2013 Microchip Technology Inc DS50005224A page 27 MCP3913 ADC Evaluation Board for 16 Bit MCUs User s Guide NOTES DS50005224A page 28 2013 Microchip Technology Inc MICROCHIP MCP3913 ADC EVALUATION BOARD FOR 16 BIT MCUs USER S GUIDE Appendix B Bill of Materials BOM TABLE B 1 BILL OF MATERIALS BOM Qty Reference Description Manufacturer Part Number 46 C1 C2 C4 Cap cer 0 1uF 16V 10 X7R 0603 TDK Corp C1608X7R1C104K C5 C8 C9 C10 C11 C12 C14 C16 C18 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C61 C64 C65 C66 C67 3 1 C44 C45 cer 10uF 10V 20 X7R SMD 1206 TDK Corp C3216X7R1A106M 1 C15 Cap Tant 10uF 20V 1096 2 1 Ohm Size B AVX Corp TAJB106K020RNJ 1 C17 Cap cer 10uF 10V X7R 20 1206 TDK Corp C3216X7R1A106M 0 C19 C20 C21 DO NOT POPULATE cer 0 1uF TDK Corp C1608X7R1C104K C22 C23 C24 16V 10 X7R 0603 C57 C58 C59 C60 2 C25 C26 cer 22pF 50V 5 0603 TDK Corp C1608C0G1H220J 2 C6 C7 Cap cer 15pF 50V 5 NPO SMD 0603 Yageo Corp CCO603JRNPO9BN150 2 C62 cer 1uF 10V X7R 20 0603 TDK Corp C
6. 2013 Microchip Technology Inc MICROCHIP MCP3913 ADC Evaluation Board for 16 Bit MCUs User s Guide DS50005224A Note the following details of the code protection feature on Microchip devices Microchip products meet the specification contained in their particular Microchip Data Sheet Microchip believes that its family of products is one of the most secure families of its kind on the market today when used in the intended manner and under normal conditions There are dishonest and possibly illegal methods used to breach the code protection feature All of these methods to our knowledge require using the Microchip products in a manner outside the operating specifications contained in Microchip s Data Sheets Most likely the person doing so is engaged in theft of intellectual property Microchip is willing to work with the customer who is concerned about the integrity of their code Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code Code protection does not mean that we are guaranteeing the product as unbreakable Code protection is constantly evolving We at Microchip are committed to continuously improving the code protection features of our products Attempts to break Microchip s code protection feature may be violation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your software or other copyrighted work you may
7. setting the ADC sample rate through the use of the output compare module OC1 To use this feature make the following jumper change to the MCP3913 Digital I O header block CLKOUT OO XTAL CLKIN XTAL CLKIN FIGURE 2 3 ADC Clock Selection Jumpers Clock from MCU The frequency of the OC1 output is based on the PR1 bit settings in the firmware 2 2 ANALOG INPUT STRUCTURE Six differential input paths allow external signal sources to be easily connected to the MCP3913 inputs Screw terminal connectors J1 J4 J7 J21 J23 J25 J27 and J29 are 3 pin connectors that act as both screw type and clip on post connectors Note use a screw terminal connector as a post connector pull up the blue plastic top to access the posts The connectors J1 J4 J7 J21 J23 and J25 can be used to force either channel from a differential to single ended configuration R4 and R11 on CHO R19 and R21 on CH1 R18 and R65 on CH2 R69 and R71 on CH3 R75 and R77 on and R81 and RR83 on CH5 act as locations for burden resistor connectors for any current transformer inputs O eS DS50005224A page 14 2013 Microchip Technology Inc Hardware Description 2 3 UNIVERSAL SERIAL BUS USB The MCP3913 ADC Evaluation Board for 16 Bit MCUs also contains a USB connection for connecting the evaluation board to a PC On the board
8. Fax 86 755 8203 1760 China Wuhan Tel 86 27 5980 5300 Fax 86 27 5980 5118 China Xian Tel 86 29 8833 7252 Fax 86 29 8833 7256 China Xiamen Tel 86 592 2388138 Fax 86 592 2388130 China Zhuhai Tel 86 756 3210040 Fax 86 756 3210049 ASIA PACIFIC India Bangalore Tel 91 80 3090 4444 Fax 91 80 3090 4123 India New Delhi Tel 91 11 4160 8631 Fax 91 11 4160 8632 India Pune Tel 91 20 3019 1500 Japan Osaka Tel 81 6 6152 7160 Fax 81 6 6152 9310 Japan Tokyo Tel 81 3 6880 3770 Fax 81 3 6880 3771 Korea Daegu Tel 82 53 744 4301 Fax 82 53 744 4302 Korea Seoul Tel 82 2 554 7200 Fax 82 2 558 5932 or 82 2 558 5934 Malaysia Kuala Lumpur Tel 60 3 6201 9857 Fax 60 3 6201 9859 Malaysia Penang Tel 60 4 227 8870 Fax 60 4 227 4068 Philippines Manila Tel 63 2 634 9065 Fax 63 2 634 9069 Singapore Tel 65 6334 8870 Fax 65 6334 8850 Taiwan Hsin Chu Tel 886 3 5778 366 Fax 886 3 5770 955 Taiwan Kaohsiung Tel 886 7 213 7828 Fax 886 7 330 9305 Taiwan Taipei Tel 886 2 2508 8600 Fax 886 2 2508 0102 Thailand Bangkok Tel 66 2 694 1351 Fax 66 2 694 1350 EUROPE Austria Wels Tel 43 7242 2244 39 Fax 43 7242 2244 393 Denmark Copenhagen Tel 45 4450 2828 Fax 45 4485 2829 France Paris Tel 33 1 69 53 63 20 Fax 33 1 69 30 90 79 Germany Munich Tel 49 89 627 144 0 Fax 49 89 627 144 44 Italy Milan Tel 39 0331 742611 Fax 39
9. there is an MCP2200 USB to UART converter that creates a virtual COMM port on the PC The MCP3913 ADC Evaluation Board for 16 Bit MCUs also features an RS 232 connector just in case it is required The RS 232 line driver is connected to the same UART pins of the MCU For this reason a 3 pin jumper J16 is present on the evaluation board to select which serial communication will be used USB or RS 232 The following figure summarizes the connections between the ADC MCU USB to serial converter and the RS 232 line driver USB PIM MCP3913 MCP2200 Module ADC USB TX G RG6 SCK1 SCK iue RX RFS U TX RG7 ADC_MISO SDO RG8 ADC MOSI SDI RS 232 Driver RFA U2RX RS 232 RX Cum TX FIGURE 2 4 USB Block Diagram The MCP2200 is powered from the USB with 5V The Q1 transistor see Appendix is used to disconnect the board from the PC when it is powered down to avoid power consumption By changing the jumper J9 setting the user can select the source of the power supply for the board to be either 5V derived from the USB or an external 9V power supply Since the PIC24F runs at 3 3V a level shifter was used to modify the signal level to 5V as required by the MCP2200 this is done with U11 see Appendix A The 7 3728 MHz value of the crystal is required to achieve the correct baud rate values f
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11. 2013 Microchip Technology Inc DS50005224A page 7 MCP3913 ADC Evaluation Board for 16 Bit MCUs User s Guide CONVENTIONS USED IN THIS GUIDE This manual uses the following documentation conventions DOCUMENTATION CONVENTIONS Description Represents Examples Arial font Italic characters Referenced books MPLAB IDE User s Guide Emphasized text is the only compiler Initial caps A window the Output window A dialog the Settings dialog A menu selection select Enable Programmer Quotes A field name in a window Save project before build dialog Underlined italic text with A menu path File gt Save right angle bracket Bold characters A dialog button Click OK A tab Click the Power tab N Rnnnn A number in verilog format 4400010 2 hF1 where N is the total number of digits R is the radix and n is a digit Text in angle brackets lt gt A key on the keyboard Press Enter F1 Courier New font Plain Courier New Sample source code define START Filenames autoexec bat File paths 18 Keywords asm endasm static Command line options Opa Bit values 0 1 Constants OxFF A Italic Courier New A variable argument file o Where file can be any valid filename Square brackets Optional arguments 18 options file options Curly brackets and pipe Choice of mutually exclusive errorlevel 011 chara
12. Tel 678 957 9614 Fax 678 957 1455 Boston Westborough MA Tel 774 760 0087 Fax 774 760 0088 Chicago Itasca IL Tel 630 285 0071 Fax 630 285 0075 Cleveland Independence OH Tel 216 447 0464 Fax 216 447 0643 Dallas Addison TX Tel 972 818 7423 Fax 972 818 2924 Detroit Farmington Hills MI Tel 248 538 2250 Fax 248 538 2260 Indianapolis Noblesville IN Tel 317 773 8323 Fax 317 773 5453 Los Angeles Mission Viejo CA Tel 949 462 9523 Fax 949 462 9608 Santa Clara Santa Clara CA Tel 408 961 6444 Fax 408 961 6445 Toronto Mississauga Ontario Canada Tel 905 673 0699 Fax 905 673 6509 ASIA PACIFIC Asia Pacific Office Suites 3707 14 37th Floor Tower 6 The Gateway Harbour City Kowloon Hong Kong Tel 852 2401 1200 Fax 852 2401 3431 Australia Sydney Tel 61 2 9868 6733 Fax 61 2 9868 6755 China Beijing Tel 86 10 8569 7000 Fax 86 10 8528 2104 China Chengdu Tel 86 28 8665 5511 Fax 86 28 8665 7889 China Chongqing Tel 86 23 8980 9588 Fax 86 23 8980 9500 China Hangzhou Tel 86 571 2819 3187 Fax 86 571 2819 3189 China Hong Kong SAR Tel 852 2943 5100 Fax 852 2401 3431 China Nanjing Tel 86 25 8473 2460 Fax 86 25 8473 2470 China Qingdao Tel 86 532 8502 7355 Fax 86 532 8502 7205 China Shanghai Tel 86 21 5407 5533 Fax 86 21 5407 5066 China Shenyang Tel 86 24 2334 2829 Fax 86 24 2334 2393 China Shenzhen Tel 86 755 8864 2200
13. 013 Microchip Technology Inc DS20005224A page 3 MCP3913 ADC Evaluation Board for 16 Bit MCUs User s Guide NOTES DS20005224A page 4 2013 Microchip Technology Inc MCP3913 ADC EVALUATION BOARD MICROCHIP FOR 16 BIT MCUs USER S GUIDE Table of Contents ijr m 7 NI TA ren Me MM E MER 7 DOCUMENT LAYOUT e itt eerie ae teta Pe n e PR E de ls tt de 7 Conventions Used in this Guide ss 8 Recommended 8 ec 9 The Microchip Web Site oui eret pee e o obo 9 CUSIOMEE S POUT doe 9 Document Revision HISIOTy iir e Pee cin a cet eate 9 Chapter 1 Product Overview INEO aT 11 1 2 What the MCP3913 ADC Evaluation Board for 16 Bit MCUs Contains 12 Chapter 2 Hardware Description 2 1 PIM Module MCP3913 Connection and Peripheral Usage Overview 13 2 2 Analog Input cuoc texere nere Ee E EDEN eet ERR EMEN 14 2 3 Universal Serial Bus USB 15 Chapter 3 Firmware 3 1 PIC24FJ256GA110 Firmware Description 2 17 32 Data 17 3 3 UART Communication Protocol 18 Appendix A Schematics and Layouts A Mtroduetion Asien iain A iin ai elation ie 19 A2 Schematic POWDE 20 A 3 Schematic ADG imt 21 A 4 Schematic
14. 0331 466781 Netherlands Drunen Tel 31 416 690399 Fax 31 416 690340 Spain Madrid Tel 34 91 708 08 90 Fax 34 91 708 08 91 UK Wokingham Tel 44 118 921 5869 Fax 44 118 921 5820 08 20 13 DS50005224A page 32 2013 Microchip Technology Inc
15. 1608X7R1A105M 1 D1 Diode std rec 1A 600V SMA ON Semiconductor MRA4005T3G 7 J1 J3 J4 J7 Conn hdr Male 100 2x3 pos vert FCI 67996 206HLF J21 J23 J25 1 J10 Conn power jack male 2 5 MM CLSD CUI Inc PJ 002B 1 J11 Conn hdr 2 54 male 1x6 TH R A FCI 68016 106HLF 1 J14 Conn D sub rcpt R A 9 pos 15 GOLD TE Connectivity Ltd 1734354 2 1 J15 Conn Recept mini SMD R A 5 pos Hirose Electric Co UX60 MB 5ST Ltd 1 J16 Conn hdr male 100 1x3 pos vert FCI 68000 103HLF 1 J17 Mini edge card socket 1 mm pitch vertical Samtec Inc MEC1 160 02 L D A 6 J2 J5 J20 422 Conn term blk plug 6A 3 5 MM pos Keystone 8723 J24 J26 mates with 8724 hdr 24 pin Electronics Corp 0 J27 J29 DO NOT POPULATE Conn hdr male Tyco Electronics Hdr M 2x3 vertical 100 2x3 pos vertical Note 1 The components listed in this Bill of Materials are representative of the PCB assembly The released BOM used in manufacturing uses all RoHS compliant components 2013 Microchip Technology Inc DS50005224A page 29 MCP3913 ADC Evaluation Board for 16 Bit MCUs User s Guide TABLE B 1 BILL OF MATERIALS BOM Qty Reference Description Manufacturer Part Number 0 428 430 DO NOT POPULATE Conn Term blk Keystone 8723 plug 6A 3 5 MM 3 pos mates with 8724 Electronics Corp hdr 24 pin 4 J6 J12 J13 Conn hdr male 100 1x2 pos vertical
16. 224A page 19 MCP3913 ADC Evaluation Board for 16 Bit MCUs User s Guide SCHEMATIC POWER A 2 9 Woy UnpIV 20 5 Jo 472909 oump T9POOWY 1oqumv pavog 104 16 dIW wq Bury 31219 uddy dlH2O0H2IIN JO oou nosadoq uepsog Kg umi alaydsiuioy uodung posoxddy Ex Tondo WOISTADY SPSZ A FASZA bd sa ixawe AND L Q NIA NIAG 5 Ast LES er LL n att 4 9051 AOL 090 anyo 12 212 L 19 aua g 222 en 9024 AOL 090 anyo 55 45 NIA 72855081404 en AGENT vn NI AG 2013 Microchip Technology Inc DS50005224A page 20 Schematics and Layouts SCHEMATIC ADC A 3
17. FCI 77311 118 02LF J19 1 J8 Conn hdr male 100 2x8 pos vertical FCI 68602 116HLF 1 49 Conn hdr male 100 2x2 pos vertical FCI 68602 204HLF 1 L1 Ferrite 300 MA 500 mOhm 1806 SMD Laird Technologies LI1806C151R 10 1 LCD1 LCD cog char 2X16 Transfl Shenzhen Multi NHD C0216 sight Display Co CIZ FSW FBW 3V3 Ltd 2 LD1 LD2 LED Smart LED green 570 nm 0603 OSRAM Opto LG L29K G2J1 24 Z Semiconductors GmbH 1 LD3 LED Smart LED red 630 nm 0603 OSRAM Opto LS L29K G1J2 1 0 2 R18 Z Semiconductors GmbH 2 LD4 LD5 LED 5 mm red 640 nm 20 mcd 2 mA Kingbright Corp WP7113LSRD 1 LD6 LED 2X1 2 mm red green wtr clr SMD Kingbright Corp APHBM2012SURKCGKC 5 PAD1 Mech HW rubber pad Bumpon 3M SJ 5003 BLACK Hemisphere 0 44 x 0 20 black 1 Q1 MOSFET P 12V 850 mA 290 mW SC 70 3 Vishay Siliconix SH 307EDL T1 GES3 0 R1 R23 DO NOT POPULATE Res TKF 1k 1 Panasonic ECG ERJ SEKF1001V R24 R64 R66 1 10W SMD 0603 R70 R72 R76 R78 R82 R84 R86 R87 R88 R89 R90 R91 R92 R93 R94 R95 R96 R97 2 820 R42 Res 1M Ohm 1 10W 1 0603 SMD Panasonic ECG ERJ 3EKF1004V 20 R25 R26 R29 Res 1k Ohm 1 10W 5 0603 SMD Panasonic ECG ERJ 3GEYJ102V R30 R35 R37 R45 R46 R47 R49 R50 R51 R52 R55 R56 R57 R59 R60 R63 R98 2 R27 R382 Res 0 Ohm 1 10W 0603 SMD Panasonic ECG ERJ 3GEYOROOV 2 828 R62 Res 10k Ohm 1 10W 5 0603 SMD Panasonic ECG ERJ 3GEYJ103V 24 R3 R4 R11 Res TKF 1k 1 1 10W SMD 0603 Panaso
18. G S 230 pin socket 1 U11 IC Volt level translator US 8 Texas Instruments TXS0102DCUR 4 012 013 014 IC SRAM SPI 1024K 2 5V TSSOP 8 Microchip 23LC1024 I ST U15 Technology Inc 1 U2 IC LDO reg 500 MA 3 3V SOT 223 3 Microchip MCP1825S 3302E DB Technology Inc 1 U3 IC reg LDO 150 mA 3 3V SOT 223 3 Microchip MCP1754ST 3302E DB Technology Inc 1 U4 IC reg LDO 800 MA 5V SOT 223 National LM1117MPX 5 0 NOPB Semiconductor 1 U5 IC 6 Ch AFE QFN 40 Microchip MCP3913 Technology Inc 2 U6 U7 Photocoupler Trans out 4 minipak Avago HCPL 181 00CE Technologies 1 108 IC line driver receiver 5232 20 TSSOP Texas Instruments SN75C3223PWR 1 U9 IC USB to UART SSOP 20 Microchip MCP2200 I SS Technology Inc 1 X1 Crystal 10 MHz 18 pF HC49 SMD B Abracon ABLS 10 000MHZ B4 T Corporation 1 X2 Crystal 7 3728 MHz 18 pF HC49 SMD B Abracon ABLS 7 3728MHZ B4 T Corporation 1 X3 Resonator 12 MHz 0 1 SMD CSTCE G Murata Electronics CSTCE12M0G15L99 RO Note 1 The components listed in this Bill of Materials are representative of the PCB assembly The released BOM used in manufacturing uses all RoHS compliant components 2013 Microchip Technology Inc DS50005224A page 31 MICROCHIP Worldwide Sales and Service AMERICAS Corporate Office 2355 West Chandler Blvd Chandler AZ 85224 6199 Tel 480 792 7200 Fax 480 792 7277 Technical Support http Awww microchip com support Web Address www microchip com Atlanta Duluth GA
19. Microcontroller 22 A 5 Schematic PIM Module ss 23 AG Schematic LCD and UART aset ee tec o etse diea aaa 24 A 7 Board Top Trace and Silk 25 A 8 Board Bottom Trace and Bottom 5 25 9 Board Layer 42 GND 26 A 10 Board Layer 3 VDD ete epe Rte 26 A 11 Board Top Silk and Pads i t te peti vade Ree Pkt 27 12 Board Bottom Silk and Pads tere 27 Appendix B Bill of Materials BOM Worldwide Sales and Service ecrire iieri etuer rure cancun e hann ana nan nanunua nunuzi 32 2013 Microchip Technology Inc 0 50005224 5 MCP3913 ADC Evaluation Board for 16 Bit MCUs User s Guide NOTES DS50005224A page 6 2013 Microchip Technology Inc MCP3913 ADC EVALUATION BOARD MICROCHIP FOR 16 BIT MCUs USER S GUIDE Preface NOTICE TO CUSTOMERS All documentation becomes dated and this manual is no exception Microchip tools and documentation are constantly evolving to meet customer needs so some actual dialogs and or tool descriptions may differ from those in this document Please refer to our web site www microchip com to obtain the latest documentation available Documents are identified with DS number This number is located on the bottom of each page in front of the page number The numbering convention for the D
20. NS This MCP3913 ADC Evaluation Board for 16 Bit MCUs kit includes MCP3913 ADC Evaluation Board for 16 Bit MCUs Part number ADM00522 PIC24FJ256GA110 PIM USB Cable Important Information Sheet DS50005224A page 12 2013 Microchip Technology Inc MCP3913 ADC EVALUATION BOARD MICROCHIP FOR 16 BIT MCUs USER S GUIDE Chapter 2 Hardware Description 21 MODULE MCP3913 CONNECTION AND PERIPHERAL USAGE OVERVIEW The MCP3913 ADC Evaluation Board for 16 Bit MCUs contains a 100 pin PIM socket compatible with Microchip s PIM modules The system comes with one PIM module the PIC24FJ256GA110 RA9 10 amp LD2 103 M RD11 12 13 CONTROL SWITCHES X3 RF4 U2RX RF5 U2TX UART SERIAL TO PC COMMUNICATION OC1 RG6 DGND DVDD OSCiw AGND OSC2 AVDD Y y Modulator Clock Generation Output Phase Correction Translation gt Block Current Boost INT gt Circuit Vre RAS ADC RESET gt 5 ya 4 Delta Sigma 1 RAM ADC DR 4 4 gs RG9 ADC CS CES 2 SCK SPI Serial o RG6 ADC_SCK a gt Interface RG7 ADC 5 500 2 a uc SDI e te enr T RG8 ADC MOSI gt gt Os Modula
21. S number is DSXXXXXA where XXXXX is the document number and A is the revision level of the document For the most up to date information on development tools see the MPLAB IDE online help Select the Help menu and then Topics to open a list of available online help files INTRODUCTION This chapter contains general information that will be useful to know before using the MCP3913 ADC Evaluation Board for 16 Bit MCUs Items discussed in this chapter include Document Layout Conventions Used in this Guide Recommended Reading The Microchip Web Site Customer Support Document Revision History DOCUMENT LAYOUT This document describes how to use the MCP3913 ADC Evaluation Board for 16 Bit MCUs as a development tool to emulate and debug firmware a target board The manual layout is as follows Chapter 1 Product Overview Provides important information about the MCP3913 ADC Evaluation Board for 16 Bit MCUs hardware Chapter 2 Hardware Description Provides information about the evaluation board software Chapter 3 Firmware Describes the MCP3913 ADC Evaluation Board for 16 Bit MCUs firmware Appendix A Schematics Layouts Shows the schematic and board layouts for the MCP3913 ADC Evaluation Board for 16 Bit MCUs Appendix Bill of Materials BOM Lists the parts used to build the MCP3913 ADC Evaluation Board for 16 Bit MCUs
22. T 099 798 090 oF en gt u 059 lo i vang S94 wa vano uu wano ano igno Nm bon 090 Ho 5090 675 2000 80 ET ue j anro anro e000 030 9 090 00 coco to 0 45 t090 224 5090 ey pa sr su vang vano ae VND ans atc vee s 5090 e uso lt gt 5090 SL ate pit CONSE IA or 1090 090 E a vang t ta l ja j VAND H GND 6090 Ho poxoddy EU wonduossq yu K10 STH UOISIAOY 900 u 9 s 2 DS50005224A page 21 2013 Microchip Technology Inc 9 6 2 1 Woy UAT AA 2OdHOSTONW IH 0 WAS Wd 55 90 9 ounp 10 EL YUAN TIHOONGV 2qumN sag MI 52 EU 4 pavog paq 16 dOW Bury awa panoaddy JON dIH20H2IW 142 nosadoq uepsog om eq umuq anyo anyo ze cu atc age age age IND 090 nyo 6425 2584 FISSA 2018 ano _ OIS TIOH E COS 1018 05 0015 5 5
23. between them at the current baud rate will cause the MCP2200 to lose data Note The PIC24FJ256GA110 must be Rev A5 or newer in order for this code example to work 3 2 DATA ACQUISITION External Interrupt 2 is used for detecting the end of conversion on the MCP3913 In the INT2 Interrupt the data samples are read from the ADC using SPI When a new buffer begins to be read Timer4 is started This is set as a 32 bit timer together with Timer5 It will be stopped when the buffer is full and is used to measure the sampling speed Before reading the date samples the MCU investigates the address loop setting READ 1 0 bits in the STATUSCOM register and adjusts the read sequence accord ingly when the address is not incremented automatically in hardware the MCU has to do that in firmware leading to a longer read sequence The acquired samples are written in six long vectors created in the RAM of the MCU The six vectors hold the first second and third byte from both channels The vectors have a length of 2048 The value of Timer 4 and the values of the other registers inside the ADC are stored in a vector called internal registers 26 2013 Microchip Technology Inc DS50005224A page 17 MCP3913 ADC Evaluation Board for 16 Bit MCUs User s Guide 3 3 UART COMMUNICATION PROTOCOL The serial connection is used to send the acquired data to the PC at a speed of 921 6 kbaud and the MCP2200 is used for the UART to USB co
24. cesses and procedures are for its PIC MCUs dsPIC DSCs code hopping devices Serial EEPROMs microperipherals nonvolatile memory and analog products In addition Microchip s quality system for the design and manufacture of development systems is ISO 9001 2000 certified DS50005224A page 2 2013 Microchip Technology Inc Object of Declaration MCP3913 ADC Evaluation Board for 16 Bit MCUs User s Guide EU Declaration of Conformity This declaration of conformity is issued by the manufacturer The development evaluation tool is designed to be used for research and development in a laboratory environment This development evaluation tool is not a Finished Appliance nor is it intended for incorporation into Finished Appliances that are made commercially available as single functional units to end users under EU EMC Directive 2004 108 EC and as supported by the European Commission s Guide for the EMC Directive 2004 108 EC 8 February 2010 This development evaluation tool complies with EU RoHS2 Directive 2011 65 EU For information regarding the exclusive limited warranties applicable to Microchip products please see Microchip s standard terms and conditions of sale which are printed on our sales documentation and available at www microchip com Signed for and on behalf of Microchip Technology Inc at Chandler Arizona USA KA 6 J 20 1 Derek Carlson Date VP Development Tools 2
25. crochip products can receive assistance through several channels Distributor or Representative Local Sales Office Field Application Engineer FAE Technical Support Customers should contact their distributor representative or field application engineer FAE for support Local sales offices are also available to help customers A listing of sales offices and locations is included in the back of this document Technical support is available through the web site at http support microchip com DOCUMENT REVISION HISTORY Revision A October 2013 Initial release of this document 2013 Microchip Technology Inc DS50005224A page 9 MCP3913 ADC Evaluation Board for 16 Bit MCUs User s Guide NOTES DS50005224A page 10 2013 Microchip Technology Inc MCP3913 ADC EVALUATION BOARD MICROCHIP FOR 16 BIT MCUs USER S GUIDE Chapter 1 Product Overview 1 1 OVERVIEW The MCP3913 ADC Evaluation Board for 16 Bit MCUs system provides the opportunity to evaluate the performance of the MCP3913 six channel Analog Front End AFE It also provides a development platform for 16 bit microcontroller based applications using the existing 100 pin PIC microcontroller Plug in Module PIM systems that are compatible with the Explorer 16 and other high pin count PIC device based demo boards The system comes with a programmed PIC24FJ256GA110 PIM module that communicates with the Energy Management Utility software for
26. cter arguments an OR selection Ellipses Replaces repeated text var name var name Represents code supplied by void main void user a DS50005224A page 8 2013 Microchip Technology Inc Preface RECOMMENDED READING This user s guide describes how to use MCP3913 ADC Evaluation Board for 16 Bit MCUs Another useful document is listed below The following Microchip document is available and recommended as a supplemental reference resource MCP3913 Data Sheet Six Channel Analog Front End 0520000000 THE MICROCHIP WEB SITE Microchip provides online support via our web site at www microchip com This web site is used as a means to make files and information easily available to customers Accessible by using your favorite Internet browser the web site contains the following information Product Support Data sheets and errata application notes and sample programs design resources user s guides and hardware support documents latest software releases and archived software General Technical Support Frequently Asked Questions FAQs technical support requests online discussion groups Microchip consultant program member listing Business of Microchip Product selector and ordering guides latest Microchip press releases listing of seminars and events listings of Microchip sales offices distributors and factory representatives CUSTOMER SUPPORT Users of Mi
27. data exchange and ADC setup The MCP3913 ADC Evaluation Board for 16 Bit MCUs uses the Energy Management Utility software for evaluation of the MCP3913 via a USB connection to the board A download link for this software can be found on the evaluation board s web page For instructions on the use of this software refer to the supporting documentation included within the application install package 1 1 1 Feature Highlights Six channel ADC MCP3913 output display using serial communication to the PC software interface Simultaneous 57 ksps at OSR32 address loop ALL or 95 dB SINAD at OSR512 performance on MCP3913 System and ADC performance analysis through graphical PC tools showing noise histogram frequency domain FFT time domain scope plot and statistical numerical analysis Robust hardware design with analog grounding and analog digital separation allowing low noise evaluation of the MCP3913 device includes separate power supplies and power planes on a four layer board PICtail M Plus connectors for Explorer 16 daughter board compatibility 2013 Microchip Technology Inc DS50005224A page 11 MCP3913 ADC Evaluation Board for 16 Bit MCUs User s Guide e NE Me x 776 Ce ye 26 IC hs MicROCHIP MCP3913 Eval Board ADMOOS22 710 0 7 NC FIGURE 1 1 MCP3913 Evaluation Board 1 2 WHAT THE MCP3913 ADC EVALUATION BOARD FOR 16 BIT MCUS CONTAI
28. have a right to sue for relief under that Act Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates It is your responsibility to ensure that your application meets with your specifications MICROCHIP MAKES REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORY OR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITS CONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSE Microchip disclaims all liability arising from this information and its use Use of Microchip devices in life support and or safety applications is entirely at the buyer s risk and the buyer agrees to defend indemnify and hold harmless Microchip from any and all damages claims Suits or expenses resulting from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectual property rights QUALITY MANAGEMENT SYSTEM CERTIFIED BY DNV ISO TS 16949 Trademarks The Microchip name and logo the Microchip logo dsPIC FlashFlex KEELOQ KEELOQ logo MPLAB PIC PICSTART PIC logo SST SST Logo SuperFlash and UNI O are registered trademarks of Microchip Technology Incorporated in the U S A and other countries FilterLab Hampshire HI TECH C Linear Active Thermistor MTP SEEVAL and The Embedded Control Solutions Company a
29. nic ECG ERJ SEKF1001V R13 R15 R16 R18 R19 R21 R22 R65 R67 R68 R69 R71 R73 R74 R75 R77 R79 R80 R81 R83 R85 0 R31 R34 DO NOT POPULATE Resistor 10 Ohm Panasonic ECG ERJ 3GEYJ100V 1 10W 5 0603 SMD Note 1 The components listed in this Bill of Materials are representative of the PCB assembly The released BOM used in manufacturing uses all RoHS compliant components DS50005224A page 30 2013 Microchip Technology Inc Bill of Materials BOM TABLE B 1 BILL OF MATERIALS BOM Qty Reference Description Manufacturer Part Number 6 R33 R36 R44 Res 4 7k Ohm 1 10W 5 0603 SMD Panasonic ECG ERJ 3GEYJ472V R48 R53 R58 2 238 R39 Res 2 2k Ohm 1 10W 5 0603 SMD Panasonic ECG ERJ 3GEYJ222V 0 R40 R41 DO POPULATE Resistor 1k Ohm Panasonic ECG ERJ 3GEYJ102V 1 10W 5 0603 SMD 0 R43 DO NOT POPULATE Resistor 1M Ohm Panasonic ECG ERJ 3EKF1004V 1 10W 196 0603 SMD 1 R5 Res 100 Ohm 1 10W 5 0603 SMD Panasonic ECG ERJ 3GEYJ101V 9 R6 R7 R8 RY Res 10 Ohm 1 10W 5 0603 SMD Panasonic ECG ERJ 3GEYJ100V R10 R12 R14 R17 R54 4 SW1 SW2 Switch tact 6 MM 160GF H 4 3 MM Omron Electronics B3S 1000P SW3 SW4 LLC EMC Division 0 01 DO NOT POPULATE Microchip PIC24FJ256GA110 PIC24FUxxxGA110 Technology Inc 1 U10 Four 25 X 1 header 1 27 mm pitch 100 Samtec Inc MTMS 125 01
30. nversion The communication uses handshaking meaning that the board will not send data to the PC unless the board receives a command from the PC The UART transmission is triggered by the output compare module OC2 This allows the data to be transmitted to the PC in short bursts that are separated by a dead time This method of sending data allows the MCP2200 to handle the high throughput If the entire amount of data is sent continuously to the PC at the current baud rate the MCP2200 will not be able to process the data for correct USB transfer After a complete transmission the UART interrupt is enabled by increasing its pri ority while all other interrupts have lower priorities In this interrupt the MCU needs to receive the values of the internal registers as the user is setting them in the PC GUI DS50005224A page 18 2013 Microchip Technology Inc AN MCP3913 ADC EVALUATION BOARD MICROCHIP FOR 16 BIT MCUs USER S GUIDE Appendix A Schematics and Layouts A 1 INTRODUCTION This appendix contains the following schematics of the MCP3913 ADC Evaluation Board for 16 Bit MCUs e Schematic Power Schematic ADC Schematic Microcontroller MCU Schematic PIM Module Schematic LCD and UART Board Top Trace and Top Silk Board Bottom Trace and Bottom Silk Board Layer 2 GND Board Layer 3 V pp Board Top Silk and Pads Board Bottom Silk and Pads 2013 Microchip Technology Inc DS50005
31. or higher speed This design uses a baud rate of 921 6 kbaud and for this baud rate the register U1BRG value is 3 decimal NENNEN 2013 Microchip Technology Inc 0 50005224 15 MCP3913 ADC Evaluation Board for 16 Bit MCUs User s Guide NOTES DS50005224A page 16 2013 Microchip Technology Inc MCP3913 ADC EVALUATION BOARD MICROCHIP FOR 16 BIT MCUs USER S GUIDE Chapter 3 Firmware 3 1 PIC24FJ256GA110 FIRMWARE DESCRIPTION 3 1 1 MCU Initialization The microcontroller used for the code example is the 16 bit XLP with 16 MIPS PIC24FJ256GA110 The MCU has remappable pins and output compare with a dedicated time base The MCU uses a 7 3278 MHz crystal for the clock and the internal PLL to increase the frequency by four times The uncommon crystal value was chosen to obtain the correct baud rate even for high baud rates The remappable pins are configured to make the PIM compatible with the Explorer 16 development board The MCP3913 is linked with the MCU through the SPI1 port The ADC clock is given by OC1 The DR pin of the MCP3913 is tied to external Interrupt 2 Serial data transmission is carried out through the UART2 module For transmission OC2 interrupt is used for receiving the _U1RX Interrupt is used The UART commu nication speed is 921 6 kbaud OC2 is used for the serial transmission to create short bursts of data that can be processed by the MCP2200 Sending too many characters with no time
32. re registered trademarks of Microchip Technology Incorporated in the U S A Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries Analog for the Digital Age Application Maestro BodyCom ChipKIT chipKIT logo CodeGuard dsPICDEM dsPICDEM net dsPlCworks dsSPEAK ECAN ECONOMONITOR FanSense HI TIDE In Circuit Serial Programming ICSP Mindi MiWi MPASM MPF MPLAB Certified logo MPLIB MPLINK mTouch Omniscient Code Generation PICC PICC 18 PICDEM PICDEM net PICtail REAL ICE rfLAB Select Mode SQI Serial Quad I O Total Endurance TSHARC UniWinDriver WiperLock ZENA and Z Scale are trademarks of Microchip Technology Incorporated in the U S A and other countries SQTP is a service mark of Microchip Technology Incorporated in the U S A GestlC and ULPP are registered trademarks of Microchip Technology Germany Il GmbH amp Co KG a subsidiary of Microchip Technology Inc in other countries All other trademarks mentioned herein are property of their respective companies 2013 Microchip Technology Incorporated Printed in the U S A All Rights Reserved ea Printed on recycled paper ISBN 978 1 62077 520 2 Microchip received ISO TS 16949 2009 certification for its worldwide headquarters design and wafer fabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in California and India The Company s quality system pro
33. tor CH5 zo na PIM Module MCP3913 FIGURE 2 1 Digital Connection Overview PIM MCP3913 Connections 2013 Microchip Technology Inc DS50005224A page 13 MCP3913 ADC Evaluation Board for 16 Bit MCUs User s Guide Ports A D and G are used for signals such as push buttons output LEDs CS and MCLR for the MCP3913 data mode setting Output Compare 1 is used for clock generation in the MCP3913 Serial communication is achieved through the MSSP module 1 The MCP3913 device is an AFE with six ADCs featuring a second order modulator and a third order sinc filter plus a first order sinc filter used for higher OSR s values The delta sigma A D converters have an adjustable oversampling ratio The CLKIN pin of the MCP3913 is the oversampling clock MCLK input The MCP3913 ADC Evaluation Board for 16 Bit MCUs offers two different options for the MCP3913 master clock MCLK The default setting for the ADC internal clock is an external clock driven by the MCU 2 1 1 Using the Crystal X1 The MCP3913 ADC Evaluation Board for 16 Bit MCUs is populated with a 10 MHz crystal used as a clock source by placing jumpers in the following position on the MCP3913 Digital I O header block CLKOUT XTAL CLKIN XTAL CLKIN OO OC1 FIGURE 2 2 ADC Clock Selection Jumpers External Crystal 2 1 2 Driving the Clock with the PIM Module The PIC MCU can be used to generate the CLKIN MCLK signal for the MCP3913
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