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User’s Manual

85

A

PPENDIX

D. R

ABBIT

N

ET

D.1 General RabbitNet Description

RabbitNet is a high-speed synchronous protocol developed by Rabbit to connect periph-
eral cards to a master and to allow them to communicate with each other.

D.1.1 RabbitNet Connections

All RabbitNet connections are made point to point. A RabbitNet master port can only be
connected directly to a peripheral card, and the number of peripheral cards is limited by
the number of available RabbitNet ports on the master.

Figure D-1. Connecting Peripheral Cards to a Master

MASTER

SLAVE

SLAVE

MASTER

SLAVE

Rabbit 3000®

Microprocessor

Straight-through

Ethernet cable

Crossover

Ethernet cable

Straight-through

Ethernet cable

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Summary of Contents for Coyote BL2500

Page 1: ...Coyote BL2500 C Programmable Single Board Computer with Ethernet User s Manual 019 0120_M...

Page 2: ...d Digi International reserves the right to make changes and improvements to its products without providing notice Trademarks Rabbit and Dynamic C are registered trademarks of Digi International Inc Ra...

Page 3: ...3 2 4 Starting Dynamic C 14 2 5 PONG C 15 2 6 Where Do I Go From Here 15 2 7 Using the Coyote In High Vibration Environments 16 Chapter 3 Subsystems 17 3 1 Coyote Pinouts 18 3 1 1 Headers 19 3 2 Indic...

Page 4: ...5 1 TCP IP Connections 59 5 2 TCP IP Sample Programs 61 5 2 1 How to Set IP Addresses in the Sample Programs 61 5 2 2 How to Set Up your Computer s IP Address for a Direct Connection 62 5 2 3 Run the...

Page 5: ...85 D 1 General RabbitNet Description 85 D 1 1 RabbitNet Connections 85 D 1 2 RabbitNet Peripheral Cards 86 D 2 Physical Implementation 87 D 2 1 Control and Routing 87 D 3 Function Calls 88 D 3 1 Stat...

Page 6: ...Coyote BL2500...

Page 7: ...ified configurations Pin compatible RabbitCore modules allow multiple configurations of the Coyote with Ethernet and memory options 1 1 Features Rabbit 3000 microprocessor operating at 29 4 MHz option...

Page 8: ...liminated fewer digital inputs only 16 digital I O with 8 protected and filtered digital inputs and 8 digital outputs sinking up to 200 mA at up to 36 V DC no header J12 no backup battery no RabbitNet...

Page 9: ...used to power the BL2500 An AC adapter is supplied with develop ment kits sold in the North American market If you are using your own power supply it must provide 8 to 40 V DC Demonstration Board with...

Page 10: ...at www rabbit com for further information and complete documentation or contact your Rabbit sales representative or authorized distributor 1 2 3 Connectivity Tools Rabbit also has available additiona...

Page 11: ...7 8 R 8 1 R 8 0 JC U 8 GN D C3 0 R5 0 R5 1 R5 2 R3 1 R4 0 R4 1 R1 7 C1 8 C 16 R2 8 R8 2 R2 6 C1 5 C1 4 C1 3 R2 4 R2 5 U 6 C 28 C 27 R5 6 R7 7 C 35 C 36 C 34 C33 U 9 U 1 0 R 76 U 5 D S1 D S2 D S3 D S4...

Page 12: ...ch can support one peripheral card Distances between a master processor unit and peripheral cards can be up to 10 m or 33 ft The following low cost peripheral cards are currently available Digital I O...

Page 13: ...the BL2500 that do not have the CE mark are not CE compliant Immunity The BL2500 series of single board computers meets the following EN55024 1998 immu nity standards EN61000 4 3 Radiated Immunity EN...

Page 14: ...00 it is the responsibility of the end user to use proper ESD precautions to prevent ESD damage to the BL2500 Safety All inputs and outputs to and from the BL2500 series of single board computers must...

Page 15: ...gainst scratches or short circuits while you are working with the BL2500 G N D J4 J5 GND J6 JA R2 U1 R5 R8 C3 C4 R11 R14 R16 R3 R1 R15 R 13 R12 R9 R10 C 5 R 6 R 7 R4 C2 J1 C1 D1 J2 J7 J8 C8 D3 J10 J 1...

Page 16: ...8 D3 J10 J11 J12 GND RS485 TERMINATION RESISTORS R21 R20 R19 R79 C12 R78 R81 R80 JC U8 GND C30 R50 R51 R52 R31 R40 R41 R17 C18 C16 R28 R82 R26 C15 C14 C13 R24 R25 U6 C28 C27 R56 R77 C35 C36 C34 C33 U9...

Page 17: ...C16 R28 R82 R26 C15 C14 C13 R24 R25 U6 C28 C27 R56 R77 C35 C36 C34 C33 U9 U10 R76 U5 DS1 DS2 DS3 DS4 R27 R71 R70 R66 R67 R58 R55 R49 R48 R47 R46 R43 R42 R44 R45 R35 R34 R33 R32 C21 C20 C19 D9 R29 R30...

Page 18: ...ons to the headers This will protect your BL2500 from inadvertent shorts or power spikes 2 2 1 Hardware Reset A hardware reset is done by unplugging the AC adapter then plugging it back in or by short...

Page 19: ...entation is installed along with Dynamic C and an icon for the docu mentation menu is placed on the workstation s desktop Double click this icon to reach the menu If the icon is missing create a new d...

Page 20: ...hin Dynamic C From the Options menu select Communications Select another COM port from the list then click OK Press Ctrl Y to force Dynamic C to recompile the BIOS If Dynamic C still reports it is una...

Page 21: ...NOTE If you purchased your BL2500 through a distributor or Rabbit partner contact the distributor or partner first for technical support If there are any problems at this point Use the Dynamic C Help...

Page 22: ...1 R59 R63 R64 R68 R74 C32 J 9 R75 R73 R72 R69 R65 R62 R60 R57 R53 Q5 Q1 D6D4 Q2 Q4 D7 Q3 Q6 Q7 D8 D5 U 2 C 1 1 C 7 D2 U3 TVS1 L1 C6 JB RCM1 U 4 J 3 R 3 9 R 3 8 R 3 7 R 3 6 C 1 7 C 2 6 C 2 4 C 2 2 C 2...

Page 23: ...RabbitCore modules take care not to swap the RabbitCore modules since they contain system ID block information and cali bration constants that are unique to the board they were originally installed on...

Page 24: ...19 R15 R17 R22 R27 C14 R9 RP2 C46 C47 R46 R47 RP1 C1 R1 OUT0 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 K Digital Outputs Digital Inputs Power Supply K RS 485 Analog Input Analog Ground Analog Outputs J7 J3 J...

Page 25: ...n 0 156 friction lock connector terminals at J7 and J8 are installed to supply power DCIN and 5 V to the peripheral cards currently being developed for use with the RabbitNet Two 2 pin 0 156 friction...

Page 26: ...ore module has two LEDs next to the RJ 45 Ethernet jack one to indicate an Ethernet link LNK and one to indicate Ethernet activity ACT User programmable LEDs driven by the Rabbit 3000 DS1 PB6 yellow D...

Page 27: ...pacitor Figure 10 Coyote Digital Inputs Pulled Up Factory Default Coyote series boards can be made to order in volume with the digital inputs pulled up to K or pulled down to 0 V Contact your authoriz...

Page 28: ...a K supply is not absolutely required with sinking outputs it is highly recommended to protect against current spikes when driving inductive loads such as relays and solenoids Connect the positive K s...

Page 29: ...ately 8 bits Since the D A converter is able to change the DA0 out put in 3 22 mV steps there are 930 steps over the range from 0 1 V to 3 1 V This repre sents a resolution of more than 9 bits For exa...

Page 30: ...0 ms with a 29 4 MHz Coyote 3 4 2 D A Converters Two D A converter outputs DA0 and DA1 are supplied on the Coyote These are shown in Figure 14 Figure 14 Schematic Diagram of D A Converters The D A con...

Page 31: ...ion of the DA0 or DA1 output depends on the smallest increment of time to change the on off time the time between 3 3 V and 0 V The Coyote uses the Rabbit 3000 s Port F control registers to clock out...

Page 32: ...om the D A converter and RC is the time constant 2 5 ms The settling will be within 99 326 or within about 22 mV for a 3 3 V change in voltage after five time constants or 12 5 ms Six time constants 1...

Page 33: ...S 422 SPI ports can also be oper ated in the clocked serial mode In this mode a clock line synchronously clocks the data in or out Either of the two communicating devices can supply the clock for the...

Page 34: ...232 port is initiated in software using the serXflowcontrolOn function call from RS232 LIB where X is the serial port E or F The locations of the flow control lines are specified using a set of five m...

Page 35: ...erDclose define ser485wrFlush serDwrFlush define ser485rdFlush serDrdFlush define ser485putc serDputc define ser485getc serDgetc define DINBUFSIZE 15 define DOUTBUFSIZE 15 ifndef _485BAUD define _485B...

Page 36: ...R52 R31 R40 R41 R17 C18 C16 R28 R82 R26 C15 C14 C13 R24 R25 U6 C28 C27 R56 R77 C35 C36 C34 C33 U9 U10 R76 U5 DS1 DS2 DS3 DS4 R27 R71 R70 R66 R67 R58 R55 R49 R48 R47 R46 R43 R42 R44 R45 R35 R34 R33 R32...

Page 37: ...AG connector on the programming cable In addition to Serial Port A the Rabbit 3000 startup mode SMODE0 SMODE1 status and reset pins are available on the programming port The two startup mode pins dete...

Page 38: ...ck one to indicate an Ethernet link LNK and one to indicate Ethernet activity ACT The transformer connector assembly ground is connected to the RabbitCore module printed circuit board digital ground v...

Page 39: ...20 C19 D9 R29 R30 C29 D10 R54 R61 R59 R63 R64 R68 R74 C32 J9 R75 R73 R72 R69 R65 R62 R60 R57 R53 Q5 Q1 D6D4 Q2 Q4 D7 Q3 Q6 Q7 D8 D5 U2 C11 C7 D2 U3 TVS1 L1 C6 JB RCM1 U4 J3 R39 R38 R37 R36 C17C26 C24...

Page 40: ...sor s internal clock doubler will reduce power consumption and further reduce radiated emissions The clock doubler is disabled with a simple config uration macro as shown below NOTE Disabling the cloc...

Page 41: ...ect the Defines tab from the Dynamic C Options Project Options menu 2 Normal spreading is the default and usually no entry is needed If you need to specify normal spreading add the line ENABLE_SPREADE...

Page 42: ...iscouraged Instead use a portion of the user block area to store persistent data The functions writeUserBlock and readUserBlock are provided for this Refer to the Rabbit 3000 Microprocessor Designer s...

Page 43: ...e disadvantage is that the code and data might not both fit in RAM NOTE An application can be developed in RAM but cannot run standalone from RAM after the programming cable is disconnected Standalone...

Page 44: ...Standard debugging features Breakpoints Set breakpoints that can disable interrupts Single stepping Step into or over functions at a source or machine code level C OS II aware Code disassembly The dis...

Page 45: ...IOS or libraries in the new directory containing the patch Do not simply copy over an entire file since you may overwrite a bug fix Once you are sure the new patch works entirely to your satisfaction...

Page 46: ...d sample programs to your existing Dynamic C installation 1 Double click on the file name of the self extracting ZIP file 2 The extracting program will prompt you for a folder in which to place the fi...

Page 47: ...ASHLEDS C Uses cofunctions and costatements to flash LEDs on the Coyote at different intervals TOGGLESWITCH C Uses costatements to detect switches presses on the Demonstra tion Board with press and re...

Page 48: ...equiva lent value to the STDIO window ADCCALIB C This program demonstrates how to recalibrate one single ended A D converter channel using two known voltages to generate constants that are then rewri...

Page 49: ...ransmitting the file using a serial port with a PC serial utility such as Tera Term NOTE Use the sample program DNLOADCALIB C to retrieve the data and rewrite it to the single board computer DNLOADCAL...

Page 50: ...lications for the Coyote BL2500 libraries associated with features specific to the Coyote The functions in the BL25xx LIB library are described in Section 4 4 Coyote Function Calls RN_CFG_BL25 LIB use...

Page 51: ...initialized according to Table A 3 Summary of initialization 1 RS 485 is not initialized 2 RS 232 is not initialized 3 Unused configurable I O are either pulled up inputs or outputs set high 4 PWM for...

Page 52: ...nk consists of OUT0 OUT7 This call is faster than setting the individual channels but does not output states simultaneously States are written in succession from OUT7 OUT0 A run time error will occur...

Page 53: ...ts of IN08 IN15 This call is faster than reading the individual channels but does not read the states simultaneously States are read in succession from IN15 IN08 or from IN07 IN00 A run time error wil...

Page 54: ...4 3 LEDs LED on off control PARAMETERS led is the LED to control 0 LED DS1 1 LED DS2 2 LED DS3 3 LED DS4 value is used to control whether the LED is on or off 0 OFF 1 ON RETURN VALUE None void ledOut...

Page 55: ...Function Reference Manual and Technical Note 213 Rabbit Serial Port Software Use the following function calls with the Coyote Enables the RS485 transmitter Transmitted data get echo ed back into the...

Page 56: ...between 0 0 and 3 3 V on the analog input channel 1 if the return value is out of range SEE ALSO cof_anaIn anaInVolts This function is the cofunction version of the analog input for analog input chan...

Page 57: ...e of the A D converter channel as a linear function using the two conversion points provided Values are calculated and placed into global table _adcCalibS for analog inputs to be stored later into sim...

Page 58: ...if successful 1 if invalid address or range SEE ALSO anaInEEWr anaInCalib Writes the calibration constants gain and offset for an input based on its designated channel code position into global table...

Page 59: ...PWM channels Use pwm_init to set the frequency An exception error will occur if brdInit has not been called previously PARAMETERS channel is the PWM output channel to set 0 for DA0 1 for DA1 pwmoptio...

Page 60: ...igh of the 1024 clock count cycle for example 0 25 1024 RETURN VALUE 0 if successful SEE ALSO pwmOutConfig pwm_init Sets the voltage of an analog output channel by using the previously set calibration...

Page 61: ...of 930 that corresponds to 3 0 V volts2 is the voltage corresponding to the second D A converter value 0 3 3 V or Vref RETURN VALUE 0 if successful 1 if not able to make calibration constants SEE ALS...

Page 62: ...LOCK_INFO C in SAMPLES USERBLOCK to get the addresses reserved for the calibration data constants and the addresses available for use in your program NOTE This function cannot be run in RAM PARAMETER...

Page 63: ...e following bits in RNSTATUSABORT to abort transmitting data after the status byte is returned This does not affect the status byte and still can be interpreted Set any bit com bination to abort bit 7...

Page 64: ...port select prior to data transfer PARAMETERS portnum 0 RETURN VALUE None This is a macro that disables or deasserts the BL2500 RabbitNet port select to invalidate data transfer PARAMETERS portnum 0 R...

Page 65: ...it More information is available at www rabbit com 1 Connect the AC adapter and the programming cable as shown in Chapter 2 Getting Started 2 Ethernet Connections If you do not have access to an Ether...

Page 66: ...nding the reset pins on the back of the Coyote When the PROG connector of the programming cable connects the Coyote to your PC and Dynamic C is running a RESET occurs when you press Ctrl Y The green L...

Page 67: ...dit the values in the section that directly follows the General Configuration comment in the TCP_CONFIG LIB library You will find this library in the LIB TCPIP directory 3 You can create a CUSTOM_CONF...

Page 68: ...ion of Windows you are using look for the TCP IP Protocol Network Dial Up Connections Network line or tab Double click on this line or select Properties or Local Area Connection Properties to bring up...

Page 69: ...n is made Note If the LNK light does not light you may not have a crossover cable or if you are using a hub perhaps the power is off on the hub The next step is to ping the board from your PC This can...

Page 70: ...er to bring up the Web page served by the sample program http 10 10 6 100 Otherwise use the TCP IP settings you entered in the TCP_CONFIG LIB library The program PINGLED C SAMPLES BL2500 TCPIP demonst...

Page 71: ...User s Manual 65 APPENDIX A SPECIFICATIONS Appendix A provides the specifications for the Coyote...

Page 72: ...BBITNET 3 3V AD0 AGND DA0 DA1 AGND VCC DCIN GND TxE RxE GND RxF TxF RS 232 GROUND R18 BT1 C31 RS 485 CMOS SERIAL PORTS GND 3 3V SCLKC RxC TxC GND 485 485 VCC 08 09 10 11 12 13 14 15 GND Dig Inputs 00...

Page 73: ...C worst case 17 ms settling time to within 5 mV of final value built in RC settling time constant 2 5 ms Serial Ports 6 serial ports one RS 485 two RS 232 or one RS 232 with CTS RTS one clocked serial...

Page 74: ...round the Coyote in all directions when the Coyote is incorporated into an assembly that includes other components An exclusion zone of 0 12 3 mm is recommended below the Coyote Figure A 2 shows this...

Page 75: ...R5 C4 C7 C6 C10 C12 C16 U2 C9 C11 C15 C20 J3 C41 C44 DS2 DS1 Y3 C42 C38 Y2 U9 Q1 D1 C33 R29 R28 C22 R32 C24 R33 U5 R14 R18 R19 C13 R11 R12 R21 C23 R16 C18 C17 R20 C25 R24 R30 C26 R23 U6 C19 R15 R17 R...

Page 76: ...ISTORS R21 R20 R19 R79 C12 R78 R81 R80 JC U8 GND C30 R50 R51 R52 R31 R40 R41 R17 C18 C16 R28 R82 R26 C15 C14 C13 R24 R25 U6 C28 C27 R56 R77 C35 C36 C34 C33 U9 U10 R76 U5 DS1 DS2 DS3 DS4 R27 R71 R70 R6...

Page 77: ...e jumpers Table A 2 Coyote Jumper Configurations Description Pins Connected Factory Default IN00 IN07 R58 Pulled up to 3 3 V R56 Pulled down R55 Pulled up to K RS 485 Bias and Termination Resistors R2...

Page 78: ...DS4 High disabled PA7 Output LED DS3 High disabled PB0 Output CLKB SPI High PB1 Input Programming Port Clock High PB2 Input AD0 Low Comparator Driven by comparator PB3 Input AD0 High Comparator Driven...

Page 79: ...D0 Output Realtek RSTDRV Inactive high PD1 Output Not Used High PD2 Output Ethernet High PD3 Output Ethernet High PD4 Output OUT4 Low PD5 Output OUT5 Low PD6 Output Ethernet High PD7 Output Ethernet H...

Page 80: ...gh PG0 Input IN04 Pulled up to 3 3 V PG1 Input IN05 Pulled up to 3 3 V PG2 Output TXF RS 232 Serial Port F High PG3 Input RXF RS 232 High PG4 Input IN06 Pulled up to 3 3 V PG5 Input IN07 Pulled up to...

Page 81: ...at D1 as shown in Figure B 1 Figure B 1 Coyote Power Supply The input voltage range is from 8 V to 40 V DC There is provision on the printed circuit board for a transorb to be installed at TVS1 in par...

Page 82: ...utput signal A soldered in 1000 mA h lithium battery provides power to the real time clock and SRAM when external power is removed from the circuit board The drain on the battery is less than 10 A whe...

Page 83: ...2 Reset Generator The Coyote s RabbitCore module uses a reset generator to reset the Rabbit 3000 micro processor when the voltage drops below the voltage necessary for reliable operation The reset ty...

Page 84: ...sed on Power Supply and Vcc 5 V Current Used at J7 and J8 VRAW Power Supply Input at J2 V Current at Vcc 100 mA 200 mA 300 mA 400 mA 500 mA 600 mA 623 mA 8 0 545 450 355 260 164 69 47 8 5 574 484 395...

Page 85: ...will need Wire 22 to 30 AWG 0 33 mm2 to 0 049 mm2 for the 0 1 crimp terminals 22 to 26 AWG 0 33 mm2 to 0 13 mm2 for the 0 156 crimp terminals Wire cutters and wire insulation stripper Crimp tool plie...

Page 86: ...mp terminal facing the opening on the side of the friction lock connector Insert the crimp terminal until the tab snaps into place in the side opening Figure C 2 Insert Crimp Terminals Into Friction L...

Page 87: ...7 R71 R70 R66 R67 R58 R55 R49 R48 R47 R46 R43 R42 R44 R45 R35 R34 R33 R32 C21 C20 C19 D9 R29 R30 C29 D10 R54 R61 R59 R63 R64 R68 R74 C32 J9 R75 R73 R72 R69 R65 R62 R60 R57 R53 Q5 Q1 D6D4 Q2 Q4 D7 Q3 Q...

Page 88: ...1 AGND VCC DCIN GND TxE RxE GND RxF TxF RS 232 GROUND R18 BT1 C31 RS 485 CMOS SERIAL PORTS GND 3 3V SCLKC RxC TxC GND 485 485 VCC 08 09 10 11 12 13 14 15 GND Dig Inputs 00 01 02 03 04 05 06 07 GND Dig...

Page 89: ...VCC DCIN GND TxE RxE GND RxF TxF RS 232 GROUND R18 BT1 C31 RS 485 CMOS SERIAL PORTS GND 3 3V SCLKC RxC TxC GND 485 485 VCC 08 09 10 11 12 13 14 15 GND Dig Inputs 00 01 02 03 04 05 06 07 GND Dig Input...

Page 90: ...84 Coyote BL2500...

Page 91: ...et Connections All RabbitNet connections are made point to point A RabbitNet master port can only be connected directly to a peripheral card and the number of peripheral cards is limited by the number...

Page 92: ...ce voltage is available on the con nector The following connectors are used Signal 0 1 friction lock connectors Power 0 156 friction lock connectors RabbitNet RJ 45 connector D A converter 8 channels...

Page 93: ...r a data rate of 1 MHz Rabbit recommends a practical limit of 10 m 33 ft Connections between peripheral cards and masters are done using standard 8 conductor Ethernet cables Masters and peripheral car...

Page 94: ...maximum number of ports A set bit requires a service If portflag 0x03 both RabbitNet ports 0 and 1 will need to be serviced servicetype enables or disables each RabbitNet port as set by the port flag...

Page 95: ...ev flags RN_MATCH_PORT RN_MATCH_SN newdev ports 0x03 search ports 0 and 1 newdev serialnum E3446C01L handle rn_find newdev RETURN VALUE Returns the handle of the first device matching the criteria 0 i...

Page 96: ...data length was greater than 15 SEE ALSO rn_read Reads a string from the specified device and register Waits for results This function will check device information to determine that the peripheral c...

Page 97: ...N VALUE The status byte from the previous command 1 means that device information indicates the peripheral card is not connected to the master Sets software watchdog timeout period Call this function...

Page 98: ...timer 2 enables software watchdog timer RETURN VALUE The status byte from the previous command 1 means that device information indicates the peripheral card is not connected to the master SEE ALSO rn_...

Page 99: ...tatus byte from the previous command PARAMETERS handle is an address index to device information Use rn_device or rn_find to establish the handle retdata is a pointer to the return address of the comm...

Page 100: ...Busy 11 Device not connected 0 Device 1 Router 0 No error 1 Communication error Use the function rn_comm_status to determine which error occurred Reserved for individual peripheral cards Reserved for...

Page 101: ...friction lock connectors 3 software 3 digital I O SMODE0 31 SMODE1 31 digital inputs 21 dimensions BL2500 66 DIN rail mounting 5 components 5 Dynamic C 4 38 add on modules 39 COM port 14 debugging fe...

Page 102: ...ias resistors 30 Run Mode 33 S sample programs 41 A D converter inputs AD0 C 42 ADCALIB C 42 COF_ANAIN C 42 DA2AD C 42 DNLOADCALIB C 43 UPLOADCALIB C 43 CONTROLLED C 41 D A converter DAC C 42 DACCALIB...

Page 103: ...User s Manual 97 function calls readUserBlock 36 writeUserBlock 36 sample programs USERBLOCK_INFO C 52 55 56...

Page 104: ...98 Coyote BL2500...

Page 105: ...tion schemat 090 0042 pdf 090 0128 Programming Cable Schematic www rabbit com documentation schemat 090 0128 pdf You may use the URL information provided above to access the latest schematics directly...

Page 106: ......

Page 107: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Rabbit Semiconductor 101 0577...

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