QuickCAN User Manual
Contents
1. 12 8 1 Command R 12 8 2 Command W 13 8 3 Command C 13 8 4 Command X 14 8 5 Command I 14 8 6 Command A 15 8 7 Command T 15 8 8 Command M 16 8 9 Command D 17 8 10 Command Q 17 8 11 Command V 18 8 12 Command Z2. 7 7 6 Send 8 7 7 Arm Trigger 8 7 8 Abort All 8 7 9 Filter Register 9 7 10 Baud rate Register 9 7 11 Register map 10 7 12 MCP2515 Status 10 7 13 Reset MCP2515 11 7 14 Exit 11 7 15 Operation mode 11 7 16 Baud Rate 11 8 USB 2 CAN Communication protocol
3. 24 format from registers values
4. 18 8 13 Command J 19 9 Initialization 21 10 Revision History 23 Q Proto System www qprotos com 1 1 Introduction QuickCAN device provides a simple reliable and high performance connection between your PC and the controller area network CAN via USB port No external power is required as QuickCAN device is powered by built in USB port QuickCAN package comes with a Windows interface application program This program initializes QuickCAN MCP2515 firmware at startup and provides point and click access to all MCP2515 internal registers It also provides a user friendly interface to send and receive CAN messages that can be either standard or extended frames QuickCAN package also provides the USB 2 CAN communication protocol which offers users the flexibility to develop their own applications The following block diagram illustrates the operation of the QuickCAN device 2 Quick Start 2 1 Download QuickCAN Application QuickCAN exe from Q Proto system w
5. 1 1 Messages in both buffers Bit 4 Bit 3 Message type received 0 0 Standard frame 0 1 Standard remote 1 0 Extended frame 1 1 Extended remote Bit 2 Bit 1 Bit 0 Filter match 0 0 0 RXF0 0 0 1 RXF1 0 1 0 RXF2 0 1 1 RXF3 1 0 0 RXF4 1 0 1 RXF5 1 1 0 RXF0 roll over to RxB1 Q Proto System www qprotos com 20 1 1 1 RXF1 roll over to RxB1 Error response Byte 0 Byte 1 Byte 2 Byte 3 E Error code Checksum Error code 1 MCP2515 Error 2 Invalid QuickCAN command 3 Invalid Checksum 5 No data actually not an error Q Proto System www qprotos com 21 10 Initialization Configuration file QuickCAN ini is used to initialize the MCP2515 when the QuickCAN interface application is launched This file shall be located at c Windows directory The following parameters can be set in the QuickCAN ini file 10 1 Initialization parameters o SWITCH Format ON 1 or 0 When ON 1 QuickCAN ini file is used to initialize the MCP2515 When ON 0 QuickCAN ini file is not used at all o TIMER Format INTERVAL lt value gt Set QuickCAN interface application timer interval This interval and the tri
6. A Checksum Error response Byte 0 Byte 1 Byte 2 Byte 3 E Error code Checksum Error code 1 MCP2515 Error 2 Invalid command 3 Invalid Checksum 9 7 Command T Description Set RTS command Format Q Proto System www qprotos com 16 Byte 0 Byte 1 Byte 2 Byte 3 T Command byte Checksum Command byte refer to MCP2515 datasheet 0 None 1 TX0 2 TX1 3 TX0 amp TX1 4 TX2 5 TX2 amp TX0 6 TX2 amp TX1 7 TX2 TX1 TX0 Response Byte 0 Byte 1 Byte 2 T Checksum Error response Byte 0 Byte 1 Byte 2 Byte 3 E Error code Checksum Error code 1 MCP2515 Error 2 Invalid QuickCAN command 3 Invalid Checksum 4 Invalid MCP2515 byte byte 2 9 8 Command M Description Send BIT modify command Format Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 M Address Mask Data Checksum Response Byte 0 Byte 1 Byte 2 M Checksum Error response Byte 0 Byte 1 Byte 2 Byte 3 E Error code Checksum Error code 1 MCP2515 Error 2 Invalid QuickCAN command Q Proto System www qprotos com 17 3 Invalid Checksum 9 9 Command D Description Get multiple bytes from MCP2515
7. Microchip MCP2551 CAN transceiver 5 5 Self powered by USB port 5 6 The QuickCAN interface application initializes the MCP 2515 firmware at start up The device is ready to send and receive CAN messages 5 7 Documented USB to CAN communication protocol allows users to develop their own applications for extensive usage 5 8 Full USB1 1 speed at 12MHz 5 9 DB9 Male connector for CAN network 5 10 Support loopback and listen operations 5 11 Up to 1 M bit software selectable CAN baud rate 5 12 Windows driver for Win98 SE 2000 and XP is included 6 QuickCAN hardware pin out and LED indication 6 1 DB9 Male pin out Pin 1 RST Pin 2 CAN Low Pin 3 GND Pin 4 C2D Pin 5 Shield GND Pin 6 GND Pin 7 CAN High Pin 8 C2CK Pin 9 V optional Pin 1 Pin 4 and Pin 8 are used for C8051F320 programming purpose and they shall not be used for CAN connection Misuse of these pins may result in damage of the QuickCAN device Pin 9 V is not connected at this time 6 2 LED indication The LED is lit when the QuickCAN device is connected to the PC The lit LED indicates that the device is powered Please note that the Windows device driver must be installed before the QuickCAN is ready to be used Q Proto System www qprotos com 3 7 Device driver installation 7 1 For new purchase skip
8. 0 Byte 1 Byte 2 Byte 3 E Error code Checksum Error code 1 MCP2515 Error 2 Invalid QuickCAN command 3 Invalid Checksum 9 12 Command Z Description Reset the MCP 2515 RX FIFO The number of CAN messages in FIFO is also reset to zero Format Byte 0 Byte 1 Byte 2 Z Checksum Response Byte 0 Byte 1 Byte 2 Z Checksum Error response Byte 0 Byte 1 Byte 2 Byte 3 E Error code Checksum Error code 1 MCP2515 Error 2 Invalid QuickCAN command Q Proto System www qprotos com 19 3 Invalid Checksum 9 13 Command J Description Request the MCP2515 to send received messages up to 32 packets to the host Format Byte 0 Byte 1 Byte 2 J Checksum Response Transfers up to 32 packets to the host Note that this response has no checksum byte The format of the packet is shown below Byte 0 Byte 1 Byte 2 Byte 3 6 Byte 7 Byte 8 15 Byte 16 J Rx Status CAN ID Length Data N A Byte 17 Byte 18 Byte 19 Byte 20 23 Byte 24 Byte 25 32 Byte 33 J Rx Status CAN ID Length Data N A Byte 34 Byte 35 Byte 36 Byte 37 40 Byte 41 Byte 42 49 Byte 50 J Rx Status CAN ID Length Data N A Up to 32 packets Rx Status Bit 7 Bit 6 Received message 0 0 No Rx 0 1 Message in RxB0 1 0 Message in RxB1
9. QuickCAN User Manual Revision 1 1 Date 7 2005 1 Introduction 1 2 Quick Start 1 3 System requirements 1 4 Specification 2 5 QuickCAN hardware pin out and LED indication 2 6 Device driver installation 3 7 QuickCAN interface application 6 7 1 Clear All 6 7 2 Get Message 7 7 3 Enable Scan 7 7 4 Save 7 7 5 Add message
10. gt button Q Proto System www qprotos com 4 7 3 Select option lt Search for the best driver in these locations gt Set the search location to the directory where QuickCAN driver is located i e c QuickCAN driver if you unzip QuickCAN zip to c QuickCAN Then click the lt Next gt button 7 4 Occasionally you may get the following warning on some operating systems This is because QuickCAN device driver has not been certified from Microsoft at this time However this installation should not effect the operation of your system Click the lt Continues Anyway gt button to continue installation Q Proto System www qprotos com 5 7 5 Click the lt Finish gt button to complete the installation after the hardware wizard finishes installing QuickCAN device driver To verify the successfully installation of the driver open Windows lt control panel gt lt System gt lt Hardware gt lt Device Manager gt the QuickCAN device shall be shown under Universal Serial Bus controllers tree Q Proto System www qprotos com 6 8 Q
11. up to 8 bytes each time Format Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 D Number of byte to retrieve Starting address Checksum Response Byte 0 Byte 1 Byte 2 Byte 3 10 Byte 4 or 5 or 11 D Number of retrieved byte Data Checksum Error response Byte 0 Byte 1 Byte 2 Byte 3 E Error code Checksum Error code 1 MCP2515 Error 2 Invalid QuickCAN command 3 Invalid Checksum 4 Byte 2 gt 8 9 10 Command Q Description Write multiple bytes to MCP2515 up to 8 bytes each time Format Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 11 Byte 5 or 6 or 12 Q Number of byte to write Starting address Data Checksum Response Byte 0 Byte 1 Byte 3 Q Checksum Error response Byte 0 Byte 1 Byte 2 Byte 3 E Error code Checksum Error code 1 MCP2515 Error 2 Invalid QuickCAN command 3 Invalid Checksum Q Proto System www qprotos com 18 4 Byte 2 gt 8 9 11 Command V Description Get the error status packet dropped count from the MCP 2515 Format Byte 0 Byte 1 Byte 2 V Checksum Response Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 V TEC REC EFLG Dropped packet count high byte Dropped packet count low byte Number of CAN Msg in the FIFO Checksum Error response Byte
12. 5 reception filters and masks It is disabled when button lt Enable Scan gt is enabled The values of MCP2515 reception filters and masks at application startup are defined in the file c Windows QuickCAN ini if any Filters and masks changes made from the interface are NOT saved back to QuickCAN ini lt View ID format gt allows user to view the filter register into converted ID format For example a standard frame filter register value 0x5B000000 is shown as 0x000002D8 after the conversion 8 10 Baud rate Register This button allows users to change the baud rate registers for the customized CAN speed It is disabled when button lt Enable Scan gt is enabled The MCP2515 chip is running at 16MHz Q Proto System www qprotos com 10 8 11 Register map This button allows users to retrieve and edit the values of all the MCP2515 internal registers except for baud rate and filter registers Refer to MCP2515 datasheet for details Note The MCP2515 operation mode is NOT changed during this operation Hence the values of the baud rate registers and filter registers may not be shown properly as they can only be updated in configuration mode 8 12 MCP2515 Status This button shows the error status of CAN network Refer to MCP2515 datasheet for details It also shows the status of the receiving FIFO
13. ILTER2 0x12345678 FILTER3 0x12345678 FILTER4 0x12345678 FILTER5 0x12345678 CNF3 0x6 CNF2 0xf9 CNF1 0x43 0 filter off 1 standard 2 extended 3 standard or extended ACCEPTANCE0 1 accept standard frames that meet the filter criteria ACCEPTANCE1 3 accept both standard and extended frames FILE NAME c quickcan host debug init txt 10 2 2 Example of the init txt specified in QuickCAN ini FILE option TxBuf Id CAN id Frame type length data triggered time This is a comment line 0 0x2d8 R STD 0x3 0x1E 0x12 0x13 1 remote standard frame id is 0x2d8 length is 0x3 and no time trigger 0 0x2d8 STD 0x8 0x5a 0 0 0 0 0 0 0x2d 0x567 standard frame id is 0x2d8 length is 8 data packets are 0x5a 0 0 0 0 0 0 0x2d triggered time is 0x567 count of the preset application timer interval MAX_LIST_CNT COUNT 10000 lt Message Activities gt will display as many as 10000 messages before flushing 11 Revision History Document Revision Software Revision Date Comment 1 0 1 0 11 05 2004 Initial release 1 1 1 1 7 22 2005 1 Add section 6 1 to show how to upgrade Interface program from 1 0 to 1 1 2 Add description for lt view register gt button under lt Add message gt dialog 3 The interface program is USBXpress 2 1 compatible 4 Add lt view ID format gt in filter dialog to show the converted ID Q Proto System www qprotos com
14. Packet Dropped count the number of dropped packet when the receiving FIFO is full The QuickCAN device has 32 software FIFOs to receive CAN messages Q Proto System www qprotos com 11 Number of messages in the FIFO the number of received CAN messages in the software FIFO 8 13 Reset MCP2515 This button resets the MCP2515 to its power up state 8 14 Exit This button exits the QuickCAN application 8 15 Operation mode This button sets the MCP2515 operation mode 8 16 Baud Rate This dropdown list allows the users to set the MCP2515 to a pre configured baud rate Q Proto System www qprotos com 12 9 USB 2 CAN Communication protocol The QuickCAN device provides a set of communication protocol for users to develop their own applications The protocol is developed with the Silicon Laboratories USBXpress driver development kits and allows users to easily create USB application to the QuickCAN device It is strongly recommended that USBXpress be used to develop applications because of its easy to use and compatibility with the QuickCAN device For details of the USBXpress please refer to USBXpress programmer guide from http www cygnal org QuickCAN applicatio
15. eb site www qprotos com download html and install it to your local 2 2 Connect the QuickCAN device to the PC via USB A B cable 2 3 Install the Windows device driver see chapter 6 2 4 Launch the QuickCAN exe from Windows lt start gt lt QuickCAN gt menu 2 5 Ready to use 3 Disclaimer While every effort has been made to ensure that the information contained in this manual is accurate and complete no liability can be accepted for any error and omission Q Proto system reserves the right to change the specification of the hardware and software described herein at any time prior notice Q Proto System shall not be liable for direct indirect incidental general or consequential damage from the use of the products from Q Proto system If you do not agree with these terms do not buy the products 4 System requirements 4 1 Windows 98SE 2000 XP operating system 4 2 Pentium II 350MHz or above 4 3 Minimum 256M RAM 4 4 One available USB 1 1 or above port on the PC QuickCAN device PC USB Port Controller Area Network USB C8051F320 Core MCP2515 16 MHzClock Q Proto System www qprotos com 2 5 Specification 5 1 High speed 8051 compatible microcontroller C8051F320 with built in USB functionality 5 2 CAN2 0A and B support 5 3 Microchip MCP2515 CAN controller running at 16 MHz 5 4
16. gger time value together determine when to send a Time Triggered CAN message from the lt outgoing messages gt list User shall carefully set the timer interval that is sufficient to process all the timer triggered messages in the lt Outgoing Messages gt list control o CONFIG Format MASK0 lt value gt MASK1 lt value gt FILTER0 lt value gt FILTER1 lt value gt FILTER2 lt value gt FILTER3 lt value gt FILTER4 lt value gt FILTER5 lt value gt CNF3 lt value gt CNF2 lt value gt CNF1 lt value gt ACCEPTANCE0 lt value gt ACCEPTANCE1 lt value gt Where MASK0 MASK1 FILTER0 FILTER1 FILTER2 FILTER3 FILTER4 FILTER5 CNF3 CNF2 CNF1 are the mask filter and baud rate registers of the MCP2515 ACCEPTANCE parameter defines the type of CAN message that can be received in filter 0 or 1 respectively See table below for detail ACCEPTANCE value Message to receive 0 Filter is off 1 Receive only valid messages with extended identifiers that meet filter criteria Q Proto System www qprotos com 22 2 Receive only valid messages with standard identifiers that meet filter criteria 3 Receive all valid messages using either standard or extended identifiers that meet the filter criteria o MAX_LIST_COUNT Format COUNT lt value gt The lt value gt is the
17. maximum number of messages that can be displayed in the lt Message Activities gt list control When this limit is reached the lt Message Activities gt control flushes the contents and restart from 0 Setting this limit to zero allows lt Message Activities gt control to continuously display all the traffic without flushing Time to flush the lt Message Activities gt may vary on different OS and CPU o FILE Format FILE lt file name with full path gt The lt name gt is file name of the ASCII file that has all the TX data to be loaded into the lt Outgoing Messages gt list Format of the file 1 Packet format lt TxBuf Id gt lt CAN id gt lt Frame type gt lt length gt lt data gt lt triggered time gt Each packet ends with followed by the carriage return 2 lt Frame type gt must be set to one of the following values 1 STD 2 EXT 3 R STD 4 R EXT 3 A line starting with character is considered as comment 4 When lt triggered time gt is 1 the packet will not be transmitted when lt Arm Trigger gt is active 10 2 Examples 10 2 1 QuickCAN ini SWITCH ON 1 TIMER Q Proto System www qprotos com 23 INTERVAL 30 timer interval is 30 ms This value is used by TX trigger event CONFIG MASK0 0x0 MASK1 0xFFFFFFFF FILTER0 0x87654321 FILTER1 0x5B000000 F
18. n version USBXpress version used 1 0 USBXpress 1 4 1 1 USBXpress 2 1 The communication protocol is asynchronous which means one command and one response No command shall be issued before the previous response is received All commands start with followed by QuickCAN command byte and ended with checksum All responses start with followed by QuickCAN command byte plus returned data if any and the checksum except for the response to J command J response does not have checksum appended If any error occurs during the operation the first two bytes of the response are E followed by the error code and checksum The user application shall check for error status from the response before proceeding to the next operation The XOR checksum method is applied to all the commands and responses except for the response to J command For example if a request 0x40 0x41 is sent to the device a checksum byte 0x01 shall be appended to the original data Therefore the real time outgoing data is 0x40 0x41 0x01 the same XOR method applies to responses except for the response to J command In the USB 2 CAN protocol QuickCAN command byte refers to the command sent to the QuickCAN device Usually this command byte is the second byte the command packet The MCP2515 command byte refers to the command sent to MCP2515 which could be embedded in the whole packet 9 1 Command R Description Read regi
19. ster Format Byte 0 Byte 1 Byte 2 Byte 3 R Register address Checksum Response Byte 0 Byte 1 Byte 2 Byte 3 R Register value Checksum Error response Byte 0 Byte 1 Byte 2 Byte 3 E Error code Checksum Error code Q Proto System www qprotos com 13 1 MCP2515 Error 2 Invalid QuickCAN command 3 Invalid checksum 9 2 Command W Description Update register Format Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 W Register address Value Checksum Response Byte 0 Byte 1 Byte 2 W Checksum Error response Byte 0 Byte 1 Byte 2 Byte 3 E Error code Checksum Error code 1 MCP2515 Error 2 Invalid QuickCAN command 3 Invalid checksum 9 3 Command C Description Read RX buffer Format Byte 0 Byte 1 Byte 2 Byte 3 C MCP2515 Command byte Checksum MCP2515 Command byte refer to MCP2515 datasheet 0 RX buffer starts from RXB0SIDH 1 RX buffer starts from RXBD0 2 RX buffer starts from RXB1SIDH 3 RX buffer starts from RXBD1 Response Byte 0 Byte 1 Byte 2 9 or 2 14 Byte 10 or 15 C Data Checksum Q Proto System www qprotos com 14 Error response Byte 0 Byte 1 Byte 2 By
20. t Outgoing Messages gt list 8 7 Arm Trigger This button sends all CAN messages that have the trigger time set in the lt Outgoing Messages gt list These messages are called Time Triggered messages Once a time triggered message is transmitted its trigger time value is set to 1 to indicate the completion of transmission The trigger time and the QuickCAN application timer interval together determine when a time triggered message is sent The formula is shown as below Time to send the message QuickCAN application timer value trigger time value Where QuickCAN application timer interval value is set in the file c Windows QuickCAN ini See Chapter 9 and its default value is 10ms the trigger time value set by users For example the QuickCAN application timer value is 10 ms set in the file QuickCAN ini and the trigger is set to 0x64 decimal 100 then this CAN message will be transmitted at 1000 ms after the button lt Arm Trigger gt is pressed 8 8 Abort All Q Proto System www qprotos com 9 This button sets the Global abort bit ABAT bit in the MCP2515 which aborts all the pending transmissions User must clear this bit manually to re enable the transmission This bit can be cleared from lt Reg Map gt function 8 9 Filter Register This button allows users to edit the current values of MCP251
21. te 3 E Error code Checksum Error code 1 MCP2515 Error 2 Invalid QuickCAN command byte 1 3 Checksum 4 Invalid MCP2515 Command byte byte 2 9 4 Command X Description Load TX buffer Format Byte 0 Byte 1 Byte 2 Byte 3 15 Byte 16 X MCP2515 Command byte Data see MCP2515 datasheet Checksum MCP2515 Command byte 0x40 TX buffer 0 start at TXB0SIDH 0x41 TX buffer 0 start at TXB0D0 0x42 TX buffer 1 start at TXB1SIDH 0x43 TX buffer 1 start at TXB1D0 0x44 TX buffer 2 start at TXB2SIDH 0x45 TX buffer 2 start at TXB2D0 Response Byte 0 Byte 1 Byte 2 X Checksum Error response Byte 0 Byte 1 Byte 2 Byte 3 E Error code Checksum Error code 1 MCP2515 Error 2 Invalid QuickCAN command 3 Invalid Checksum 9 5 Command I Description Get Rx status Format Q Proto System www qprotos com 15 Byte 0 Byte 1 Byte 2 I Checksum Response Byte 0 Byte 1 Byte 2 Byte 3 I Status value see MCP2515 for details Checksum Error response Byte 0 Byte 1 Byte 2 Byte 3 E Error code Checksum Error code 1 MCP2515 Error 2 Invalid QuickCAN command 3 Invalid Checksum 9 6 Command A Description Reset MCP2515 Format Byte 0 Byte 1 Byte 2 A Checksum Response Byte 0 Byte 1 Byte 2
22. to the step 6 2 For Interface Program UPGRADE user the following steps must be followed to ensure the QuickCAN device is working properly on the new device driver 1 Detach the QuickCAN device from your PC USB port 2 Remove older version the QuickCAN directory 3 Install the new version of the Interface program 4 Plug the QuickCAN device to your PC 5 Go to lt Control panel gt gt lt system gt gt lt device manager gt to remove the QuickCAN device driver It should be under lt Universal Serial bus controller gt 6 Detach and reattach the QuickCAN 7 Windows should pop up the lt Found new hardware Wizard gt dialog a When Windows OS asks Can Windows connect to Windows Update to search for software Click lt this time only gt b Select install from a list or specific location and click lt next gt c Check the include this location in the search box and browse to the driver directory that the driver directory that QuickCAN application is just installed d Sometimes Windows may ask the location of the file SiF32x sys This file is also under the driver sub directory of the QuickCAN application 7 2 The following steps are only applied to the new purchase user Plug in the QuickCAN device to your USB port through the USB A B cable The setup wizard should run automatically and a Welcome screen should appear as follows Select option lt Install from a list or specified location Advanced gt Then click the lt Next
23. uickCAN interface application QuickCAN interface application provides users an easy and quick start to access Controller Area Network CAN The application uses the USB 2 CAN communication protocol to access the MCP2515 internal registers and initialize the proper MCP2515 registers to send and receive CAN messages Overview QuickCAN interface application is composed of three major control groups Action buttons Send command to access the internal registers of MCP2515 such as lt Filter Registers gt lt Baud rate registers gt and lt MCP2515 status gt etc List control lt Message Activities gt Displays both lt Tx gt and lt Rx gt activities across the CAN bus Each message is time stamped by the Windows timer not firmware timer that is defined by the Timer interval in QuickCAN ini List control lt Outgoing message gt Lists all user defined lt Tx gt data Pressing either the button lt Send gt or lt Arm Trigger gt can send any messages in this list lt Outgoing message gt list can be pre loaded with data from a flat file The data file name with full path is defined in c Windows QuickCAN ini 8 1 Clear All Q Proto System www qprotos com 7 This button removes all the activities in the lt Message Activities gt control list 8 2 Get Message This button gets all the recei
24. ved CAN message from the QuickCAN software FIFO It cannot be used with lt Enable Scan gt simultaneously It is disabled when lt Enable Scan gt is enabled The QuickCAN device uses Interrupt Method to receive CAN messages User must make sure the receive bits in CANINTE are enabled before CAN messages can be received properly Both RX1IE and RX0IE are enabled when QuickCAN interface application is launched Users must re enable those 2 bits after the lt Reset MCP2515 gt is called before any message can be received Other Interrupt bits shall be disabled set to 0 in CANINTE 8 3 Enable Scan This button enables the automatic scanning of the incoming CAN message from QuickCAN MCP2515 Button lt Get Msg gt is disabled when lt Enable Scan gt is enabled 8 4 Save This button saves all the data in lt Message Activities gt to a file in ASCII format It is disabled when lt Enable Scan gt is enabled 8 5 Add message This button allows users to add a CAN message to the lt outgoing message gt list After lt Add Message gt button is pressed a CAN dialog form pops up as following Q Proto System www qprotos com 8 The lt View registers gt button allows user to see the generic data format of the CAN ID registers MCP2515 8 6 Send This button allows user to send the selected CAN message from the l
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