VCI - Virtual CAN Interface - Ixxat

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Types and structures• wBusCoupling:[out] Type of bus coupling. The following values are defined for the bus coupling:CAN_BUSC_LOWSPEED:The CAN controller has a low-speed coupling.CAN_BUSC_HIGHSPEED:The CAN controller has a high-speed coupling.• dwFeatures:[out] Supported features. The value is a combination of one or more of the followingconstants:CAN_FEATURE_STDOREXT:The CAN controller supports 11-bit or 29-bit messages, but not both formats simultaneously.CAN_FEATURE_STDANDEXT:The CAN controller supports 11- and 29-bit messages simultaneously.CAN_FEATURE_RMTFRAME:The CAN controller supports Remote Transmission Request messages.CAN_FEATURE_ERRFRAME:The CAN controller returns error messages.CAN_FEATURE_BUSLOAD:The CAN controller supports calculation of the bus load.CAN_FEATURE_IDFILTER:The CAN controller allows exact filtering of messages.CAN_FEATURE_LISTONLY:The CAN controller supports the operating mode “List only”.CAN_FEATURE_SCHEDULER:Cyclic transmit list available.CAN_FEATURE_GENERRFRM:The CAN controller supports the generation of error frames.CAN_FEATURE_DELAYEDTX:The CAN controller supports delayed transmission of messages.• dwClockFreq:[out] Frequency of primary timers in Hz.• dwTscDivisor:[out] Divisor factor of the time stamp counter. The time stamp counter providesthe time stamp for CAN messages. The frequency of the time stampcounter is calculated from the frequency of the primary timer divided by thevalue specified here.• dwCmsDivisor:[out] Divisor factor for the timer of the cyclic transmit list. The frequency of thetimer is calculated from the frequency of the primary timer divided by the valuespecified here. If no cyclic transmit list is available, the field has the value 0.92Copyright IXXAT Automation GmbH C-API Programming Manual, Version 1.5
Types and structures• dwCmsMaxTicks:[out] Maximum cycle time of the cyclic transmit list in timer ticks. If no cyclictransmit list is available, the field has the value 0.• dwDtxDivisor:[out] Divisor factor for the timer used for delayed transmission of messages.The frequency of the timer is calculated from the frequency of the primary timerdivided by the value specified here. If delayed transmission is not supportedby the CAN interface board, the field has the value 0.• dwDtxMaxTicks:[out] Maximum delay time of the delayed message transmitter in timer ticks. Ifdelayed transmission is not supported by the CAN interface board, the field hasthe value 0.5.2.2 CANLINESTATUSThe data type describes the current status of a CAN controller. The structure is asfollows:typedef struct{UINT8 bOpMode;UINT8 bBtReg0;UINT8 bBtReg1;UINT8 bBusLoad;UINT32 dwStatus;} CANLINESTATUS, *PCANLINESTATUS;• bOpMode:[out] Current operating mode of the CAN controller. The value is a combinationof one or more CAN_OPMODE_ constants and contains the value specifiedin the parameter bMode when the function canControlInitialize is called.• bBtReg0:[out] Current value of the bus timing register 0. The value corresponds to theBTR0 register of the Philips SJA 1000 CAN controller with a cycle frequency of16 MHz. Further information on this is given in the datasheet of the SJA 1000.• bBtReg1:[out] Current value of the bus timing register 1. The value corresponds to theBTR1 register of the Philips SJA 1000 CAN controller with a cycle frequency of16 MHz. Further information on this is given in the datasheet of the SJA 1000.• bBusLoad:[out] Current bus load in per cent (0 to 100). The value is only valid if the busload calculation is supported by the controller. Further information is given inthe section on CANCAPABILITIES.93Copyright IXXAT Automation GmbH C-API Programming Manual, Version 1.5
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System overviewThe VCI server runni
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Device management and device access
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Device management and device access
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Accessing the bus3 Accessing the bu
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Accessing the bus3.1.2.1 Controller
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Accessing the bus3.1.2.2 Message fi
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Accessing the busAs the example sho
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Accessing the busAfter a message ch
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Accessing the busHRESULT hResult;HA
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Accessing the bust zTransmit object
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Accessing the busNormally, the tran
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Accessing the bus3.2.2.1 Controller
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Accessing the busIf the connection
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Accessing the busAfter a message mo
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Interface description4 Interface de
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Interface descriptionReturn value:I
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Interface descriptionpszGuid[out] P
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Page 50 and 51: Interface descriptionphControl[out]
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Page 54 and 55: Interface description4.3.1.6 canCon
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Page 90 and 91: Types and structures• VciObjectId
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Page 96 and 97: Types and structures5.2.5 CANMSGINF
Page 98 and 99: Types and structuresCAN_MSGTYPE_STA
Page 100 and 101: Types and structures5.2.7 CANCYCLIC
Page 102 and 103: Types and structures• dwClockFreq
Page 104 and 105: Types and structuresThe information
Page 106: Types and structures• Bits.ovr:[o
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VCI - Virtual CAN Interface - Ixxat

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