Status Bitfields - neoVI API
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There are two status bitfields in the message structures that define specific attributes of the message. The two status bitfields are named StatusBitfield and StatusBitfield1.
const long SPY_STATUS_GLOBAL_ERR = 0x01;
const long SPY_STATUS_TX_MSG = 0x02;
const long SPY_STATUS_XTD_FRAME = 0x04;
const long SPY_STATUS_REMOTE_FRAME = 0x08;
const long SPY_STATUS_CRC_ERROR = 0x10;
const long SPY_STATUS_CAN_ERROR_PASSIVE = 0x20;
const long SPY_STATUS_INCOMPLETE_FRAME = 0x40;
const long SPY_STATUS_LOST_ARBITRATION = 0x80;
const long SPY_STATUS_UNDEFINED_ERROR = 0x100;
const long SPY_STATUS_CAN_BUS_OFF = 0x200;
const long SPY_STATUS_CAN_ERROR_WARNING = 0x400;
const long SPY_STATUS_BUS_SHORTED_PLUS = 0x800;
const long SPY_STATUS_BUS_SHORTED_GND = 0x1000;
const long SPY_STATUS_CHECKSUM_ERROR = 0x2000;
const long SPY_STATUS_BAD_MESSAGE_BIT_TIME_ERROR = 0x4000;
const long SPY_STATUS_IFR_DATA = 0x8000;
const long SPY_STATUS_HARDWARE_COMM_ERROR = 0x10000;
const long SPY_STATUS_EXPECTED_LEN_ERROR = 0x20000;
const long SPY_STATUS_INCOMING_NO_MATCH = 0x40000;
const long SPY_STATUS_BREAK = 0x80000;
const long SPY_STATUS_AVSI_REC_OVERFLOW = 0x100000;
const long SPY_STATUS_TEST_TRIGGER = 0x200000;
const long SPY_STATUS_AUDIO_COMMENT = 0x400000;
const long SPY_STATUS_GPS_DATA = 0x800000;
const long SPY_STATUS_ANALOG_DIGITAL_INPUT = 0x1000000;
const long SPY_STATUS_TEXT_COMMENT = 0x2000000;
const long SPY_STATUS_NETWORK_MESSAGE_TYPE = 0x4000000;
const long SPY_STATUS_VSI_TX_UNDERRUN = 0x8000000;
const long SPY_STATUS_VSI_IFR_CRC_Bit = 0x10000000;
const long SPY_STATUS_INIT_MESSAGE = 0x20000000;
const long SPY_STATUS_HIGH_SPEED_MESSAGE = 0x40000000;
// The second status bitfield
const long SPY_STATUS2_HAS_VALUE = 1;
const long SPY_STATUS2_VALUE_IS_BOOLEAN = 2;
const long SPY_STATUS2_HIGH_VOLTAGE = 4;
const long SPY_STATUS2_LONG_MESSAGE = 8;
Public Enum icsSpyDataStatusBitfield
icsSpyStatusGlobalError = 2 ^ 0
icsSpyStatusTx = 2 ^ 1
icsSpyStatusXtdFrame = 2 ^ 2
icsSpyStatusRemoteFrame = 2 ^ 3
icsSpyStatusErrCRCError = 2 ^ 4
icsSpyStatusCANErrorPassive = 2 ^ 5
icsSpyStatusErrIncompleteFrame = 2 ^ 6
icsSpyStatusErrLostArbitration = 2 ^ 7
icsSpyStatusErrUndefined = 2 ^ 8
icsSpyStatusErrCANBusOff = 2 ^ 9
icsSpyStatusErrCANErrorWarning = 2 ^ 10
icsSpyStatusBusShortedPlus = 2 ^ 11
icsSpyStatusBusShortedGnd = 2 ^ 12
icsSpyStatusCheckSumError = 2 ^ 13
icsSpyStatusErrBadMessageBitTimeError = 2 ^ 14
icsSpyStatusIFRData = 2 ^ 15
icsSpyStatusHardwareCommError = 2 ^ 16
icsSpyStatusExpectedLengthError = 2 ^ 17
icsSpyStatusIncomingNoMatch = 2 ^ 18
icsSpyStatusBreak = 2 ^ 19
icsSpyStatusAVT_VSIRecOverflow = 2 ^ 20
icsSpyStatusTestTrigger = 2 ^ 21
icsSpyStatusAudioCommentType = 2 ^ 22
icsSpyStatusGPSDataValue = 2 ^ 23
icsSpyStatusAnalogDigitalInputValue = 2 ^ 24
icsSpyStatusTextCommentType = 2 ^ 25
icsSpyStatusNetworkMessageType = 2 ^ 26
icsSpyStatusVSI_TxUnderRun = 2 ^ 27
icsSpyStatusVSI_IFR_CRCBit = 2 ^ 28
icsSpyStatusInitMessage = 2 ^ 29
icsSpyStatusHighSpeed = 2 ^ 30
End Enum
Public Enum icsSpyDataStatusBitfield2
icsSpyStatusHasValue = 2 ^ 0
icsSpyStatusValueIsBoolean = 2 ^ 1
icsSpyStatusHighVoltage = 2 ^ 2
icsSpyStatusLongMessage = 2 ^ 3
End Enum
Visual Basic .NET Declares
Public
Enum
icsSpyDataStatusBitfield
icsSpyStatusGlobalError = 2 ^ 0
icsSpyStatusTx = 2 ^ 1
icsSpyStatusXtdFrame = 2 ^ 2
icsSpyStatusRemoteFrame = 2 ^ 3
icsSpyStatusErrCRCError = 2 ^ 4
icsSpyStatusCANErrorPassive = 2 ^ 5
icsSpyStatusErrIncompleteFrame = 2 ^ 6
icsSpyStatusErrLostArbitration = 2 ^ 7
icsSpyStatusErrUndefined = 2 ^ 8
icsSpyStatusErrCANBusOff = 2 ^ 9
icsSpyStatusErrCANErrorWarning = 2 ^ 10
icsSpyStatusBusShortedPlus = 2 ^ 11
icsSpyStatusBusShortedGnd = 2 ^ 12
icsSpyStatusCheckSumError = 2 ^ 13
icsSpyStatusErrBadMessageBitTimeError = 2 ^ 14
icsSpyStatusIFRData = 2 ^ 15
icsSpyStatusHardwareCommError = 2 ^ 16
icsSpyStatusExpectedLengthError = 2 ^ 17
icsSpyStatusIncomingNoMatch = 2 ^ 18
icsSpyStatusBreak = 2 ^ 19
icsSpyStatusAVT_VSIRecOverflow = 2 ^ 20
icsSpyStatusTestTrigger = 2 ^ 21
icsSpyStatusAudioCommentType = 2 ^ 22
icsSpyStatusGPSDataValue = 2 ^ 23
icsSpyStatusAnalogDigitalInputValue = 2 ^ 24
icsSpyStatusTextCommentType = 2 ^ 25
icsSpyStatusNetworkMessageType = 2 ^ 26
icsSpyStatusVSI_TxUnderRun = 2 ^ 27
icsSpyStatusVSI_IFR_CRCBit = 2 ^ 28
icsSpyStatusInitMessage = 2 ^ 29
icsSpyStatusHighSpeed = 2 ^ 30
End
Enum
Public Enum
icsSpyDataStatusBitfield2
icsSpyStatusHasValue = 2 ^ 0
icsSpyStatusValueIsBoolean = 2 ^ 1
icsSpyStatusHighVoltage = 2 ^ 2
icsSpyStatusLongMessage = 2 ^ 3
End Enum
C# Declares
public
enum
eDATA_STATUS_BITFIELD_1
{
SPY_STATUS_GLOBAL_ERR = 0x01,
SPY_STATUS_TX_MSG = 0x02,
SPY_STATUS_XTD_FRAME = 0x04,
SPY_STATUS_REMOTE_FRAME = 0x08,
SPY_STATUS_CRC_ERROR = 0x10,
SPY_STATUS_CAN_ERROR_PASSIVE = 0x20,
SPY_STATUS_INCOMPLETE_FRAME = 0x40,
SPY_STATUS_LOST_ARBITRATION = 0x80,
SPY_STATUS_UNDEFINED_ERROR = 0x100,
SPY_STATUS_CAN_BUS_OFF = 0x200,
SPY_STATUS_CAN_ERROR_WARNING = 0x400,
SPY_STATUS_BUS_SHORTED_PLUS = 0x800,
SPY_STATUS_BUS_SHORTED_GND = 0x1000,
SPY_STATUS_CHECKSUM_ERROR = 0x2000,
SPY_STATUS_BAD_MESSAGE_BIT_TIME_ERROR = 0x4000,
SPY_STATUS_IFR_DATA = 0x8000,
SPY_STATUS_HARDWARE_COMM_ERROR = 0x10000,
SPY_STATUS_EXPECTED_LEN_ERROR = 0x20000,
SPY_STATUS_INCOMING_NO_MATCH = 0x40000,
SPY_STATUS_BREAK = 0x80000,
SPY_STATUS_AVSI_REC_OVERFLOW = 0x100000,
SPY_STATUS_TEST_TRIGGER = 0x200000,
SPY_STATUS_AUDIO_COMMENT = 0x400000,
SPY_STATUS_GPS_DATA = 0x800000,
SPY_STATUS_ANALOG_DIGITAL_INPUT = 0x1000000,
SPY_STATUS_TEXT_COMMENT = 0x2000000,
SPY_STATUS_NETWORK_MESSAGE_TYPE = 0x4000000,
SPY_STATUS_VSI_TX_UNDERRUN = 0x8000000,
SPY_STATUS_VSI_IFR_CRC_Bit = 0x10000000,
SPY_STATUS_INIT_MESSAGE = 0x20000000,
SPY_STATUS_HIGH_SPEED_MESSAGE = 0x40000000,
}
public enum
eDATA_STATUS_BITFIELD_2
{
SPY_STATUS2_HAS_VALUE = 0,
SPY_STATUS2_VALUE_IS_BOOLEAN = 2,
SPY_STATUS2_HIGH_VOLTAGE = 4,
SPY_STATUS2_LONG_MESSAGE = 8,
}
The tables below describe the bitfields.
Table 1 - StatusBitfield Elements
| C/C++ Name | VB Name | Description |
| SPY_STATUS_GLOBAL_ERR | icsSpyStatusGlobalError | This is set if the message has any other error bits set. |
| SPY_STATUS_TX_MSG | icsSpyStatusTx | This is set if the message was transmitted by this device. |
| SPY_STATUS_XTD_FRAME | icsSpyStatusXtdFrame | This is set if the CAN message received or transmitted has an extended (29 bit) identifier. |
| SPY_STATUS_REMOTE_FRAME | icsSpyStatusRemoteFrame | This is set if the CAN message received or transmitted is a remote frame. |
| SPY_STATUS_CRC_ERROR | icsSpyStatusErrCRCError | This is set for J1850 VPW messages which do not have a proper CRC byte. |
| SPY_STATUS_CAN_ERROR_PASSIVE | icsSpyStatusCANErrorPassive | Not used in the neoVI API. |
| SPY_STATUS_INCOMPLETE_FRAME | icsSpyStatusErrIncompleteFrame | This is set for a J1850 VPW message which is received that ended on a non-byte boundary. |
| SPY_STATUS_LOST_ARBITRATION | icsSpyStatusErrLostArbitration | Not used in the neoVI API. |
| SPY_STATUS_UNDEFINED_ERROR | icsSpyStatusErrUndefined | This is an undefined error in the neoVI hardware |
| SPY_STATUS_CAN_BUS_OFF | icsSpyStatusErrCANBusOff | This is set when there is a change in error status of a MCP2510 CAN controller. The bitfield of the error status is stored in data byte 1 of the message structure. A description of this bitfield is included in this topic. |
| SPY_STATUS_CAN_ERROR_WARNING | icsSpyStatusErrCANErrorWarning | Not used in the neoVI API. |
| SPY_STATUS_BUS_SHORTED_PLUS | icsSpyStatusBusShortedPlus | Not used in the neoVI API. |
| SPY_STATUS_BUS_SHORTED_GND | icsSpyStatusBusShortedGnd | Not used in the neoVI API. |
| SPY_STATUS_CHECKSUM_ERROR | icsSpyStatusCheckSumError | Not used in the neoVI API. |
| SPY_STATUS_BAD_MESSAGE_BIT_TIME_ERROR | icsSpyStatusErrBadMessageBitTimeError | This is set for J1850 VPW messages which do not meet the specified bit times for the SOF or bit signals. |
| SPY_STATUS_IFR_DATA | icsSpyStatusIFRData | Not used in the neoVI API. |
| SPY_STATUS_HARDWARE_COMM_ERROR | icsSpyStatusHardwareCommError | Not used in the neoVI API. |
| SPY_STATUS_EXPECTED_LEN_ERROR | icsSpyStatusExpectedLengthError | Not used in the neoVI API. |
| SPY_STATUS_INCOMING_NO_MATCH | icsSpyStatusIncomingNoMatch | Not used in the neoVI API. |
| SPY_STATUS_BREAK | icsSpyStatusBreak | This is set if the J1850 VPW break symbol has been received or is to be transmitted. |
| SPY_STATUS_AVSI_REC_OVERFLOW | icsSpyStatusAVT_VSIRecOverflow | Not used in the neoVI API. |
| SPY_STATUS_TEST_TRIGGER | icsSpyStatusTestTrigger | Not used in the neoVI API. |
| SPY_STATUS_AUDIO_COMMENT | icsSpyStatusAudioCommentType | Not used in the neoVI API. |
| SPY_STATUS_GPS_DATA | icsSpyStatusGPSDataValue | Not used in the neoVI API. |
| SPY_STATUS_ANALOG_DIGITAL_INPUT | icsSpyStatusAnalogDigitalInputValue | Not used in the neoVI API. |
| SPY_STATUS_TEXT_COMMENT | icsSpyStatusTextCommentType | Not used in the neoVI API. |
| SPY_STATUS_NETWORK_MESSAGE_TYPE | icsSpyStatusNetworkMessageType | This is set for all messages received from a vehicle network. |
| SPY_STATUS_VSI_TX_UNDERRUN | icsSpyStatusVSI_TxUnderRun | Not used in the neoVI API. |
| SPY_STATUS_VSI_IFR_CRC_Bit | icsSpyStatusVSI_IFR_CRCBit | Not used in the neoVI API. |
| SPY_STATUS_INIT_MESSAGE | icsSpyStatusInitMessage | This is set if the transmitted message should generate the ISO/Keyword2000 initialization waveform. |
| SPY_STATUS_HIGH_SPEED_MESSAGE | icsSpyStatusHighSpeed | This is set if the transmitted message is transmitted in high speed mode. |
Table 2 - StatusBitfield2 Elements
VB Module: bas_neoVI.bas
C/C++ Header: neovi.h
C/C++ Library File: icsneoVI.lib
DLL File: icsneoVI.dll
VB.Net Module: bas_neoVI.vb
C# Class: icsNeoClass.cs
Examples
Determining if we transmitted a message (This is indicated by icsSpyStatusTx bit set)
If (Msg.StatusBitField And icsSpyStatusTx)
> 0 Then
'// The message was transmitted by us
End If
Transmitting a CAN Extended ID Remote Frame
'// Load the message to be transmitted
ArbID = FF extended remote frame with DLC=4
With stMessagesTx
.ArbIDOrHeader = &HFF
.NumberBytesData = 4
.StatusBitField = icsSpyStatusXtdFrame + icsSpyStatusRemoteFrame
End With
lResult = icsneoTxMessages(m_hObject, stMessagesTx, NETID_HSCAN, 1)
Determining if we there's an error in the message (This is indicated by SPY_STATUS_GLOBAL_ERR bit set)
if (mMsg.StatusBitField & SPY_STATUS_GLOBAL_ERR)
{
// This message has an error in it
}
Determining if we transmitted a message (This is indicated by icsSpyStatusTx bit set)
If
(Msg.StatusBitField And icsSpyDataStatusBitfield.icsSpyStatusTx) > 0 ThenTransmitting a CAN Extended ID Remote Frame
'// Load the message to be transmitted ArbID = FF extended remote frame with DLC=4
Determining
if we there's an error in the message (This is indicated
by SPY_STATUS_GLOBAL_ERR
bit set)
if
(mMsg.StatusBitField & SPY_STATUS_GLOBAL_ERR)
{
//
This message has an error in it
}
| intrepidcs API Documentation - (C) Copyright 2000-2012 Intrepid Control Systems, Inc. (www.intrepidcs.com) |
Last Updated : Friday, March 19, 2010