ICP DAS USA I-7565M-HS, Руководство пользователя

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I-7565M-HS USB to CAN converter User Manual (version 1.0.0) Page: 84
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7.3. CAN Status Register
Bit Symbol Value Description
2:0 LEC Last error code
Type of the last error to occur on the CAN Bus.The LEC field holds
a code which indicates the type of the last error to occur on the CAN
Bus.
0x0 No error.
0x1 Stuff error : More than 5 equal bits in a sequence have occurred in
a part of a received message where this is not allowed.
0x2 Form error : A fixed format part of a received frame has the wrong
format.
0x3 AckError : The message this CAN core transmitted was not
acknowledged.
0x4 Bit1Error : During the transmission of a message (with the
exception of the arbitration field), the device wanted to send a
HIGH/recessive level (bit of logical value ‘1’), but the monitored bus
value was LOW/dominant.
0x5 Bit0Error : During the transmission of a message (or acknowledge
bit, or active error flag, or overload flag), the device wanted to send
a LOW/dominant level (data or identifier bit logical value ‘0’), but the
monitored Bus value was HIGH/recessive.
0x6 CRCError : The CRC checksum was incorrect in the message
received.
0x7 Unused : No CAN Bus event was detected
3 TXOK Transmitted a message successfully.
0 No message has been successfully transmitted.
1 A message has been successfully transmitted.
4 RXOK Received a message successfully
0 No message has been successfully received
1 A message has been successfully received independent of the
result of acceptance filtering.
5 EPASS Error passive
0 The CAN controller is in the error active state.
1 The CAN controller is in the error passive state as defined in the
CAN 2.0 specification.
6 EWARN Warning status
0 Both error counters are below the error warning limit of 96.
1 At least one of the error counters in the Error Counter Register has
reached the error warning limit of 96.
7 BOFF Busoff status
0 The CAN module is not in busoff state.
1 The CAN controller is in busoff state.
31:8 - - Reserved