DescriptionResetTypeNameBit/Field
Last Error Code
This is the type of the last error to occur on the CAN bus.
DefinitionValue
No Error0x0
Stuff Error
More than 5 equal bits in a sequence have occurred in a part
of a received message where this is not allowed.
0x1
Format Error
A fixed format part of the received frame has the wrong
format.
0x2
ACK Error
The message transmitted was not acknowledged by another
node.
0x3
Bit 1 Error
When a message is transmitted, the CAN controller monitors
the data lines to detect any conflicts. When the arbitration
field is transmitted, data conflicts are a part of the arbitration
protocol. When other frame fields are transmitted, data
conflicts are considered errors.
A Bit 1 Error indicates that the device wanted to send a High
level (logical 1) but the monitored bus value was Low (logical
0).
0x4
Bit 0 Error
A Bit 0 Error indicates that the device wanted to send a Low
level (logical 0), but the monitored bus value was High (logical
1).
During bus-off recovery, this status is set each time a
sequence of 11 High bits has been monitored. This enables
the CPU to monitor the proceeding of the bus-off recovery
sequence without any disturbances to the bus.
0x5
CRC Error
The CRC checksum was incorrect in the received message,
indicating that the calculated value received did not match
the calculated CRC of the data.
0x6
No Event
When the LEC bit shows this value, no CAN bus event was
detected since the CPU wrote this value to LEC.
0x7
0x0R/WLEC2:0
389June 22, 2010
Texas Instruments-Production Data
Stellaris® LM3S8530 Microcontroller
