Documentation

All

Status information of the CAN channel and the controller. The individual signals can be enabled or disabled in the driver mask. See the "Parameters" section.

Bus Reco

With "1" impulse, the Status block will attempt to recover from a BUS OFF state. After bus restart, the value should be set to zero.

Data Types:uint32

Module ID

Specifies the ID of the IO61X module to which this driver block should be connected. It must correspond to the module ID of the according setup block. Check the setup block help for more details.

Sample Time

Defines the base sample time at which this driver block gets its sample hit. It can also be set to -1 for inherited sample time. The units are in seconds.

Get Status for Channel

Choose the CAN-FD channel to which this driver block should give status information.

Status Selection

Choose which types of status information to access with this driver block. The selectable status outputs for this block in the Status-Tab will change accordingly.

• Port: Status information about the CAN channel to which this driver block is mapped. The term Port is used for Channel with this parameter in order to maintain backwards compatibility.

• Controller: Configuration information about the CAN controller of the channel to which this driver block is mapped.

• All: Both of the above.

Bus OFF

Defines if and when the CAN controller will try to recover from a "BUS OFF" status.

• Off: The bus will stay OFF, no recovery is attempted.

• Auto: The Status block will restart the CAN stack for all channels to recover from the BUS OFF state.

• Manual: The "Bus Reco" Input is added. Set to "1" for a Manual bus restart.

Here, the user can select the required status signals. The selected signals appear as block outputs.

Average Bus Load (0 – 100%)

Average bus load in percent. The CAN controller computes the bus load every 4096 bits. In most cases it is sufficient to request the bus load once per second. For example, for 500 kBaud: 500kBaud = 500bit/ms => 2µs/bit * 4096bit = 8.2ms update time for the bus load.

Operating Mode

• 0: Current operating mode of the CAN controller is Lowspeed (LS).

• 1: Current operating mode of the CAN controller is Highspeed (HS).

Prescaler (BPS)

This value corresponds to the BPS value of the selected baud rate in the corresponding setup block.

Time Segment 1 (TSEG1)

This value corresponds to the TSEG1 value of the selected baud rate in the corresponding setup block.

Time Segment 2 (TSEG2)

This value corresponds to the TSEG2 value of the selected baud rate in the corresponding setup block.

Synchronization Jump Width (SJW)

This value corresponds to the SJW value of the selected baud rate in the corresponding setup block.

Transmission Pending

The CAN controller is sending a message.

Data Overrun Occurred

This flag will be set if the receive queue is full and the CAN controller cannot write the next received message to the queue. To reset the flag, the controller must be stopped and started again.

Error Warning Limit Exceeded

Each CAN controller has an internal error counter which counts physical bus problems.

• 0: Error counter value is lower than the error warning level (<96).

• 1: Error counter has reached the error warning level limit (≥ 96).

Bus Off Status

Uses the same internal error counter as the warning output above:

• 0: Error counter value is lower than the maximum error level (< 255).

• 1: Error counter has reached the maximum error level limit (= 255). Bus will be shut down.

Init Mode Active

• 0: The CAN controller is in the initialization phase and currently is not started.

• 1: The CAN controller is started.

Bus Coupling Error

Indicates a bus coupling error if CAN LS is used.

Bus Recovery Counter

This uint32 counter is incremented each time the bus-recovery process of the CAN channel is finished.