Transmit queue buffer size
R2026bTransmit queue length for SocketCAN interface
Model Configuration Pane: Hardware Implementation / Hardware board settings / Target hardware resources / Groups / CAN
Description
Specify the number of CAN frames that can be queued for transmission on the CAN interface.
The transmit queue stores outgoing CAN messages before they are placed on the bus. Increasing the queue size allows the system to handle bursts of CAN messages without dropping frames. However, larger values increase memory usage and may introduce additional transmission latency.
Dependencies
To enable this parameter, set Interface configuration to
Specify via Simulink. To enable this parameter for additional
interfaces, set Number of interfaces to a value greater than or equal
to the interface number.
Settings
65536 (default) | positive integerEnter the transmit queue buffer size as a positive integer.
65536(default)Default queue size of 65536 frames. This provides a large buffer suitable for most real-time applications where high-frequency CAN transmission is required.
- Custom value
Specify a custom queue size. Smaller values (for example, 1000) reduce memory usage but may cause frame drops under high load. Larger values provide more buffering at the cost of increased memory and potential latency.
Recommended Settings
No recommendation.
Programmatic Use
| No programmatic use is available. |
Version History
Introduced in R2019b
