How to control the CAN transmit Simulink block to send messages on command?

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Jiachen Lu
Jiachen Lu 2021-8-15
评论： Jiachen Lu 2021-8-17
I'm using the CAN transmit block from the Simulink support package for Arduino, and am transmitting messages between two external arduino boards.
How do I specify when to send messages with the CAN transmit block? The only input is for the CAN message frame, and if I don't have a periodically changing signal as in the CAN transmit example, then it continuously transmits the attached message. Please see the attached image illustrating my current block diagram.
Any help would be greatly appreciated.

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Jonas
Jonas 2021-8-16
Put the CAN transmit block inside a Triggered subsystem and provide a Boolean with 'true' when you want to send the message.
Alternatively, use a Function call block and use a function call to trigger then sending of the CAN message.

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