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TMS320F28335: CAN邮箱发送失败,如何取消发送

Part Number: TMS320F28335


在开发板上利用CAN通信发送数据,配置了四个发送邮箱。外部没有接入接收设备,那么邮箱会一直尝试发送,请问怎么取消发送呢?

利用CANTRR寄存器可以取消其中三个低优先级的邮箱(此时这三个低优先级的邮箱没有进行消息处理),但是高优先级的邮箱没法取消。