了解 CAN 过滤器 [英] Understanding the CAN filters

问题描述

我无法理解 stm32f4-discovery 的 CAN 过滤器配置.

I am unable to understand the CAN filter configuration for the stm32f4-discovery.

CAN_FilterInitStructure.CAN_FilterNumber = 0;
CAN_FilterInitStructure.CAN_FilterMode = CAN_FilterMode_IdMask;
CAN_FilterInitStructure.CAN_FilterScale = CAN_FilterScale_32bit;
CAN_FilterInitStructure.CAN_FilterIdHigh = 0x0000;
CAN_FilterInitStructure.CAN_FilterIdLow = 0x0000;
CAN_FilterInitStructure.CAN_FilterMaskIdHigh = 0x0000;
CAN_FilterInitStructure.CAN_FilterMaskIdLow = 0x0000;
CAN_FilterInitStructure.CAN_FilterFIFOAssignment = 0;
CAN_FilterInitStructure.CAN_FilterActivation = ENABLE;
CAN_FilterInit(&CAN_FilterInitStructure);

有人可以向我解释这是如何工作的吗?还是在任何地方都有记录?我找不到它.

could some one explain to me how this works? or is it documented in any place? I am unable to find it.

推荐答案

就文档而言:

参考手册，第 32 节 bxCAN

Reference Manual, section 32 bxCAN

F4 标准外设库，在 zip 文件中有一个编译版本的 doxygen 文档作为 CHM (stm32f4xx_dsp_stdperiph_lib_um.chm).

Std Peripheral Lib for F4, has a compiled version of the doxygen documentaion as CHM (stm32f4xx_dsp_stdperiph_lib_um.chm) in the zip file.

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