了解CAN过滤器

Question

我无法理解stm32f4-discovery的CAN过滤器配置。

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运作的吗？或者是否在任何地方记录？我无法找到它。

Answer 1

就文件而言：

Reference Manual，第32节bxCAN

Std Peripheral Lib for F4，在zip文件中将doxygen文档的编译版本作为CHM（stm32f4xx_dsp_stdperiph_lib_um.chm）。