A Patch For FlexCAN RX FIFO ID table structure

取消
显示结果 
显示  仅  | 搜索替代 
您的意思是: 

A Patch For FlexCAN RX FIFO ID table structure

A Patch For FlexCAN RX FIFO ID table structure

There was a macro definition issue in the flexcan driver of ksdk 2.0, the macros of RX_FIFO_STD_MASK_TYPE_B/C were defined based on maco FLEXCAN_ID_STD(id), for example:

#define FLEXCAN_RX_FIFO_STD_MASK_TYPE_B_HIGH(id, rtr, ide) \
(((uint32_t)((uint32_t)(rtr) << 31) | (uint32_t)((uint32_t)(ide) << 30)) | \
(FLEXCAN_ID_STD(id) << 16)) /**< Standard Rx FIFO Mask helper macro Type B upper part helper macro. */

but FLEXCAN_ID_STD(id) is defined for flexCAN Message Buffer structure, so FLEXCAN_ID_STD(id)  is a value of "id" left-shifted by 18,  according to the spec.

169566_169566.pngpastedImage_1.png

while for RX FIFO ID table structure, the spec of Type B/C is different.

169567_169567.pngpastedImage_2.png

169568_169568.pngpastedImage_3.png

so we should use the value of id directly to define the type B and type C Rx Frame Identifier. For example,

#define FLEXCAN_RX_FIFO_STD_MASK_TYPE_B_HIGH(id, rtr, ide) \
(((uint32_t)((uint32_t)(rtr) << 31) | (uint32_t)((uint32_t)(ide) << 30)) | \
((id & 0x7FF) << 19)) /**< Standard Rx FIFO Mask helper macro Type B upper part helper macro. */

 

This patch doesn't affect FlexCAN operation related with message buffers , neither with RX FIFO A type ID table.

 

Please kindly refer to the attachment for details.

 

Sorry for the inconvenience that has caused.

 

-Kan

标签 (1)
标记 (2)
附件
%3CLINGO-SUB%20id%3D%22lingo-sub-1104136%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3EFlexCAN%20RX%20FIFO%20ID%20%E8%A1%A8%E7%BB%93%E6%9E%84%E7%9A%84%E8%A1%A5%E4%B8%81%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1104136%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%26lt%3Bmeta%20http-equiv%3D%22Content-Type%22%20content%3D%22text%2Fhtml%3B%20charset%3Dutf-8%22%20%2F%26gt%3B%0A%3CP%3Eksdk%202.0%E7%9A%84flexcan%E9%A9%B1%E5%8A%A8%E5%AD%98%E5%9C%A8%E5%AE%8F%E5%AE%9A%E4%B9%89%E9%97%AE%E9%A2%98%EF%BC%8CRX_FIFO_STD_MASK_TYPE_B%2FC%E7%9A%84%E5%AE%8F%E6%98%AF%E5%9F%BA%E4%BA%8Emaco%20FLEXCAN_ID_STD(id)%E5%AE%9A%E4%B9%89%E7%9A%84%EF%BC%8C%E4%BE%8B%E5%A6%82%EF%BC%9A%3C%2FP%3E%3CP%3E%23%E5%AE%9A%E4%B9%89FLEXCAN_RX_FIFO_STD_MASK_TYPE_B_HIGH%EF%BC%88id%EF%BC%8Crtr%EF%BC%8Cide%EF%BC%89%5C%3CBR%20%2F%3E%20%EF%BC%88%EF%BC%88%EF%BC%88uint32_t%EF%BC%89%EF%BC%88%EF%BC%88uint32_t%EF%BC%89%EF%BC%88rtr%EF%BC%89%26lt%3B%26lt%3B%2031%EF%BC%89%7C%20%EF%BC%88uint32_t%EF%BC%89%EF%BC%88%EF%BC%88uint32_t%EF%BC%89%EF%BC%88ide%EF%BC%89%26lt%3B%26lt%3B%2030%EF%BC%89%EF%BC%89%7C%20%5C%3CBR%20%2F%3E%20(FLEXCAN_ID_STD(id)%20%26lt%3B%26lt%3B%2016))%20%2F**%26lt%3B%20%E6%A0%87%E5%87%86%20Rx%20FIFO%20Mask%20%E8%BE%85%E5%8A%A9%E5%AE%8F%20B%20%E5%9E%8B%E4%B8%8A%E9%83%A8%E8%BE%85%E5%8A%A9%E5%AE%8F%E3%80%82*%2F%3C%2FP%3E%3CP%3E%E4%BD%86%E6%98%AF%20FLEXCAN_ID_STD(id)%20%E6%98%AF%E4%B8%BA%20flexCAN%20%E6%B6%88%E6%81%AF%E7%BC%93%E5%86%B2%E5%8C%BA%E7%BB%93%E6%9E%84%E5%AE%9A%E4%B9%89%E7%9A%84%EF%BC%8C%E5%9B%A0%E6%AD%A4%E6%A0%B9%E6%8D%AE%E8%A7%84%E8%8C%83%EF%BC%8CFLEXCAN_ID_STD(id)%20%E6%98%AF%E2%80%9Cid%E2%80%9D%E5%B7%A6%E7%A7%BB%2018%20%E7%9A%84%E5%80%BC%E3%80%82%3C%2FP%3E%3CP%3E%3CSPAN%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22169566_169566.png%22%3E%3Cspan%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22169566_169566.png%22%20style%3D%22width%3A%20658px%3B%22%3E%3Cimg%20src%3D%22https%3A%2F%2Fcommunity.nxp.com%2Ft5%2Fimage%2Fserverpage%2Fimage-id%2F117422iD77EC09DAE437D1D%2Fimage-size%2Flarge%3Fv%3Dv2%26amp%3Bpx%3D999%22%20role%3D%22button%22%20title%3D%22169566_169566.png%22%20alt%3D%22169566_169566.png%22%20%2F%3E%3C%2Fspan%3E%3C%2FSPAN%3E%3CSPAN%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22pastedImage_1.png%22%3E%3Cspan%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22pastedImage_1.png%22%20style%3D%22width%3A%20658px%3B%22%3E%3Cimg%20src%3D%22https%3A%2F%2Fcommunity.nxp.com%2Ft5%2Fimage%2Fserverpage%2Fimage-id%2F23358i764EC2F3E8E1690B%2Fimage-size%2Flarge%3Fv%3Dv2%26amp%3Bpx%3D999%22%20role%3D%22button%22%20title%3D%22pastedImage_1.png%22%20alt%3D%22pastedImage_1.png%22%20%2F%3E%3C%2Fspan%3E%3C%2FSPAN%3E%3C%2FP%3E%3CP%3E%E8%80%8C%E5%AF%B9%E4%BA%8ERX%20FIFO%20ID%E8%A1%A8%E7%BB%93%E6%9E%84%EF%BC%8CType%20B%2FC%E7%9A%84%E8%A7%84%E6%A0%BC%E6%9C%89%E6%89%80%E4%B8%8D%E5%90%8C%E3%80%82%3C%2FP%3E%3CP%3E%3CSPAN%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22169567_169567.png%22%3E%3Cspan%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22169567_169567.png%22%20style%3D%22width%3A%20662px%3B%22%3E%3Cimg%20src%3D%22https%3A%2F%2Fcommunity.nxp.com%2Ft5%2Fimage%2Fserverpage%2Fimage-id%2F117423iE498BBC590A6888D%2Fimage-size%2Flarge%3Fv%3Dv2%26amp%3Bpx%3D999%22%20role%3D%22button%22%20title%3D%22169567_169567.png%22%20alt%3D%22169567_169567.png%22%20%2F%3E%3C%2Fspan%3E%3C%2FSPAN%3E%3CSPAN%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22pastedImage_2.png%22%3E%3Cspan%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22pastedImage_2.png%22%20style%3D%22width%3A%20662px%3B%22%3E%3Cimg%20src%3D%22https%3A%2F%2Fcommunity.nxp.com%2Ft5%2Fimage%2Fserverpage%2Fimage-id%2F8866i678CD7FC41FF56EE%2Fimage-size%2Flarge%3Fv%3Dv2%26amp%3Bpx%3D999%22%20role%3D%22button%22%20title%3D%22pastedImage_2.png%22%20alt%3D%22pastedImage_2.png%22%20%2F%3E%3C%2Fspan%3E%3C%2FSPAN%3E%3C%2FP%3E%3CP%3E%3CSPAN%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22169568_169568.png%22%3E%3Cspan%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22169568_169568.png%22%20style%3D%22width%3A%20646px%3B%22%3E%3Cimg%20src%3D%22https%3A%2F%2Fcommunity.nxp.com%2Ft5%2Fimage%2Fserverpage%2Fimage-id%2F117424iBA2B2F40D58F606A%2Fimage-size%2Flarge%3Fv%3Dv2%26amp%3Bpx%3D999%22%20role%3D%22button%22%20title%3D%22169568_169568.png%22%20alt%3D%22169568_169568.png%22%20%2F%3E%3C%2Fspan%3E%3C%2FSPAN%3E%3CSPAN%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22pastedImage_3.png%22%3E%3Cspan%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22pastedImage_3.png%22%20style%3D%22width%3A%20646px%3B%22%3E%3Cimg%20src%3D%22https%3A%2F%2Fcommunity.nxp.com%2Ft5%2Fimage%2Fserverpage%2Fimage-id%2F8903i30B5FFADA998DC0C%2Fimage-size%2Flarge%3Fv%3Dv2%26amp%3Bpx%3D999%22%20role%3D%22button%22%20title%3D%22pastedImage_3.png%22%20alt%3D%22pastedImage_3.png%22%20%2F%3E%3C%2Fspan%3E%3C%2FSPAN%3E%3C%2FP%3E%3CP%3E%E6%89%80%E4%BB%A5%E6%88%91%E4%BB%AC%E5%BA%94%E8%AF%A5%E7%9B%B4%E6%8E%A5%E4%BD%BF%E7%94%A8id%E7%9A%84%E5%80%BC%E6%9D%A5%E5%AE%9A%E4%B9%89B%E7%B1%BB%E5%9E%8B%E5%92%8CC%E7%B1%BB%E5%9E%8BRx%E5%B8%A7%E6%A0%87%E8%AF%86%E7%AC%A6%E3%80%82%E4%BE%8B%E5%A6%82%EF%BC%8C%3C%2FP%3E%3CP%3E%23%E5%AE%9A%E4%B9%89FLEXCAN_RX_FIFO_STD_MASK_TYPE_B_HIGH%EF%BC%88id%EF%BC%8Crtr%EF%BC%8Cide%EF%BC%89%5C%3CBR%20%2F%3E%20%EF%BC%88%EF%BC%88%EF%BC%88uint32_t%EF%BC%89%EF%BC%88%EF%BC%88uint32_t%EF%BC%89%EF%BC%88rtr%EF%BC%89%26lt%3B%26lt%3B%2031%EF%BC%89%7C%20%EF%BC%88uint32_t%EF%BC%89%EF%BC%88%EF%BC%88uint32_t%EF%BC%89%EF%BC%88ide%EF%BC%89%26lt%3B%26lt%3B%2030%EF%BC%89%EF%BC%89%7C%20%5C%3CBR%20%2F%3E%20((id%20%26amp%3B%200x7FF)%20%26lt%3B%26lt%3B%2019))%20%2F**%26lt%3B%20%E6%A0%87%E5%87%86%20Rx%20FIFO%20Mask%20%E8%BE%85%E5%8A%A9%E5%AE%8F%20B%20%E5%9E%8B%E4%B8%8A%E9%83%A8%E8%BE%85%E5%8A%A9%E5%AE%8F%E3%80%82*%2F%3C%2FP%3E%3CP%20style%3D%22min-height%3A%208pt%3B%20padding%3A%200px%3B%22%3E%26nbsp%3B%3C%2FP%3E%3CP%3E%E6%AD%A4%E8%A1%A5%E4%B8%81%E4%B8%8D%E4%BC%9A%E5%BD%B1%E5%93%8D%E4%B8%8E%E6%B6%88%E6%81%AF%E7%BC%93%E5%86%B2%E5%8C%BA%E7%9B%B8%E5%85%B3%E7%9A%84%20FlexCAN%20%E6%93%8D%E4%BD%9C%EF%BC%8C%E4%B9%9F%E4%B8%8D%E4%BC%9A%E5%BD%B1%E5%93%8D%20RX%20FIFO%20A%20%E7%B1%BB%E5%9E%8B%20ID%20%E8%A1%A8%E3%80%82%3C%2FP%3E%3CP%20style%3D%22min-height%3A%208pt%3B%20padding%3A%200px%3B%22%3E%26nbsp%3B%3C%2FP%3E%3CP%3E%E8%AF%A6%E6%83%85%E8%AF%B7%E5%8F%82%E9%98%85%E9%99%84%E4%BB%B6%E3%80%82%3C%2FP%3E%3CP%20style%3D%22min-height%3A%208pt%3B%20padding%3A%200px%3B%22%3E%26nbsp%3B%3C%2FP%3E%3CP%3E%E5%AF%B9%E4%BA%8E%E7%94%B1%E6%AD%A4%E9%80%A0%E6%88%90%E7%9A%84%E4%B8%8D%E4%BE%BF%EF%BC%8C%E6%88%91%E4%BB%AC%E6%B7%B1%E6%84%9F%E6%8A%B1%E6%AD%89%E3%80%82%3C%2FP%3E%3CP%20style%3D%22min-height%3A%208pt%3B%20padding%3A%200px%3B%22%3E%26nbsp%3B%3C%2FP%3E%3CP%3E-Kan%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-LABS%20id%3D%22lingo-labs-1104136%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CLINGO-LABEL%3E%E6%A6%82%E8%BF%B0%3C%2FLINGO-LABEL%3E%3C%2FLINGO-LABS%3E
无评分
版本历史
最后更新:
‎11-15-2016 07:10 PM
更新人: