A Patch For FlexCAN RX FIFO ID table structure

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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

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%3CLINGO-SUB%20id%3D%22lingo-sub-1104136%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3EFlexCAN%20RX%20FIFO%20ID%20%E3%83%86%E3%83%BC%E3%83%96%E3%83%AB%E6%A7%8B%E9%80%A0%E3%81%AE%E3%83%91%E3%83%83%E3%83%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%20%E3%81%AE%20flexcan%20%E3%83%89%E3%83%A9%E3%82%A4%E3%83%90%E3%83%BC%E3%81%AB%E3%81%AF%E3%83%9E%E3%82%AF%E3%83%AD%E5%AE%9A%E7%BE%A9%E3%81%AE%E5%95%8F%E9%A1%8C%E3%81%8C%E3%81%82%E3%82%8A%E3%80%81RX_FIFO_STD_MASK_TYPE_B%2FC%20%E3%81%AE%E3%83%9E%E3%82%AF%E3%83%AD%E3%81%AF%20maco%20FLEXCAN_ID_STD(id)%20%E3%81%AB%E5%9F%BA%E3%81%A5%E3%81%84%E3%81%A6%E5%AE%9A%E7%BE%A9%E3%81%95%E3%82%8C%E3%81%A6%E3%81%84%E3%81%BE%E3%81%97%E3%81%9F%E3%80%82%3C%2FP%3E%3CP%3E%23define%20FLEXCAN_RX_FIFO_STD_MASK_TYPE_B_HIGH(ID%2C%20RTR%2C%20IDE)%20%5C%20%3CBR%20%2F%3E%20(((uint32_t)((uint32_t)(rtr)%20%26lt%3B%26lt%3B%2031)%20%7C(uint32_t)((uint32_t)(%E4%BA%95%E5%87%BA)%20%26lt%3B%26lt%3B%2030))%7C%5C%20%3CBR%20%2F%3E%20(FLEXCAN_ID_STD(%E5%90%8C)%26lt%3B%26lt%3B16))%2F**%26lt%3B%20%E6%A8%99%E6%BA%96%20Rx%20FIFO%20%E3%83%9E%E3%82%B9%E3%82%AF%20%E3%83%98%E3%83%AB%E3%83%91%E3%83%BC%20%E3%83%9E%E3%82%AF%E3%83%AD%20%E3%82%BF%E3%82%A4%E3%83%97%20B%20%E4%B8%8A%E9%83%A8%E3%83%98%E3%83%AB%E3%83%91%E3%83%BC%20%E3%83%9E%E3%82%AF%E3%83%AD%E3%80%82*%2F%3C%2FP%3E%3CP%3E%E3%81%97%E3%81%8B%E3%81%97%E3%80%81FLEXCAN_ID_STD(id)%20%E3%81%AF%20flexCAN%20Message%20Buffer%20%E6%A7%8B%E9%80%A0%E4%BD%93%E3%81%A7%E5%AE%9A%E7%BE%A9%E3%81%95%E3%82%8C%E3%81%A6%E3%81%84%E3%82%8B%E3%81%9F%E3%82%81%E3%80%81%E4%BB%95%E6%A7%98%E3%81%AB%E3%82%88%E3%82%8C%E3%81%B0%20FLEXCAN_ID_STD(id)%20%E3%81%AF%20%22id%22%20%E3%82%92%2018%20%E5%B7%A6%E3%82%B7%E3%83%95%E3%83%88%E3%81%97%E3%81%9F%E5%80%A4%E3%81%A7%E3%81%99%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%E4%B8%80%E6%96%B9%E3%80%81RX%20FIFO%20ID%E3%83%86%E3%83%BC%E3%83%96%E3%83%AB%E6%A7%8B%E9%80%A0%E3%81%AE%E5%A0%B4%E5%90%88%E3%80%81Type%20B%20%2F%20C%E3%81%AE%E4%BB%95%E6%A7%98%E3%81%AF%E7%95%B0%E3%81%AA%E3%82%8A%E3%81%BE%E3%81%99%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%20sty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最終更新日:
‎11-15-2016 07:10 PM
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