https://community.nxp.com/t5/S32K/s32k148-CAN%E6%95%B0%E6%8D%AE%E6%8E%A5%E6%94%B6-MB%E7%BC%93%E5%AD%98%E8%A6%86%E7%9B%96%E9%A1%BA%E5%BA%8F/m-p/1859319#M34962 <P><A href="mailto:Hi@008kai" target="_blank">Hi@008kai</A></P> <P>细节去看数据手册如下章节</P> <P>事实上这个步骤是由用户去完成的，根据MB的CODE区域去判断MB当前的状态然后实施相应的动作。如果MB4和MB5同时都处在非空闲的状态，那么CPU是不会自动覆盖它的，你要等这两个MB有空闲了再执行相应的动作。</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Senlent_0-1714964011972.png" style="width: 446px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/277142i32EBFAC3C2940632/image-dimensions/446x379?v=v2" width="446" height="379" role="button" title="Senlent_0-1714964011972.png" alt="Senlent_0-1714964011972.png" /></span></P> <P>&nbsp;</P> Mon, 06 May 2024 02:59:22 GMT Senlent 2024-05-06T02:59:22Z https://community.nxp.com/t5/S32K/s32k148-CAN%E6%95%B0%E6%8D%AE%E6%8E%A5%E6%94%B6-MB%E7%BC%93%E5%AD%98%E8%A6%86%E7%9B%96%E9%A1%BA%E5%BA%8F/m-p/1857091#M34807 <P>在大量can报文收发场景，通过设置过滤规则，假如0x12d报文被设置为进入编号为4和5的MB，如果在某个时刻MB4和MB5都满了，那么下一帧12d报文会先覆盖MB5还是MB4?</P> Tue, 30 Apr 2024 01:24:35 GMT https://community.nxp.com/t5/S32K/s32k148-CAN%E6%95%B0%E6%8D%AE%E6%8E%A5%E6%94%B6-MB%E7%BC%93%E5%AD%98%E8%A6%86%E7%9B%96%E9%A1%BA%E5%BA%8F/m-p/1857091#M34807 008kai 2024-04-30T01:24:35Z https://community.nxp.com/t5/S32K/s32k148-CAN%E6%95%B0%E6%8D%AE%E6%8E%A5%E6%94%B6-MB%E7%BC%93%E5%AD%98%E8%A6%86%E7%9B%96%E9%A1%BA%E5%BA%8F/m-p/1859319#M34962 <P><A href="mailto:Hi@008kai" target="_blank">Hi@008kai</A></P> <P>细节去看数据手册如下章节</P> <P>事实上这个步骤是由用户去完成的，根据MB的CODE区域去判断MB当前的状态然后实施相应的动作。如果MB4和MB5同时都处在非空闲的状态，那么CPU是不会自动覆盖它的，你要等这两个MB有空闲了再执行相应的动作。</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Senlent_0-1714964011972.png" style="width: 446px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/277142i32EBFAC3C2940632/image-dimensions/446x379?v=v2" width="446" height="379" role="button" title="Senlent_0-1714964011972.png" alt="Senlent_0-1714964011972.png" /></span></P> <P>&nbsp;</P> Mon, 06 May 2024 02:59:22 GMT https://community.nxp.com/t5/S32K/s32k148-CAN%E6%95%B0%E6%8D%AE%E6%8E%A5%E6%94%B6-MB%E7%BC%93%E5%AD%98%E8%A6%86%E7%9B%96%E9%A1%BA%E5%BA%8F/m-p/1859319#M34962 Senlent 2024-05-06T02:59:22Z