topic Re: S32K344 Messaging Unit in S32K

S32K344 Messaging Unit

1260784871 — Wed, 01 Mar 2023 05:43:04 GMT

1、According to the above description, MU Reset can trigger an interrupt, but the corresponding interrupt service function was not found？

2、Help to tell the corresponding interrupt service function

Re: S32K344 Messaging Unit

VaneB — Wed, 01 Mar 2023 22:06:12 GMT

Hi @1260784871

The MU has 9 interrupt sources on each side. There are 1 general-purpose interrupt and 8 RX/TX interrupt sources.

The reset has a different function from the MU or system perspective. Please refer to section 39.3.3 Resets of S32K3xx Reference Manual, Rev. 5.

B.R.

VaneB

Re: S32K344 Messaging Unit

1260784871 — Thu, 02 Mar 2023 12:33:02 GMT

MUB_CR【MURIE】的作用是什么？使能后不是应该触发中断吗？触发的是哪个中断呢？

Re: S32K344 Messaging Unit

VaneB — Thu, 02 Mar 2023 22:31:23 GMT

Hi @1260784871

Setting the MUR bit to 1 and enabled with the MURIE bit resets both the MUA-side and MUB-side, forcing all control and status registers to return to their default values.

Re: S32K344 Messaging Unit

1260784871 — Mon, 06 Mar 2023 03:26:46 GMT

我问的是中断！文档里面不是说会触发中断吗？触发哪个中断

Re: S32K344 Messaging Unit

VaneB — Mon, 06 Mar 2023 17:26:54 GMT

Hi @1260784871

Sorry for the misunderstanding. It seems I am losing information due to the translation. Could you help me keep the conversation going in English?