https://community.nxp.com/t5/Other-NXP-Products/%E6%9C%89%E5%85%B3TJA1145T-FD%E4%BC%91%E7%9C%A0%E5%94%A4%E9%86%92%E9%97%AE%E9%A2%98/m-p/2267515#M30890 <P>Hi,</P> <P>To recover without cycling BAT:<BR />Power up VIO and VCC.<BR />Read Main Status (check FSMS). If set, re‑configure wake and partial networking.<BR />Clear event flags (0x61–0x64).<BR />Set MC=111 (Normal) and enable CAN via CMC=01 or 10.<BR />Ensure TXD is HIGH and confirm CTS=1 before starting CAN.</P> <P>If WAKE is used, it must see a valid edge (e.g. follow KL15). BAT should remain permanently connected.</P> <P>BRs, Tomas</P> Mon, 22 Dec 2025 08:23:47 GMT TomasVaverka 2025-12-22T08:23:47Z https://community.nxp.com/t5/Other-NXP-Products/%E6%9C%89%E5%85%B3TJA1145T-FD%E4%BC%91%E7%9C%A0%E5%94%A4%E9%86%92%E9%97%AE%E9%A2%98/m-p/2267134#M30876 <P>1.使用S32K通过SPI配置好normal模式，收发器正常工作</P><P>2.检测到KL15电下电，把1145配置为sleep模式，由于不想使用CAN 唤醒方式，所以使能的是WAKE引脚上升沿唤醒，但是WAKE引脚上升沿唤醒WAKE引脚接的是下拉，这期间BAT引脚一直供电</P><P>3.成功进入sleep模式后，s32k芯片下电，kl15上电后，s32k正常工作，执行1145配置函数，配置为normal模式，但是发现收发器不能正常工作</P><P>只有当bat引脚下电重新上电后，再通过S32K配置才能正常</P><P>这个是1145芯片的特性，还是哪里配置的不正确，是否需要WAKE引脚跟随KL15一起上电唤醒，或者BAT引脚跟随KL15状态</P> Sat, 20 Dec 2025 07:07:45 GMT https://community.nxp.com/t5/Other-NXP-Products/%E6%9C%89%E5%85%B3TJA1145T-FD%E4%BC%91%E7%9C%A0%E5%94%A4%E9%86%92%E9%97%AE%E9%A2%98/m-p/2267134#M30876 lyq 2025-12-20T07:07:45Z https://community.nxp.com/t5/Other-NXP-Products/%E6%9C%89%E5%85%B3TJA1145T-FD%E4%BC%91%E7%9C%A0%E5%94%A4%E9%86%92%E9%97%AE%E9%A2%98/m-p/2267515#M30890 <P>Hi,</P> <P>To recover without cycling BAT:<BR />Power up VIO and VCC.<BR />Read Main Status (check FSMS). If set, re‑configure wake and partial networking.<BR />Clear event flags (0x61–0x64).<BR />Set MC=111 (Normal) and enable CAN via CMC=01 or 10.<BR />Ensure TXD is HIGH and confirm CTS=1 before starting CAN.</P> <P>If WAKE is used, it must see a valid edge (e.g. follow KL15). BAT should remain permanently connected.</P> <P>BRs, Tomas</P> Mon, 22 Dec 2025 08:23:47 GMT https://community.nxp.com/t5/Other-NXP-Products/%E6%9C%89%E5%85%B3TJA1145T-FD%E4%BC%91%E7%9C%A0%E5%94%A4%E9%86%92%E9%97%AE%E9%A2%98/m-p/2267515#M30890 TomasVaverka 2025-12-22T08:23:47Z