Other NXP ProductsのトピックRe: TJA1145 Selective wake up

TJA1145 Selective wake up

CCG — Wed, 23 Aug 2023 09:01:18 GMT

After entering sleep,ret=SPI_read(0x22); ret=0x28,send a CAN frame with ID 121,the MCU is awakened.

But,After entering sleep,ret=SPI_read(0x22); ret=0x28,send a CAN frame with ID not 121,the MCU cannot awakened.then,ret=SPI_read(0x22); ret=0x30. COSCS=1,CBSS=0;

and if you follw the previous send a CAN frame with ID 121,the MCU cannot awakened too.

Re: TJA1145 Selective wake up

guoweisun — Wed, 23 Aug 2023 08:17:13 GMT

我看你写的，你是想要什么结果？

：

After entering sleep,ret=SPI_read(0x22); ret=0x28,send a CAN frame with ID 121,the MCU is awakened.

But,After entering sleep,ret=SPI_read(0x22); ret=0x28,send a CAN frame with ID not 121,the MCU cannot awakened.then,ret=SPI_read(0x22); ret=0x30. COSCS=1,CBSS=0;

and if you follw the previous send a CAN frame with ID 121,the MCU cannot awakened too.

Re: TJA1145 Selective wake up

CCG — Wed, 23 Aug 2023 08:25:04 GMT

怎样才能消除错误帧对特定帧的影响。当进入睡眠后，发送错误帧后，再发送特定帧也能唤醒。而不是只能发送特定帧，发送错误帧后，再发送特定帧就不能唤醒

Re: TJA1145 Selective wake up

guoweisun — Mon, 28 Aug 2023 00:37:46 GMT

---当进入睡眠后，发送错误帧后，再发送特定帧也能唤醒。而不是只能发送特定帧，发送错误帧后，再发送特定帧就不能唤醒

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Furthermore a frame on the bus needs to be free of CRC, stuff and form errors to be a valid WUF.

Any error after the CRC delimiter is ignored and does not invalidate a received WUF.

Re: TJA1145 Selective wake up

franz86 — Fri, 09 Aug 2024 11:07:43 GMT

I have the exact same issue on my board. Were you able to fix it?