MSPM0L1305-Q1: Lin speed with no crystal

For Lin, it should support baud rate detection. However, for our LIN, its hardware doesn't support it. If customer accept to use a timer to do auto baud rate detection, they can absolutely reach 19.2k. Besides, for a normally Lin communication on MSPM0, the most problem lies on the LIN receive. As it depends on the clock accuarcy of Master and slave, we can't ensure you we can reach 19.2k or 11k without any additional work.

Eason, 

Can someone do the testing to see if we can support the higher speeds without a crystal? 

-Jason

I assume we can do the calibration based on the data sheet. Is it OK for you?

Please share the master or slave clock speed and clock accuracy.

If you can declare what test you want us do. I can check whether we can give help.

Eason, 

I think they would use whatever settings are required to achieve the speeds with no crystal! 

-Jason

Hi Jason,

1. Can you tell me what you want me to do?

2. As I said, we can only provide our LIN baud rate accuracy across whole temperature. However, whether there is error rate not only lies on MSPM0. It depends on the master, slave and the line resistance and capacitiance. 

3. If you can clearly understand why I am saying, you should know any test on my side can't eusure the codicition on your customer side.

4. Anyway, I would suggest to give yes or no after you give me these information:

• Working temperature (-45~125?)
• the other device's clock accuracy, which communicate with MSPM0 through LIN.