Kinetis Microcontrollers中的主题 Can FlexCAN work at No-interrupt mode? The example when CAN receive data there will be a interrupt, the ISR read it, I don't want use this way. I want read the data when I want.

Can FlexCAN work at No-interrupt mode? The example when CAN receive data there will be a interrupt, the ISR read it, I don't want use this way. I want read the data when I want.

jieli — Fri, 20 Jun 2014 03:40:26 GMT

Hi everyone,

My MCU is K64, how to set the register?

And after I disable the interrupt, when I read CAN RX mailbox, there was a error, so FlexCAN only can work at interrups mode?

Thanks a lot.

BRs

Re: Can FlexCAN work at No-interrupt mode? The example when CAN receive data there will be a interrupt, the ISR read it, I don't want use this way. I want read the data when I want.

perlam_i_au — Fri, 20 Jun 2014 17:27:26 GMT

Hi Jie:

Well if you are using interruption configuration you will certainly have to read data when interruption rises, but if you do not want to use this scheme consider polling.

Have a great day,
Perla Moncada

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

Re: Can FlexCAN work at No-interrupt mode? The example when CAN receive data there will be a interrupt, the ISR read it, I don't want use this way. I want read the data when I want.

jieli — Mon, 23 Jun 2014 01:41:59 GMT

hi Moncada,

Yes, I don't want to use interrupt, but after I disable interrupt, there was error when I read data from CAN, So I though there maybe some registers that I should set to polling mode.

Is there such register?

Another question, I want the new data overwrite the old one automatically, is it available?

thank you for your response.

BRs,

Jie

Re: Can FlexCAN work at No-interrupt mode? The example when CAN receive data there will be a interrupt, the ISR read it, I don't want use this way. I want read the data when I want.

Hui_Ma — Wed, 16 Jul 2014 08:27:35 GMT

Hi Jie,

I would recommend to use CodeWarrior with embedded Processor Expert software, which provides CAN_LDD component.

In the typical usage CAN_LDD provides interrupt mode and polling mode application demo.

More detailed info, please check CAN_LDD help file.

Wish it helps.
best regards
Ma Hui