hi! I am doing the project using CAN(Fujitsu MB90F450). Before transmitting the data on the CAN network it is necessary to check whether the Bus is in the Idle state. Any of you can suggest me on how to check the bus idle. is only one receive function enough for both the remote frame and data frame?, providing the coding also very useful for me.
Thanks in advance Panchatcharam M
Charan ( snipped-for-privacy@gmail.com) wrote at Wednesday 11. January 2006 14:10 in comp.arch.embedded:
Normally there is no need to ensure the bus is in the idle state. The CAN controller on Fujitsu chip will do that for you. Just put the message you want to send into one of the buffers and set the corresponding TRQ flag. BTW: When storing the message into the buffer you *must* do this with 16bit access, something memcpy(...) will not work. This is specialty of this chip.
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