Re: CAN startup problems
Bryan Armstrong <bryan.armstrong-6tN4nzCoH/[email protected]>
| Newsgroups | gmane.comp.hardware.microcontrollers.tini |
|---|---|
| Message-ID | <[email protected]> |
Karsten Christensen wrote: > The only problem occurs when i let the PC communicate to the system > during powerup or reset. > I look like the DSTINIm400 module pulls down the CAN RX-pin if it > receives to many CAN messages during start of the TINIOS, even this pin > is an input on the DS80C400 CANBus! The CAN RX pin is driven by the CAN transceiver (e.g. 82C250) and is a wired product of the CAN TX pin of the CPU and the CAN Bus. If the line is going low, either the CAN TX is low, or the CAN Bus is low. > When my own aplication then starts after the TINIOS finishes > initializing, it initializes the CANBus and everything seems to be > initialized ok (no exeptions or anything). BUT no telegrams are > received, and the input pin is still pulled down by the DS80C400!! Hmm, what are the signals on the differential side of the CAN transceiver? -- -- Bryan Armstrong bryan.armstrong-6tN4nzCoH/[email protected] _______________________________________________ TINI mailing list TINI-6tN4nzCoH/[email protected] To UNSUBSCRIBE, edit your profile, or see list archives: http://lists.dalsemi.com/mailman/listinfo/tini