RE: Digest Number 711

Your best bet is to use different transmit and acknowledge messages to
and from the Laser and GPS. Schedule them in main such that it provides
time for each device to ack before transmitting to the other.  

-----Original Message-----
From: [email protected] [mailto:[email protected]] 
Sent: Tuesday, April 05, 2005 2:36 PM
To: [email protected]
Subject: [MPC500] Digest Number 711


There is 1 message in this issue.

Topics in this digest:

      1. MPC555 & CAN
           From: "bezenchuee" <[email protected]>


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Message: 1         
   Date: Tue, 05 Apr 2005 15:53:41 -0000
   From: "bezenchuee" <[email protected]>
Subject: MPC555 & CAN


does any body wrote a CAN protocol for this controller?

i need a help:

i have a protocol which communicate between 3 controllers: MAIN, GPS &
LASER.

the protocol works fine with MAIN & GPS.
the problem is with the Laser. in the protocol there is handshaking
between the MAIN  & GPS/LASER.
for example: the main sends message with ID 50, and the other 2 should
answer him with mesaage ID 51.

in first time this occurs in the LASER, it works fine. the second time
the MAIN sends a message with ID 50, the LASER don't recive it (but
the GPS yes).


what can be the problem & how to solve it?

10x alot





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