Automatic can address allocation method
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United States of America Patent
Stats
-
Apr 10, 2001
Grant Date -
N/A
app pub date -
Mar 26, 1998
filing date -
Mar 29, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
For automatic CAN address allocation each bus subscriber still to be allocated an address, generates a random value for a provisional address on system power up. On receiving a request to commence address allocation each bus subscriber writes a telegram claiming the provisional address into the CAN send buffer. If a bus subscriber receives a telegram claiming an address which agrees with its own provisional address, a new random value is generated for a provisional address and a telegram claiming this provisional address is written into the CAN send buffer. If the telegram claiming the provisional address is sent before a telegram claiming the same provisional address is received, the provisional address is deposited in the writeable non-volatile memory as the final address.
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