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the CAN bus, diagnostics

 

 13.06.2010  start of date 

Send us your question .

(c) 2010 Pavel Pindora 

 

Hardware

 

Hardware for CAN bus

 

 

                       

USB - CAN bus interface

http://www.papouch.com/shop/scripts/_detail.asp?katcislo=0212 

http://www.usb2can.wz.cz/

 

MCP2515 SPI CAN bus controler http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1335&dDocName=en010406
82C250 CAN Transceiver 1Mb http://www.semiconductors.philips.com/acrobat_download/datasheets/PCA82C250_5.pdf

 

 

CAN diag. 

S04 (Id1 = 1025 - 1030) , 

Id1 = 3 test only, a noise

 

CAN diag. 

Masking received message  noise 3, KV04 257, SP04 129

 

Now, the Input of KV04 has been changed

 

 

CAN bus and some description  (11.2.2006)

Délka vedení (Length of wire) Resistance Ohm / 1m Max. Baud rate
< 40m <70mO/m  1Mbits/sec
< 300m <60 mO/m  500kbits/sec
< 600m <40 mO/m 100kbits/sec
< 1000m <26 mO/m 50kbits/sec

 

 

 

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