10 months, 4 weeks ago.
CAN BUS don't work
Hi, anyone have reach the functionality of CAN module with 746NG? I have try some example and coding. I'm able to send the data over the bus correctly but i don't receive nothing. The signal fisically reach the processor chip and are into correct format (see with signal and protocol analizer). Help me, please, any information is good.
Question relating to:
10 months, 3 weeks ago.
Have you read the documentation of the board? http://www.st.com/content/ccc/resource/technical/document/user_manual/f0/14/c1/b9/95/6d/40/4d/DM00190424.pdf/files/DM00190424.pdf/jcr:content/translations/en.DM00190424.pdf Check page 37! PB8 and PB9 (CAN1 RD, CAN1 TD) connected as I2C (I2C1 SCLI2C1 SCL, I2C1 SDA), and pulled up to Vcc with 2k7. I think you should remove those resistors.
http://www.st.com/content/ccc/resource/technical/document/datasheet/96/ed/61/9b/e0/6c/45/0b/DM00166116.pdf/files/DM00166116.pdf/jcr:content/translations/en.DM00166116.pdf Check page 71! LCD_B6 line is also on PB8, and LCD_B7 line is on PB9. Maybe you could not use CAN and LCD simultaneously, or maybe you have to cut the trace to the LCD. There is the same problem on STM32F429 Discovery board.
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