Lpc2000

Hello!
   
  Can any one tell me how to do baud rate setting for CAN in LPC2129 and LPC2148?
   
  Regards,
   
  -sayyid

		
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Hi sayyid,

Some example values for LPC2129 BTR register with a 12MHz clock:

#define   CANBitrate20k_12MHz     0x003E401DL
#define   CANBitrate50k_12MHz     0x002B400EL
#define   CANBitrate125k_12MHz    0x002B4005L
#define   CANBitrate250k_12MHz    0x002B4002L
#define   CANBitrate500k_12MHz    0x00274001L
#define   CANBitrate800k_12MHz    0x00394000L
#define   CANBitrate1000k_12MHz   0x00364000L


This site may help to illustrate the interaction of registers.
The CAN controller in the LPC2129 is based off of the SJA1000.

http://www.esacademy.com/faq/calc/sja1000.htm



Joel

Thank u Joel for the comprehensive and prompt reply. 
  I have got the idea.
   
  Regards,
   
  -sayyid

Joel Winarske <joelw@...> wrote:
  Hi sayyid,

Some example values for LPC2129 BTR register with a 12MHz clock:

#define   CANBitrate20k_12MHz     0x003E401DL
#define   CANBitrate50k_12MHz     0x002B400EL
#define   CANBitrate125k_12MHz    0x002B4005L
#define   CANBitrate250k_12MHz    0x002B4002L
#define   CANBitrate500k_12MHz    0x00274001L
#define   CANBitrate800k_12MHz    0x00394000L
#define   CANBitrate1000k_12MHz   0x00364000L


This site may help to illustrate the interaction of registers.
The CAN controller in the LPC2129 is based off of the SJA1000.

http://www.esacademy.com/faq/calc/sja1000.htm



Joel




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