11/4/2013

I. Software Setup

A. Kernel

Assuming a phyCORE-Vybrid PD13.1.0 Linux BSP base:


* Apply the CAN patches, 0002-mvf-fixed-flexcan-driver-and-added-support-for-flexc.patch and 0003-pcm052-added-flexcan-support-for-the-phyCORE-Vybrid.patch.

	cd build_armv7l-timesys-linux-gnueabi/linux-3.0/
	patch -p1 < 0002-mvf-fixed-flexcan-driver-and-added-support-for-flexc.patch
	patch -p1 < 0003-pcm052-added-flexcan-support-for-the-phyCORE-Vybrid.patch


* Rebuild the kernel:

	make kernel-restage; make kernel-build; make kernel-install-image



B. Root filesystem

The root filesystem must include iproute2 and can-utils

* From the factory directory: 

make menuconfig
  ¦     -> Target Software                                                                 ¦  
  ¦       -> Software Packages                                                             ¦  
  ¦         -> Networking                                                                  ¦  
  ¦           -> Miscellaneous                                                             ¦  
  ¦             [*] iproute2 --->

  ¦     -> Target Software                                                                 ¦  
  ¦       -> Software Packages                                                             ¦  
  ¦         -> Networking                                                                  ¦  
  ¦           CAN Bus  --->                                                                ¦  
  ¦             [*] canutils  --->
 
* Build these packages

make


II. Test the CAN interface using PCAN-View Software and PCAN-USB in the following way:

We recommend using PCAN-USB and PCAN-View to test the CAN interface:
* Be sure to download the device driver for PCAN-USB: http://www.peak-system.com/PCAN-USB.199.0.html?&L=1
* Open PCAN-View, install from here: http://www.peak-system.com/PCAN-View.242.0.html?&L=1 (set to 1Mbit/s)

Setup the CAN interface on the Vybrid, from the Linux target console run:

	ip link set can0 down
	
	ip link set can0 type can bitrate 1000000 triple-sampling on
	
	ip link set can0 up
	
	

A. Transmit a message
		
	From the target console: 
			
		cansend can0 222 173 190 239 202 254 186 190
		
	On PCAN 'Recieve':
			
		Should view the following: 
				
		Message		DLC		Data
				
		01h			8		DE AD BE EF CA FE BA BE

	

B. Receive a message
		
	From the target console: 
			
		candump
			
		[CTRL+C to quit can dump]
		
	On PCAN 'Transmit':
			
		1. Right Click -> New Message
			
		2. Create a message 
			
		3. Click OK
			
		4. Double Click the message in the 'Transmit' window
			
		5. When running candump - should see the message in target console


CAN not working? 

	See this message: "ip: either "dev" is duplicate, or "type" is garbage"
	http://www.armadeus.com/wiki/index.php?title=CAN_bus_Linux_driver

	Solution: Run "which ip", if it states "/bin/ip" - make sure you are using the correct filesystem (iproute2) -- should result in "/sbin/ip"