Flowcode and Internal CAN

[Benj]

Hello,

Ok thanks for the reminder. I have managed to make this change to the component. Are any of you able to test the code for me before I put it into the Flowcode PIC release.

To start copy the attached file into your "Flowcode v4/Components" directory.

Then use the CAN2 component and the custom code feature go into the defines section of code for the CAN2 component and change this line.

Code: Select all

#define INTERNAL_CAN_ENABLE	0

And change it to this to activate the internal functionality.

Code: Select all

#define INTERNAL_CAN_ENABLE	1

Let me know how you get on.

[MW]

Hi,

I have had a play with this today, but have not had much joy.

I downloaded the new CAN2 component and installed it as per instructions. I then went into custom code where I found the line in question but found it already to be edited as per your post. I then wrote a very simple flow chart where the CAN initialises then sends an ext identifier string once a second and toggles a led. I loaded the file into a target board I made up a while ago with an 18f2580 and a CAN voltage shifter (circuit as per a microchip datasheet).

The program compiled and loaded fine, the LED toggles but the CAN string does not appear to be transmitting.

This could be a hardware issue but I don't have anything else to test with.

Thanks
MW

[Benj]

Hello,

I have internal CAN hardware setup at home so I will have a go with the code this weekend and see if I can get it to run correctly.

[MW]

Hi,

Did you have any luck with this?

Cheers
MW

[misoct]

Hello,

I have internal CAN hardware setup at home so I will have a go with the code this weekend and see if I can get it to run correctly.

Hi Ben

Based on posts in the forum members on the same subjecthttp://www.matrixmultimedia.com/mmforum ... 29&t=10445, which I put here is still no solutions to the problem of the same and I would like to know whether there is a problem in the program could not be resolved
Thanks

[Jay Dee]

Hi Guys,
Just started to play with Internal CAN (PIC18F25K80), I wish to run a CAN baud rate of 1 Mbit. I need to also select a suitable Oscillator freq for the chip to allow for this.
The start of this thread mentions a calculator in the components properties but I can find it anywhere... any pointers?
Regards, J.

P.S.
I've just selected a 20MHz Crystal for the Pic Osc and set the CAN config BRGCON1 to Ox0
This gives me a 1Mbit Baud Rate.

I also changed the PPP config settings.
Oscillator: HS
But left the 'PLLx4 enable Bit : Enable'

Will the PLL setting try to give me a 40MHz FOsc ?