Lpc2000

Artturi,

did you use the CAN examples programs that can be found in the files
section?  THose do work. 
http://groups.yahoo.com/group/lpc2000/files/LPC2_CAN_Examples/


Do you really use a 10 MHz crystal and no PLL multiplier as it seems
in the code? If so, that can not work. You would need somethink like
16/32/48 MHz to run CAN at 1 Mbit. 

hth, Bob

--- In lpc2000@yahoogroups.com, artturi <artturi@s...> wrote:
> I still haven't managed to get this working. Could someone give me 
> little advice please?
> 
> //Artturi
> 
> artturi wrote:
> 
> > Hi
> >
> > I'm using LPC2194
> > I have problem getting interrupt in CAN bus. Here is the parts of my
> > code that has some problem don't know what.
> > The Bus should be configured to 1 Mb. If someone could give me a tip
> > whats wrong I would be glad.
> >
> > /////////////////////////
> > // PLL setup values are computed within the LPC include file
> > // It relies upon the following defines
> > #define FOSC                (10000000)        // Master Oscillator
Freq.
> > #define PLL_MUL                (1)                // PLL Multiplier
> >
> > // Pheripheral Bus Speed Divider
> > #define PBSD                1                // MUST BE 1, 2, or 4
> > #define PCLK                (CCLK / PBSD)    // Pheripheal Bus
Clock Freq.
> > ///////////////////////
> >
> > // Interrupt Service Routines
> > void CAN1IRQ (void) __attribute__ ((interrupt));
> >
> > //////////////////////
> > void CAN1IRQ (void){
> >         blink();
> > C1CMR = 0x00000004;         // Release the receive buffer
> > VICVectAddr = 0xFFFFFFFFL;     // Acknowledge interrupt
> > }
> >
> > ////////////////////
> > can1InitRx(){
> > PINSEL1 |= 0x00040000;         // Enable Pin 0.25 as CAN1 RX
> > AFMR = 0x00000002L;            // Switch off the acceptance filters
> > C1MOD = 0x00000001;         // Set CAN controller into reset
> > C1GSR = 0x00000000;            // Clear Status Register
> > C1BTR = 0x430005;         // 1MHz CAN bus rate
> > VICVectAddr0 = (unsigned int)CAN1IRQ; // Set And Enable receive
interrupt
> > VICVectCntl0 = 0x0000003A;             // select a priority slot for a
> > given interrupt p92 3a=26
> > VICIntEnable = 0x04000000L;         // CAN1 Rx enable interrupt
> > C1IER = 0x00000001;         //Enable the Receive interrupt
> > C1MOD = 0x00000000;         //Release CAN controller
> > }
> >
> > //Artturi
> >
> >
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