Drawing shapes on LedMatrix
1)	Ustawienie timera

static void startTimer1(tU16 delayInMs)
{
   //initialize VIC for Timer1 interrupts
   VICIntSelect &= ~0x20;           //Timer1 interrupt is assigned to IRQ (not FIQ)
   VICVectAddr5  = (tU32)ledMatrix; //register ISR address
   VICVectCntl5  = 0x25;            //enable vector interrupt for timer1
   VICIntEnable  = 0x20;            //enable timer1 interrupt

   //initialize and start Timer #0
   T1TCR = 0x00000002;                           //disable and reset Timer1
   T1PC  = 0x00000000;                           //no prescale of clock
   T1MR0 = delayInMs * ((CRYSTAL_FREQUENCY * PLL_FACTOR) / (1000 * VPBDIV_FACTOR)); //calculate no of timer ticks
   T1IR  = 0x000000ff;                           //reset all flags before enable IRQs
   T1MCR = 0x00000003;                           //reset counter and generate IRQ on MR0 match
   T1TCR = 0x00000001;                           //start Timer1
}


#define  SPI_CS   0x00008000  //<= new board, old board = 0x00800000

void ledMatrix(void)
{
   static tU32 columnCounter = 0x01;
   static tU8 index = 0;

  if (columnCounter > 0x80)
  {
    columnCounter = 0x01;
    index = 0;
  }
  send_SPI(~pattern[index++]);
  send_SPI(~columnCounter);
  columnCounter <<= 1;

  T1IR        = 0xff;        //reset all IRQ flags
  VICVectAddr = 0x00;        //dummy write to VIC to signal end of interrupt

  ticks++; /* time measure */
}


void send_SPI(unsigned char indata)
{
   tU32 failsafe;

  IOCLR0 = SPI_CS;  // activete SPI

  SPI_SPDR = indata;
  failsafe = 0;
  while(((SPI_SPSR & 0x80) == 0) && (failsafe < 5000))
    failsafe++;
  IOSET0 = SPI_CS;  // deactivate SPI

  if (failsafe >= 5000)
  {
    SPI_SPCCR = 0x08;
    SPI_SPCR  = 0x60;
  }
}


2)	Drawing specific picture 8x8 char array

//!! global array
tU8 pattern[8] = {0,0,0,0,0,0,0,0};


void drawPicture(char const *data)
{
   tU8 i, j;
   for(i = 0; i < 8; i++)
   {
      pattern[i] = 0;
      for(j = 0; j < 8; j++)
      {
         pattern[i] |= ((1 << j) * (data[(j << 3) | i] == '*'));
      }
   }
}

3)	Drawing example

char random4[] = \
"        " \
"********" \
"********" \
"        " \
"        " \
"********" \
"********" \
"        ";


PINSEL0 |= 0x00001500 ;  //Initiering av SPI
SPI_SPCCR = 0x08;
SPI_SPCR  = 0x60;
IODIR0 |= SPI_CS;

startTimer1(2);


drawPicture(random4);