Pic24hj502, tlc5940, SCLK

Hi, I am making an 8x8 RGB LED matrix and I am using PIC24HJ502 microcontroller & TLC5940 LED driver. I consider myself weak at programming so I need a bit of your help. For starters I want to generate continuous pulse of ~76 KHz from my micro controller to a SCLK (data shift clock) of TLC5940. I know that everything can be done by SPI module in PIC24 but If I'm not able produce even a simple pulse I will not be able to understand that yet. I have set the configurations in the following way:

#include<p24hj128gp502.h>

int dc;

void main(void)

{
AD1PCFGL = 0xFFFF; // All ADC pins are set to digital (IO) fucntion
OSCTUN=0b11111; // Oscillator tunning register ~7.345 Mhz

_PLLPRE = 0 ;// then N1 = 2. This yields a
_PLLDIV = 20; // then M = 32. This yields a
_PLLPOST = 0; // then N2 = 2. This provides

T1CONbits.TCKPS = 0b01; //Timer1 prescale
_TRISB0=0;
dc=25;

_RP0R=0b10010; // This assigns OC1 to RP0

OC1CONbits.OCM=0b101; // Continious PWM mode

OC1RS=256/100*dc; // Dutycycle
OC1R=0;//

PR2=255;
PR1=20000;

T2CONbits.TON=1;
T1CONbits.TON=1;
_T1IE=1;
_T1IF=0;

}



This is mainly fragments I found in the datasheet and reference manual. The frequencies I set here are not correct but I will adjust it when I know what I'm doing.

Any advices?