18F4550 with MCP23S17

[kasuncharya]

Hi all....,

I want to expand ports of 18F4550 using MCP23S17 , I succeed with 16F877A ,but I wanna do it with 18F4550 . It does not work with 18F.
Pls have a look.

// Port Expander module connections
sbit SPExpanderRST at RC0_bit;
sbit SPExpanderCS at RC1_bit;
sbit SPExpanderRST_Direction at TRISC0_bit;
sbit SPExpanderCS_Direction at TRISC1_bit;
// End Port Expander module connections


int j;
void delay(){
Delay_ms(150);
}

void main() {

CMCON = 0x07; // turn off comparators
ADCON1 = 0xFF; // turn off analog inputs

// If Port Expander Library uses SPI1 module
SPI1_Init(); // Initialize SPI module used with PortExpander
Expander_Init(0); // Initialize Port Expander
Expander_Set_DirectionPortA(0, 0x00); // Set Expander's PORTA to be output


for(j=0;j<512;j++){
Expander_Write_PortA(0, 0x09);
delay();
Expander_Write_PortA(0, 0x0C);
delay();
Expander_Write_PortA(0, 0x06);
delay();
Expander_Write_PortA(0, 0x03);
delay();
}

}