mcp2515 is not reponding

[Jinzpaul4u]

Hi there,
Good wishes !!
My team is working on the MCP2515 to establish a CAN network for the upcoming project . We use pic24fj128 to communicate with mcp.Problem is the mcp2515 ain't responding to the processor or that isn't initialized whatsoever !! . We are terribly stuck over here and do not have a path ahead.Our spi works pretty fine (running at 1mhz) so that we only gotta dig MCP infact .
We use a 20mhz crystal and the hardware sounds clean. We checked and verified it is working well.Here is my initialization routine ..


void mode___confi__(void)
{
Start_out_transceive = 0 ; // CS low
writeSPI1(DEV_res); // mcp reset
Start_out_transceive = 1 ; // CS high

__delay_ms(5);

SPI_mcp_trans___t(reg__InstW_,CAN_CTRL,0x80); // start out configuration mode
__delay_ms(5); // delay

SPI_mcp_trans___t(reg__InstW_,RXFnSIDH,0x00); // standard id zero
SPI_mcp_trans___t(reg__InstW_,RXFnSIDL,0x08); // filter applies to extended ids
SPI_mcp_trans___t(reg__InstW_,RXFnEID8,0xff); // filter value
SPI_mcp_trans___t(reg__InstW_,RXFnEID0,0xff); // filter value

SPI_mcp_trans___t(reg__InstW_,RXM0SIDH,0x00); // no mask
SPI_mcp_trans___t(reg__InstW_,RXM0SIDL,0x00); // no mask
SPI_mcp_trans___t(reg__InstW_,RXMnEID8,0x00); // no mask
SPI_mcp_trans___t(reg__InstW_,RXMnEID0,0x00); // no mask

// SPI_mcp_trans___t(reg__InstW_,_CNF1___,0x03); //// tried both commented and uncommented Bit timings..
SPI_mcp_trans___t(reg__InstW_,_CNF1___,0x01);
// SPI_mcp_trans___t(reg__InstW_,_CNF2___,0x89);
SPI_mcp_trans___t(reg__InstW_,_CNF2___,0X98);
// SPI_mcp_trans___t(reg__InstW_,_CNF3___,0x04);
SPI_mcp_trans___t(reg__InstW_,_CNF3___,0X03);
SPI_mcp_trans___t(reg__InstW_,CANINTE ,0x00); // no interrupt

SPI_mcp_trans___t(reg__InstW_,CAN_CTRL,0x00); // switch back to normal mode
__delay_ms(5); // delay
}


Please help if you can figure something from this ..

thanks..