void spi_init(void)
{
ANSELA = 0;
ANSELC = 0;
RST_T = 0;
RST = 1;
dly_ms(20);
TRISC0 = 0;
TRISC2 = 0;
SSPSTAT = 0xC0;
SSPCON1 = 0x2A;
SSP1ADD = 100;
sck_dur = 1;
spi_set_sck_duration(sck_dur);
RST = 0;
spi_reset_pulse();
}
void spi_init(void)
{
SPICS=1; // pb2 as reset pin is output, this is also the ss pin which
// must be output for master to work.
SPICS_TRIS=0; // reset = high = not active
// now output pins low in case somebody used it as output in his/her circuit
//MOSI, SCK is output/low
SPI1STATbits.SPIEN = 0;//disable, just in case...
#ifdef OUTPUT_HIGH_IMPEDANCE
SPIMOSI_ODC=1;
SPICLK_ODC=1;
SPICS_ODC=1;
#else
SPIMOSI_ODC=0;
SPICLK_ODC=0;
SPICS_ODC=0;
#endif
// Inputs
RPINR20bits.SDI1R=7; //B7 MISO
// Outputs
RPOR4bits.RP9R=SDO1_IO; //B9 MOSI
RPOR4bits.RP8R=SCK1OUT_IO; //B8 CLK
//pps configures pins and this doesn't really matter....
SPICLK_TRIS=0; //B8 sck output
SPIMISO_TRIS=1; //B7 SDI input
SPIMOSI_TRIS=0; //B9 SDO output
SPICLK=0;
SPIMISO=0;
SPIMOSI=0;
delay_ms(20); // discharge MOSI/SCK
//if (spi_in_sw==0){
/* Enable SPI, Master, set clock rate fck/16 */
spi_set_sck_duration(sck_dur);
// now SCK and MOSI are under control of SPI
//}
SPICS=0; // reset = low, stay active
delay_ms(20); // stab delay
spi_reset_pulse();
}
