void shiftByte(uint8_t shiftData)
// Shift out bits, MSB or LSB first
{
uint8_t i;
for (i=0; i<8; i++)
{
if ( 0 == SHIFT_BIT_ORDER )
{
// LSB first
if ( 0 == ( shiftData & _BV(i) ) )
PIN_LO(B,SROUT);
else
PIN_HI(B,SROUT);
} else {
// MSB first
if ( 0 == ( shiftData & _BV(7-i) ) )
PIN_LO(B,SROUT);
else
PIN_HI(B,SROUT);
}
// Pulse shift register clock low to high
PIN_HI(B,SCK);
PIN_LO(B,SCK);
}
// Pulse RCK to put data on output pins
PIN_HI(B,RCK);
PIN_LO(B,RCK);
// Finish with all outputs low
PIN_LO(B,SROUT);
}
static void Write_Data( uint8_t dat )
{
PIN_HI( LCD_DC );
SELECT();
spi1_send_byte( dat );
UNSELECT();
}
//! init rotary encoder pins as inputs, PUs enabled.
void re_init(void (* re_handler_fn)(uint8_t dir))
{
// config as input
PIN_LO(RE_CTL,RE_PIN0);
PIN_LO(RE_CTL,RE_PIN1);
// set output high to enable internal pullup
PIN_HI(RE_W,RE_PIN0);
PIN_HI(RE_W,RE_PIN1);
// set the mask for pin change mask register
PIN_HI(RE_PCMSK_REG, RE_PIN0);
PIN_HI(RE_PCMSK_REG, RE_PIN1);
// enable pin change interrupt
PIN_HI(PCICR,RE_PCINT);
re_handler=re_handler_fn;
}
