spi: mixture of old spi_update and new spi_readwrite interfaces, using spi mode3 for adxl345
#ifndef QMSK_RELAY_H
#define QMSK_RELAY_H
#include "stdlib.h"
/*
* Setup pins 0..N of relay_port for driving relays.
*/
static inline void relay_init (byte count)
{
for (byte i = 0; i < count; i++) {
// output
sbi(&RELAY_DDR, i);
}
}
static inline void relay_open (byte i)
{
cbi(&RELAY_PORT, i);
}
static inline void relay_close (byte i)
{
sbi(&RELAY_PORT, i);
}
static inline void relay_toggle (byte i)
{
sbi(&RELAY_PIN, i);
}
#endif