30 lines
513 B
C
30 lines
513 B
C
#include "spi.h"
|
|
|
|
#include <avr/interrupt.h>
|
|
|
|
#define SWAP_BIT (BV(USIWM0) | BV(USICLK) | BV(USITC) | BV(USICS1))
|
|
|
|
|
|
void sendByteOnSPI(uint8_t byte) {
|
|
USIDR = byte;
|
|
|
|
USICR = SWAP_BIT;
|
|
USICR = SWAP_BIT;
|
|
USICR = SWAP_BIT;
|
|
USICR = SWAP_BIT;
|
|
|
|
USICR = SWAP_BIT;
|
|
USICR = SWAP_BIT;
|
|
USICR = SWAP_BIT;
|
|
USICR = SWAP_BIT;
|
|
|
|
USICR = SWAP_BIT;
|
|
USICR = SWAP_BIT;
|
|
USICR = SWAP_BIT;
|
|
USICR = SWAP_BIT;
|
|
|
|
USICR = SWAP_BIT;
|
|
USICR = SWAP_BIT;
|
|
USICR = SWAP_BIT;
|
|
USICR = SWAP_BIT;
|
|
}
|