andras/ad-astra
andras/ad-astra
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This commit is contained in:
schmelczerandras 2020-04-19 12:48:06 +02:00
commit 26a0fd884f
173 changed files with 157458 additions and 1 deletions
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30
ad_astra/AdAstra/src/hardware_access/spi/spi.c Normal file
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#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;
}