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SPI revised

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This commit is contained in:
Tristan Krause 2019-04-03 13:30:57 +02:00
parent 5671bd9a78
commit 2298c2a783
8 changed files with 541 additions and 509 deletions
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22
firmware/spi.cpp
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@ -1,10 +1,6 @@
#include "spi.h"
SPI::SPI(void)
{
}
void SPI::init(void) const volatile
void SPI::init() const volatile
{
// Konfiguriere SPI DDRs
DDRB |= _BV(SLSL) | _BV(MOSI) | _BV(SCLK);
@ -42,7 +38,13 @@ void SPI::handleTransfer() volatile
SPDR = next;
}
void SPI::transfer(uint8_t adr) volatile
void SPI::addByte(uint8_t b) volatile
{
wait();
buffer[index++] = b;
}
void SPI::transfer(SPIADR adr) volatile
{
if(!index)
return;
@ -58,18 +60,12 @@ void SPI::transfer(uint8_t adr) volatile
handleTransfer();
}
void SPI::addByte(uint8_t b) volatile
{
wait();
buffer[index++] = b;
}
void SPI::wait() volatile
{
while(active);
}
void SPI::setAdr(uint8_t adr) const volatile
void SPI::setAdr(SPIADR adr) const volatile
{
PORTD &= ~(_BV(DMUX1) | _BV(DMUX2) | _BV(DMUX3));
PORTD |= (adr & 0x01) ? _BV(DMUX1) : 0;