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make it volatile

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This commit is contained in:
Tristan Krause 2019-04-03 08:40:14 +02:00
parent 4d2ea6013c
commit de7143887d
25 changed files with 368 additions and 377 deletions
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6
firmware/spi.cpp
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@ -4,7 +4,7 @@ SPI::SPI(void)
{
}
void SPI::init(void) const
void SPI::init(void) const volatile
{
// Konfiguriere SPI DDRs
@ -23,7 +23,7 @@ void SPI::init(void) const
setAdr(SPIADR::NONE);
}
void SPI::setAdr(uint8_t adr) const
void SPI::setAdr(uint8_t adr) const volatile
{
PORTD &= ~(_BV(DMUX1) | _BV(DMUX2) | _BV(DMUX3));
PORTD |= (adr & 0x01) ? _BV(DMUX1) : 0;
@ -31,7 +31,7 @@ void SPI::setAdr(uint8_t adr) const
PORTD |= (adr & 0x04) ? _BV(DMUX3) : 0;
}
uint8_t SPI::pushByte(uint8_t b) const
uint8_t SPI::pushByte(uint8_t b) const volatile
{
SPDR = b;
while(!(SPSR & _BV(SPIF)));