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linux, go!

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This commit is contained in:
Tristan Krause 2019-04-02 13:34:59 +02:00
parent 25f313fbf2
commit d5ca50f475
16 changed files with 414 additions and 273 deletions
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29
firmware/usart.cpp
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@ -4,7 +4,7 @@ void USART::init()
{
UCSR0A = _BV(U2X0);
UCSR0B = _BV(RXEN0) | _BV(TXEN0) | _BV(RXCIE0);
UCSR0B = _BV(RXEN0) | _BV(TXEN0) | _BV(RXCIE0) | _BV(TXCIE0);
// Einstellen des Datenformats: 8 Datenbits, 1 Stoppbit
UCSR0C = _BV(UCSZ00) |_BV(UCSZ01);// (1<<URSEL0)|(1<<UCSZ10)|(1<<UCSZ00);
@ -29,27 +29,25 @@ void USART::clearInputBuffer()
return;
}
void USART::write(void)
{
send_len = send_pos;
send_pos = 0;
while (!(UCSR0A & (1<<UDRE0)));
UDR0 = send_buffer[send_pos++];
}
void USART::writeByte(uint8_t b)
{
while (!(UCSR0A & (1<<UDRE0)));
UDR0 = b;
//while(!(UCSR0A & _BV(TXC0)));
send_buffer[send_pos++] = b;
}
void USART::writeInt(uint16_t v)
{
while (!(UCSR0A & (1<<UDRE0)));
UDR0 = v & 0xFF;
writeByte(v & 0xFF);
v >>= 8;
while (!(UCSR0A & (1<<UDRE0)));
UDR0 = v & 0xFF;
//while(!(UCSR0A & _BV(TXC0)));
writeByte(v & 0xFF);
}
void USART::writeStr(const char* str, uint8_t len)
@ -83,8 +81,7 @@ uint8_t USART::writeBlock(uint8_t* ptr, uint8_t len)
uint8_t USART::readByte()
{
while (!(UCSR0A & (1<<RXC0)));
return UDR0;
return receive_buffer[receive_pos++];
}
uint16_t USART::readInt()