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/*
* Copyright 2020 Birte Kristina Friesel
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "driver/stdin.h"
#include <msp430.h>
void StandardInput::setup()
{
UCA0CTLW0 |= UCSWRST;
P2SEL0 &= ~BIT1;
P2SEL1 |= BIT1;
UCA0CTLW0 &= ~UCSWRST;
UCA0IE |= UCRXIE;
}
bool StandardInput::hasKey()
{
if (write_pos != read_pos) {
return true;
}
return false;
}
char StandardInput::getKey()
{
char ret = buffer[read_pos++];
read_pos %= bufsize;
return ret;
}
StandardInput kin;
__attribute__((interrupt(USCI_A0_VECTOR))) __attribute__((wakeup)) void handle_stdin()
{
if (UCA0IFG & UCRXIFG) {
kin.addKey(UCA0RXBUF);
}
}
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