diff options
Diffstat (limited to 'src/arch/msp430fr5969lp/driver/stdin1.cc')
-rw-r--r-- | src/arch/msp430fr5969lp/driver/stdin1.cc | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/arch/msp430fr5969lp/driver/stdin1.cc b/src/arch/msp430fr5969lp/driver/stdin1.cc new file mode 100644 index 0000000..efb7f90 --- /dev/null +++ b/src/arch/msp430fr5969lp/driver/stdin1.cc @@ -0,0 +1,40 @@ +/* + * Copyright 2020 Birte Kristina Friesel + * + * SPDX-License-Identifier: BSD-2-Clause + */ +#include "driver/stdin1.h" +#include <msp430.h> + +void StandardInput1::setup() +{ + UCA1CTLW0 |= UCSWRST; + P2SEL0 &= ~BIT6; + P2SEL1 |= BIT6; + UCA1CTLW0 &= ~UCSWRST; + UCA1IE |= UCRXIE; +} + +bool StandardInput1::hasKey() +{ + if (write_pos != read_pos) { + return true; + } + return false; +} + +char StandardInput1::getKey() +{ + char ret = buffer[read_pos++]; + read_pos %= bufsize; + return ret; +} + +StandardInput1 kin1; + +__attribute__((interrupt(USCI_A1_VECTOR))) __attribute__((wakeup)) void handle_stdin1() +{ + if (UCA1IFG & UCRXIFG) { + kin1.addKey(UCA1RXBUF); + } +} |