diff options
| author | Sadeep Madurange <sadeep@asciimx.com> | 2025-01-19 18:45:05 +0800 |
|---|---|---|
| committer | Sadeep Madurange <sadeep@asciimx.com> | 2025-01-19 18:45:49 +0800 |
| commit | a7644c020c4c2b72fc0f13aeea4be47ba08f1961 (patch) | |
| tree | 4eb34f3b93d81c445af49c1cf81e2ec82a50b3c4 /aliznayem/serial.c | |
| parent | 4c0557793d80cbcc6575b83db9cb3a44feeca229 (diff) | |
| download | smart-home-a7644c020c4c2b72fc0f13aeea4be47ba08f1961.tar.gz | |
Try with aliznayem C port (no luck).
Diffstat (limited to 'aliznayem/serial.c')
| -rw-r--r-- | aliznayem/serial.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/aliznayem/serial.c b/aliznayem/serial.c new file mode 100644 index 0000000..782e848 --- /dev/null +++ b/aliznayem/serial.c @@ -0,0 +1,33 @@ +#include <avr/io.h> +#include <util/setbaud.h> + +#include "serial.h" + +void serial_init(void) +{ + UBRR0H = UBRRH_VALUE; + UBRR0L = UBRRL_VALUE; +#if USE_2X + UCSR0A |= (1 << U2X0); +#else + UCSR0A &= ~(1 << U2X0); +#endif + UCSR0B = (1 << TXEN0) | (1 << RXEN0); + UCSR0C = (1 << UCSZ01) | (1 << UCSZ00); +} + +void serial_write(char data) +{ + while (!(UCSR0A & (1 << UDRE0))) + ; + UDR0 = data; +} + +void serial_write_line(const char *s) +{ + for (; *s; s++) + serial_write(*s); + + serial_write('\r'); + serial_write('\n'); +} |
