diff options
| author | taitep <taitep@taitep.se> | 2026-01-29 21:27:36 +0100 |
|---|---|---|
| committer | taitep <taitep@taitep.se> | 2026-01-29 21:27:36 +0100 |
| commit | 4f32bbc46a48276bba949364dc44d532c19dae78 (patch) | |
| tree | 8f54108788735efff25a4a9549bedbe7967d3c7b /src/uart.c | |
| parent | 25bec21f20208a9369656a337cf5325e7b3a5a8d (diff) | |
Diffstat (limited to 'src/uart.c')
| -rw-r--r-- | src/uart.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/uart.c b/src/uart.c new file mode 100644 index 0000000..86bc01f --- /dev/null +++ b/src/uart.c @@ -0,0 +1,24 @@ +#include "uart.h" + +void uart_init(void) { + UART_TXCTRL = UART_TXCTRL_TXEN; + UART_RXCTRL = UART_RXCTRL_RXEN; +} + +void uart_putc(char c) { + while (UART_TXDATA & UART_TXDATA_FULL) {} + UART_TXDATA = (uint32_t)c; +} + +void uart_puts(const char* s) { + while (*s) + uart_putc(*s++); +} + +char uart_getc(void) { + uint32_t data; + do { + data = UART_RXDATA; + } while (data & UART_RXDATA_EMPTY); + return (char)data; +} |
