diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/serialio.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/lib/serialio.c b/lib/serialio.c index 899ca3e..eec6193 100644 --- a/lib/serialio.c +++ b/lib/serialio.c @@ -24,18 +24,38 @@ #include "serialio.h" + void putchar(char c) { +#if defined(SERIAL_IO_UART1) + while (UART1_GetFlagStatus(UART1_FLAG_TXE) == RESET); + UART1_SendData8(c); +#elif defined(SERIAL_IO_UART2) while (UART2_GetFlagStatus(UART2_FLAG_TXE) == RESET); UART2_SendData8(c); +#else + #error "serial-io library is not usable for this board" +#endif } char getchar(void) { +#if defined(SERIAL_IO_UART1) + return UART1_ReceiveData8(); +#elif defined(SERIAL_IO_UART2) return UART2_ReceiveData8(); +#else + #error "serial-io library is not usable for this board" +#endif } void serialio_init(const uint32_t baudrate) { +#if defined(SERIAL_IO_UART1) + UART1_Init(baudrate, UART1_WORDLENGTH_8D, UART1_STOPBITS_1, UART1_PARITY_NO, UART1_SYNCMODE_CLOCK_DISABLE, UART1_MODE_TXRX_ENABLE); +#elif defined(SERIAL_IO_UART2) UART2_Init(baudrate, UART2_WORDLENGTH_8D, UART2_STOPBITS_1, UART2_PARITY_NO, UART2_SYNCMODE_CLOCK_DISABLE, UART2_MODE_TXRX_ENABLE); +#else + #error "serial-io library is not usable for this board" +#endif } void serialio_task(void) @@ -44,5 +64,11 @@ void serialio_task(void) uint8_t serialio_bytes_received(void) { +#if defined(SERIAL_IO_UART1) + return (UART1_GetFlagStatus(UART1_FLAG_RXNE) == RESET) ? 0 : 1; +#elif defined(SERIAL_IO_UART2) return (UART2_GetFlagStatus(UART2_FLAG_RXNE) == RESET) ? 0 : 1; +#else + #error "serial-io library is not usable for this board" +#endif } |