synth/uart/uart.h

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2021-02-17 21:20:30 +00:00
#define UART_BASE 0xc010
#define UART_DATA ((volatile char*) (UART_BASE + 0x00))
#define UART_STATUS ((volatile char*) (UART_BASE + 0x02))
#define UART_STATUS_RXNE_pos 1
#define UART_STATUS_RXNE_msk (1 << UART_STATUS_RXNE_pos)
#define UART_STATUS_TXE_pos 0
#define UART_STATUS_TXE_msk (1 << UART_STATUS_TXE_pos)
int uart_rx_available();
int uart_tx_available();
void uart_write(const char c);
char uart_read();