18 lines
493 B
C
18 lines
493 B
C
#pragma once
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#define UART_STATUS_RXNE_pos 1
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#define UART_STATUS_RXNE_msk (1 << UART_STATUS_RXNE_pos)
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#define UART_STATUS_TXE_pos 0
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#define UART_STATUS_TXE_msk (1 << UART_STATUS_TXE_pos)
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struct uart {
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volatile uint8_t data;
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volatile uint16_t flags;
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};
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int uart_rx_available(struct uart* uart);
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int uart_tx_available(struct uart* uart);
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void uart_write(struct uart* uart, const char c);
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char uart_read(struct uart* uart);
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void uart_writen(struct uart* uart, const char* data, int len);
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