51 lines
1.0 KiB
C
51 lines
1.0 KiB
C
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#ifndef __UART_H__
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#define __UART_H__
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#include <rthw.h>
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#include <rtthread.h>
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#include "cy_device_headers.h"
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#include "board.h"
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#include "cy_pdl.h"
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#define UART_RX_BUFFER_SIZE 128u
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#define UART_TX_BUFFER_SIZE 128u
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#define UART_ENABLE_IRQ(n) NVIC_EnableIRQ((n))
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#define UART_DISABLE_IRQ(n) NVIC_DisableIRQ((n))
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struct uart_int_rx
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{
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rt_uint8_t rx_buffer[UART_RX_BUFFER_SIZE];
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rt_uint32_t read_index, save_index;
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};
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struct uart_int_tx
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{
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rt_uint8_t tx_buffer[UART_TX_BUFFER_SIZE];
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rt_uint32_t write_index, save_index;
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};
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struct uart_device
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{
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CySCB_Type* scb_device;
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/* uart config */
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cy_stc_scb_uart_config_t const *uart_config;
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/* uart context */
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cy_stc_scb_uart_context_t *uart_context;
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/* uart interrupt */
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const cy_stc_sysint_t *uart_int;
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/* irq number */
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IRQn_Type rx_irq;
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IRQn_Type tx_irq;
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/* rx structure */
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struct uart_int_rx* int_rx;
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/* tx structure */
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struct uart_int_tx* int_tx;
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};
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void rt_hw_uart_init(void);
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#endif
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