29 lines
705 B
C
29 lines
705 B
C
#ifndef _BSP_UART_H
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#define _BSP_UART_H
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#include <stdint.h>
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#include "gen/Apb3Uart.h"
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#define uart_t apb3uart_t
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static inline uint32_t uart_get_tx_free(volatile uart_t *reg){
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return (reg->STATUS_REG >> 16) & 0xFF;
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}
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static inline uint32_t uart_get_rx_avail(volatile uart_t *reg){
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return reg->STATUS_REG >> 24;
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}
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static inline void uart_write(volatile uart_t *reg, uint8_t data){
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while(get_uart_rx_tx_reg_tx_free(reg) == 0);
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set_uart_rx_tx_reg_data(reg, data);
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}
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static inline inline uint8_t uart_read(volatile uart_t *reg){
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uint32_t res = get_uart_rx_tx_reg_data(reg);
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while((res&0x10000) == 0) res = get_uart_rx_tx_reg_data(reg);
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return res;
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}
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#endif /* _BSP_UART_H */
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