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42 lines
1.1 KiB
42 lines
1.1 KiB
/**
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* UART init & async rx module.
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*
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* Call UART_Init(), UART_SetupAsyncReceiver() and
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* define UART_HandleRxByte() somewhere in application code.
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*
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* Call UART_PollRx() to allow rx in a blocking handler.
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*/
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#ifndef UART_HANDLER_H
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#define UART_HANDLER_H
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#include <esp8266.h>
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/** Configure UART periphs and enable pins - does not set baud rate, parity and stopbits */
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void UART_Init(void);
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/** Configure async Rx on UART0 */
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void UART_SetupAsyncReceiver(void);
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/** User must provide this func for handling received bytes */
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extern void UART_HandleRxByte(char c);
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static inline void uart_rx_intr_disable(uint8 uart_no)
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{
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CLEAR_PERI_REG_MASK(UART_INT_ENA(uart_no), UART_RXFIFO_FULL_INT_ENA | UART_RXFIFO_TOUT_INT_ENA);
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}
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static inline void uart_rx_intr_enable(uint8 uart_no)
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{
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SET_PERI_REG_MASK(UART_INT_ENA(uart_no), UART_RXFIFO_FULL_INT_ENA | UART_RXFIFO_TOUT_INT_ENA);
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}
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/**
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* @brief get number of bytes in UART tx fifo
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* @param UART number
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*/
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static inline u8 UART_GetRxFifoCount(u8 uart_no) {
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return (u8) ((READ_PERI_REG(UART_STATUS((uart_no))) >> UART_RXFIFO_CNT_S) & UART_RXFIFO_CNT);
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}
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#endif
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