wifigateway/Src/sw_fifo_2.h

#ifndef __SW_FIFO_2__
#define __SW_FIFO_2__


#include <stdint.h>

#define FIFO_2_BUFFER_SIZE 512 // software buffer size (in bytes)



// UART data receive function
//  - checks if data exists in the receive sw buffer
//  - if data exists, it returns the oldest element contained in the buffer 
//  - automatically handles "uart_rx_buffer_full_flag"
//  - if no data exists, it clears the uart_rx_flag
uint8_t uart_2_get_byte(void);

volatile extern uint8_t uart2_rx_fifo_not_empty_flag; // this flag is automatically set and cleared by the software buffer
volatile extern uint8_t uart2_rx_fifo_full_flag;      // this flag is automatically set and cleared by the software buffer
volatile extern uint8_t uart2_rx_fifo_ovf_flag;       // this flag is not automatically cleared by the software buffer
volatile extern uint8_t uart2_tx_fifo_full_flag;      // this flag is automatically set and cleared by the software buffer
volatile extern uint8_t uart2_tx_fifo_ovf_flag;       // this flag is not automatically cleared by the software buffer
volatile extern uint8_t uart2_tx_fifo_not_empty_flag; // this flag is automatically set and cleared by the software buffer

void uart2Interrupt(void);

int uart2serialAvailable();

void send_usart2(unsigned char c);

#endif