#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/uart.h"
#include "driver/gpio.h"
#include "sdkconfig.h"
#include "esp_log.h"

/* UART */
/* UART1 RT-2 TX-1*/
/* UART2 RT-46 TX-45*/
#define ECHO_TEST_TXD2 (45)
#define ECHO_TEST_RXD2 (46)
#define ECHO_UART_PORT_NUM2      (UART_NUM_2)

#define ECHO_TEST_TXD1 (1)
#define ECHO_TEST_RXD1 (2)
#define ECHO_UART_PORT_NUM1      (UART_NUM_1)

#define ECHO_TEST_RTS (UART_PIN_NO_CHANGE)
#define ECHO_TEST_CTS (UART_PIN_NO_CHANGE)

#define ECHO_UART_BAUD_RATE     (9600)
#define ECHO_TASK_STACK_SIZE    (16*1024)

/*选择采用小端序还是大端序*/
#define BIG_ENDIAN  0
#define LITTLE_ENDIAN  !BIG_ENDIAN

unsigned short CRC16(unsigned char* pchMsg, unsigned short wDataLen);

/*串口1响应任务*/
void uart1_echoTask(void);

/*串口2响应任务*/
void uart2_echoTask(void);