#include <stdio.h>
#include <errno.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <inttypes.h>
#include <libopencm3/stm32/rcc.h>
#include <libopencm3/stm32/gpio.h>
#include <libopencm3/stm32/usart.h>
#include <libopencm3/stm32/dma.h>
#include <libopencm3/stm32/i2c.h>
#include <libopencm3/stm32/spi.h>
#include <libopencm3/stm32/adc.h>
#include <libopencm3/stm32/exti.h>
#include <libopencm3/stm32/ethernet.h>
#include <libopencm3/ethernet/phy.h>
#include <libopencm3/stm32/syscfg.h>
#include <libopencm3/cm3/systick.h>
#include <libopencm3/cm3/nvic.h>
#include <libopencm3/cm3/cortex.h>
#include <libopencm3/cm3/scs.h>

#include <lwip/init.h>
#include <lwip/sys.h>
#include <lwip/udp.h>
#include <lwip/mem.h>
#include <lwip/memp.h>
#include <lwip/timers.h>
#include <lwip/timers.h>
#include <netif/etharp.h>

#include "time_fn.h"

#include "pins.h"

#include "ring.h"

#include "prototypes.h"

#define HZ 168000000

#define TRACE do { stdio_drain(); printf("%s:%d\r\n",__FUNCTION__,__LINE__); } while (0)