/*
 * demo.c
 *
 *  Created on: Feb 14, 2021
 *      Author: larry kiser
 *  Updated on: Sept 6, 2021
 *      Author: Mitesh Parikh
 */

#include <stdio.h>
#include <string.h>

// Custom Include files
#include "LED.h"
#include "UART.h"
#include "demo.h"
#include "stm32l4xx.h"
#include "systick.h"


// This function is to create a delay by consuming CPU cycle on counter
//static void delay_loop( int value )
//{
//	// spin loop consuming CPU to spend time.
//	for (int i = 0; i < value; i++)
//		;
//}

// This function is to print counter on UART port and toggle LED
static void demo_of_UART_print(int counter){
	int n ;
	uint8_t buffer[BUFFER_SIZE];

	n = sprintf((char *)buffer, "counter = %d\r\n", counter);
	USART_Write(USART2, buffer, n);

	// delay_loop( 8000000 ) ;	// comment this out when you are ready to test delay_systick
	init_systick();
	delay_systick();	// enable this when you are ready to test
	delay_systick();

	// Toggle LED
	LED_Toggle();
}

void run_demo(){
	
	int counter = 0;
	
	// Run a loop to print counter value on UART port
	while (1)
	{
		//demo_of_printf_scanf();
		demo_of_UART_print(counter);
		counter++;
	}
}