// Test program for max7219.h max7219.c
// Francesco Fontana 03/05/2020

#include <stdio.h>
#include "max7219.h"
void delay() {for (int c = 0; c<16000; c++);}
void main() {
	clearMax7219();
	printf("Test n.2");
	for (int a =0; a<10; a++) delay();
	delay();
	//printf("xyz{|}~ ");
	/*
	for (int a =0; a<10; a++) delay();

	for (int a = 0x20; a < 0x78; a++){
		for (int a =0; a<10; a++) delay();
		for (int b = a; b < a+7; b++) {
			printf("%c",b);

		}
	} */
	clearMax7219();
	for (int a =-1000 ; a<3000;a++) {printf("_%6d\r",a);}

	while(1)
		{
		// PWM modulation
		for (int b = 0; b <16; b++)
			{
				setBrightnessMax7219(b);
				delay();

			}
		for (int b = 15; b > 0; b--)
			{
				setBrightnessMax7219(b);
				delay();
			}
		}



	//while(1);
	}