static void cfag12864b_not(unsigned char x, unsigned char y)
{
if (cfag12864b_isset(x, y))
cfag12864b_unset(x, y);
else
cfag12864b_set(x, y);
}
static void example(unsigned char n)
{
unsigned short i, j;
unsigned char matrix[CFAG12864B_WIDTH * CFAG12864B_HEIGHT];
if (n > EXAMPLES)
return;
printf("Example %i/%i - ", n, EXAMPLES);
switch (n) {
case 1:
printf("Draw points setting bits");
cfag12864b_clear();
for (i = 0; i < CFAG12864B_WIDTH; i += 2)
for (j = 0; j < CFAG12864B_HEIGHT; j += 2)
cfag12864b_set(i, j);
break;
case 2:
printf("Clear the LCD");
cfag12864b_clear();
break;
case 3:
printf("Draw rows formatting a [128*64] matrix");
memset(matrix, 0, CFAG12864B_WIDTH * CFAG12864B_HEIGHT);
for (i = 0; i < CFAG12864B_WIDTH; i++)
for (j = 0; j < CFAG12864B_HEIGHT; j += 2)
matrix[j * CFAG12864B_WIDTH + i] = 1;
cfag12864b_format(matrix);
break;
case 4:
printf("Fill the lcd");
cfag12864b_fill();
break;
case 5:
printf("Draw columns unsetting bits");
for (i = 0; i < CFAG12864B_WIDTH; i += 2)
for (j = 0; j < CFAG12864B_HEIGHT; j++)
cfag12864b_unset(i, j);
break;
case 6:
printf("Do negative not-ing all bits");
for (i = 0; i < CFAG12864B_WIDTH; i++)
for (j = 0; j < CFAG12864B_HEIGHT; j ++)
cfag12864b_not(i, j);
break;
}
puts(" - [Press Enter]");
}
static void cfag12864b_e(unsigned char state)
{
cfag12864b_setbit(state, CFAG12864B_BIT_E);
cfag12864b_set();
}