/**
* \brief Initialize ST7565R controller and LCD display.
* It will also write the graphic controller RAM to all zeroes.
*
* \note This function will clear the contents of the display.
*/
void gfx_mono_st7565r_init(void)
{
uint8_t page;
uint8_t column;
#ifdef CONFIG_ST7565R_FRAMEBUFFER
gfx_mono_set_framebuffer(framebuffer);
#endif
/* Initialize the low-level display controller. */
st7565r_init();
/* Set display to output data from line 0 */
st7565r_set_display_start_line_address(0);
/* Clear the contents of the display.
* If using a framebuffer (SPI interface) it will both clear the
* controller memory and the framebuffer.
*/
for (page = 0; page < GFX_MONO_LCD_PAGES; page++) {
for (column = 0; column < GFX_MONO_LCD_WIDTH; column++) {
gfx_mono_put_byte(page, column, 0x00);
}
}
}
int main(void)
{
//! the page address to write to
uint8_t page_address;
//! the column address, or the X pixel.
uint8_t column_address;
//! store the LCD controller start draw line
uint8_t start_line_address = 0;
board_init();
sysclk_init();
// initialize the interface (SPI), ST7565R LCD controller and LCD
st7565r_init();
// set addresses at beginning of display
st7565r_set_page_address(0);
st7565r_set_column_address(0);
// fill display with lines
for (page_address = 0; page_address <= 4; page_address++) {
st7565r_set_page_address(page_address);
for (column_address = 0; column_address < 128; column_address++) {
st7565r_set_column_address(column_address);
/* fill every other pixel in the display. This will produce
horizontal lines on the display. */
st7565r_write_data(0xAA);
}
}
// scroll the display using hardware support in the LCD controller
while (true) {
st7565r_set_display_start_line_address(start_line_address++);
delay_ms(250);
}
}
