Hello everybody,
***I am using altera de0 and ltm complete waveform display experiments, encountered a problem. I use the university program ip vedio_out. Why clear screen, you can not directly display. Test code:nios c
# include "altera_up_avalon_pixel_buffer.h"
int main(void)
{
alt_up_pixel_buffer_dev * pixel_buf_dev;
// open the Pixel Buffer port
pixel_buf_dev = alt_up_pixel_buffer_open_dev ("/dev/Pixel_Buffer");
if ( pixel_buf_dev == NULL)
alt_printf ("Error: could not open pixel buffer device \n");
else
alt_printf ("Opened pixel buffer device \n");
/* Clear and draw a blue box on the screen */
alt_up_pixel_buffer_clear_screen (pixel_buf_dev,0);
alt_up_pixel_buffer_draw_box (pixel_buf_dev, 0, 0, 319, 239, 0x001F, 0);
}
Hope that we can provide the solution or the views try:
