Hi,
I try to connect the pixelbuffer and the charbuffer by using the alpha blender, to display something on my tft.
If I am programming in Nios and give Pixelbuffer some Data, everything is fine, but it seems to be that char-buffer is not working. (I see no Characters on the screen)
Has anybody an idea?
(I used the media pc and got the same result...)
Greets
example code:# include <stdio.h># include <altera_up_sd_card_avalon_interface.h># include "system.h"# include <altera_up_avalon_video_pixel_buffer_dma.h>
//#include "altera_avalon_pio_regs.h"# include "math.h"# include "system.h"# include "altera_avalon_pio_regs.h"# include "altera_up_avalon_video_character_buffer_with_dma.h"# include "altera_up_avalon_video_character_buffer_with_dma_regs.h"
int main (){
alt_up_pixel_buffer_dma_dev *pixel_buffer=NULL;
alt_up_char_buffer_dev *char_buffer=NULL;
int er=0;
int count=0;
int color=240;
double delay=0;
int a=0;
int x=0;
int y=0;
pixel_buffer=alt_up_pixel_buffer_dma_open_dev("/dev/video_pixel_buffer_dma_0");
char_buffer=alt_up_char_buffer_open_dev("/dev/video_character_buffer_with_dma_0") ;
if(char_buffer==NULL) printf("Wrong Device!");
if(char_buffer!=NULL) printf("Right Device!");
a=alt_up_char_buffer_draw(char_buffer,25,x,y);
alt_up_pixel_buffer_dma_draw_box (pixel_buffer, 0, 0, 319, 239, 200,
return 0;
}
