====== 10. Cvičení: Práce na projektu ======
Obsahem cvičení je samostatná práce na projektu a konzultace (projektu, témat z přednášek...).
Studenti z probíhajícího cvičení mají přednostní přístup k deskám.
===== Ukázka animace na LCD =====
**moving_square.c:**
/*******************************************************************
Project main function template for MicroZed based MZ_APO board
designed by Petr Porazil at PiKRON
include your name there and license for distribution.
Remove next text: This line should not appear in submitted
work and project name should be change to match real application.
If this text is there I want 10 points subtracted from final
evaluation.
*******************************************************************/
#define _POSIX_C_SOURCE 200112L
#include
#include
#include
#include
#include
#include //termios, TCSANOW, ECHO, ICANON
#include "mzapo_parlcd.h"
#include "mzapo_phys.h"
#include "mzapo_regs.h"
unsigned short *fb;
void draw_pixel(int x, int y, unsigned short color) {
if (x>=0 && x<480 && y>=0 && y<320) {
fb[x+480*y] = color;
}
}
int main(int argc, char *argv[]) {
unsigned char *parlcd_mem_base, *mem_base;
int i,j;
int ptr;
unsigned int c;
fb = (unsigned short *)malloc(320*480*2);
printf("Hello world\n");
parlcd_mem_base = map_phys_address(PARLCD_REG_BASE_PHYS, PARLCD_REG_SIZE, 0);
if (parlcd_mem_base == NULL)
exit(1);
mem_base = map_phys_address(SPILED_REG_BASE_PHYS, SPILED_REG_SIZE, 0);
if (mem_base == NULL)
exit(1);
parlcd_hx8357_init(parlcd_mem_base);
parlcd_write_cmd(parlcd_mem_base, 0x2c);
ptr=0;
for (i = 0; i < 320 ; i++) {
for (j = 0; j < 480 ; j++) {
c = 0;
fb[ptr]=c;
parlcd_write_data(parlcd_mem_base, fb[ptr++]);
}
}
struct timespec loop_delay;
loop_delay.tv_sec = 0;
loop_delay.tv_nsec = 150 * 1000 * 1000;
int xx=0, yy=0;
while (1) {
int r = *(volatile uint32_t*)(mem_base + SPILED_REG_KNOBS_8BIT_o);
if ((r&0x7000000)!=0) {
break;
}
xx = ((r&0xff)*480)/256;
yy = (((r>>8)&0xff)*320)/256;
for (ptr = 0; ptr < 320*480 ; ptr++) {
fb[ptr]=0u;
}
for (j=0; j<60; j++) {
for (i=0; i<60; i++) {
draw_pixel(i+xx,j+yy,0x7ff);
}
}
parlcd_write_cmd(parlcd_mem_base, 0x2c);
for (ptr = 0; ptr < 480*320 ; ptr++) {
parlcd_write_data(parlcd_mem_base, fb[ptr]);
}
clock_nanosleep(CLOCK_MONOTONIC, 0, &loop_delay, NULL);
}
parlcd_write_cmd(parlcd_mem_base, 0x2c);
for (ptr = 0; ptr < 480*320 ; ptr++) {
parlcd_write_data(parlcd_mem_base, 0);
}
printf("Goodbye world\n");
return 0;
}