pins.c

   1 #include <stdlib.h>
   2 #include <fcntl.h>
   3 #include <signal.h>
   4 #include <unistd.h>
   5 #include <string.h>
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8 #include <time.h>
   9
  10 #include <sys/types.h>
  11 #include <sys/gpio.h>
  12 #include <sys/ioctl.h>
  13
  14 #include "pins.h"
  15
  16 #define UP(N)   set_pin(N, 1)
  17 #define DOWN(N) set_pin(N, 0)
  18
  19 #define HI(N)   set(N, 1)
  20 #define LO(N)   set(N, 0)
  21
  22 int main(int argc, char *argv[]) {
  23         pins_init();
  24         config_pins();
  25         pincnt();
  26
  27         sleep(1);
  28
  29         pcfg(1, 6,  -1, INPUT | PULLDOWN, "ser");
  30         pcfg(1, 13,  0, OUTPUT, "clk");
  31         pcfg(1, 15,  0, OUTPUT, "shld");
  32         pcfg(0, 27,  0, OUTPUT, "clr");
  33
  34         for(;;) {
  35             HI("shld");
  36             usleep(1);
  37             LO("shld");
  38             usleep(1);
  39         }
  40 }