ROM2/main_basic.c

   1 /*
   2  * main_basic.c - a simplified main procedure that relies upon a ersver to do
   3  * anything smart. Just be a dumb interface to a display, keypad, coin mech
   4  * and snacks.
   5  */
   6
   7 #include "display_basic.h"
   8 #include "keypad.h"
   9 #include "chime.h"
  10 #include "coinmech.h"
  11 #include "comm.h"
  12 #include "vend.h"
  13
  14 int main() {
  15         u16 last_coin_value = coin_value;
  16
  17         /* init coin mech */
  18         comm_init();
  19         display_init();
  20         while(1) {
  21                 if (rx_queue_state) {
  22                         switch (msg_buf[0]) {
  23                                 case 'V': /* dispense something */
  24                                         break;
  25                                 case 'D': /* write string to display */
  26                                         break;
  27                                 case 'B': /* beep */
  28                                         break;
  29                                 case 'U': /* query current coin balance */
  30                                         break;
  31                                 case 'G': /* give change */
  32                                         break;
  33                                 default:
  34                                 /* shrug */
  35                                         break;
  36                         }
  37                         msg_clr();
  38                 }
  39                 keypad_read();
  40                 if (keypad_pressed()) {
  41                         /* send packet about it */
  42                         /* beep? */
  43                 }
  44
  45                 if (coin_value != last_coin_value) {
  46                         /* send a packet about it */
  47                 }
  48         }
  49 }
  50
  51 void rti() {
  52         chime(); /* turn chime on or off as need be */
  53 }