fw/main.c (4e6cf8e) - mips_sys · BlinkenArea

main.c

#include "cyc_cnt.h"
#include "lcd.h"
#include "leds.h"
#include "switches.h"

const int myconst = 0x12345678;

int myvar = 0x11223344;

volatile int data[100];

void switches(void)
{
  lcd_chr(1, 0, switches_get_state(sw_0) ? '0' : ' ');
  lcd_chr(1, 1, switches_get_state(sw_1) ? '1' : ' ');
  lcd_chr(1, 2, switches_get_state(sw_2) ? '2' : ' ');
  lcd_chr(1, 3, switches_get_state(sw_3) ? '3' : ' ');
  lcd_chr(1, 4, switches_get_state(sw_east) ? 'E' : ' ');
  lcd_chr(1, 5, switches_get_state(sw_north) ? 'N' : ' ');
  lcd_chr(1, 6, switches_get_state(sw_south) ? 'S' : ' ');
  lcd_chr(1, 7, switches_get_state(sw_west) ? 'W' : ' ');
  lcd_chr(1, 8, switches_get_state(sw_center) ? 'C' : ' ');
  lcd_chr(1, 9, switches_get_state(sw_rot_a) ? 'a' : ' ');
  lcd_chr(1, 10, switches_get_state(sw_rot_b) ? 'b' : ' ');

unsigned int cnt = switches_get_rot_cnt();
  lcd_chr(1, 12, '0' + (cnt >> 9 & 0x7));
  lcd_chr(1, 13, '0' + (cnt >> 6 & 0x7));
  lcd_chr(1, 14, '0' + (cnt >> 3 & 0x7));
  lcd_chr(1, 15, '0' + (cnt & 0x7));
}

void delay(void)
{
  unsigned int i;
  for (i = 0; i < 10; ++i) {
    switches();
    cyc_cnt_delay_ms(20);
  }
}

int main()
{
  unsigned int i;

for (i = 0; i < sizeof(data) / sizeof(data[0]); ++i)
    data[i] = i;

lcd_init();
  lcd_str(0, "MIPS I system");
  lcd_str(1, "");

while (1) {
    for (i = 0x1; i < 0x80; i <<= 1) {
      leds_set_state(i);
      delay();
    }
    for (i = 0x80; i > 0x1; i >>= 1) {
      leds_set_state(i);
      delay();
    }
  }

return 0;
}

mips_sys

implemented displaying rotary counter (octal)