-// tm1637_init();
-// tm1637_start();
-
- //uint32_t test = hextoreg("12345678");
-
-// cputs(regtohex(test));
-
- //extern void stub();
- //stub();
- //__asm__ __volatile__ ("ldc p1, cr1, r0");
-
-/* while(1) {
- int r;
- for (int i = 0; i < 50000; i++) {
- r = 0;
- }
- led_on();
- for (int i = 0; i < 50000; i++) {
- r = 0;
- }
- led_off();
- } */