[ECOS] Timer tick dosen't work, when printf string > 24

廖友鍾 yozhong@gmail.com
Tue Apr 11 08:10:00 GMT 2006


Hi,
I used Sumsung s3c2410 development board(SMDK2410) to run simple-alarm
example program.
I add LED flash function in hal_clock_reset() and add one line printf
function in cyg_user_start() in simple-alarm.c file.


void cyg_user_start(void)
{
  printf("12345678901234567890123\n");//Add one line prinf function here

  cyg_thread_create(4, alarm_prog, (cyg_addrword_t) 0,
      "alarm_thread", (void *) stack[0],
      STACKSIZE, &thread[0], &thread_obj[0]);
  cyg_thread_resume(thread[0]);
}

If string lenth in prinf function is small than 24, the timer tick is
working correctly and LED flashing.

If I modify printf("123456789012345678901234\n"), now the string lenth
become 25 then time tick dosen't work and LED dosen's flashing.

This is very strange problem.

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