Koen Vandeputte
a58bcc9e67
ath79: mikrotik: fix beeper phantom noise on RB912 ...
Analysis done by Denis Kalashnikov:
It seems that some ROS versions on some routerboard models have this bug:
after silence boot (no output to uart, no beeps) beeper clicks when wireless traffic is.
https://forum.mikrotik.com/viewtopic.php?f=3&t=92269
https://forum.mikrotik.com/viewtopic.php?t=63399
From these links:
1)
Hello, I have RB951G-2HnD and I noticed strange thing
when I loaded the device with some wireless traffic it
produced strange sound - like hissing, fizzing etc.
2)
Same problem still on 6.33, with silent boot enabled
I hear buzzing noise on wireless load.
3)
The sound is fixed in v5.19, it was a bug that caused beeper to make clicks.
It also got fixed in RouterOS:
* What's new in 5.19 (2012-Jul-16 10:51):
fix ticking sound on RB411UAHL;
* What's new in 6.38.3 (2017-Feb-07 09:52):
rb3011 - fixed noise from buzzer after silent boot;
I've checked with an oscilloscope that:
* When on the ssr beeper pin is 0,
on the beeper itself is 1 (~5V),
and when on the ssr beeper pin is 1,
on the beeper is 0
The beeper doesn't consume power,
so 1 should be a default/idle value for the ssr beeper pin).
* When there is wireless traffic (ping packets)
in the background and the beeper clicks, I see
pulses on the beeper itself,
but no pulses on the ssr beeper pin (Q5 pin of 74hc595).
When I manually toggle the ssr beeper pin I see pulses on both.
So, it is likely that the phantom beeper clicks are caused by the EMI.
Suggested-by: Denis Kalashnikov <denis281089@gmail.com>
Reviewed-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2021-07-01 11:58:36 +02:00
2021-04-08 09:20:59 +02:00
2021-04-08 09:20:59 +02:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-04-08 09:20:59 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2021-05-01 13:17:57 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2021-01-22 21:03:11 +01:00
2021-01-22 21:03:11 +01:00
2021-01-22 21:03:11 +01:00
2021-01-22 21:03:11 +01:00
2021-02-24 02:53:53 +01:00
2021-01-22 21:03:11 +01:00
2021-01-22 21:03:11 +01:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-04-08 09:20:59 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-10-02 13:51:39 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-08-17 15:19:03 +02:00
2021-02-24 02:53:53 +01:00
2021-01-22 21:03:11 +01:00
2021-01-22 21:03:11 +01:00
2021-02-24 02:53:53 +01:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-10-02 13:51:39 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2021-02-01 00:47:46 +01:00
2021-02-01 00:47:46 +01:00
2021-02-24 02:53:53 +01:00
2020-08-17 15:19:03 +02:00
2021-02-24 02:53:53 +01:00
2020-10-02 13:51:39 +02:00
2021-05-01 13:17:57 +02:00
2021-05-01 13:17:57 +02:00
2020-10-02 13:51:39 +02:00
2021-04-08 09:20:59 +02:00
2021-04-08 09:20:59 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2019-06-05 10:12:31 +02:00
2021-03-22 09:23:10 +01:00
2021-03-22 09:23:10 +01:00
2021-03-22 09:23:10 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-12-30 23:32:07 +01:00
2020-12-30 23:32:07 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-05-17 01:01:32 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-12-04 15:50:24 +01:00
2020-12-04 15:50:24 +01:00
2021-02-24 02:53:53 +01:00
2021-02-25 15:12:05 +01:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-06-30 21:39:59 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-12-04 15:50:24 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-12-29 00:03:26 +01:00
2020-12-29 00:03:26 +01:00
2020-12-29 00:03:26 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-12-04 15:50:24 +01:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2020-12-04 15:50:24 +01:00
2020-12-04 15:50:24 +01:00
2021-02-24 02:53:53 +01:00
2020-01-31 13:42:12 +01:00
2021-02-24 02:53:53 +01:00
2021-07-01 11:58:36 +02:00
2021-02-24 02:53:53 +01:00
2021-01-15 18:32:38 +01:00
2020-09-25 23:26:34 +02:00
2020-11-03 18:34:10 +01:00
2020-11-03 18:34:10 +01:00
2020-11-18 21:13:46 +01:00
2020-11-18 21:13:46 +01:00
2020-11-03 18:34:10 +01:00
2020-11-03 18:34:10 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-11-03 18:34:10 +01:00
2020-11-03 18:34:10 +01:00
2020-11-03 18:34:10 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-06-06 18:56:45 +02:00
2021-06-06 18:56:45 +02:00
2021-06-06 18:56:45 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-12-25 10:38:13 +01:00
2020-12-25 10:38:13 +01:00
2021-02-24 02:53:53 +01:00
2021-05-01 13:17:57 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-01-19 15:39:36 +01:00
2021-01-19 15:39:36 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-10-15 18:52:39 +02:00
2020-10-15 18:52:39 +02:00
2020-10-17 20:17:59 +02:00
2020-10-17 20:17:59 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-03-17 17:41:24 +00:00
2021-03-17 17:41:24 +00:00
2021-03-17 17:41:24 +00:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2020-12-02 16:28:19 +01:00
2021-06-05 23:39:14 +02:00
2020-10-02 13:51:39 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-10-02 13:51:39 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-06-07 00:25:11 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-20 01:26:14 +01:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-04-08 09:20:59 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-10-02 13:51:39 +02:00
2020-11-18 23:49:34 +01:00
2020-11-18 23:49:34 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-10-02 13:51:39 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-11-12 17:18:26 +01:00
2020-11-12 17:18:26 +01:00
2021-02-24 02:53:53 +01:00
2020-11-12 17:18:26 +01:00
2020-11-12 17:18:26 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-26 13:57:02 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2021-01-04 01:09:32 +01:00
2021-01-04 01:09:32 +01:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-12-28 19:37:24 +01:00
2020-12-28 19:37:24 +01:00
2021-02-24 02:53:53 +01:00
2020-12-22 19:11:50 +01:00
2021-02-24 02:53:53 +01:00
2020-12-22 19:11:50 +01:00
2021-06-05 01:17:11 +02:00
2021-06-05 01:17:11 +02:00
2021-06-05 01:17:11 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-10-02 13:51:39 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2021-06-13 23:30:05 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-01-04 01:09:32 +01:00
2021-04-08 09:20:59 +02:00
2020-12-22 19:11:50 +01:00
2021-04-08 09:20:59 +02:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2020-12-04 15:50:24 +01:00
2021-04-08 09:20:59 +02:00
2020-12-14 16:57:21 +01:00
2020-12-14 16:59:49 +01:00
2021-02-24 02:53:53 +01:00
2020-12-04 15:50:24 +01:00
2020-12-04 15:50:24 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-11-24 14:40:55 +01:00
2020-11-24 14:40:55 +01:00
2020-11-24 14:40:55 +01:00
2020-11-24 14:40:55 +01:00
2020-11-24 14:40:55 +01:00
2020-11-24 14:40:55 +01:00
2021-01-04 01:09:32 +01:00
2021-02-24 02:53:53 +01:00
2021-02-09 13:10:33 +01:00
2021-02-24 02:53:53 +01:00
2020-12-22 19:11:50 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-10-02 13:51:39 +02:00
2021-04-16 13:54:22 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-06-05 01:17:11 +02:00
2021-06-05 01:17:11 +02:00
2021-06-05 01:17:11 +02:00
2021-01-19 21:41:25 +01:00
2021-01-19 21:41:25 +01:00
2021-01-19 21:41:26 +01:00
2021-01-19 21:41:26 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-10-17 20:17:59 +02:00
2020-10-17 20:17:59 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2020-12-04 15:50:24 +01:00
2021-02-24 02:53:53 +01:00
2020-12-04 15:50:24 +01:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-12-04 18:21:08 +01:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2021-06-07 00:23:51 +02:00
2020-12-04 15:50:24 +01:00
2021-02-24 02:53:53 +01:00
2021-06-06 21:21:51 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-12-04 15:50:24 +01:00
2020-12-04 15:50:24 +01:00
2020-12-04 15:50:24 +01:00
2020-12-04 15:50:24 +01:00
2020-12-04 15:50:24 +01:00
2020-12-04 15:50:24 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-05-17 01:01:32 +02:00
2021-02-24 02:53:53 +01:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2021-04-10 20:57:37 +02:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-10-17 20:18:00 +02:00
2020-10-17 20:18:00 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2020-12-04 15:50:24 +01:00
2020-12-04 15:50:24 +01:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2021-02-24 02:53:53 +01:00
2021-04-15 22:40:55 +02:00
2020-11-23 22:53:15 +01:00
2020-11-23 22:53:15 +01:00
2020-11-23 22:53:15 +01:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
2020-10-04 15:44:05 +02:00
2020-10-04 15:44:05 +02:00
2020-10-04 15:44:05 +02:00
2020-10-04 15:44:05 +02:00
2020-12-04 15:50:24 +01:00
2021-02-24 02:53:53 +01:00
2020-12-04 15:50:24 +01:00
2020-09-25 23:26:34 +02:00
2021-04-15 22:40:48 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2019-11-27 22:54:36 +01:00
2021-02-24 02:53:53 +01:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2021-02-24 02:53:53 +01:00
2020-09-25 23:26:34 +02:00
2020-09-25 23:26:34 +02:00
2020-10-02 13:51:39 +02:00
2020-05-18 13:35:38 +02:00
2020-09-25 23:26:34 +02:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2020-10-02 13:51:39 +02:00
2020-09-25 23:26:34 +02:00
2021-02-24 02:53:53 +01:00
a58bcc9e67