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RTCS Watchdog Interference

Question asked by Christian Fischer on Mar 19, 2018
Latest reply on Apr 16, 2018 by Daniel Chen

We encountered a problem on a K60F120M using MQX 4.2.0.2 that seems mainly related to the RTCS module.

Namely when the RTCS module is activated and with a watchdog set to 1 second the system restarts/resets about once a day.

 

Used modules:

bsp, psp, rtcs and shell.

 

Configuration for RTCS:

    _RTCSTASK_priority = 7;
    _RTCSTASK_stacksize = 10000;
    _RTCSPCB_init = 4;
    _RTCSPCB_grow = 2;
    _RTCSPCB_max = 10;
    _RTCS_msgpool_init = 4;
    _RTCS_msgpool_grow = 2;
    _RTCS_msgpool_max  = 10;
    _RTCS_socket_part_init = 4;
    _RTCS_socket_part_grow = 2;
    _RTCS_socket_part_max  = 10;

 

The main task which handles the watchdog has a priortity of 15, furthermore this problem persisted after we temporarly removed all code expect initialization of RTCS and watchdog handling.

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