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WICED Studio Wi-Fi Combo

Employee

I have made an application similar to the demo "temp_control". There are 2 registered timed_events:

1. wiced_rtos_register_timed_event( &post_timed_event, WICED_NETWORKING_WORKER_THREAD, &post_to_server, POST_INTERVAL, 0 );

2. wiced_rtos_register_timed_event( &sensor_timed_event, WICED_HARDWARE_IO_WORKER_THREAD, &take_sensor_reading, SAMPLE_INTERVAL, 0 );

1. Reads values from an i2c device, every 2 seconds.

2. Posts the values (wiced_http_get) to a server, every 50 seconds.

The problem is that the two events don´t work together. The application hangs in the post function.

If I comment out one of the timed events, the other will work as expected.

The functions share a variable which has a mutex.

What may be the problem here?

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3 Replies
Anonymous
Not applicable

anjo

I think that I'm seeing this issue as well. In my case, I saw that when porting from 3.3.1 to 3.5.2.

As a workaround, I used the higher frequency timer callback to invoke the lower frequency timer callback every such and such invocations.

Note that I suspect that it might be related to placing a stack pointer object (message) on the thread queue while the thread is already performing a task. Since I don't have the ThreadX code, I cannot verify that hypothesis.

Tsachi

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Honored Contributor

Can you share the code to reproduce this issue?

I'd like to take a look.

BTW, which OS/Network stack are you using? (ThreadX or FreeRTOS?)

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Honored Contributor

anjo wrote:

I have made an application similar to the demo "temp_control". There are 2 registered timed_events:

1. wiced_rtos_register_timed_event( &post_timed_event, WICED_NETWORKING_WORKER_THREAD, &post_to_server, POST_INTERVAL, 0 );

2. wiced_rtos_register_timed_event( &sensor_timed_event, WICED_HARDWARE_IO_WORKER_THREAD, &take_sensor_reading, SAMPLE_INTERVAL, 0 );

1. Reads values from an i2c device, every 2 seconds.

2. Posts the values (wiced_http_get) to a server, every 50 seconds.

The problem is that the two events don´t work together. The application hangs in the post function.

If I comment out one of the timed events, the other will work as expected.

The functions share a variable which has a mutex.

What may be the problem here?

Hi seyhan​,

You might want to take a look at this issue as well. (timer related).