MQX Software SolutionsのトピックRe: how to create another task without help of current running task

how to create another task without help of current running task

sudhakarp — Wed, 01 Apr 2015 04:03:00 GMT

i want to listen 2port simultaneously. can you give any solution for this..?

i tried example rtcs project code but i cant listen two port at the same time.after one client connected only it was processing another one. how to listen 2port or how to initialize 2port at a same time

example code:

err = select(2,&rfds,NULL,0);

test_tid = _task_create(0, TEST_TASK_INDEX, (uint32_t) &task_p);

if (tx_tid == MQX_NULL_TASK_ID)

{

fprintf(stderr, "Fatal Error 0x%X: Unable to create transmit task.", _task_get_error());

_task_block();

}

actually "select(2,&rfds,NULL,0);" in this function was waiting upto incoming connection.

after that only its creating TEST_TASK_INDEX, so how to avoid that problem. how to create another task without help of current running task. i am new for RTOS now only i am learning, i am waiting for your reply..

Re: how to create another task without help of current running task

soledad — Wed, 01 Apr 2015 20:48:54 GMT

Hello,

In the task template list contains the information of the attributes of tasks that MQX creates, and it could be any combination of:

NULL: When MQX starts, it does not create an instance of the task. MQX uses FIFO scheduling for the task.
MQX_AUTO_START_TASK: When MQX starts, it creates one instance of the task.
MQX_DSP_TASK: MQX saves the DSP coprocessor registers as part of the task’s context.
MQX_FLOATING_POINT_TASK: MQX saves floating-point registers as part of the task’s context.

So if all the tasks have as attribute MQX_AUTO_START_TASK then the tasks will run without help of another task. MQX uses FIFO scheduling for the task.

Have a great day,
Sol

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