RL-TCPnet: UDP send/receive from seperate RTX task

Make sure to heed this warning:

"Functions are not reentrant. This means they must not be interrupted and called again from another task. All TCPnet-related functionality should be collected in a single networking task"

www.keil.com/.../rlarm_tn_using_withkernel.htm

Thank you.
I missed that, and this was exactly the issue.

Regards,

M

M, Can you post any further info/example on how you got the UDP to work with the RTX. I am having troubles. The micro goes freezes into the default interrupt handler as soon as any UDP messages come across.

thanks,
R

In my 'network' task I have additional tick handlers:

 while(1)
    {
        main_TcpNet();
        other_custom_tick();
}

Than in 'other_custom_tick()' I do my non-blocking UDP send receive:

uint16_t udp_callback(uint8_t socket, uint8_t *remip, uint16_t port, uint8_t *buf, uint16_t len)
{
    /* This function is called when UDP data has been received. */

    if(socket == my_socket())
    {
        if(port == my_get_port())
        {
            if(len <= MAX_MPDU)
            {
                //tsk_lock();
                memcpy(rx_buff, buf, len);
                memcpy(rx_ip_address, remip, 4);
                cc_len = datalink_receive(&src, &rx_buff[0], MAX_MCC, 1000);  //!\todo define proper timeout somewhere
                //tsk_unlock();
            }
        }
    }

    return (0);
}


void other_custom_tick(void)
{
    /* process */
    if(cc_len)
    {
       cc_handler(&src, cc_start, cc_len);
        cc_len = 0;
    }
}