topic Re: TLS1.2V in i.MX RT Crossover MCUs

TLS1.2V

shreyasbn — Mon, 22 Mar 2021 02:57:09 GMT

hai community, i am using imxrt1064 evk-development board to my project (sdk packages 2.9.1 latest).I have implemented TLS1.2v to my Mqtt secure connection.during handshaking process other threads are not running (remaining threads are in suspend state),once handshake process will finish others threads are start running,can you suggest any solution for this problem

Re: TLS1.2V

jingpan — Wed, 24 Mar 2021 06:39:08 GMT

Hi shreyasbn,

Please check the priority of the MQTT connection task and your task. If MQTT connection task is higher than other task, FreeRTOS will not schedule to other tasks until MQTT connection task finishing.

Regards,

Jing

Re: TLS1.2V

shreyasbn — Mon, 29 Mar 2021 09:54:48 GMT

hai Jing,

i have given last priority for MQTT Task, Still this problem is exist, i am trying to find exact problem?,i thought because of random number generation it is blocking,But not 100% Sure.

Re: TLS1.2V

jingpan — Tue, 30 Mar 2021 08:02:12 GMT

Hi,

When mqtt connection start, it call mqtt_client_connect(). This function call LWIP_ASSERT_CORE_LOCKED() first. It will check if function called from interrupt context. If it is true, this function will lock all interrupt.

Regards,

Jing