Question
MQTT Client over LWIP using LAN8742A
Posted on May 30, 2018 at 07:19
Hello everyone,
i am using stm32F429ZI nucleo board and i want to implement mqtt over LWIP,
i am able to send connect request and publish dummy data on mqtt server but after the keep alive time socket error occurs,
i have already attached systick timer with client.cyclic_tick.
In debug mode timer is working and same way client.cyclic_tick is also getting incremented.
but after the predefined keep alive time socket error occurs , may be there is an issue regarding time attachment,
i have attached my mqtt timer with systick as below:
void MQTT_Tick_Timer_Handler(void)
{
client.cyclic_tick++;
}
and inside stm32f4xx_it.c
void SysTick_Handler(void)
{ osSystickHandler(); MQTT_Tick_Timer_Handler();} 