I am using ksdk 1.3 and kds 3.2.0.
I am using rx callback to send the incoming data on lpuart to the next MCU.
Weirdly, some times the rxcallback function is called but the rxSize is 0 , which means when the program enters inside the IRQ handler, rxSize becomes negative and weird things start to happen.
After some receptions the messages emitted are weird and they are not real.
As u can see at the end chars are repeated and sometimes not and then transmition stops in here.