RT1176 can't write values to variables

[PIHL]

Hello,

I am working on a project with custom PCB based on MIMXRT1176DVMAA MCU. I can program MCU and debug the program with MCUXpresso and with Ozone.

I see the instructions being executed, but without any result. Variables are created in the correct RAM address, but even assigning values to them does not work.

Example simplest code:

static volatile uint32_t var = 0;

void main(void)

{

  var = 1; 

}

The var has a random value, that is not changing during execution.

I tried adding the same code (creating variable and assigning value to it) at the beginning of ResetISR() and the result was exactly the same.

At the moment I believe there is some kind of issue with the hardware configuration of our custom PCB. Is there anything except voltages, clock of oscillators and startup procedure that I should test?

Regards,

Piotr

[FelipeGarcia]

Hi Piotr,

Are you using SDK code? If not, please try it this will help us to see if this could be software issue, If any variable does not change the value I would assume that this will also happen when running SDK example.

Also please let me know what is the MCUXpresso version you are using.

Best regards,

Felipe