Updated flashed code is not getting reflected in the hardware

[Javad_Baig]

Hello,

I am working on FRDMKW38 microcontroller using MCUXpresso IDE , I am facing an issue after flashing the MCU, In IDE Flashing is successful but the code changes are not reflecting in the HW.

1). When I flash and run the example code, in the UART it is printing some messages as mentioned in the code which is fine

2). When I modified the code and run, it is printing the same messages as earlier even when we change the existing messages also it is displaying the old messages only

3) Tried changing the example project to other and flashed the new code. Flashing is successful but the uart msg showing terminal is same as the previous project. 

It is observed that the board is not getting flashed with the latest code, the flashing steps in the IDE is working fine like after uploading the code into device "run"  widget will active and once we ran and see the output latest messages are not getting displayed

Kindly help me out from this as soon as possible

Thanks and Regards,

Javad Baig

[Javad_Baig]

Hello,

Thank you for your reply, 

<i>. I am also using debug button only to flash the code and also I tried putting a breakpoint but it is not hitting both to the line which I have modified and also to the main function 

<ii>. I have tried some 4 to 5 sdk examples, the behavior is the same

<iii>. I assume the execution starts from main function which I have mentioned below, the control is not hitting to this function

<iv> Sdk version is SDK_2_6_11_FRDM-KW38 and MCU xpresso version is v11.3.1_5262

Kindly help me out from this at the earliest, thanks in advance

[Ricardo_Zamora]

Hi,

Is your project building without errors?

Is there any error on the IDE console after you press the Debug button? Or an error windows appears? Is the debug session starting correctly?

Can try using the GUI Flash tool in the MCUXpresso IDE to erase your device? Are you able to achieve this?

Regards,

Ricardo

[Javad_Baig]

Hello,

Yes my project is building without error, and no error found in the console. Executable is generating without any error

I tried to erase using GUI console it throw below error

In console the below error displayed 

Note: - I am debugging using Segger J-Link probes, also I tried for MCUXpresso IDE Link server but it was not working

Thank you

[Ricardo_Zamora]

Hi,

From your console screenshot, your flash is write-protected.

Could you try to restore the Flash Configuration?

Regards,

Ricardo

[Javad_Baig]

Hello,

Sorry for the delayed response, I tried restoring the configuration by clicking on the below run button

after that I tried to Erase the Flash blank I am getting the same error i.e., Flash is write protected 

Kindly helpme out from this error, Thanks

[Javad_Baig]

Hello,

Any update on this?

[Ricardo_Zamora]

Hi,

Hope you are doing well. Could you please describe the procedure you are following? Are you using the GUI Flash Tool?

Are you able to debug correctly a project?

Which SDK examples are you using? What modification did you do?

Regards,

Ricardo

[Javad_Baig]

Hello,

Thank you for your reply,

1) I used the below steps to flash the FRDMKW38,  

2) I am using wireless uart freertos example code from the sdk to flash

3) I have changed the below text just to see changes are replicating(means updated code is flashing or not) but when I observed in serial monitor it is sending the old text only.

Note: the below text will print first once we run the example code after flashing 

4) and also it is observed that when I start debugging, control is not coming to the main function(where I have put the breakpoint)

[Ricardo_Zamora]

Hi,

Thank you for your reply. Could you please try to use the debug button?

And put a breakpoint in the line you modified. Are you able to get to that line?

Could you try with another SDK example?

From your 4th point, I am not sure if you modified something else in the example, could you please clarify? And which is the function you are referring?

Also, to try to replicate your issue, what MCUXpresso IDE and SDK versions do you have?

Regards,

Ricardo