MCUXpresso enable code define in debug mode

[kensu]

Hi,

Can MCUXpresso enable source code define when MCUXpresso is in debug mode "automatically" with some setting?

Example:

#define _IS_IN_DEBUG_MODE_  //<--  if MCUXpresso is in debug mode, this define is on or defined.

void function()

{

   #if defined(_IS_IN_DEBUG_MODE_  )

    //compiler when    _IS_IN_DEBUG_MODE_ is defined

  #endif

}

[converse]

By default, the symbol "DEBUG" is defined when building the Debug variant of your code and NDEBUG is defined for the Release build. So you can use

#if defined(DEBUG)

....

#endif

[kensu]

Hi

Thanks for reply.

But I am looking for a method for build different code "in debugger mode which LPC-Link2 is connected".

Is it possible?

Not the DEBUG & RELEASE mode.

Thank you

Ken

[converse]

But you said that you were looking for a compiler #define which by definition must be a build mode. Please state what it is you are really looking for and why.

[kensu]

Hi,

I paste a picture when I ask this question, I want to make MCUXpresso to enable code define.

Now, I am using LPC-Link2 to download AXF file and the application is run without debugger(I called it normal mode), and I also use LPC-Link2 to debug(check memory, step by step...) in debugger mode.

My pirntf function is implement by USB Virtual Comport. It work fine when I download AXF file in normal mode.

But Virtual comport usually disconnect when I enable debugger mode.

So I let the log message output from Semihosting.

I read some article, it can check the cortex-M3 status bit to check it the debugger bit is enabled. 

I use this method, it works. So my printf function will check this bit to determine if it need output from semihosting.

But one problem happened.  In normal mode, I use LPC-Link2 only for download, not need to enter debugger mode, after download complete, my application will detect the debugger bit is on, It try to output log message from semihosting(but it is not in debugger mode), then it halt. I think the reason is I use LPC-Link2 to download AXF, in this procedure, it will also enable debugger bit.

So solution is I re-connected LPC-Link2 again, then the debugger bit will be 0, my printf will output from VCOM. But it is not good, because the first time download, it always halt.

So, my purpose is I want to change my printf function to semihosting while I am using LPC-Link2 debug mode. I hope the MCUXpresso will enable define so that my priint function will be compiler to semihosting mode.

Thanks

Ken

[kerryzhou]

Hi Ken Su,

  I don't know which LPC chip you are using as the target board.

  If you are using the LPC54XX series, you can use the KSDK2.2, when import the KSDK2.2 sample code, there has a item to select the semihost function:

Have a great day,
Kerry

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