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SegmentFault
SegmentFault
Associate II
September 9, 2020
Question

When an STM32 microcontroller is debuged, the probram being debugged is stored in the Flash?

  • September 9, 2020
  • 6 replies
  • 1992 views

Hello,

When an STM32 microcontroller is debugged using ST-LINK and STM32CubeID, the program that is being debug is burn in the Flash?

In other words, when I debug a program in STM32 microcontroller, the program previously stored in the Flash is overwritten?

To sum up. My doubt is about if I can flash the microcontroller through STM32CubeIDE or it is necessary using the programing utility to flash the STM32.

Regards,

This topic has been closed for replies.

6 replies

Uwe Bonnes
Uwe Bonnes
Chief
September 9, 2020

You can debug programs running in flash and running in RAM. When running in RAM you have infinite breakpoints, when running in flash you are restricted to the number of flash breakpoints that the MCU debug unit provides.

SegmentFault
SegmentFaultAuthor
Associate II
September 9, 2020

And how I can select if the debug is from FLASH or from RAM in STM32CubeIDE?

TDK
TDK
September 9, 2020

It's in FLASH by default. To put it into RAM you would need to change the linker script. This is not typically done.

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PWilk.2
PWilk.2
Associate II
September 9, 2020

Yes, the program that was in flash is overwritten with the one being debugged using ST-LINK and STM32CubeIDE.

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