control an LED with a toggle button on TouchGFX

Forum|Forum|2 years ago
April 12, 2024
3 replies
2964 views

I'm new to TouchGFX and I'm attempting to control an LED with a toggle button on TouchGFX. I've written some code for it, but I'm encountering two errors that I'm having trouble understanding. Could you provide any advice or assistance on how to resolve these errors?"

c:\st\stm32cubeide_1.10.1\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.10.3-2021.10.win32_1.0.0.202111181127\tools\arm-none-eabi\bin\ld.exe:C:\TouchGFXProjects\MyApplication_3\STM32H735IGKX_FLASH.ld:91: non constant or forward reference address expression for section .ARM.extab
collect2.exe: error: ld returned 1 exit status
make: *** [makefile:74: STM32H735G-DK.elf] Error 1

"make -j12 all" terminated with exit code 2. Build might be incomplete.

TouchGFX

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Best answer by mƎALLEm

As said by @MM..1 you need to learn/understand how TGFX works.

I'm not a TouchGFX expert but I'm not in favor of using/including HAL in the GUI.

This is how TouchGFX is working: Model/Presenter/View layers: No HAL calls in the GUI.

You need to use model.cpp as interface between your low level/HW and the GUI.

I've already provided you in another thread a very simple tutorial on this link on how TouchGFX can interact with the low level application. The tutorial shows how to toggle a LED with a GUI toggle button and how to get the HW button status on the screen. This tutorial must help you.

mƎALLEm

Technical Moderator

You have one error on the linker file.
Did you modify it: STM32H735IGKX_FLASH.ld? Especially at line 91?

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