Touch gfx code optimization

[jijomathew]

hello, 

I'm currently developing an application that features more than 150 screens. However, I've encountered a significant challenge: once I build the code, the overall size exceeds the available flash memory. While I'm using external flash for images, I still need a solution to accommodate the large code base . What strategies or best practices can I implement to optimize my application’s size and ensure it runs smoothly? Any insights or recommendations would be greatly appreciated!

[Andrew Neil]

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@jijomathew wrote:

the overall size exceeds the available flash memory. While I'm using external flash for images, I still need a solution to accommodate the large code base

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How much Flash do you have?

What is the size of your built app?

[jijomathew]

1024 KB (STM 32 L496ZG) Microcontroller, once i build it is taking more than 100 percentage of flash

[SofLit]

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@jijomathew wrote:

1024 KB (STM 32 L496ZG) Microcontrolle

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Including TouchGFX stuff?

[jijomathew]

yes,

[SofLit]

So what is the purpose of the external Flash memory if you are locating TouchGFX stuff into the internal memory?

[jijomathew]

 To load Images 

[Andrew Neil]

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@jijomathew wrote:

1024 KB (STM 32 L496ZG) Microcontroller, 

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and what about the external Flash?

Please try to give as much information as possible, rather than just drip-feeding it.

https://community.st.com/t5/community-guidelines/how-to-write-your-question-to-maximize-your-chances-to-find-a/ta-p/575228

[jijomathew]

My application is built with an STM 32 L496ZG microcontroller, OLED display, and touch GFX, using touch GFX I have designed about 150 screens that have text boxes and images. External Flash(16MB)  is interfaced with a microcontroller to store the images used on different screens once, I try to build this code I get the following error.

[SofLit · Accepted solution]

Check you linker file and map file and find what you could move from the internal flash to the external one.