STM32F429 Custom TFT Board With 4.3" TFT

[Caan]

I have designed a STM32F429 Custom TFT Board With 4.3" TFT it is based on 32F429IDISCOVERY MCU + RAM + 4.3" TFT in 16 bit mode and I'm using TouchGFX.

I have few questions.
1) It is possible to remove External RAM from the System.
2) How to limit RAM Usage so as to use the internal MCU RAM only

[SofLit]

Hello,

Are you using TouchGFX for this case?

[Caan]

Hello,
         Yes, I am using the Touchgfx.

[SofLit]

Ok. Need to tell that in the first post because the answer may differ and your question could be generic not specific (related to TouchGFX).

I'm editing it then ..

[Caan]

I did specified that " I have designed a STM32F429 Custom TFT Board With 4.3" TFT it is based on 32F429IDISCOVERY MCU + RAM + 4.3" TFT in 16 bit mode and I'm using TouchGFX ".
 I would like to know your thoughts on using internal RAM as Frame buffer.

[SofLit]

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@Caan wrote:

I did specified that " I have designed a STM32F429 Custom TFT Board With 4.3" TFT it is based on 32F429IDISCOVERY MCU + RAM + 4.3" TFT in 16 bit mode and I'm using TouchGFX ".

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No. That was my edit ;)

One of the TouchGFX expert can help you on that.

[Caan]

Alright, Thank you for the help.

[Caan]

No Response till now!

[LouisB · Accepted solution]

Hello @Caan,

1) That's out of the touchgfx scope, this more related to linker script/ compilation of your project, your board as very little ram so it's useless.

2) You can try to do some optimization here and there but considering the size of the framebuffer, that's very small savings.

Best regards,