RTOS/TM4C1294NCPDT: How to dynamically change web/image files?

Caffein Lin

Part Number: TM4C1294NCPDT

Tool/software: TI-RTOS

Hello,

I currently have a well-running http server, but the page content is a bit large (including images) and the final productwill use the same program to correspond to different product models.

Different product models have different *.index and *.png.
Is there a way to change html files and image files while the program is running? (Transfer data via i2C)
(Update *.index, * .png depending on the situation)
Since *.index is converted to *.c, I don't know how to implement it now.

Thank you.

over 6 years ago

0 Charles Tsai over 6 years ago

TI__Guru**** 190806 points

Hi Caffein,
Unfortunately I don't see a way to dynamically update the image files. As you already pointed out the image/index will need to be converted to .c during compile time. Can you not have different html files preloaded to the flash and depending on which product model you have your http server will send the corresponding html file assuming you are not limited by the memory.

0 Charles Tsai over 6 years ago in reply to Charles Tsai

TI__Guru**** 190806 points

Hi Caffein,
If you find a workaround for your issue please do share with us. I can image reloading an image externally via the EPI interface but we never attempted this and therefore there is no such example. I will close this thread for now. If you have some working solution to share with us you can reply back to this thread.

0 Allen_Tseng over 6 years ago

Intellectual 420 points

Hi Caffein

I think you can write web file in flash.
When you need to update web through communication interface.
You can erase then and write new data in the same flash area.

Allen

0 Caffein Lin over 6 years ago in reply to Allen_Tseng

Prodigy 140 points

Hi Allen,

Thanks for your suggestions.
It sounds like this can be used this way.
Can you provide the basic fragment code?

regards,

Caffein

0 Caffein Lin over 6 years ago in reply to Charles Tsai

Prodigy 140 points

Hi Charles:

Thanks for your reply.
If there is an exact method, I will reply to this topic.

regards,

Caffein

0 Charles Tsai over 6 years ago in reply to Caffein Lin

TI__Guru**** 190806 points

Hi Caffein,
Thanks, please share with us if you have a robust way. Please note in Allen's suggested method, the program/erase of the flash will take time and this mean your client who is requesting the data will need to wait. I don't know if this will trigger some kind of timeout.

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RTOS/TM4C1294NCPDT: How to dynamically change web/image files?