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KAnahar
KAnahar
Associate III
May 21, 2022
Question

Is it possible i want to put my .c files to SD Card? I want to read that .c files on SD Card.

  • May 21, 2022
  • 4 replies
  • 1128 views

I am working on httpd server project. My website codes are high memory (200MB). I converted my html/css codes to C file (fsdata.c). My C files now 200MB. I want to use SD Card for reading to C files. How can i do it? My SD Card 2GB.

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4 replies

Tesla DeLorean
Tesla DeLorean
Guru
May 21, 2022

You'd need to add in SDIO/SDMMC and FATFS code to access the card, and them modify the file system code that deals with the fsdata so it recognizes a path that has files on the card, and then pulls and sends that data.​

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KAnahar
KAnaharAuthor
Associate III
May 21, 2022

do you have example code?

Tesla DeLorean
Tesla DeLorean
Guru
May 22, 2022

I write code for a living...

Suggest you start by porting one of the CubeF7 FATFS+SDMMC examples to your board. Once that works find an appropriate point in the LwIP server code to integrate reading from the the media via the FSDATA structures.

https://community.st.com/s/question/0D53W00001XvqhpSAB/i-am-using-stm32f7-series-i-created-httpd-server-ethernet-project-i-have-web-code-which-htmlcssjs-but-my-microcontrollers-memory-not-enough-for-these-codes-i-need-to-use-sd-card

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Pavel A.
Pavel A.
May 22, 2022

You don't want fsdata.c on the card for the web server. You want the binary data.

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