STM32F769 DCMI (Digital Camera interface)

[utpal kumar]

Posted on February 16, 2017 at 07:28

1>> We understand that

STM32F769 DCMI(Digital Camera interface) is able to process YCbCr 4:2:2 and RGB 565.

We could see sample camera program in STM32Cube with video input as RGB 565 format to DCMI module and displaying  on LCD with RGB888 format.

But we are not able to find sample program with YCbCr 4:2:2.

Can anyone please share sample program/related document to test YCbCr 4:2:2 input to the DCM and displaying on LCD.

2.

As we know that the IDE/work bench like IAR and Keil has license concerns,

we would like to know the suggestion from ST regarding the Free workbench/IDE available for STM32Cube code compilation for STM32F769I-EVAL board.

Thanks,

Utpal

[Imen.D]

Posted on February 16, 2017 at 17:24

Hi,

1- Maybe you can find several discussions in the STM32 forum that can help you, as this one with example for STM32F4 

https://community.st.com/0D50X00009XkbA7SAJ

 

2- You may refer to these manuals 

http://www.st.com/content/ccc/resource/technical/document/user_manual/6b/e1/91/9e/e2/6c/48/ea/DM00241074.pdf/files/DM00241074.pdf/jcr:content/translations/en.DM00241074.pdf

or 

http://www.st.com/content/ccc/resource/technical/document/user_manual/group0/d0/f7/45/d7/3b/96/47/b3/DM00285842/files/DM00285842.pdf/jcr:content/translations/en.DM00285842.pdf

Getting started with STM32 software development tools 

which provides a step by step guideline on how to build and debug an application using some toolchains as the free IDE 

http://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-ides/sw4stm32.html

by AC6 based on Eclipse.

Hope this helps you.

Imen

[utpal kumar]

Posted on February 21, 2017 at 09:56

Hi All,

I am facing issues mentioned below too.

Currently we are testing the sample camera application(DCMI capture example) given in the STM32Cube on STM32769i-Eval board.

Application Path:STM32Cube_FW_F7_V1.6.0\Projects\STM32F769I_EVAL\Examples\DCMI\DCMI_CaptureMode

We found the camera captured image is not proper and attached screen shot for reference.

We have checked another Camera application available in STM32Cube (DCMI snapshot mode and Camera to USBDisk ) and observed the same behavior.

Please let us know any specific configuration to be done (in SW/HW) to get proper image.

[Imen.D · Accepted solution]

Posted on February 21, 2017 at 14:53

Hi

kumar.utpal

,

Maybe you have the Jumper in JP10 !

So, remove the jumper JP10,then keep me updated on your results.

Regards

Imen

[utpal kumar]

Posted on March 10, 2017 at 13:32

Hey ,

Thank your so much .

Its working.:)

[Avgerinos]

Hello,

How do you convert YCbCr 4:2:2 input to RGB888 format in order to display it on LCD?

Do you handle the conversion in software?

Thank you