Hdmi to vga display application

tahimr · ‎09-08-2014

Hi there,

I am hardware engineer and i have little experience in firmware development

Recent day, i designed my board with the same configuration with ARM: i.MX6 cortex A9

I don't have a hdmi monitor, then i use HDMI to VGA cable to connect my board with VGA monitor.

Now, i just want to develop small software on linux to display something on VGA monitor for testing hardware.

I built debian os successfully on my board,also installed ubuntu host with necessary software(eclipse, tool chain..)

I found out some code in below link:

Is this kernel source code for hdmi driver?

How can i use this APIs for my application? any guide document or example?

Thank all,

Message was edited by: tahi mr

igorpadykov · ‎09-08-2014

Hi tahi

for i.MX6 Linux please read L3.0.35_4.1.0_LINUX_DOCS

L3.0.35_4.1.0_ER_SOURCE_BSP : i.MX 6Quad, i.MX 6Dual, i.MX 6DualLite, i.MX 6Solo and i.MX 6Sololite Linux BSP Source Code

Also you may wish to check bare metal tests

i.MX 6Series Platform SDK : Bare-metal SDK for the i.MX 6 series

Yes you can use HDMI to VGA converters, note VGA is analog interface while HDMI is digital.

Probably it is better to use true (genuine) HDMI monitor.

Best regards

chip

-----------------------------------------------------------------------------------------------------------------------

Note: If this post answers your question, please click the Correct Answer button. Thank you!

-----------------------------------------------------------------------------------------------------------------------

tahimr · ‎09-11-2014

Thank for your support. It's a lot of doc and make me confusing so much.

daonamthai · ‎09-11-2014

May be, this link is helpful for you:

Basically, you can modify and rebuild fb-test for your application

Source code example:

make command(depend on your compiler)

# arm-none-linux-gnueabi-gcc fbtest.c -o fb-test

or

# arm-linux-gnueabi-gcc fbtest.c -o fb-test

Sincerely,

td