imx53 Moving VSYNC, HSYNC, DE signals?

[dustinwestaby]

I have my display working on the imx53 quickstart board. I used example code from the 'on-board diagnostic suite' to bring up the display.  However, I am transitioning to new hardware and need to move these three pins.

New Pins           Old Pins

HSYNC on K1    DIO_PIN2 on D3

VSYNC on J1     DIO_PIN3 on C2

DE on L1            DIO_PIN15 on E4

Searched the forums and found this is a common question, but I've never seen pins outside of the ipu's normal mux used.

I have a rough idea what needs to be done, I need to update my ipu_di.c / di_config() function and enable timers linked to the new pins.   What I can't figure out is the exact registers to set.

Is there a document that links the IPU_DI0_DW_GEN_i registers to IO pins?

[igorpadykov]

Hi Dustin

one can look at example for moving sync signals to other pins

Re: i.MX53: How to move VGA external HSYNC and VSYNC signals to different pins?

Best regards

igor

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[dustinwestaby]

What are my possible pin options for moving the signals?  I still can't find any supporting documentation.

[dustinwestaby · Accepted solution]

After playing around with this for a few weeks, I can say these are the only pin options available for VSYNC, HSYNC, and DE.  They can be used in any order.

• DI0_PIN15
• DI0_PIN2
• DI0_PIN3
• DI0_PIN4

Moving the pins is as simple as muxing them to the IPU module, then swapping the waveform numbers around in the di_config.