topic Re: i.MX25 PDK 1.0 in i.MX Processors

i.MX25 PDK 1.0

RamuV — Thu, 24 Sep 2009 15:38:57 GMT

Hi all,

i.MX25 PDK 1.0 debug board has 8 Green LEDs. I want to know

Which GPIO pins are connected to these LEDs ?

Thanks,

Ramu V

Re: i.MX25 PDK 1.0

Frias — Fri, 25 Sep 2009 05:30:44 GMT

Hello Ramu V,

The debug board LEDs are connected on the CPLD. Please refer to the pdk10_imx25_Hardware_UG.pdf and also the PDK schematics.

If you are using Redboot you can access the LEDs by using the "spi_cpld" command, try:

Redboot> spi_cpld 0x20000 0xff

That would lit all 8 LEDs.

The procedure is different on other i.MX PDKs where you had to write to CS5 to access the CPLD.

Hope this helps.

Best Regards,

Renato

Re: i.MX25 PDK 1.0

RamuV — Fri, 25 Sep 2009 15:49:45 GMT

Thanks Renato,

I will try it. Actually I want to write a GPIO driver for WindowsCE, I thought LEDs are the best way to

test it.

Regards,

Ramu V

Re: i.MX25 PDK 1.0

Vijayaragavan — Sat, 13 Jul 2013 12:00:50 GMT

Hi Renato Frias,

How are you? would need some help and guidelines for developing LCD driver for i.MX25 PDK board since am a newbie to linux driver development. are looking out for interfacing 8-bit monochrome Dot matrix LCD with i.mxpdk board that is 8 parallel lines(LCDC_LD0 - LCDC_LD7) from personality board is connected to monochrome LCD along with other necessary singals like HSYNC,VSYNC and LCD CONTRAST. But have no idea how to enable software features for this so that i will be able to dislpay "Hello World" string on the LCD.

or any sample code is also appreciated or some guidelines on those lines.

Thanks

Vijay