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TI Home » TI E2E Community » Support Forums » Digital Signal Processors (DSP) » DaVinci™ Video Processors » DM37x DaVinci Video Processor Forum » Accessing GPIOsfrom user space
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Accessing GPIOsfrom user space

Accessing GPIOsfrom user space

This question is answered
Ciphertelecom
Posted by Ciphertelecom
on Mar 07 2012 09:53 AM
Prodigy180 points

Hi, i'm trying with the DM3730 evm from Mistral. I want to know if it is possible to access GPIOs from user space, and what are the different ways to do this? I was trying to access it using the u-boot functions that are in the "dg_gpio.c" but when i try to read/write to the configuration register (GPIO_OE, CONTROL_PADCONF_X ...) i get a segmentation fault error?

Thanks in advance for the answers.

DM3730 DaVinci OMAP3530 DM3730 xloader u-boot
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  • Joseph Waclawski
    Posted by Joseph Waclawski
    on Jul 25 2012 08:44 AM
    Verified Answer
    Verified by BrandonAzbell
    Intellectual355 points

    Yes, it is possible. I know this question is from months ago, but I recently was searching for a solution for the DM81xx EVM, and came up with one. You can check out my blog posts here for an outline of the solution.

    http://e2e.ti.com/support/embedded/linux/f/354/p/201675/719976.aspx#719976

    If you need more info, just let me know.

    Cheers

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