iMX7 GPIO ChangeLog ============= V1.2 [January 17 2018] - sodimm 77 is not shown (fixed) - multiplexed pins are not shown (fixed) V1.1 V1.0 [April 6 2017] - Built with Toradex CE libraries V1.9. - Runs only on Colibri iMX7D and iMX7S modules. Features: - This tool lists all GPIOs of the Colibri module and shows how they are currently configured. - You can see if the GPIO is an Input, Output or if it's configured to some special Alternate Function (like LCD Pins). - You also see the GPIO Level in real-time (almost, sampled every 1ms). - The GPIO Direction, Level and Alternate Function can also be changed by right clicking on the corresponding column. - Another very useful feature is that the Tool shows the location of the GPIO pins on the SODIMM Module and the Evaluation Board, so that you don't need to go through any datasheet to find the GPIO you're trying to debug. - You can also sort the GPIOs by Direction, Alternate Function or SODIMM or Evaluation board location by clicking on the corresponding column header. - The settings can also be saved. This is useful if you want some GPIOs to be a different direction/level at each boot. Be careful when saving GPIO settings, because there are settings that will prevent the system from booting (like setting a GPIO that you use as a chip select to Output 0). If you saved something wrong and the system doesn't boot, don't worry, there is a way out: The saved GPIO settings are set by the boot-loader, but only just before loading the IMAGE, so if you stop the boot-loader boot process (by sending space to a serial port connected to the Colibri FFUART port) and enter the command Prompt mode (pressing X), you can change the GPIO configuration using the following command: setconfig gpio There you can set the GPIO registers, please take a look at GPIO Section in the Reference Manual (RM) for a detailed register description. When you are done type the following to save the settings: saveconfig gpio If you have any further questions, please send e-mail to support.arm@toradex.com. Have fun WinCE support team at Toradex