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I am trying to make GPIOs start up low based on a patch to my yocto u-boot recipe. I apply a patch to my u-boot recipe using devtool. The patch adds new inputs to the board_init file in u-boot (which ...
Camstillo's user avatar
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I am trying to learn RPi dev I cannot use an IDE on the RPi, because ultimately the RPi needs to run without a GUI (Incompatible with hardware I intend to use), so I want to use Visual Studio (or ...
Clive Galway's user avatar
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The CM3588 features a 40 pin GPIO connector, each pin being multiplexed to various functionalities. I whish to use a couple of them to connect a display via SPI. There are Python libraries out there ...
patmin's user avatar
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I have recently tried to connect a bno085 to my raspberryPi 3 B+ through SPI connection but it doesn't work as expected: For the majority of the sensor running the INT pin is pulled high which means ...
No0bYebY's user avatar
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I’m trying to talk to an EBYTE E32-900T30S LoRa module from a Raspberry Pi 4 using the Pi’s UART and a small Python wrapper. The module’s AUX pin goes HIGH, but I get no response to AT queries (e.g. ...
Dobrawa Rumszewicz's user avatar
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My DT describes GPIO as following: my-gpio = <&gpio4 20 0>; In Linux kernel v5.10 I use gpionum = of_get_named_gpio(np, "my-gpio", 0); of_get_named_gpio_flags(np, "my-gpio&...
Chris Liu's user avatar
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If I'm working for example with the Xilinx ZU2CG SoC, and a pin named as an "AC3" (xczu2cgsfvc784 pinout) is interesting for me, where can I find what is the gpio number under Linux for that ...
Александар's user avatar
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I have an application running on an NVIDIA Jetson Xavier NX (so, arm64) with a need to interface with a GPIO located on an i2c-connected expander (an MCP23008). I'm also using libgpiod v2.1, for what ...
riz94107's user avatar
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I have an old legacy system running LPC2368 as the measurement base card (lets call it SB) and LPC17xx on top of it. LPC2368 runs bare-metal C code and the LPC17xx runs a Linux OS. There is a base ...
Janne Paalijarvi's user avatar
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1 answer
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I've been scratching my head all day trying to work this one out. My MCU is an STM32C071KBU6. I am using a DMA to write to the GPIOA->BSRR register to look at signal timing with a scope. However, ...
Eman's user avatar
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I have a kernel module which provides a gpiochip, accessible from userspace using libgpiod (gpioget/set/mon, etc.). After moving from kernel 5.10 to 6.1, I get a new warning: not an immutable chip, ...
fadedbee's user avatar
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I'm trying to write bitbang 24-bit RGB LCD driver to display 240x320 with RGB, 3 color channels. My hardware has SDIO port that is emulated by PIO program so, no more pins available for LCD parellel ...
jay k's user avatar
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I have used python for a while now, however, I am new to using a Raspberry Pi and things such as GPIO pins. I recently bought a Freenove Ultrasonic starter kit to help me learn. They have a tutorial ...
George Guise's user avatar
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I'm working on an Android-based embedded system using a Qualcomm Snapdragon 865XR (XR2 HDK). I'm trying to power up a camera module that requires enabling a regulator tied to GPIO_159. This GPIO ...
DEV-AR-G's user avatar
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We are developing a product using the i.MX93 SoC. Our board design requires that a dedicated PSHOLD GPIO pin be toggled to completely cut power during shutdown. We attempted to use the gpio‑poweroff ...
A.A.'s user avatar
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