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middleware-and-os

Resolving Deadlocks in ESP32 Robotic Arm Control with FreeRTOS

Hey guys i’m attempting on working on an ESP32 robotic arm control system using FreeRTOS and MQTT, but the system occasionally freezes. I suspect a deadlock between `controlArmTask` and `sendCommandTask`. […]

Handling Non-Atomic Operations for 64-bit Variables on a 32-bit Non-Preemptive System

Hi everyone, @Middleware & OS I’m struggling to find sufficient material on handling non-atomic operations, and I’d appreciate some guidance. I need to maintain a microsecond count in a 64-bit […]

Using Google Test for C-Code and mocking C-Modules

I currently face a situation where I have to use Google Test for C-Code. So I am not really able to use gmock to mock C-modules. What I want to […]

Troubleshooting BME280 Sensor Data Reading Issue on Raspberry Pi Pico with MicroPython

Hello, I am trying to interface a BME280 sensor with a Raspberry Pi Pico using MicroPython over I2C to monitor environmental conditions such as temperature, humidity, and pressure. However, I […]

Optimizing a bubble sort implementation in C for an x86-64 architecture

Hello , I’m working on optimizing a bubble sort implementation in `C` for an `x86-64` architecture specifically targeting an Intel Core i7 processor using `GCC 11.2` . I noticed that […]

How can I scan for available I2C devices on the bus?

@Middleware & OS @everyone How can I scan for available I2C devices on the bus? Am getting the error `Could not open file /dev/i2c-1: No such file or directory`, I […]

I need to monitor hall sensors for position encoding with up to 350 changes per second.

Alright guys, I need to monitor hall sensors for position encoding with up to 350 changes per second. My current Python program watches GPIO pins but uses too much CPU. […]

Debugging Persistent Segmentation Fault in Multi-threaded C++ Program on AMD Barcelona CPUs

I have been wrestling with a persistent segmentation fault in a multi-threaded C++ program running on a cluster of AMD Barcelona CPUs Linux/x86_64. The code causing the crashes is a […]

Using an AVR microcontroller with Zephyr to read data from an ADC via SPI

Hey guys, I’m using an AVR microcontroller with Zephyr to read data from an ADC via SPI. I’ve configured the SPI peripheral and device tree, but the data coming back […]

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