Writing an I2C Driver in Embedded C
KEY TAKEAWAYS Why Write Your Own I2C Driver? In the I2C protocol deep dive, we explored the protocol using bit-banged implementations. While bit-banging is great… Read More »Writing an I2C Driver in Embedded C
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Embedded C
Master C programming for embedded systems — pointers, structures, bitwise operations, memory management, volatile, preprocessor macros, and common pitfalls. Every example targets real microcontrollers.
I2C Protocol Deep Dive for Embedded Engineers
KEY TAKEAWAYS What Is I2C? I2C (Inter-Integrated Circuit), pronounced “I-squared-C” or “I-two-C,” is a synchronous, half-duplex serial communication protocol invented by Philips Semiconductor (now NXP)… Read More »I2C Protocol Deep Dive for Embedded Engineers
Writing an SPI Driver in Embedded C: Complete Implementation
KEY TAKEAWAYS SPI Driver Architecture A production SPI driver manages two concerns: the SPI bus (hardware peripheral configuration, byte transfer) and SPI devices (CS pin,… Read More »Writing an SPI Driver in Embedded C: Complete Implementation
Writing a UART Driver in Embedded C: From Registers to API
KEY TAKEAWAYS Driver Architecture A production-quality UART driver is more than a putchar() function. It must handle concurrent transmit and receive, buffer management, error detection,… Read More »Writing a UART Driver in Embedded C: From Registers to API
Mutual Exclusion in RTOS: Mutexes, Critical Sections, and Atomics
KEY TAKEAWAYS Part of the Complete Guide to RTOS for Embedded Systems series. When multiple RTOS tasks access the same data or hardware, you must… Read More »Mutual Exclusion in RTOS: Mutexes, Critical Sections, and Atomics
Memory Management Strategies for RTOS Applications
KEY TAKEAWAYS Part of the Complete Guide to RTOS for Embedded Systems series. Memory management in RTOS-based embedded systems requires different strategies than desktop or… Read More »Memory Management Strategies for RTOS Applications
RTOS Queues and Message Passing: Complete Guide
KEY TAKEAWAYS Part of the Complete Guide to RTOS for Embedded Systems series. Queues are the primary mechanism for passing data between RTOS tasks safely.… Read More »RTOS Queues and Message Passing: Complete Guide
Interfacing Sensors with Microcontrollers: ADC, I2C, SPI, and 1-Wire
KEY TAKEAWAYS Part of the Complete Guide to Sensors for Embedded Systems series. Getting data from a sensor into your microcontroller is a fundamental embedded… Read More »Interfacing Sensors with Microcontrollers: ADC, I2C, SPI, and 1-Wire
RTOS Inter-Process Communication: Semaphores, Event Flags, and Notifications
KEY TAKEAWAYS Part of the Complete Guide to RTOS for Embedded Systems series. Beyond queues (which transfer data), RTOS provides signaling mechanisms for coordinating between… Read More »RTOS Inter-Process Communication: Semaphores, Event Flags, and Notifications
Interface Segregation Principle (ISP) in C
Learn the Interface Segregation Principle with practical C examples. See how splitting bloated interfaces into small, focused ones prevents unnecessary dependencies.