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Learn when to apply volatile to hardware registers in embedded C, how it interacts with compiler optimizations and multi-core ordering, and how to validate the generated code and target behavior.
Learn how to use hardware interrupts on Arduino AVR boards to capture asynchronous events instantly, avoiding the latency and missed triggers associated with polling.
Learn how to use DMA on ARM Cortex-M microcontrollers to eliminate interrupt storms and reduce CPU overhead during peripheral data transfers.
MATLAB Coder compiles a subset of MATLAB, so the real work is making a function statically typed and bounded before you touch build flags.
External bus frames are untrusted. This architecture note covers a static-buffer, allocation-free parser with length and CRC checks before internal state is updated.
Learn how to implement deterministic Interrupt Service Routines (ISRs) in embedded C, focusing on volatile variables, critical sections, and avoiding non-reentrant functions.
Learn how Embedded C’s named address spaces let you place constant tables directly in flash, saving RAM and removing runtime copies—complete with a GCC‑AVR example, portability tips, and verification steps.
When accessing hardware registers in embedded C, compiler optimizations can silently break your code. The volatile keyword ensures the compiler reads the register each time. This article explains why volatile is essential, shows a GPIO ISR example, and discusses trade‑offs.
On FPU-less Cortex-M0/M0+ cores, soft-float can dominate a control loop. This post explains when Q15 fixed-point helps, how to handle Q30 intermediates and saturation, and a verifiable decision rule.
embeddedc
matlab