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Best Open-Source Compiler Toolchain for AVR Microcontrollers:The avr-gcc toolchain (part of the GNU Compiler Collection) remains the gold standard for AVR microcontrollers and is expected to stay relevant in 2025. Key reasons include: Alternatives: Is SDCC Still Relevant in 2025 for AVR? SDCC is not a primary choice for AVR development. Its relevance in 2025…

I remember looking at the Intel MCS-96 datasheets in the 1990s and admiring the fact that the more expensive 16-bit controller family had the HSO/HSI (High speed output/input) capability.