https://electwork.net/en/tags/nucleo-f401re/ Recent content in NUCLEO-F401RE on Electronics Lifehack! https://electwork.net/images/ogp-default.jpg?v=3 https://electwork.net/images/ogp-default.jpg?v=3 Hugo -- gohugo.io en Fri, 08 May 2026 00:00:00 +0900 https://electwork.net/en/posts/stm32-episode12/ Fri, 08 May 2026 00:00:00 +0900 https://electwork.net/en/posts/stm32-episode12/ The final episode: catch the moment C becomes machine code. How GCC optimization (-O0/-O2/-Os) rewrites your code, why forgetting volatile causes a hang, and how to read Thumb-2 instructions with objdump. https://electwork.net/en/posts/stm32-episode11/ Sat, 02 May 2026 00:00:00 +0900 https://electwork.net/en/posts/stm32-episode11/ Hands-on STM32 linker script and map file walkthrough on a NUCLEO-F401RE: what .text/.data/.bss really are, LMA vs VMA, and reading arm-none-eabi-size to find what eats Flash and RAM. https://electwork.net/en/posts/stm32-episode10/ Thu, 30 Apr 2026 00:00:00 +0900 https://electwork.net/en/posts/stm32-episode10/ Stop letting UART transmissions stall your main loop — DMA fixes it. From STM32's bus architecture to transfer-complete callbacks, buffer management, and the D-Cache coherency trap. Episode 10 of the series. https://electwork.net/en/posts/stm32-episode09/ Sun, 26 Apr 2026 00:00:00 +0900 https://electwork.net/en/posts/stm32-episode09/ Learn STM32 interrupt anti-patterns by deliberately breaking real code: ISR printf deadlock, volatile-missing optimization bugs, I2C timing breakdown, and non-atomic shared variable corruption. https://electwork.net/en/posts/stm32-episode08/ Fri, 17 Apr 2026 00:00:00 +0900 https://electwork.net/en/posts/stm32-episode08/ STM32 interrupts on the NUCLEO-F401RE, from zero: vector table structure, NVIC priority, context saving (8 registers auto-pushed to the stack), and a TIM2 periodic interrupt implementation. https://electwork.net/en/posts/stm32-episode07/ Wed, 08 Apr 2026 00:00:00 +0900 https://electwork.net/en/posts/stm32-episode07/ Measure execution time to µs precision with DWT CYCCNT on the STM32 NUCLEO-F401RE. Covers clock frequency, CPU cycles, how it differs from SysTick, and GPIO toggle plus oscilloscope measurement.