H5, bank switching, and peripherals — firmware engineering notes on the STM32 platform.
The pipeline ran. Interrupts fired. DMA counters incremented. Every status register said the system was healthy. The buffers were empty. Three days of debugging, one register field.
A guide to CAN controllers, transceivers, and bus configuration When our team began developing IoT devices for a pet environment platform, we faced a critical challenge: transmitting high-resolution sensor data between multiple ECUs with microsecond-level timing precision. We needed CAN FD. But CAN FD isn't just "CAN,
How dual-bank architecture enables seamless, zero-downtime firmware updates via CAN Firmware updates are crucial for modern embedded systems, enabling remote device maintenance, feature additions, and security patches without physical access. This post covers a production implementation on the STM32H562, which features a dual-bank flash architecture enabling seamless firmware updates through