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Multiplexed OctoSPI adventures

March 12, 2025 by jlangbridge

The SPI bus is a de facto standard for transmitting data to and from devices. In its most basic state, it has three wires: MOSI (Master Out Slave In), MISO (Master In, Slave Out), and a clock signal. Each chip also has a Chip Select pin to indicate whether you are talking to this specific … Read more

Categories Tech articles Tags Flash, Mulitplexed, OctoSPI, QuadSPI, SPI, STM32, STM32H5, STM32H563, STM32U5 Leave a comment

Watchdogs and debuggers

March 11, 2025March 11, 2025 by jlangbridge

What if I told you there was a pet inside your micro-controller? A watchdog (sometimes even two). Once you let it out of the kennel, you have to pet it regularly, or else it will bark. And you don’t want that. In the world of electronics, a watchdog is a security device that checks the … Read more

Categories Tech articles Tags DBG, Debug, IWDG, STM32, STM32H5, STM32H563, Watchdog, WDG Leave a comment

BLE Bluetooth DBG Debug ESP32 Espressif Flash IWDG Mulitplexed OctoSPI QuadSPI SPI STM32 STM32H5 STM32H563 STM32U5 Vulnerability Watchdog WDG

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