In the previous article, we peeked at the reset circuit of ESP-Prog with an oscilloscope, and reproduced it with basic components. We observed that it did not behave quite as expected. In this article, we’ll look into the missing pieces. An incomplete circuit For a hint, we’ll first look a bit more closely at the … Continue reading The missing part of Espressif’s reset circuit→ The post The missing part of Espressif’s reset circuit appeared first on Quentin Santos.| Quentin Santos
I recently discussed how Espressif implements automatic reset, a feature that lets users easily update the code on an Espressif microcontroller. There are actually more subtleties than a quick look would suggest, and I spent a fair bit of time investigating them. This article and the next two present (The missing part of Espressif’s reset … Continue reading Reproducing Espressif’s reset circuit →| Quentin Santos
In my previous article, I explained how Arduino makes the life of its users easier by automatically resetting the board when the UART pin DTR (or RTS) transitions from electrically high to low. This exploits the fact that this transition happens automatically when someone or something opens the serial device on the host. That is, … Continue reading Linux always toggles DTR & RTS→ The post Linux always toggles DTR & RTS appeared first on Quentin Santos.| Quentin Santos