Articles: #zephyr
Dabbling with Zephyr Driver Development: STM32 direct LCD Driver
31st May, 2026 5min
I want to use an LCD glass on an STM32WB55RG, which has an LCD direct driver in hardware. You directly connect all LCD segment and common pins to the SoC. Because I want to use Zephyr but Zephyr doesn't have an LCD driver already, I implemented one myself.
Don't forget about the Option Bytes
7th May, 2026 4min
What's the reason for a watchdog taking 23 times as long to reset the device? It turns out the Flash Option Bytes are. And a mass erase doesn't reset those.
