Implementing Real-Time Clock Interfaces in HarmonyOS Hardware Drivers
Core Functionality
The Real-Time Clock (RTC) module serves as the temporal backbone for embedded operating systems. It maintains accurate system time and supports scheduled alarm events. Leveraging an external backup power source, the RTC preserves timekeeping operations during system shutdowns. Upon power restoration, it synchronizes the OS cl ...
Posted on Sun, 20 Sep 2026 16:06:53 +0000 by jevman
Implementing OpenHarmony HDF Platform Drivers for SoC Porting
Drivers in OpenHarmony are categorized into platform drivers and device drivers. Platform drivers handle on-SoC peripherals such as GPIO, I2C, and SPI controllers. Device drivers manage external components like LCD displays, touch panels, and WLAN modules connected to the SoC.The HDF (Hardware Driver Foundation) framework enables cross-operatin ...
Posted on Mon, 18 May 2026 23:35:21 +0000 by alwaysinit
Device Driver Porting in OpenHarmony
LCD Driver Porting
The primary task for porting an LCD driver involves creating a driver that instantiates a panel model and completes the registration process.
LCD drivers reside in the source directory //drivers/hdf_core/framework/model/display/driver/panel.
Creating a Panel Driver
Implement an HDF driver and invoke the RegisterPanel interfac ...
Posted on Thu, 07 May 2026 08:35:56 +0000 by slapdashgrim