The microcontroller driver is installed successfully but it shows that it is not installed. Code 28 usually means that the system cannot fully recognize the connected hardware device, the required driver is missing, and the hardware is incompatible with the system. This is a communication error between the hardware and the operating system. . Among them, missing drivers is the most common situation. This type of problem usually occurs when the device hardware ID does not match the pre-installed driver, the operating system update causes the existing driver to be incompatible, or the upgraded system fails to retain the original driver. Drivers serve as a bridge between the hardware and the operating system. Missing or incorrect drivers will cause the system to be unable to properly manage and use the hardware.
The lack of microcontroller drivers is often due to the driver not being installed according to the correct process, or the wrong driver version being used. In this situation, you need to re-download and install the correct driver. Usually, you can find the latest and compatible driver version from the official website of the microcontroller or the driver download page provided by the device supplier.
Sometimes, despite having the correct drivers installed, there may still be compatibility issues between the system and new hardware. After a system update, the original driver may no longer be compatible, or the new hardware may not fully support the older version of the operating system.
Communication errors may be caused by conflicts with other drivers in the system. Such an error may occur when there is another similar device in the system using the same system resources, such as an IRQ (Interrupt Request) or DMA (Direct Memory Access) channel.
When performing system upgrades or reinstalling the operating system, drivers may be lost. During the system upgrade process, existing driver files may be replaced, resulting in the need to reinstall the driver.
Sometimes driver installation fails because the driver installation was not performed in the correct process or sequence. The installation of some microcontrollers may require first installing the corresponding driver environment and then connecting the device.
All in all, when faced with the driving problem represented by code 28, it is necessary to comprehensively analyze and adopt corresponding solution strategies based on the specific situation. In practice, keeping the system and drivers updated in a timely manner, installing drivers correctly, and making backups before system changes are all effective ways to prevent such problems. If you can't solve the problem on your own, you may want to consider seeking help from professional technicians.
Q: My microcontroller driver has been successfully installed, but the device manager shows that the driver has not been installed. What does code 28 mean?
A: When code 28 appears in the Device Manager, it means that the driver for your device is not installed correctly or cannot be found. In this case, your microcontroller may not work properly. Here are some possible causes and solutions:
Incompatible driver version – Make sure the driver you download matches your microcontroller model and operating system. Try re-downloading and installing the correct version of the driver.
Driver not installed correctly – Make sure you followed the correct steps to install the driver. Occasionally, the installation process may encounter errors or interruptions. Before reinstalling, it is recommended to uninstall the existing driver and then install it again.
Device connection issues – Check if your device is well connected. Try changing the USB port or cable to make sure the device can communicate with the computer properly.
Operating system issues – The driver may be incompatible with your operating system. Make sure your operating system supports the version of your microcontroller driver.
Other software conflicts – Some software may conflict with the microcontroller driver, causing the driver to fail to install correctly. Try to install the driver in a clean system environment to avoid interference from other software.
If none of the above methods solve the problem, it is recommended to consult the device manufacturer or seek professional technical support. They can provide you with more specific solutions.