For larger display’s with high resolution a faster interface should be chosen. A parallel RGB interface is capable of high-speed data transmission however requires many pin connections. For smaller displays a 3/4-wire serial interface would be sufficient. Each display has a different interface or different choices for a connection interface. The interface selection is dependent on the intended application of the display. Compatibility with a familiar programming environment is additionally beneficial. Online resources and example programs to leverage from can a lot of save time. Check the datasheet of the display’s IC controller for device function specifics.Īvailability of resources for programming and debugging the microcontroller. This can save resources otherwise needed to be provided externally. This will indicate which processors are compatible.Ī displays embedded IC can offer resources such as internal RAM, clock generators and power control. Refresh rate is determined on the size of the display and location of memory. Location of memory (external or internal) can restrict interface speed and must be compatible with the chosen interface.Ĭommunication speed requirements defined by the interface and intended application. Minimum frame buffer memory is dependent on the size and resolution of the display. Determines pin connections and required architecture of the device.įlash and RAM memory requirements. I2C, SPI, UART, Parallel, MIPI, LVDS, HDMI etc. No.Īpplication and display specific peripheral requirements. It should be noted that these items are separated for definition but may serve the same purpose and be interconnected in the ecosystem of the controller. An overview of the considerations when choosing a microcontroller can be seen below. These can also be determined by the embedded IC in the display. A few requirements need to be met depending on the display’s features, interface, and size. This note will discuss the considerations made when choosing a microcontroller that will work for your display. LCD Resources Choosing a Microcontroller for Your Display
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