Abstract:
Systems and methods for testing a peripheral in accordance with a MIPI protocol are provided. A test system can test a peripheral by providing user-5 specified control over a test processor (which is substantially the same processor the peripheral will interface with when installed) to test, calibrate, or both test and calibrate the peripheral. The test processor can communicate with the peripheral according 10 to the MIPI protocol, thereby effectively providing an actual “in-device” environment for testing and/or calibrating the peripheral.
Abstract:
Systems and methods for testing a peripheral in accordance with a MIPI protocol are provided. A test system can test a peripheral by providing user-5 specified control over a test processor (which is substantially the same processor the peripheral will interface with when installed) to test, calibrate, or both test and calibrate the peripheral. The test processor can communicate with the peripheral according 10 to the MIPI protocol, thereby effectively providing an actual “in-device” environment for testing and/or calibrating the peripheral.
Abstract:
An electronic device may have a variable refresh rate display. Static content may be displayed on the display at a lower refresh rate than moving content to conserve power. The display may include an array of pixels. Display driver circuitry in the display may load image data into rows of the pixels. The display driver circuitry may have digital-to-analog converter circuitry that supplies data signals to the array. The display driver circuitry may respond to a variable refresh rate control signal that is asserted and deasserted depending on whether static or moving image content is to be displayed. The display driver circuitry may use the digital-to-analog converter circuitry to apply a time-varying scaling factor to the image data. The magnitude of the scaling factor may be adjusted during transitions between refresh rates to help suppress luminance variations that might otherwise result in flickering on the display.