Designs and Implementation of GPIO Enumeration Library and Application for UEFI-BIOSJournal: International Journal of Scientific Engineering and Technology (IJSET) (Vol.3, No. 5)
Publication Date: 2014-05-01
Authors : Srividya G Kedlaya; H R Bhagyalakshmi;
Page : 524-528
Keywords : GPIO; BIOS; UEFI; UEFI-Application; Microprocessor; EDKII;
General Purpose Input Output (GPIO) is a flexible software-controlled digital signal. Micro-processors heavily rely on GPIOs with only the BIOS firmware knowing how they're used. This paper aims at developing a GPIO library to enumerate all GPIOs’ configuration status and to create a stand-alone user application, which helps a user to configure the GPIO pins without diving into BIOS firmware. UEFI specifications are followed and EDKII is used.
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Last modified: 2014-09-27 23:27:12