Tutorial for Bitwise Operations in C is Tutorial : Embedded programming basics in C – bitwise operations.Guide to Binary and Hexadecimal system is Hexadecimal and Binary Number System basics for Embedded Programming In this tutorial we see how to use and program GPIO Pins for lpc214x ARM 7 microcontrollers from NXP/Philips.īefore getting into this you need to have basic understanding of Binary and Hexadecimal system and Bitwise operations in C. The use of GPIO is not limited to driving LEDS but can be also used for reading digital signal, generating triggers for external components, controlling external devices and what not. Its also quite evident that the most popular “hello world” program in embedded systems programming is Blinky i.e a LED connected to pin on the Microcontroller that keeps blinking. General Purpose Input Output) pins are one of the first things played with. When getting started in embedded programming, GPIO (viz.
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