LED INTERFACING WITH LPC2148 PDF

Every GPIO pin has a minimum of one function and max of four functions. As there can be up to 4 functions associated with a GPIO pin, two bits for each pin are available to select the function. By this, the first 16 P0. The remaining 16 bits P0. As mentioned earlier every pin has a max of four functions. This register individually controls the direction of each port pin.

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Every GPIO pin has a minimum of one function and max of four functions. As there can be up to 4 functions associated with a GPIO pin, two bits for each pin are available to select the function. By this, the first 16 P0.

The remaining 16 bits P0. As mentioned earlier every pin has a max of four functions. This register individually controls the direction of each port pin.

This register controls the state of output pins. Writing 1s produces highs at the corresponding port pins. Writing 0s has no effect. Reading this register returns the current contents of the port output register, not the physical port value.

Writing 1s produces lows at the corresponding port pins. Output: Writing to this register places corresponding values in all bits of the particular PORT pins. Input: The current state of digital port pins can be read from this register, regardless of pin direction or alternate function selection as long as pins are not configured as an input to ADC. Program to demonstrate the LED blinking.

For that you need to include the gpio. The below sample code shows how to use the GPIO functions. Download the complete project folder from this link. Have an opinion, suggestion , question or feedback about the article let it out here! Please enable JavaScript to view the comments powered by Disqus. Log in.

LPC Led Blinking. Category : LPC Tutorials.

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led interfacing with ARM7 ( LPC2148 )

LPC to be specific seems like not appreciating the capabilities of the processor. But why blinking LEDs? If you are using a development board, then all the connections are already made on the board. All you need to do is to power — up the board, upload the program to the MCU and see the output. Rest of the connections will be already made on the LPC stand — alone board. The working of the project is very simple. The project can be understood better if we go through the program and understand it.

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Blinking LED Using ARM7 LPC2148 Microcontroller

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