TO TURN ON THE LED USING LPC2148

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SIMULATOR: PROTEUS 8.0

SOFTWARE: KEIL 

CIRCUIT DIAGRAM:


WORKING:

This project is about turning on the led connected to P0.0 pin of lpc 2148.In this project,LED is connected in current sinking arrangement.

Whenever logic 0 is provided to P0.0 pin of lpc 2148, LED get turned ON.As in this project current sinking arrangement is used hence logic 0 is provided to turn on the led.

PROGRAM:

#include<LPC214x.h>      // Header file of LPC2148
int main()
IODIR0=0x00000001;// select p0.1 as an output pin
PINSEL0=0x00000000; // select gpio function of p0.1
while(1)   // continuous loop
{
IOCLR0 = 0x00000001;//turn on the led
}
}

PROGRAM DESCRIPTION:

Here,using IODIR register p0.0 pin is set as an output pin.PINSEL0 register is used to select the GPIO(General purpose input/output pin) function of the pin.
Using IOCLR register logic 0 is provided to port 0.0 pin.While loop is used for the continuous process.

VIDEO:

 

 


Note:

Please refer below article to know more about IODIR and PINSEL register and how to configure the pins in input and output mode?
https://embeddedprojects222.blogspot.com/2021/05/how-to-select-direction-of-port-as.html

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