Difference between revisions of "Switch and LED with Explore M3"
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=Hardware Connection= | =Hardware Connection= | ||
| − | ExploreM3 comes with on board led connected to pin 13 | + | ExploreM3 comes with an USB_BOOT switch and on board led connected to pin 13. |
<br><br><br> | <br><br><br> | ||
Revision as of 14:44, 28 April 2016
In this tutorial we will see how read a switch and trun ON/OFF the LED/Buzzer/Relay using the explore Embedded bare metal libraries. The libraries can be used on different platforms like Keil, ARM GCC, GCC And Eclipse etc.
Contents
[hide]Prerequisites
Please check this tutorial for detailed explanation on lpc1768 Gpio configuration.
If you are doing it for the first time, then check the below links to setup the project for generating the .bin file.
Hardware Connection
ExploreM3 comes with an USB_BOOT switch and on board led connected to pin 13.
Code
Below is the sample code to read the switch status and turn ON/OFF the LED.
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| #include "delay.h" | |
| #include "gpio.h" | |
| #include "stdutils.h" | |
| #define LED 13 //LED is connected to pin 13 on Explore M3 board | |
| int main() | |
| { | |
| SystemInit(); //Clock and PLL configuration | |
| GPIO_PinFunction(LED,PINFUN_GPIO); // Configure Pin for Gpio | |
| GPIO_PinDirection(LED,OUTPUT); // Configure the pin as OUTPUT | |
| while(1) | |
| { | |
| GPIO_PinWrite(LED,HIGH); // Turn ON the Led | |
| DELAY_ms(100); // Wait for some time | |
| GPIO_PinWrite(LED,LOW); // Turn OFF the Led | |
| DELAY_ms(100); // Wait for some time | |
| } | |
| } |