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− | [[category: ARM Tutorials]] | + | #REDIRECT [[LPC1768: Led Blinking]] |
− | [[User:Amruta|Amruta]] ([[User talk:Amruta|talk]]) 11:24, 17 March 2015 (IST)
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− | -----
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− | =Basics=
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− | ===lpc17xx header file===
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− | This is peripheral access header file for NXP LPC17xx device series. It contains all required register and peripheral definitions which one requires in order to access any peripheral.
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− | ===PINSEL and GPIO===
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− | =Schematic=
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− | =Code=
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− | <syntaxhighlight>
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− | #include "lpc17xx.h" // NXP Library containing all port abd register definations
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− | #include "stdutils.h" // Explore Embedded library
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− | #define LED 29 //P1.29
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− | #define SWITCH 28 //P1.28
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− | int main()
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− | {
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− | SystemInit();
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− | LPC_PINCON->PINSEL3 = 0x00; // Configure Pin as GPIO
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− | util_BitSet(LPC_GPIO1->FIODIR,LED); // Set pin direction as output
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− | util_BitClear (LPC_GPIO1->FIODIR,SWITCH); // Set pin direction as input
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− | while(1)
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− | {
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− | if (util_IsBitCleared (LPC_GPIO1->FIOPIN,SWITCH)) // check if switch is pressed
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− | util_BitSet (LPC_GPIO1->FIOSET,LED); // turn on LED
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− | else
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− | util_BitSet (LPC_GPIO1->FIOCLR,LED); // turn off LED
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− | }
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− | }
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− | {{DISQUS}}
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