how to program lpc1768 in thumb mode?

[manoharn]

#include "lpc17xx.h"

#define LED (1 << 29)

void delay(unsigned  long int count)
{ 	unsigned long int j;
   for(j = 1000000; j > 0; j--);

}

int main (void)
{	    		

	
	SystemInit();

	LPC_GPIO1->FIODIR   |=  LED;				// P1.29 = Outputs 
	LPC_GPIO1->FIOCLR 	 =  LED;				// Turn-OFF LED

	//Loop LED Test
	while(1)
	{
		LPC_GPIO1->FIOSET 	 =  LED;				// Turn-ON LED
		//for(j = 1000000; j > 0; j--);
		 delay(1);
		LPC_GPIO1->FIOCLR 	 =  LED;				// Turn-OFF LED
	//	for(j = 1000000; j > 0; j--);
	 delay(1);
	}
}

this is the program working properly in arm mode .Please guide me what are all the changes i need to make for this program to run in thumb mode.

 

[pinout]

this is the program working properly in arm mode .Please guide me what are all the changes i need to make for this program to run in thumb mode.

I'm interested in understanding your question, as I use the mBed LPC1768 and may be porting my design to a bare processor.

What do you define as "arm mode" and "thumb mode"?

 

[manoharn]

sorry actually i got to know by edaboard member ,that cortex lpc178 is working in thumb mode only.

 

[keith1200rs]

https://en.wikipedia.org/wiki/ARM_architecture#Thumb

Keith