flash.c

ADI公司的ARM7的功能模块的源码

/*********************************************************************

 Author        : ADI - Apps            www.analog.com/MicroConverter

 Date          : Sept. 2005

 File          : Flash.c , RAM.c

 Hardware      : Applicable to ADuC702x rev H or I silicon
                 Currently targetting ADuC7026.


 Description   : This example demonstrate how to place functions in RAM.
 				 The UART is configured, the current PC location printed
				 to a termainl ( 9600-8-N-1 ), the program then jumps to
				 the RAM function and prints the current PC location to
				 the termainl.

 Note			: The files syscalls.c and serial.c are required.
		
*********************************************************************/


#include <ADuC7026.h>
#include<stdio.h>

//	Program Counter Defintion. Allows us to access R15.

register unsigned int R15 asm ("pc");

//	Function Prototype with required function attribute.

extern void Ram_Function(void) __attribute__ ((section (".ram_func")));

int main(void)
{
  	// Setup tx & rx pins on P1.0 and P1.1
	GP1CON = 0x011;
   	// Set UART to 9600bps 8-N-1
	COMCON0 = 0x80;			// Setting DLAB
	COMDIV0 = 0x88;			
   	COMDIV1 = 0x00;
   	COMCON0 = 0x07;			// Clearing DLAB

	//Print current program counter address ... currently executing from FLASH!!
	printf("This is the main Flash Function.\n");
	printf("The Current location of the Program Counter is : 0x%08X\n",R15);
    Ram_Function();

	return 0;
}