v3k_fram_watch_sdcc.c

这是ramtron公司的铁电单片机的开发程序

//-------------------------------------------------------------------------------------------------------//
// V3K_FRAM_Watch_SDCC.c  //
//------------------------//
// The FRAM display function is not available when the parallel port version
// of the Versa JTAG interface is used.
//
// However it is still possible to monitor the content of specific FRAM address locations  
// using the Watch function in the VersaWare JTAG debugger.    
// 
// To define a Watch variable pointing to the the address 8100h FRAM memory: 
//
//   1) Select the Watch->Add... menu item.  An "Add Watch" window will appear
//   2) In the "Name" Edit Box, enter the name you want to be displayed 
//      for this FRAM address in the watch list.
//   3) The "location" should be set to XRAM
//   4) Type 8100 in the "address" edit Box
//   5) The value type chosen depends on the parameter to watch size.  Lets chose char
//   6) Finally set the parameter "display as" setting and click 
//
//   The simple demo program below can be used to test the FRAM watch variable setting. 
//
//
// Rev 1.0	
// www.ramtron.com
//-------------------------------------------------------------------------------------------------------//
#include <VRS51L3074_SDCC.h>


//--Init pointer to FRAM base address
xdata at 0x8000 unsigned char frambase;				//Init  a char variable pointing to FRAM
xdata unsigned char * data framptr = &frambase ;		//Init a pointer in IRAM pointing to the frambase var.


//-----------------------------------------//
//             MAIN FUNCTION               //
//-----------------------------------------//
 void main (void){
     volatile idata count = 0x00;                      //general purpose counter 
	volatile idata int  cptr= 0x00;			     //general purpose counter
	volatile idata char framread = 0x00;
	
	DEVMEMCFG  |= 0xC0;					     //Activate the FRAM memory
     framptr = (&frambase + 0x100);

     do{
     *framptr = count++;
     
     }while(1);
     


}//end of Main