/**********************************************************/
//MSP430 Advanced Developping Components - [BaseComponents_44.C]
////Flash In-System Programming, Copy SegA to SegB
////->>> http://www.dutzm.cn
////->>> tel :(0)13130044096
/**********************************************************/
//MSP430高級實驗開發組件 - Flash操作,讀取與回寫
//時鐘設置:
////MCLK 550kHz - 900kHz.
//當前演示程序功能描述:
////MSP430片內的Flash操作,將SEGA中內容復制到SEGB中
/*********************************************************/

#include <msp430x14x.h>

unsigned char  value;
void  write_SegA (unsigned char value);
void  copy_A2B (void);

void main(void) {
	WDTCTL = WDTPW + WDTHOLD;		//關閉看門狗
	
	FCTL2 = FWKEY + FSSEL0 + FN0;		//MCLK/2作為Flash操作時鐘
	value = 0;
	
	while(1) {
		write_SegA(value++);		//向Flash的A段寫入數據
		copy_A2B();			//將A段數據寫入B段
		_NOP();				//加入斷點觀察數據
	}
}

void write_SegA (unsigned char value) {
	unsigned char *Flash_ptr;		//Flash操作用指針
	
	unsigned int i;
	Flash_ptr = (unsigned char *) 0x1080;	//初始化指針
	FCTL1 = FWKEY + ERASE;			//允許擦除數據
	FCTL3 = FWKEY;				//清除鎖定
	
	*Flash_ptr = 0;				//寫入數據
	
	FCTL1 = FWKEY + WRT;			//設置WRT,向Flash中寫入
	
	for (i=0;i<128;i++) {
		*Flash_ptr++ = value;		//向Flash中寫入
	}
	
	FCTL1 = FWKEY;				//清除WRT寫入標志位
	FCTL3 = FWKEY + LOCK;			//鎖定Flash寫入
}


void copy_A2B (void) {
	unsigned char *Flash_ptrA;		//段A指針
	unsigned char *Flash_ptrB;		//段B指針
	
	unsigned int i;
	Flash_ptrA = (unsigned char *) 0x1080;		//初始化段A指針
	Flash_ptrB = (unsigned char *) 0x1000;		//初始化段A指針
	FCTL1 = FWKEY + ERASE;			//允許擦除數據
	FCTL3 = FWKEY;				//清除鎖定
	*Flash_ptrB = 0;			//寫入數據
	FCTL1 = FWKEY + WRT;			//設置WRT,向Flash中寫入
	
	for (i=0;i<128;i++) {
		*Flash_ptrB++ = *Flash_ptrA++;	//復制數據
	}

	FCTL1 = FWKEY;				//清除WRT寫入標志位
	FCTL3 = FWKEY + LOCK;			//鎖定Flash寫入
}