main.c

NEC单片机部分程序调制,其中的一些入门程序源码.

#pragma sfr
#pragma ei
#pragma di
#pragma nop

#pragma interrupt INTSR6 uart6rec

void debugset(void);
void oscset(void);
void UART6_Init(void);
void uart6send(unsigned char *psend,unsigned char num);
void main(void);

volatile unsigned char RxTXbuf[10];
volatile unsigned char numr;
unsigned char FLAG_RD;

void main(void)
{
	oscset();
	WDTM = 0x7f;
	EI();
	debugset();
	FLAG_RD = 0;
	UART6_Init();
	numr=0;
	while(1)
	{
		NOP();
		NOP();
		if(0xaa == FLAG_RD)
		{
			//RXE6 = 0;
			NOP();
			NOP();
			//TXE6 = 1;
			NOP();
			NOP();
			FLAG_RD = 0;	
			uart6send(RxTXbuf,10);
			//TXE6 = 0;
			NOP();
			NOP();
			//RXE6 = 1;
			NOP();
			NOP();
		}
		NOP();
		NOP();
	}	
}






void debugset(void)
{
	PMK3 = 0; 
	PM4.1 = 1;
	INTM1 = 1;	
}
void oscset(void)
{
	PCC = 0;
	PPCC = 0;
	OSTS = 0;
}
void UART6_Init(void)
{
	P4.3 = 1;
	P4.4 = 1;
	PM4.3 = 0;
	PM4.4 = 1;
	ASIM6 = 1;
	CKSR6 = 1;
	BRGC6 = 208;
	
	
	ASIM6.4 = 0;
	ASIM6.3 = 0;
	ASIM6.2 = 1;
	ASIM6.1 = 0;
	ASIM6.0 = 1;
	
	
	
	ASICL6.1 = 1;
	ASICL6.0 = 0;
	
	SRIF6 = 0;
	SRMK6 = 0;
	
	STIF6 = 0;
	STMK6 = 1;
	
	POWER6 =1;
	RXE6 = 1;
	TXE6 = 1;
}

void uart6rec(void)
{
	RxTXbuf[numr++] = RXB6;
	if(numr>9)
	{
		numr=0;
		FLAG_RD = 0xaa;
	}
}
void uart6send(unsigned char *psend,unsigned char num)
{
	unsigned char i;
	STIF6 = 0;
	for(i=0;i<num;i++)
	{
		TXB6 = *(psend+i);
		while(STIF6==0);
		STIF6 = 0;
		NOP();
	}
}