exio.c

来自「ARM7_S3C44B0X全套培训资料及源代码(2)」· C语言 代码 · 共 98 行

#include "..\inc\44b.h"
#include "..\inc\ExIO.h"

void init_ADdevice()
{
	rADCPSR=20;
	rADCCON=ADCCON_SLEEP;
}

int GetADresult(int channel)
{
	rADCCON=(channel<<2)|ADCCON_ENABLE_START;
	while(!(rADCCON&ADCCON_FLAG));
	return rADCDAT;
}

void SetExIO(int IOnum, unsigned short int data)
{
	switch(IOnum){
	case 0:
		EXIO_IO0_ADDRESS=data;
		break;
	case 1:
		EXIO_IO1_ADDRESS=data;
		break;
	case 2:
		EXIO_IO2_ADDRESS=data;
		break;
	case 3:
		EXIO_IO3_ADDRESS=data;
		break;
	case 4:
		EXIO_IO4_ADDRESS=data;
		break;
	case 5:
		EXIO_IO5_ADDRESS=data;
		break;
	}
}

void init_ExPWM(int PWMclk, int PWMfreq)
{
	if(PWMclk==0)
		PWMclk=1;
	EXIO_PWMCLK_ADDR=(unsigned short int)PWMclk;
	EXIO_PWMFREQ_ADDR=(unsigned short int)PWMfreq;

	PWMclk=EXIO_PWMCLK_ADDR;
	PWMfreq=EXIO_PWMFREQ_ADDR;

//	Uart_Printf("\nPWMClk=%d\tPWMfreq=%d\n",PWMclk,PWMfreq);

}

void SetPWMWidth(int channel, int PWMWidth)
{
	switch(channel){
	case 0:
		EXIO_PWM0_ADDR=(unsigned short int)PWMWidth;
//		PWMWidth=EXIO_PWM0_ADDR;
//		Uart_Printf("PWMWidth=%d\n",PWMWidth);
		break;
	case 1:
		EXIO_PWM1_ADDR=(unsigned short int)PWMWidth;
		break;
	case 2:
		EXIO_PWM2_ADDR=(unsigned short int)PWMWidth;
		break;
	case 3:
		EXIO_PWM3_ADDR=(unsigned short int)PWMWidth;
		break;
	case 4:
		EXIO_PWM4_ADDR=(unsigned short int)PWMWidth;
		break;
	case 5:
		EXIO_PWM5_ADDR=(unsigned short int)PWMWidth;
		break;
	case 6:
		EXIO_PWM6_ADDR=(unsigned short int)PWMWidth;
		break;
	case 7:
		EXIO_PWM7_ADDR=(unsigned short int)PWMWidth;
		break;
	case 8:
		EXIO_PWM8_ADDR=(unsigned short int)PWMWidth;
		break;
	case 9:
		EXIO_PWM9_ADDR=(unsigned short int)PWMWidth;
		break;
	case 10:
		EXIO_PWMA_ADDR=(unsigned short int)PWMWidth;
		break;
	case 11:
		EXIO_PWMB_ADDR=(unsigned short int)PWMWidth;
		break;
	}
}