adc_pwm_module.c

来自「zigbee 飞思卡尔 音频传输 基于ucos的所有源码」· C语言 代码 · 共 31 行

#include "Adc_Pwm_Module.h"
OS_STK	AppTaskAudioInOutStk[256];			// The TaskStack for the PwmTask
//static uint32 da = 0;
extern int index_cpt;
/****************************************************
Fuction: initialize the Pwm1 Control Register

NOTE: There are at least two Errors in the pwm.h
	One is "#define MCF_PWM_PWMDTY1            (*(vuint8 *)(&__IPSBAR[0x1B0019]))"
		the right Address is (*(vuint8 *)(&__IPSBAR[0x1B0015]))
	Two is "#define MCF_PWM_PWMCNT1            (*(vuint8 *)(&__IPSBAR[0x1B000D]))"
		the right Address is (*(vuint8 *)(&__IPSBAR[0x1B001D]))
	
*****************************************************/

void ADC_InitPwmRegister()
{
	printf("Begin to Initializing PWM1 Register\n");

	//deal with PWM1
	MCF_GPIO_DDRTD = MCF_GPIO_DDRTD_DDRTD0;	// Set the direction of PTD0 output
	MCF_GPIO_PTDPAR |= MCF_GPIO_PTDPAR_PTDPAR0;// Select the IO function as pwm1
	
	
	MCF_PWM_PWME &= ~MCF_PWM_PWME_PWME1; 	// Disable the Pwm Chanl 1
	MCF_PWM_PWMPOL |= MCF_PWM_PWMPOL_PPOL1; // Begin low level
	
	
	/************************************************************************/ 
	//change PWM frequency here. now the frequency is 160kHz
	//refer to "MCF5213 ColdFire