版主及各位高手您好：
在此先感謝版主幫小弟解決了終端機顯示之問題，但目前希望能將原本僅用OC1作可變電阻控制PWM DUTY調變改為利用2組OCx作同功能之可變電阻控制PWM DUTY調變(可分別例用VR1與VR2做2組PWM DUTY之控制)，是否可以請教版主另一組OC須如何設定以及搭配可變電阻去控制且依樣可顯示於終端機之上，還煩請各位回答了，以下是我的程式內容。

#include <p30fxxxx.h>
#include <adc10.h> // 將adc10函式的原型宣告檔案含入
#include <timer.h> // 將Timer函式的原型宣告檔案含入
#include "C30EVM_LCD.h"
#include <uart.h>
#include <outcompare.h> // 將Compare函式的原型宣告檔案含入

#define FCY 7372800 * 2 // 因為使用頻率為將外部 7.3728 MHz * 8 的模式 , 每一指令週期需 4 個 clock
// 所以 FCY = (7.3728 * 8 / 4 ) MHz = 7372800* 2

_FOSC(CSW_FSCM_OFF & XT_PLL8); // XT with 8xPLL oscillator, Failsafe clock off
_FWDT(WDT_OFF); // Watchdog timer disabled
_FBORPOR(PBOR_OFF & MCLR_EN); // Brown-out reset disabled, MCLR reset enabled
_FGS(CODE_PROT_OFF); // Code protect disabled

const char My_String1[]="\r\nDimming Level\r\n" ;
char My_String2[]="VR1:";
char My_String3[]="VR2:";


#define LED1 LATEbits.LATE0
#define CTRL_LED1 TRISEbits.TRISE0
#define LED7 LATBbits.LATB4
#define SW5 PORTEbits.RE8
#define INPUT 0
#define OUTPUT 1

void Init_ADC(void) ;
void SW5_Status(void);
void Init_Timer2(void);
void Init_UART(void) ;
void Show_ADC(void) ;
unsigned int Read_VR2(void);
void Init_OC1(void) ;



void _ISR _T2Interrupt(void)
{


LED1=!LED1;
IFS0bits.T2IF = 0 ;

}

int main( void )
{
SRbits.IPL=4;
ADPCFG=0xffff;
TRISB=0xffff;
LATB=0xffff;
SW5=INPUT;

Init_ADC( ) ; // 將ADC進行初始化設定
OpenLCD();
setcurLCD(0,0);
putrsLCD( My_String2 );
setcurLCD(0,1);
putrsLCD( My_String3);
Init_UART( ) ; // 對 UART 模組作初始化設定

putsUART1( (unsigned int *) My_String1 ) ;
Init_Timer2( );
Init_OC1();
TRISDbits.TRISD0=0;
CTRL_LED1 = 0 ;

while(1)
{
SW5_Status();



}
}

/***********************************************/

void SW5_Status(void)
{
while(SW5)
OC1RS=Read_VR2( );
Show_ADC( ) ; // 將類比轉換結果顯示
OC1R = ADCBUF0<<6 ;


}

// Subroutine to configure the OC module

void Init_OC1(void)
{
CloseOC1();

ConfigIntOC1(OC_INT_OFF & OC_INT_PRIOR_7);
// IEC0bits.OC1IE = 0 ;
// IFS0bits.OC1IF = 0 ;
// IPC0bits.OC1IP = 7 ;

OpenOC1(OC_IDLE_CON & OC_TIMER2_SRC &
OC_PWM_FAULT_PIN_DISABLE, 0, 0);
// OC1CON= 0x0006;
}

/***********************************************/
// Subroutine to configure the A/D module

void Init_ADC(void)
{

unsigned int Channel, PinConfig, Scanselect, Adcon3_reg, Adcon2_reg, Adcon1_reg;

ADCON1bits.ADON = 0; /* turn off ADC */

PinConfig = ENABLE_AN0_ANA & ENABLE_AN6_ANA; // Select port pins as analog inputs ADPCFG<15:0>

Adcon1_reg = ADC_MODULE_ON & // Turn on A/D module (ADON)
ADC_IDLE_STOP & // ADC turned off during idle (ADSIDL)
ADC_FORMAT_INTG & // Output in integer format (FORM)
ADC_CLK_AUTO & // Conversion trigger manually (SSRC)
ADC_SAMPLE_SIMULTANEOUS & // Sample channels individually (SIMSAM)
ADC_AUTO_SAMPLING_OFF&ADC_SAMP_OFF; // Sample trigger manually (ASAM)

Adcon2_reg = ADC_VREF_AVDD_AVSS & // Voltage reference : +AVdd, -AVss (VCFG)
ADC_SCAN_OFF & // Scan off (CSCNA)
ADC_ALT_BUF_OFF & // Use fixed buffer (BUFM)
ADC_ALT_INPUT_OFF & // Does not alternate between MUX A & MUX B (ALTS)
ADC_CONVERT_CH_0A& // Convert only channel 0 (CHPS)
ADC_SAMPLES_PER_INT_1; // 1 sample between interrupt (SMPI)

Adcon3_reg = ADC_SAMPLE_TIME_16 & // Auto-Sample time (SAMC)
ADC_CONV_CLK_SYSTEM & // Use system clock (ADRC)
ADC_CONV_CLK_4Tcy; // Conversion clock = 4 Tcy (ADCS)
// ADCS = 2*(154ns)/(1/Fcy)-1 = 3.5416

Scanselect = SCAN_NONE; // ADC scan no channel (ADCSSL)

OpenADC10(Adcon1_reg, Adcon2_reg, Adcon3_reg, PinConfig, Scanselect);

Channel = ADC_CH0_POS_SAMPLEA_AN6 & // CH0 Pos. : AN0, Neg. : Nominal Vref- Defined in ADCON2
ADC_CH0_NEG_SAMPLEA_NVREF &
ADC_CHX_POS_SAMPLEA_AN0AN1AN2&
ADC_CHX_NEG_SAMPLEA_NVREF; // (ADCHS)
SetChanADC10(Channel);

ConfigIntADC10(ADC_INT_DISABLE); // Disable ADC interrupt

}

/***********************************************/
// Subroutine to configure the Timer 2

void Init_Timer2(void)
{
ConfigIntTimer2( T2_INT_PRIOR_6 & T2_INT_ON ) ; // Timer2 的中斷優先等級設 6
// Timer2 的中斷 OFF

OpenTimer2( T2_ON & T2_IDLE_STOP & T2_GATE_OFF & // Timer2 的 Period 設為每 64ms
T2_PS_1_1 & T2_32BIT_MODE_OFF &
T2_SOURCE_INT,
1023) ;
}
/***********************************************/
// Subroutine to read analog voltage from VR2

unsigned int Read_VR2(void)
{
unsigned char Loop ;

ADCON1bits.SAMP = 1; // start sampling ...

for ( Loop = 0 ; Loop < 100 ; Loop ++ );

ConvertADC10();
while (BusyADC10()); // conversion done?
return ADCBUF0 ; // get ADC value
}

/***********************************************/
// Subroutine to initialize UART module

void Init_UART(void)
{
/* Holds the value of baud register */
unsigned int baudvalue;
/* Holds the value of uart config reg */
unsigned int U1MODEvalue;
/* Holds the information regarding uart
TX & RX interrupt modes */
unsigned int U1STAvalue;
/* Turn off UART1module */
CloseUART1();
/* Configure uart1 receive and transmit interrupt */
ConfigIntUART1(UART_RX_INT_EN & UART_RX_INT_PR6 &
UART_TX_INT_DIS & UART_TX_INT_PR2);
/* Setup the Buad Rate Generator */
baudvalue = 95; //UxBRG = ( (FCY/Desired Baud Rate)/16) – 1
//UxBRG = ( (7372800*2/9600)/16-1) = 95
/* Configure UART1 module to transmit 8 bit data with one stopbit.
Also Enable loopback mode */
U1MODEvalue = UART_EN & UART_IDLE_CON &
UART_DIS_WAKE & UART_DIS_LOOPBACK &
UART_DIS_ABAUD & UART_NO_PAR_8BIT &
UART_1STOPBIT;
U1STAvalue = UART_INT_TX_BUF_EMPTY &
UART_TX_PIN_NORMAL &
UART_TX_ENABLE & UART_INT_RX_CHAR &
UART_ADR_DETECT_DIS &
UART_RX_OVERRUN_CLEAR;
OpenUART1(U1MODEvalue, U1STAvalue, baudvalue);

return;

}

/***********************************************/
// Subroutine to show ADC on UART

void Show_ADC(void)
{
unsigned int ADCValue;
int Loop ;
ADCValue=0;

unsigned char TXdata[4];
ADCON1bits.SAMP = 1; // start sampling ...

for ( Loop = 0 ; Loop < 100 ; Loop ++ );
ADCON1bits.SAMP = 0;

ConvertADC10();
while (BusyADC10()); // conversion done?
ADCValue=ReadADC10(0);
setcurLCD(4,1);
put_Num_LCD(ADCValue>>2);
ADCValue=ReadADC10(1);
setcurLCD(12,1);
put_Num_LCD(ADCValue>>2);
ADCValue = (ADCBUF0 >> 2); // get ADC value

sitoa(ADCValue, (unsigned char *)TXdata);

putsUART1( (unsigned int *) "VR2 : ");
putsUART1( (unsigned int *) TXdata ) ;
putsUART1( (unsigned int *) "\r\n" );
putsUART1( (unsigned int *) "VR1 : ");
putsUART1( (unsigned int *) TXdata ) ;
putsUART1( (unsigned int *) "\r\n" );

}

//***********************************************
// Put a unsigned byte in decimal format
// to UART Module

void sitoa( unsigned char The_Number, unsigned char *buff)
{

unsigned char Temp_Char_100, Temp_Char_10, Temp_Char ;
unsigned char *temp = (unsigned char *)buff ;

Temp_Char_100 = The_Number /100 ; //取百位數的數字
temp[0] = Temp_Char_100 + '0' ; //取百位數的數字
Temp_Char_10 = (The_Number - Temp_Char_100*100) /10 ; //取十位數的數字
temp[1] = Temp_Char_10 + '0' ; //取十位數的數字
Temp_Char = The_Number - ( Temp_Char_100*100 + Temp_Char_10 * 10 ) ; //取個位數的數字
temp[2] = Temp_Char + '0' ; //取個位數的數字
temp[3] = 0 ;
}