/********************************************************************* * Flowcode PWM Component Code * * File: PIC16BIT_PWM.c * * (c) 2010 Matrix Multimedia Ltd. * http://www.matrixmultimedia.com * * Software License Agreement * * The software supplied herewith by Matrix Multimedia Ltd (the * “Company”) for its Flowcode graphical programming language is * intended and supplied to you, the Company’s customer, for use * solely and exclusively on the Company's products. The software * is owned by the Company, and is protected under applicable * copyright laws. All rights are reserved. Any use in violation * of the foregoing restrictions may subject the user to criminal * sanctions under applicable laws, as well as to civil liability * for the breach of the terms and conditions of this licence. * * THIS SOFTWARE IS PROVIDED IN AN “AS IS” CONDITION. NO WARRANTIES, * WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED * TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. THE COMPANY SHALL NOT, * IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL OR * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER. * * Changelog: * * date | by | description * -------+----+----------------------------------------------------- * 260207 | ST | Created * 010307 | ST | Changed due to 2 PWMs within 1 component * 250309 | BR | Added 10-bit PWM functionality * 130509 | BR | Added % definitions to DefinesCode section * 290609 | SK | SetDutyCycle10bit - CCPxCON code moved inside nIdx test blocks. CCPxCONtemp variable added to prevent multiple read-modify-writes on working registers. * 131109 | BR | Fixed #pragma error HITECH problem * 300710 | SK | Converted to PIC16BIT * 100910 | BR | Updated to work with reallocatable pins * 290910 | BR | Init code now works with allocatable pins ********************************************************************/ /********************************************************************* Return & parameter types: void char short char* Pin directions: 0 = OUTPUT 2 = INPUT 3 = BIDIRECTIONAL ********************************************************************** [Settings] CLSID={78F46BA6-E118-42D2-AF9E-22B628E3248E} IsAnalogue=0 MultipleAllowed=0 Description=PWM ********************************************************************** [Port] DesiredPort=0 PortMandatory=0 SamePortAsID=0 [Pins] Count=0 1= 2= 3= 4= [PinDirection] 1= 2= 3= 4= [PinDesiredBit] 1= 2= 3= 4= [BitMandatory] 1= 2= 3= 4= ********************************************************************** [MacroNames] Count=5 1=Enable 2=Disable 3=SetDutyCycle 4=ChangePeriod 5=SetDutyCycle10bit [MacroReturns] 1=void 2=void 3=void 4=void 5=void [MacroIsPrivate] 1=0 2=0 3=0 4=0 5=0 [MacroParameters_Enable] Count=1 1=nIdx [MacroParamTypes_Enable] 1=char [MacroParameters_Disable] Count=1 1=nIdx [MacroParamTypes_Disable] 1=char [MacroParameters_SetDutyCycle] Count=2 1=nIdx 2=nDuty [MacroParamTypes_SetDutyCycle] 1=char 2=char [MacroParameters_ChangePeriod] Count=2 1=nPeriodVal 2=nPrescalerVal [MacroParamTypes_ChangePeriod] 1=char 2=char [MacroParameters_SetDutyCycle10bit] Count=2 1=nIdx 2=nDuty [MacroParamTypes_SetDutyCycle10bit] 1=char 2=short ********************************************************************/ /******************************************************************** * ADDITIONAL CODE ********************************************************************/ /*DefinesCode_Start*/ /**** Macro Substitutions **** %a = Timer 2 Rollover Value %b = Timer 2 Prescaler Value %c = Unused %d = Alternate Pin Enable ******************************/ /*DefinesCode_End*/ /*InitialisationCode_Start*/ //Remappable PWM Functionality #ifdef MX_PWM_PORT_FREEALLOC //configure remapping RPOR0 = (RPOR0 & 0xFF00) | 0x0012; //Assign PWM OC1 - RP0 / PORTB0 RPOR0 = (RPOR0 & 0x00FF) | 0x1300; //Assign PWM OC2 - RP1 / PORTB1 RPOR1 = (RPOR1 & 0xFF00) | 0x0014; //Assign PWM OC3 - RP2 / PORTB2 RPOR1 = (RPOR1 & 0x00FF) | 0x1500; //Assign PWM OC4 - RP3 / PORTB3 #endif //Explorer 16 Remappable PWM Functionality #ifdef MX_PWM_PORT_E16ALLOC //configure remapping RPOR4 = (RPOR4 & 0x00FF) | 0x1200; //Assign PWM OC1 - RP9 / PORTB9 RPOR6 = (RPOR6 & 0xFF00) | 0x0013; //Assign PWM OC2 - RP12 / PORTB12 #endif /*InitialisationCode_End*/ /*InterruptCode_Start*/ /*InterruptCode_End*/ /******************************************************************** * FUNCTIONS ********************************************************************/ void Enable(char nIdx) { /*Macro_Enable_Start*/ //error checking #ifndef MX_PWM #error This chip does not have PWM capability #else #ifndef MX_PWM_CNT #error FCD file error (no MX_PWM_CNT) #endif #if (MX_PWM_CNT < 1) #error FCD file error (MX_PWM_CNT < 1) #endif #if (MX_PWM_CNT >= 2) #ifndef MX_PWM_2 #error FCD file error (no MX_PWM_2) #endif #endif #endif #ifdef MX_PWM PR2 = %a; T2CON = %b; #if (MX_PWM_CNT >= 1) if (nIdx == 1) { OC1RS = 0; OC1R = 0; OC1CON = 0x0006; } #endif #if (MX_PWM_CNT >= 2) if (nIdx == 2) { OC2RS = 0; OC2R = 0; OC2CON = 0x0006; } #endif #if (MX_PWM_CNT >= 3) if (nIdx == 3) { OC3RS = 0; OC3R = 0; OC3CON = 0x0006; } #endif #if (MX_PWM_CNT >= 4) if (nIdx == 4) { OC4RS = 0; OC4R = 0; OC4CON = 0x0006; } #endif #endif /*Macro_Enable_End*/ } void Disable(char nIdx) { /*Macro_Disable_Start*/ #ifdef MX_PWM #if (MX_PWM_CNT >= 1) if (nIdx == 1) { OC1CON = 0x00; } #endif #if (MX_PWM_CNT >= 2) if (nIdx == 2) { OC2CON = 0x00; } #endif #if (MX_PWM_CNT >= 3) if (nIdx == 3) { OC3CON = 0x00; } #endif #if (MX_PWM_CNT >= 4) if (nIdx == 4) { OC4CON = 0x00; } #endif #endif /*Macro_Disable_End*/ } void SetDutyCycle(char nIdx, char nDuty) { /*Macro_SetDutyCycle_Start*/ #ifdef MX_PWM #if (MX_PWM_CNT >= 1) if (nIdx == 1) { OC1RS = nDuty; } #endif #if (MX_PWM_CNT >= 2) if (nIdx == 2) { OC2RS = nDuty; } #endif #if (MX_PWM_CNT >= 3) if (nIdx == 3) { OC3RS = nDuty; } #endif #if (MX_PWM_CNT >= 4) if (nIdx == 4) { OC4RS = nDuty; } #endif #endif /*Macro_SetDutyCycle_End*/ } void ChangePeriod(char nPeriodVal, char nPrescalerVal) { /*Macro_ChangePeriod_Start*/ #ifdef MX_PWM PR2 = nPeriodVal; switch (nPrescalerVal) { case 0: T2CON = 0x8000; break; case 1: T2CON = 0x8010; break; case 2: T2CON = 0x8020; break; case 3: T2CON = 0x8030; break; } #endif /*Macro_ChangePeriod_End*/ } void SetDutyCycle10bit(char nIdx, short nDuty) { /*Macro_SetDutyCycle10bit_Start*/ #ifdef MX_PWM #if (MX_PWM_CNT >= 1) if (nIdx == 1) { OC1RS = (nDuty >> 2); } #endif #if (MX_PWM_CNT >= 2) if (nIdx == 2) { OC2RS = (nDuty >> 2); } #endif #if (MX_PWM_CNT >= 3) if (nIdx == 3) { OC3RS = (nDuty >> 2); } #endif #if (MX_PWM_CNT >= 4) if (nIdx == 4) { OC4RS = (nDuty >> 2); } #endif #endif /*Macro_SetDutyCycle10bit_End*/ }