/********************************************************************* * Flowcode PWM Component Code * * File: PIC_PWM.c * * (c) 2009 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 * ********************************************************************/ /********************************************************************* 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= [PinDirection] 1= 2= [PinDesiredBit] 1= 2= [BitMandatory] 1= 2= ********************************************************************** [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*/ /*InitialisationCode_End*/ /*InterruptCode_Start*/ /*InterruptCode_End*/ /******************************************************************** * FUNCTIONS ********************************************************************/ void Enable(char nIdx) { /*Macro_Enable_Start*/ //error checking #ifndef MX_PWM #warning "This chip does not have PWM capability" #else #ifndef MX_PWM_CNT #pragma error FCD file error (no MX_PWM_CNT) #endif #if (MX_PWM_CNT < 1) #pragma error FCD file error (MX_PWM_CNT < 1) #endif #if (MX_PWM_CNT > 2) #pragma error FCD file error (MX_PWM_CNT > 2) #endif #ifndef MX_PWM_TRIS1 #pragma error FCD file error (no MX_PWM_TRIS1) #endif #ifndef MX_PWM_1 #pragma error FCD file error (no MX_PWM_1) #endif #if (MX_PWM_CNT == 2) #ifndef MX_PWM_TRIS2 #pragma error FCD file error (no MX_PWM_TRIS2) #endif #ifndef MX_PWM_2 #pragma error FCD file error (no MX_PWM_2) #endif #endif #if (%d == 1) #ifndef MX_PWM_TRIS1a #pragma error PWM component error (using alternative, but no MX_PWM_TRIS1a) #define MX_PWM_ALT_ERROR #endif #ifndef MX_PWM_1a #pragma error PWM component error (using alternative, but no MX_PWM_1a) #define MX_PWM_ALT_ERROR #endif #endif #if (%d == 2) #ifndef MX_PWM_TRIS2a #pragma error PWM component error (using alternative, but no MX_PWM_TRIS2a) #define MX_PWM_ALT_ERROR #endif #ifndef MX_PWM_2a #pragma error PWM component error (using alternative, but no MX_PWM_2a) #define MX_PWM_ALT_ERROR #endif #endif #endif #ifdef MX_PWM pr2 = %a; t2con = %b; #if (MX_PWM_CNT >= 1) if (nIdx == 1) { ccp1con = 0x0C; #if (%d == 1) #ifndef MX_PWM_ALT_ERROR clear_bit(MX_PWM_TRIS1a, MX_PWM_1a); #endif #else clear_bit(MX_PWM_TRIS1, MX_PWM_1); #endif } #endif #if (MX_PWM_CNT >= 2) if (nIdx == 2) { ccp2con = 0x0C; #if (%d == 2) #ifndef MX_PWM_ALT_ERROR clear_bit(MX_PWM_TRIS2a, MX_PWM_2a); #endif #else clear_bit(MX_PWM_TRIS2, MX_PWM_2); #endif } #endif #endif #ifdef MX_PWM_ALT_ERROR #undef MX_PWM_ALT_ERROR #endif /*Macro_Enable_End*/ } void Disable(char nIdx) { /*Macro_Disable_Start*/ //error checking #ifndef MX_PWM #warning "This chip does not have PWM capability" #endif #ifdef MX_PWM #if (MX_PWM_CNT >= 1) if (nIdx == 1) { ccp1con = 0x00; } #endif #if (MX_PWM_CNT >= 2) if (nIdx == 2) { ccp2con = 0x00; } #endif #endif /*Macro_Disable_End*/ } void SetDutyCycle(char nIdx, char nDuty) { /*Macro_SetDutyCycle_Start*/ //error checking #ifndef MX_PWM #warning "This chip does not have PWM capability" #endif #ifdef MX_PWM #if (MX_PWM_CNT >= 1) if (nIdx == 1) { ccpr1l = nDuty; } #endif #if (MX_PWM_CNT >= 2) if (nIdx == 2) { ccpr2l = nDuty; } #endif #endif /*Macro_SetDutyCycle_End*/ } void ChangePeriod(char nPeriodVal, char nPrescalerVal) { /*Macro_ChangePeriod_Start*/ //error checking #ifndef MX_PWM #warning "This chip does not have PWM capability" #endif #ifdef MX_PWM pr2 = nPeriodVal; switch (nPrescalerVal) { case 1: t2con = 0x04; break; case 4: t2con = 0x05; break; case 16: t2con = 0x06; break; } #endif /*Macro_ChangePeriod_End*/ } void SetDutyCycle10bit(char nIdx, short nDuty) { /*Macro_SetDutyCycle10bit_Start*/ char nCCPxCONtemp; //error checking #ifndef MX_PWM #warning "This chip does not have PWM capability" #endif #ifdef MX_PWM #if (MX_PWM_CNT >= 1) if (nIdx == 1) { ccpr1l = (nDuty & 0x3FC) >> 2; nDuty = (nDuty & 0x03) << 4; nCCPxCONtemp = (ccp1con & 0xCF) | nDuty; ccp1con = nCCPxCONtemp; } #endif #if (MX_PWM_CNT >= 2) if (nIdx == 2) { ccpr2l = (nDuty & 0x3FC) >> 2; nDuty = (nDuty & 0x03) << 4; nCCPxCONtemp = (ccp2con & 0xCF) | nDuty; ccp2con = nCCPxCONtemp; } #endif #endif /*Macro_SetDutyCycle10bit_End*/ }