555 lines
20 KiB
C
555 lines
20 KiB
C
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//###########################################################################
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//
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// FILE: F2837xD_sdfm_drivers.c
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//
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// TITLE: SDFM Driver functions
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//
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//###########################################################################
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//
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// $Release Date: $
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// $Copyright:
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// Copyright (C) 2013-2022 Texas Instruments Incorporated - http://www.ti.com/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the
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// distribution.
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//
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// Neither the name of Texas Instruments Incorporated nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// $
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//###########################################################################
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//
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// Included Files
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//
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#include "F28x_Project.h"
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#include "F2837xD_struct.h"
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#include "F2837xD_sdfm_drivers.h"
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//
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// Sdfm_configureInputCtrl - This function configures SDFM Input control unit.
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// sdfmNumber - This parameter should be used to
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// select SDFM1 (or) SDFM2
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// filterNumber - This parameter is used to select
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// which filter (FILTER1,FILTER2,
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// FILTER3,FILTER4) needs to be
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// configured.
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// mode - This parameter is used to select
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// one of the modes mentioned above
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//
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// Input control unit can be configured in four different modes:
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// MODE_0 : Modulator clock rate = Modulator data rate
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// MODE_1 : Modulator clock rate = (Modulator data rate / 2)
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// MODE_2 : Manchester encoded data (Modulator clock is encoded into data)
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// MODE_3 : Modulator clock rate = (2 x Modulator data rate)
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//
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void Sdfm_configureInputCtrl(Uint16 sdfmNumber, Uint16 filterNumber,
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Uint16 mode)
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{
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EALLOW;
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switch (filterNumber)
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{
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case FILTER1:
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(*SDFM[sdfmNumber]).SDCTLPARM1.bit.MOD = mode;
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break;
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case FILTER2:
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(*SDFM[sdfmNumber]).SDCTLPARM2.bit.MOD = mode;
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break;
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case FILTER3:
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(*SDFM[sdfmNumber]).SDCTLPARM3.bit.MOD = mode;
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break;
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case FILTER4:
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(*SDFM[sdfmNumber]).SDCTLPARM4.bit.MOD = mode;
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break;
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}
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EDIS;
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}
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//
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// Sdfm_configureComparator - This function configures SDFM Comparator unit.
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// Comparator unit can be configured to monitor
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// input conditions with a fast settling time.
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// This module can be programmed to detect over and
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// under value conditions.
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//
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// sdfmNumber - This parameter should be used to
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// select SDFM1 (or) SDFM2
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// filterNumber - This parameter is used to select
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// which filter (FILTER1,FILTER2,
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// FILTER3,FILTER3)
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// filterType - This parameter is used to select
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// one of the filter type mentioned
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// above (SINC1,SINC2,SINC3,SINCFAST)
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// OSR - This parameter is used to
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// configure oversampling ratio for
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// comparator
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// HLT - This parameter is used to
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// configure to detect over value
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// condition
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// LLT - This parameter is used to
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// configure to detect under value
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// condition
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//
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void Sdfm_configureComparator(Uint16 sdfmNumber, Uint16 filterNumber,
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Uint16 filterType, Uint16 OSR, Uint16 HLT,
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Uint16 LLT)
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{
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EALLOW;
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switch (filterNumber)
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{
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case FILTER1: //Filter 1
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//
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//Configure filter type : Sincfast / Sinc1 / Sinc2 / Sinc3
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//
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(*SDFM[sdfmNumber]).SDCPARM1.bit.CS1_CS0 = filterType;
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//
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//Configure OSR value
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//
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if(OSR<=COMPARATOR_MAX_OSR)
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{
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(*SDFM[sdfmNumber]).SDCPARM1.bit.COSR = OSR;
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}
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else
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{
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(*SDFM[sdfmNumber]).SDCPARM1.bit.COSR = COMPARATOR_MAX_OSR;
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}
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(*SDFM[sdfmNumber]).SDCMPH1.bit.HLT = HLT;
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(*SDFM[sdfmNumber]).SDCMPL1.bit.LLT = LLT;
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break;
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case FILTER2: //Filter 2
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//
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//Configure filter type : Sincfast / Sinc1 / Sinc2 / Sinc3
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//
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(*SDFM[sdfmNumber]).SDCPARM2.bit.CS1_CS0 = filterType;
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//
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//Configure OSR value
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//
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if(OSR<=COMPARATOR_MAX_OSR)
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{
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(*SDFM[sdfmNumber]).SDCPARM2.bit.COSR = OSR;
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}
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else
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{
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(*SDFM[sdfmNumber]).SDCPARM2.bit.COSR = COMPARATOR_MAX_OSR;
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}
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(*SDFM[sdfmNumber]).SDCMPH2.bit.HLT = HLT;
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(*SDFM[sdfmNumber]).SDCMPL2.bit.LLT = LLT;
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break;
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case FILTER3: //Filter 3
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//
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//Configure filter type : Sincfast / Sinc1 / Sinc2 / Sinc3
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//
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(*SDFM[sdfmNumber]).SDCPARM3.bit.CS1_CS0 = filterType;
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//
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//Configure OSR value
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//
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if(OSR<=COMPARATOR_MAX_OSR)
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{
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(*SDFM[sdfmNumber]).SDCPARM3.bit.COSR = OSR;
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}
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else
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{
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(*SDFM[sdfmNumber]).SDCPARM3.bit.COSR = COMPARATOR_MAX_OSR;
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}
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(*SDFM[sdfmNumber]).SDCMPH3.bit.HLT = HLT;
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(*SDFM[sdfmNumber]).SDCMPL3.bit.LLT = LLT;
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break;
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case FILTER4: //Filter 4
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//
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//Configure filter type : Sincfast / Sinc1 / Sinc2 / Sinc3
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//
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(*SDFM[sdfmNumber]).SDCPARM4.bit.CS1_CS0 = filterType;
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//
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//Configure Comparator OSR value
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//
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if(OSR<=COMPARATOR_MAX_OSR)
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{
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(*SDFM[sdfmNumber]).SDCPARM4.bit.COSR = OSR;
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}
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else
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{
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(*SDFM[sdfmNumber]).SDCPARM4.bit.COSR = COMPARATOR_MAX_OSR;
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}
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(*SDFM[sdfmNumber]).SDCMPH4.bit.HLT = HLT;
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(*SDFM[sdfmNumber]).SDCMPL4.bit.LLT = LLT;
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break;
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}
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EDIS;
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}
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//
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// SDFM_configureData_filter - This function configures SDFM Data filter unit
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//
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// SDFM Data filter unit can be configured in any
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// of four different Sinc filter types:
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// sdfmNumber - This parameter should be used to
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// select SDFM1 (or) SDFM2
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// filterNumber - This parameter is used to select
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// which filter(FILTER1,FILTER2,
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// FILTER3,FILTER3) needs to be
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// configured
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// Filter_switch - This parameter is used to
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// enable/disable a filter
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// filterType - This parameter is used to select
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// one of the filter type mentioned
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// above (SINC1 / SINC2 / SINC3 /
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// SINCFAST)
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// OSR - This parameter is used to
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// configure oversampling ratio
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// for Data filter (Upto OSR_256)
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// DR_switch - This parameter selects whether
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// data is represented in 16 (or)
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// 32 bits
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// shift_bits - When user chooses 16 bit
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// representation, this variable
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// allows to right shift by
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// specific number of bits
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//
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void Sdfm_configureData_filter(Uint16 sdfmNumber, Uint16 filterNumber,
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Uint16 Filter_switch, Uint16 filterType,
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Uint16 OSR, Uint16 DR_switch, Uint16 shift_bits)
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{
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EALLOW;
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switch(filterNumber)
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{
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case FILTER1: //Filter 1
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(*SDFM[sdfmNumber]).SDDFPARM1.bit.FEN = Filter_switch;
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(*SDFM[sdfmNumber]).SDDFPARM1.bit.SST = filterType;
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//
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//Configure Sinc filter OSR value
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//
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if(OSR<=DATA_FILTER_MAX_OSR)
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{
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(*SDFM[sdfmNumber]).SDDFPARM1.bit.DOSR = OSR;
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}
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else
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{
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(*SDFM[sdfmNumber]).SDDFPARM1.bit.DOSR = DATA_FILTER_MAX_OSR;
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}
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//
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//Configure Data filter data representation
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//DR_switch - Data Representation (0/1 = 16/32b 2's complement)
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//
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(*SDFM[sdfmNumber]).SDDPARM1.bit.DR = DR_switch;
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if(DR_switch == 0)
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{
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(*SDFM[sdfmNumber]).SDDPARM1.bit.SH = shift_bits;
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}
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break;
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case FILTER2: //Filter 2
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(*SDFM[sdfmNumber]).SDDFPARM2.bit.FEN = Filter_switch;
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(*SDFM[sdfmNumber]).SDDFPARM2.bit.SST = filterType;
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//
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//Configure Sinc filter OSR value
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//
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if(OSR<=DATA_FILTER_MAX_OSR)
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{
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(*SDFM[sdfmNumber]).SDDFPARM2.bit.DOSR = OSR;
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}
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else
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{
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(*SDFM[sdfmNumber]).SDDFPARM2.bit.DOSR = DATA_FILTER_MAX_OSR;
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}
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//
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//Configure Data filter data representation
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// DR_switch - Data Representation (0/1 = 16/32b 2's complement)
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//
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(*SDFM[sdfmNumber]).SDDPARM2.bit.DR = DR_switch;
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if(DR_switch == 0)
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{
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(*SDFM[sdfmNumber]).SDDPARM2.bit.SH = shift_bits;
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}
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break;
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case FILTER3: //Filter 3
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(*SDFM[sdfmNumber]).SDDFPARM3.bit.FEN = Filter_switch;
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(*SDFM[sdfmNumber]).SDDFPARM3.bit.SST = filterType;
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//
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//Configure Sinc filter OSR value
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//
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if(OSR<=DATA_FILTER_MAX_OSR)
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{
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(*SDFM[sdfmNumber]).SDDFPARM3.bit.DOSR = OSR;
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}
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else
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{
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(*SDFM[sdfmNumber]).SDDFPARM3.bit.DOSR = DATA_FILTER_MAX_OSR;
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}
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//
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//Configure Data filter data representation
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// DR_switch - Data Representation (0/1 = 16/32b 2's complement)
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//
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(*SDFM[sdfmNumber]).SDDPARM3.bit.DR = DR_switch;
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if(DR_switch == 0)
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{
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(*SDFM[sdfmNumber]).SDDPARM3.bit.SH = shift_bits;
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}
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break;
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case FILTER4: //Filter 4
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(*SDFM[sdfmNumber]).SDDFPARM4.bit.FEN = Filter_switch;
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(*SDFM[sdfmNumber]).SDDFPARM4.bit.SST = filterType;
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//
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//Configure Sinc filter OSR value
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//
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if(OSR<=DATA_FILTER_MAX_OSR)
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{
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(*SDFM[sdfmNumber]).SDDFPARM4.bit.DOSR = OSR;
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}
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else
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{
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(*SDFM[sdfmNumber]).SDDFPARM4.bit.DOSR = DATA_FILTER_MAX_OSR;
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}
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//
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//Configure Data filter data representation
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// DR_switch - Data Representation (0/1 = 16/32b 2's complement)
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//
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(*SDFM[sdfmNumber]).SDDPARM4.bit.DR = DR_switch;
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if(DR_switch == 0)
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{
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(*SDFM[sdfmNumber]).SDDPARM4.bit.SH = shift_bits;
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}
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break;
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}
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EDIS;
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}
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//
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// Sdfm_configureInterrupt - This function configures SDFM Interrupt unit.
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||
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// SDFM Interrupt unit can be configured to
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// enable/disable different sources of SDFM
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||
|
|
// interrupts which should trigger CPU interrupt.
|
||
|
|
//
|
||
|
|
// sdfmNumber - This parameter should be used to
|
||
|
|
// select SDFM1 (or) SDFM2
|
||
|
|
// filterNumber - This parameter is used to select
|
||
|
|
// which filter(FILTER1,FILTER2,
|
||
|
|
// FILTER3,FILTER3) needs to be
|
||
|
|
// configured
|
||
|
|
// IEH_Switch - This parameter allows over value
|
||
|
|
// condition to trigger CPU interrupt
|
||
|
|
// IEL_Switch - This parameter allows under value
|
||
|
|
// condition to trigger CPU interrupt
|
||
|
|
// MFIE_Switch - This parameter allows modulator
|
||
|
|
// failure to trigger CPU interrupt
|
||
|
|
// AE_Switch - This parameter allows new filter
|
||
|
|
// data acknowledge interrupt signal
|
||
|
|
// to trigger CPU interrupt
|
||
|
|
//
|
||
|
|
void Sdfm_configureInterrupt(Uint16 sdfmNumber, Uint16 filterNumber,
|
||
|
|
Uint16 IEH_Switch, Uint16 IEL_Switch,
|
||
|
|
Uint16 MFIE_Switch, Uint16 AE_Switch)
|
||
|
|
{
|
||
|
|
EALLOW;
|
||
|
|
|
||
|
|
switch(filterNumber)
|
||
|
|
{
|
||
|
|
case FILTER1: //Filter 1
|
||
|
|
(*SDFM[sdfmNumber]).SDCPARM1.bit.IEH = IEH_Switch;
|
||
|
|
(*SDFM[sdfmNumber]).SDCPARM1.bit.IEL = IEL_Switch;
|
||
|
|
(*SDFM[sdfmNumber]).SDCPARM1.bit.MFIE = MFIE_Switch;
|
||
|
|
(*SDFM[sdfmNumber]).SDDFPARM1.bit.AE = AE_Switch;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case FILTER2: //Filter 2
|
||
|
|
(*SDFM[sdfmNumber]).SDCPARM2.bit.IEH = IEH_Switch;
|
||
|
|
(*SDFM[sdfmNumber]).SDCPARM2.bit.IEL = IEL_Switch;
|
||
|
|
(*SDFM[sdfmNumber]).SDCPARM2.bit.MFIE = MFIE_Switch;
|
||
|
|
(*SDFM[sdfmNumber]).SDDFPARM2.bit.AE = AE_Switch;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case FILTER3: //Filter 3
|
||
|
|
(*SDFM[sdfmNumber]).SDCPARM3.bit.IEH = IEH_Switch;
|
||
|
|
(*SDFM[sdfmNumber]).SDCPARM3.bit.IEL = IEL_Switch;
|
||
|
|
(*SDFM[sdfmNumber]).SDCPARM3.bit.MFIE = MFIE_Switch;
|
||
|
|
(*SDFM[sdfmNumber]).SDDFPARM3.bit.AE = AE_Switch;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case FILTER4: //Filter 4
|
||
|
|
(*SDFM[sdfmNumber]).SDCPARM4.bit.IEH = IEH_Switch;
|
||
|
|
(*SDFM[sdfmNumber]).SDCPARM4.bit.IEL = IEL_Switch;
|
||
|
|
(*SDFM[sdfmNumber]).SDCPARM4.bit.MFIE = MFIE_Switch;
|
||
|
|
(*SDFM[sdfmNumber]).SDDFPARM4.bit.AE = AE_Switch;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
EDIS;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// SDFM_configExternalreset - This function configures SDFM module to
|
||
|
|
// enable/disable external filter reset from PWM
|
||
|
|
//
|
||
|
|
// sdfmNumber - This parameter should
|
||
|
|
// be used to select
|
||
|
|
// SDFM1 (or) SDFM2
|
||
|
|
// filter1_Config_ext_reset - This parameter is used
|
||
|
|
// to enable/disable
|
||
|
|
// external PWM reset for
|
||
|
|
// filter1
|
||
|
|
// filter2_Config_ext_reset - This parameter is used
|
||
|
|
// to enable/disable
|
||
|
|
// external PWM reset for
|
||
|
|
// filter2
|
||
|
|
// filter3_Config_ext_reset - This parameter is used
|
||
|
|
// to enable / disable
|
||
|
|
// external PWM reset for
|
||
|
|
// filter3
|
||
|
|
// filter4_Config_ext_reset - This parameter is used
|
||
|
|
// to enable / disable
|
||
|
|
// external PWM reset for
|
||
|
|
// filter4
|
||
|
|
//
|
||
|
|
void Sdfm_configureExternalreset(Uint16 sdfmNumber,
|
||
|
|
Uint16 filter1_Config_ext_reset,
|
||
|
|
Uint16 filter2_Config_ext_reset,
|
||
|
|
Uint16 filter3_Config_ext_reset,
|
||
|
|
Uint16 filter4_Config_ext_reset)
|
||
|
|
{
|
||
|
|
EALLOW;
|
||
|
|
(*SDFM[sdfmNumber]).SDDFPARM1.bit.SDSYNCEN = filter1_Config_ext_reset;
|
||
|
|
(*SDFM[sdfmNumber]).SDDFPARM2.bit.SDSYNCEN = filter2_Config_ext_reset;
|
||
|
|
(*SDFM[sdfmNumber]).SDDFPARM3.bit.SDSYNCEN = filter3_Config_ext_reset;
|
||
|
|
(*SDFM[sdfmNumber]).SDDFPARM4.bit.SDSYNCEN = filter4_Config_ext_reset;
|
||
|
|
EDIS;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// SDFM_enableMFE - This function enables Master filter bit of SDFM module
|
||
|
|
//
|
||
|
|
// sdfmNumber - This parameter should be used to select
|
||
|
|
// SDFM1 (or) SDFM2
|
||
|
|
//
|
||
|
|
void Sdfm_enableMFE(Uint16 sdfmNumber)
|
||
|
|
{
|
||
|
|
EALLOW;
|
||
|
|
(*SDFM[sdfmNumber]).SDMFILEN.bit.MFE = 1; //Master Filter bit is enabled
|
||
|
|
EDIS;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// SDFM_disableMFE - This function disable Master filter bit of SDFM module
|
||
|
|
//
|
||
|
|
// sdfmNumber - This parameter should be used to select
|
||
|
|
// SDFM1 (or) SDFM2
|
||
|
|
//
|
||
|
|
void SDFM_disableMFE(Uint16 sdfmNumber)
|
||
|
|
{
|
||
|
|
EALLOW;
|
||
|
|
(*SDFM[sdfmNumber]).SDMFILEN.bit.MFE = 0; //Master Filter bit is disabled
|
||
|
|
EDIS;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// SDFM_enableMIE - This function enable Master Interrupt bit of SDFM module
|
||
|
|
//
|
||
|
|
// sdfmNumber - This parameter should be used to select
|
||
|
|
// SDFM1 (or) SDFM2
|
||
|
|
//
|
||
|
|
void Sdfm_enableMIE(Uint16 sdfmNumber)
|
||
|
|
{
|
||
|
|
EALLOW;
|
||
|
|
//
|
||
|
|
//Enable MIE (Master Interrupt Enable) bit
|
||
|
|
//
|
||
|
|
(*SDFM[sdfmNumber]).SDCTL.bit.MIE = 1;
|
||
|
|
EDIS;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Sdfm_disableMIE - This function disable Master Interrupt bit of SDFM module
|
||
|
|
//
|
||
|
|
// sdfmNumber - This parameter should be used to select
|
||
|
|
// SDFM1 (or) SDFM2
|
||
|
|
//
|
||
|
|
void Sdfm_disableMIE(Uint16 sdfmNumber)
|
||
|
|
{
|
||
|
|
|
||
|
|
EALLOW;
|
||
|
|
//
|
||
|
|
//Disable MIE (Master Interrupt Enable) bit
|
||
|
|
//
|
||
|
|
(*SDFM[sdfmNumber]).SDCTL.bit.MIE = 0;
|
||
|
|
EDIS;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Sdfm_readFlagRegister - This function helps user read SDFM flag
|
||
|
|
// register (SDIFLG)
|
||
|
|
//
|
||
|
|
Uint32 Sdfm_readFlagRegister(Uint16 sdfmNumber)
|
||
|
|
{
|
||
|
|
return ((*SDFM[sdfmNumber]).SDIFLG.all);
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Sdfm_clearFlagRegister - This function helps is used to clear
|
||
|
|
// SDIFLG register
|
||
|
|
//
|
||
|
|
void Sdfm_clearFlagRegister(Uint16 sdfmNumber,Uint32 sdfmReadFlagRegister)
|
||
|
|
{
|
||
|
|
(*SDFM[sdfmNumber]).SDIFLGCLR.all = sdfmReadFlagRegister;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// End of file
|
||
|
|
//
|