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|
//###########################################################################
//
// FILE: F2837xD_sdfm_drivers.c
//
// TITLE: SDFM Driver functions
//
//###########################################################################
// $TI Release: F2837xD Support Library v3.05.00.00 $
// $Release Date: Tue Jun 26 03:15:23 CDT 2018 $
// $Copyright:
// Copyright (C) 2013-2018 Texas Instruments Incorporated - http://www.ti.com/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the
// distribution.
//
// Neither the name of Texas Instruments Incorporated nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// $
//###########################################################################
//
// Included Files
//
#include "F28x_Project.h"
#include "F2837xD_struct.h"
#include "F2837xD_sdfm_drivers.h"
//
// Sdfm_configureInputCtrl - This function configures SDFM Input control unit.
// sdfmNumber - This parameter should be used to
// select SDFM1 (or) SDFM2
// filterNumber - This parameter is used to select
// which filter (FILTER1,FILTER2,
// FILTER3,FILTER4) needs to be
// configured.
// mode - This parameter is used to select
// one of the modes mentioned above
//
// Input control unit can be configured in four different modes:
// MODE_0 : Modulator clock rate = Modulator data rate
// MODE_1 : Modulator clock rate = (Modulator data rate / 2)
// MODE_2 : Manchester encoded data (Modulator clock is encoded into data)
// MODE_3 : Modulator clock rate = (2 x Modulator data rate)
//
void Sdfm_configureInputCtrl(Uint16 sdfmNumber, Uint16 filterNumber,
Uint16 mode)
{
EALLOW;
switch (filterNumber)
{
case FILTER1:
(*SDFM[sdfmNumber]).SDCTLPARM1.bit.MOD = mode;
break;
case FILTER2:
(*SDFM[sdfmNumber]).SDCTLPARM2.bit.MOD = mode;
break;
case FILTER3:
(*SDFM[sdfmNumber]).SDCTLPARM3.bit.MOD = mode;
break;
case FILTER4:
(*SDFM[sdfmNumber]).SDCTLPARM4.bit.MOD = mode;
break;
}
EDIS;
}
//
// Sdfm_configureComparator - This function configures SDFM Comparator unit.
// Comparator unit can be configured to monitor
// input conditions with a fast settling time.
// This module can be programmed to detect over and
// under value conditions.
//
// sdfmNumber - This parameter should be used to
// select SDFM1 (or) SDFM2
// filterNumber - This parameter is used to select
// which filter (FILTER1,FILTER2,
// FILTER3,FILTER3)
// filterType - This parameter is used to select
// one of the filter type mentioned
// above (SINC1,SINC2,SINC3,SINCFAST)
// OSR - This parameter is used to
// configure oversampling ratio for
// comparator
// HLT - This parameter is used to
// configure to detect over value
// condition
// LLT - This parameter is used to
// configure to detect under value
// condition
//
void Sdfm_configureComparator(Uint16 sdfmNumber, Uint16 filterNumber,
Uint16 filterType, Uint16 OSR, Uint16 HLT,
Uint16 LLT)
{
EALLOW;
switch (filterNumber)
{
case FILTER1: //Filter 1
//
//Configure filter type : Sincfast / Sinc1 / Sinc2 / Sinc3
//
(*SDFM[sdfmNumber]).SDCPARM1.bit.CS1_CS0 = filterType;
//
//Configure OSR value
//
if(OSR<=COMPARATOR_MAX_OSR)
{
(*SDFM[sdfmNumber]).SDCPARM1.bit.COSR = OSR;
}
else
{
(*SDFM[sdfmNumber]).SDCPARM1.bit.COSR = COMPARATOR_MAX_OSR;
}
(*SDFM[sdfmNumber]).SDCMPH1.bit.HLT = HLT;
(*SDFM[sdfmNumber]).SDCMPL1.bit.LLT = LLT;
break;
case FILTER2: //Filter 2
//
//Configure filter type : Sincfast / Sinc1 / Sinc2 / Sinc3
//
(*SDFM[sdfmNumber]).SDCPARM2.bit.CS1_CS0 = filterType;
//
//Configure OSR value
//
if(OSR<=COMPARATOR_MAX_OSR)
{
(*SDFM[sdfmNumber]).SDCPARM2.bit.COSR = OSR;
}
else
{
(*SDFM[sdfmNumber]).SDCPARM2.bit.COSR = COMPARATOR_MAX_OSR;
}
(*SDFM[sdfmNumber]).SDCMPH2.bit.HLT = HLT;
(*SDFM[sdfmNumber]).SDCMPL2.bit.LLT = LLT;
break;
case FILTER3: //Filter 3
//
//Configure filter type : Sincfast / Sinc1 / Sinc2 / Sinc3
//
(*SDFM[sdfmNumber]).SDCPARM3.bit.CS1_CS0 = filterType;
//
//Configure OSR value
//
if(OSR<=COMPARATOR_MAX_OSR)
{
(*SDFM[sdfmNumber]).SDCPARM3.bit.COSR = OSR;
}
else
{
(*SDFM[sdfmNumber]).SDCPARM3.bit.COSR = COMPARATOR_MAX_OSR;
}
(*SDFM[sdfmNumber]).SDCMPH3.bit.HLT = HLT;
(*SDFM[sdfmNumber]).SDCMPL3.bit.LLT = LLT;
break;
case FILTER4: //Filter 4
//
//Configure filter type : Sincfast / Sinc1 / Sinc2 / Sinc3
//
(*SDFM[sdfmNumber]).SDCPARM4.bit.CS1_CS0 = filterType;
//
//Configure Comparator OSR value
//
if(OSR<=COMPARATOR_MAX_OSR)
{
(*SDFM[sdfmNumber]).SDCPARM4.bit.COSR = OSR;
}
else
{
(*SDFM[sdfmNumber]).SDCPARM4.bit.COSR = COMPARATOR_MAX_OSR;
}
(*SDFM[sdfmNumber]).SDCMPH4.bit.HLT = HLT;
(*SDFM[sdfmNumber]).SDCMPL4.bit.LLT = LLT;
break;
}
EDIS;
}
//
// SDFM_configureData_filter - This function configures SDFM Data filter unit
//
// SDFM Data filter unit can be configured in any
// of four different Sinc filter types:
// 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
// Filter_switch - This parameter is used to
// enable/disable a filter
// filterType - This parameter is used to select
// one of the filter type mentioned
// above (SINC1 / SINC2 / SINC3 /
// SINCFAST)
// OSR - This parameter is used to
// configure oversampling ratio
// for Data filter (Upto OSR_256)
// DR_switch - This parameter selects whether
// data is represented in 16 (or)
// 32 bits
// shift_bits - When user chooses 16 bit
// representation, this variable
// allows to right shift by
// specific number of bits
//
void Sdfm_configureData_filter(Uint16 sdfmNumber, Uint16 filterNumber,
Uint16 Filter_switch, Uint16 filterType,
Uint16 OSR, Uint16 DR_switch, Uint16 shift_bits)
{
EALLOW;
switch(filterNumber)
{
case FILTER1: //Filter 1
(*SDFM[sdfmNumber]).SDDFPARM1.bit.FEN = Filter_switch;
(*SDFM[sdfmNumber]).SDDFPARM1.bit.SST = filterType;
//
//Configure Sinc filter OSR value
//
if(OSR<=DATA_FILTER_MAX_OSR)
{
(*SDFM[sdfmNumber]).SDDFPARM1.bit.DOSR = OSR;
}
else
{
(*SDFM[sdfmNumber]).SDDFPARM1.bit.DOSR = DATA_FILTER_MAX_OSR;
}
//
//Configure Data filter data representation
//DR_switch - Data Representation (0/1 = 16/32b 2's complement)
//
(*SDFM[sdfmNumber]).SDDPARM1.bit.DR = DR_switch;
if(DR_switch == 0)
{
(*SDFM[sdfmNumber]).SDDPARM1.bit.SH = shift_bits;
}
break;
case FILTER2: //Filter 2
(*SDFM[sdfmNumber]).SDDFPARM2.bit.FEN = Filter_switch;
(*SDFM[sdfmNumber]).SDDFPARM2.bit.SST = filterType;
//
//Configure Sinc filter OSR value
//
if(OSR<=DATA_FILTER_MAX_OSR)
{
(*SDFM[sdfmNumber]).SDDFPARM2.bit.DOSR = OSR;
}
else
{
(*SDFM[sdfmNumber]).SDDFPARM2.bit.DOSR = DATA_FILTER_MAX_OSR;
}
//
//Configure Data filter data representation
// DR_switch - Data Representation (0/1 = 16/32b 2's complement)
//
(*SDFM[sdfmNumber]).SDDPARM2.bit.DR = DR_switch;
if(DR_switch == 0)
{
(*SDFM[sdfmNumber]).SDDPARM2.bit.SH = shift_bits;
}
break;
case FILTER3: //Filter 3
(*SDFM[sdfmNumber]).SDDFPARM3.bit.FEN = Filter_switch;
(*SDFM[sdfmNumber]).SDDFPARM3.bit.SST = filterType;
//
//Configure Sinc filter OSR value
//
if(OSR<=DATA_FILTER_MAX_OSR)
{
(*SDFM[sdfmNumber]).SDDFPARM3.bit.DOSR = OSR;
}
else
{
(*SDFM[sdfmNumber]).SDDFPARM3.bit.DOSR = DATA_FILTER_MAX_OSR;
}
//
//Configure Data filter data representation
// DR_switch - Data Representation (0/1 = 16/32b 2's complement)
//
(*SDFM[sdfmNumber]).SDDPARM3.bit.DR = DR_switch;
if(DR_switch == 0)
{
(*SDFM[sdfmNumber]).SDDPARM3.bit.SH = shift_bits;
}
break;
case FILTER4: //Filter 4
(*SDFM[sdfmNumber]).SDDFPARM4.bit.FEN = Filter_switch;
(*SDFM[sdfmNumber]).SDDFPARM4.bit.SST = filterType;
//
//Configure Sinc filter OSR value
//
if(OSR<=DATA_FILTER_MAX_OSR)
{
(*SDFM[sdfmNumber]).SDDFPARM4.bit.DOSR = OSR;
}
else
{
(*SDFM[sdfmNumber]).SDDFPARM4.bit.DOSR = DATA_FILTER_MAX_OSR;
}
//
//Configure Data filter data representation
// DR_switch - Data Representation (0/1 = 16/32b 2's complement)
//
(*SDFM[sdfmNumber]).SDDPARM4.bit.DR = DR_switch;
if(DR_switch == 0)
{
(*SDFM[sdfmNumber]).SDDPARM4.bit.SH = shift_bits;
}
break;
}
EDIS;
}
//
// Sdfm_configureInterrupt - This function configures SDFM Interrupt unit.
// SDFM Interrupt unit can be configured to
// enable/disable different sources of SDFM
// 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
//
|
