Merge branch 'PWM' into RF

This commit is contained in:
Neluji 2020-11-22 17:13:19 +01:00
commit 67a1107044
7 changed files with 202 additions and 20 deletions

View file

@ -300,12 +300,12 @@
<bEvRecOn>1</bEvRecOn> <bEvRecOn>1</bEvRecOn>
<bSchkAxf>0</bSchkAxf> <bSchkAxf>0</bSchkAxf>
<bTchkAxf>0</bTchkAxf> <bTchkAxf>0</bTchkAxf>
<nTsel>5</nTsel> <nTsel>6</nTsel>
<sDll></sDll> <sDll></sDll>
<sDllPa></sDllPa> <sDllPa></sDllPa>
<sDlgDll></sDlgDll> <sDlgDll></sDlgDll>
<sDlgPa></sDlgPa> <sDlgPa></sDlgPa>
<sIfile></sIfile> <sIfile>..\..\inifiles\Simu_Pulse.ini</sIfile>
<tDll></tDll> <tDll></tDll>
<tDllPa></tDllPa> <tDllPa></tDllPa>
<tDlgDll></tDlgDll> <tDlgDll></tDlgDll>
@ -317,7 +317,7 @@
<SetRegEntry> <SetRegEntry>
<Number>0</Number> <Number>0</Number>
<Key>DLGDARM</Key> <Key>DLGDARM</Key>
<Name>(1010=-1,-1,-1,-1,0)(1007=-1,-1,-1,-1,0)(1008=-1,-1,-1,-1,0)(1009=-1,-1,-1,-1,0)(100=-1,-1,-1,-1,0)(110=-1,-1,-1,-1,0)(111=-1,-1,-1,-1,0)(1011=-1,-1,-1,-1,0)(180=-1,-1,-1,-1,0)(120=98,107,519,534,0)(121=-1,-1,-1,-1,0)(122=674,103,1095,530,0)(123=-1,-1,-1,-1,0)(140=-1,-1,-1,-1,0)(240=-1,-1,-1,-1,0)(190=-1,-1,-1,-1,0)(200=-1,-1,-1,-1,0)(170=-1,-1,-1,-1,0)(130=-1,-1,-1,-1,0)(131=-1,-1,-1,-1,0)(132=-1,-1,-1,-1,0)(133=-1,-1,-1,-1,0)(160=-1,-1,-1,-1,0)(161=-1,-1,-1,-1,0)(162=-1,-1,-1,-1,0)(210=-1,-1,-1,-1,0)(211=-1,-1,-1,-1,0)(220=-1,-1,-1,-1,0)(221=-1,-1,-1,-1,0)(230=-1,-1,-1,-1,0)(234=-1,-1,-1,-1,0)(231=-1,-1,-1,-1,0)(232=-1,-1,-1,-1,0)(233=-1,-1,-1,-1,0)(150=-1,-1,-1,-1,0)(151=-1,-1,-1,-1,0)</Name> <Name>(1010=-1,-1,-1,-1,0)(1007=-1,-1,-1,-1,0)(1008=-1,-1,-1,-1,0)(1009=-1,-1,-1,-1,0)(100=504,37,1150,710,0)(110=60,88,280,548,0)(111=752,104,972,564,0)(1011=-1,-1,-1,-1,0)(180=-1,-1,-1,-1,0)(120=533,85,954,512,0)(121=892,96,1313,523,0)(122=674,103,1095,530,0)(123=-1,-1,-1,-1,0)(140=-1,-1,-1,-1,0)(240=-1,-1,-1,-1,0)(190=-1,-1,-1,-1,0)(200=-1,-1,-1,-1,0)(170=-1,-1,-1,-1,0)(130=709,11,1303,762,0)(131=150,13,744,764,0)(132=599,17,1193,768,0)(133=-1,-1,-1,-1,0)(160=-1,-1,-1,-1,0)(161=-1,-1,-1,-1,0)(162=-1,-1,-1,-1,0)(210=-1,-1,-1,-1,0)(211=-1,-1,-1,-1,0)(220=-1,-1,-1,-1,0)(221=-1,-1,-1,-1,0)(230=-1,-1,-1,-1,0)(234=-1,-1,-1,-1,0)(231=-1,-1,-1,-1,0)(232=-1,-1,-1,-1,0)(233=-1,-1,-1,-1,0)(150=-1,-1,-1,-1,0)(151=-1,-1,-1,-1,0)</Name>
</SetRegEntry> </SetRegEntry>
<SetRegEntry> <SetRegEntry>
<Number>0</Number> <Number>0</Number>
@ -358,6 +358,14 @@
<ItemText>time</ItemText> <ItemText>time</ItemText>
</Ww> </Ww>
</WatchWindow1> </WatchWindow1>
<MemoryWindow1>
<Mm>
<WinNumber>1</WinNumber>
<SubType>0</SubType>
<ItemText>porta</ItemText>
<AccSizeX>0</AccSizeX>
</Mm>
</MemoryWindow1>
<Tracepoint> <Tracepoint>
<THDelay>0</THDelay> <THDelay>0</THDelay>
</Tracepoint> </Tracepoint>
@ -378,7 +386,7 @@
<AscS3>0</AscS3> <AscS3>0</AscS3>
<aSer3>0</aSer3> <aSer3>0</aSer3>
<eProf>0</eProf> <eProf>0</eProf>
<aLa>0</aLa> <aLa>1</aLa>
<aPa1>0</aPa1> <aPa1>0</aPa1>
<AscS4>0</AscS4> <AscS4>0</AscS4>
<aSer4>0</aSer4> <aSer4>0</aSer4>
@ -400,6 +408,18 @@
<pszMrulep></pszMrulep> <pszMrulep></pszMrulep>
<pSingCmdsp></pSingCmdsp> <pSingCmdsp></pSingCmdsp>
<pMultCmdsp></pMultCmdsp> <pMultCmdsp></pMultCmdsp>
<LogicAnalyzers>
<Wi>
<IntNumber>0</IntNumber>
<FirstString>((portb &amp; 0x00000040) &gt;&gt; 6 &amp; 0x40) &gt;&gt; 6</FirstString>
<SecondString>00008000000000000000000000000000E0FFEF400000000000000000000000000000000028706F7274622026203078303030303030343029203E3E2036000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000001000000000000000000E03F0D00000000000000000000000000000000000000440E0008</SecondString>
</Wi>
<Wi>
<IntNumber>1</IntNumber>
<FirstString>((portb &amp; 0x00000080) &gt;&gt; 7 &amp; 0x80) &gt;&gt; 7</FirstString>
<SecondString>00000000000000000000000000000000E0FFEF400000000000000000000000000000000028706F7274622026203078303030303030383029203E3E2037000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000002000000000000000000E03F0D00000000000000000000000000000000000000040E0008</SecondString>
</Wi>
</LogicAnalyzers>
<DebugDescription> <DebugDescription>
<Enable>1</Enable> <Enable>1</Enable>
<EnableFlashSeq>0</EnableFlashSeq> <EnableFlashSeq>0</EnableFlashSeq>
@ -420,7 +440,7 @@
<GroupNumber>1</GroupNumber> <GroupNumber>1</GroupNumber>
<FileNumber>1</FileNumber> <FileNumber>1</FileNumber>
<FileType>1</FileType> <FileType>1</FileType>
<tvExp>1</tvExp> <tvExp>0</tvExp>
<tvExpOptDlg>0</tvExpOptDlg> <tvExpOptDlg>0</tvExpOptDlg>
<bDave2>0</bDave2> <bDave2>0</bDave2>
<PathWithFileName>../Src/main.c</PathWithFileName> <PathWithFileName>../Src/main.c</PathWithFileName>
@ -456,6 +476,18 @@
<RteFlg>0</RteFlg> <RteFlg>0</RteFlg>
<bShared>0</bShared> <bShared>0</bShared>
</File> </File>
<File>
<GroupNumber>3</GroupNumber>
<FileNumber>3</FileNumber>
<FileType>1</FileType>
<tvExp>1</tvExp>
<tvExpOptDlg>0</tvExpOptDlg>
<bDave2>0</bDave2>
<PathWithFileName>..\MyDrivers\MyPWM.c</PathWithFileName>
<FilenameWithoutPath>MyPWM.c</FilenameWithoutPath>
<RteFlg>0</RteFlg>
<bShared>0</bShared>
</File>
</Group> </Group>
<Group> <Group>
@ -466,7 +498,7 @@
<RteFlg>0</RteFlg> <RteFlg>0</RteFlg>
<File> <File>
<GroupNumber>4</GroupNumber> <GroupNumber>4</GroupNumber>
<FileNumber>3</FileNumber> <FileNumber>4</FileNumber>
<FileType>1</FileType> <FileType>1</FileType>
<tvExp>0</tvExp> <tvExp>0</tvExp>
<tvExpOptDlg>0</tvExpOptDlg> <tvExpOptDlg>0</tvExpOptDlg>
@ -478,7 +510,7 @@
</File> </File>
<File> <File>
<GroupNumber>4</GroupNumber> <GroupNumber>4</GroupNumber>
<FileNumber>4</FileNumber> <FileNumber>5</FileNumber>
<FileType>1</FileType> <FileType>1</FileType>
<tvExp>0</tvExp> <tvExp>0</tvExp>
<tvExpOptDlg>0</tvExpOptDlg> <tvExpOptDlg>0</tvExpOptDlg>
@ -490,7 +522,7 @@
</File> </File>
<File> <File>
<GroupNumber>4</GroupNumber> <GroupNumber>4</GroupNumber>
<FileNumber>5</FileNumber> <FileNumber>6</FileNumber>
<FileType>1</FileType> <FileType>1</FileType>
<tvExp>0</tvExp> <tvExp>0</tvExp>
<tvExpOptDlg>0</tvExpOptDlg> <tvExpOptDlg>0</tvExpOptDlg>
@ -502,7 +534,7 @@
</File> </File>
<File> <File>
<GroupNumber>4</GroupNumber> <GroupNumber>4</GroupNumber>
<FileNumber>6</FileNumber> <FileNumber>7</FileNumber>
<FileType>1</FileType> <FileType>1</FileType>
<tvExp>0</tvExp> <tvExp>0</tvExp>
<tvExpOptDlg>0</tvExpOptDlg> <tvExpOptDlg>0</tvExpOptDlg>
@ -514,7 +546,7 @@
</File> </File>
<File> <File>
<GroupNumber>4</GroupNumber> <GroupNumber>4</GroupNumber>
<FileNumber>7</FileNumber> <FileNumber>8</FileNumber>
<FileType>1</FileType> <FileType>1</FileType>
<tvExp>0</tvExp> <tvExp>0</tvExp>
<tvExpOptDlg>0</tvExpOptDlg> <tvExpOptDlg>0</tvExpOptDlg>
@ -534,7 +566,7 @@
<RteFlg>0</RteFlg> <RteFlg>0</RteFlg>
<File> <File>
<GroupNumber>5</GroupNumber> <GroupNumber>5</GroupNumber>
<FileNumber>8</FileNumber> <FileNumber>9</FileNumber>
<FileType>5</FileType> <FileType>5</FileType>
<tvExp>0</tvExp> <tvExp>0</tvExp>
<tvExpOptDlg>0</tvExpOptDlg> <tvExpOptDlg>0</tvExpOptDlg>
@ -554,7 +586,7 @@
<RteFlg>0</RteFlg> <RteFlg>0</RteFlg>
<File> <File>
<GroupNumber>6</GroupNumber> <GroupNumber>6</GroupNumber>
<FileNumber>9</FileNumber> <FileNumber>10</FileNumber>
<FileType>1</FileType> <FileType>1</FileType>
<tvExp>0</tvExp> <tvExp>0</tvExp>
<tvExpOptDlg>0</tvExpOptDlg> <tvExpOptDlg>0</tvExpOptDlg>
@ -574,7 +606,7 @@
<RteFlg>0</RteFlg> <RteFlg>0</RteFlg>
<File> <File>
<GroupNumber>7</GroupNumber> <GroupNumber>7</GroupNumber>
<FileNumber>10</FileNumber> <FileNumber>11</FileNumber>
<FileType>2</FileType> <FileType>2</FileType>
<tvExp>0</tvExp> <tvExp>0</tvExp>
<tvExpOptDlg>0</tvExpOptDlg> <tvExpOptDlg>0</tvExpOptDlg>

View file

@ -400,6 +400,11 @@
<FileType>1</FileType> <FileType>1</FileType>
<FilePath>..\MyDrivers\MyTimer.c</FilePath> <FilePath>..\MyDrivers\MyTimer.c</FilePath>
</File> </File>
<File>
<FileName>MyPWM.c</FileName>
<FileType>1</FileType>
<FilePath>..\MyDrivers\MyPWM.c</FilePath>
</File>
</Files> </Files>
</Group> </Group>
<Group> <Group>
@ -595,11 +600,11 @@
<RunIndependent>0</RunIndependent> <RunIndependent>0</RunIndependent>
<UpdateFlashBeforeDebugging>1</UpdateFlashBeforeDebugging> <UpdateFlashBeforeDebugging>1</UpdateFlashBeforeDebugging>
<Capability>1</Capability> <Capability>1</Capability>
<DriverSelection>4107</DriverSelection> <DriverSelection>4101</DriverSelection>
</Flash1> </Flash1>
<bUseTDR>1</bUseTDR> <bUseTDR>1</bUseTDR>
<Flash2>STLink\ST-LINKIII-KEIL_SWO.dll</Flash2> <Flash2>STLink\ST-LINKIII-KEIL_SWO.dll</Flash2>
<Flash3></Flash3> <Flash3>"" ()</Flash3>
<Flash4></Flash4> <Flash4></Flash4>
<pFcarmOut></pFcarmOut> <pFcarmOut></pFcarmOut>
<pFcarmGrp></pFcarmGrp> <pFcarmGrp></pFcarmGrp>
@ -861,6 +866,11 @@
<FileType>1</FileType> <FileType>1</FileType>
<FilePath>..\MyDrivers\MyTimer.c</FilePath> <FilePath>..\MyDrivers\MyTimer.c</FilePath>
</File> </File>
<File>
<FileName>MyPWM.c</FileName>
<FileType>1</FileType>
<FilePath>..\MyDrivers\MyPWM.c</FilePath>
</File>
</Files> </Files>
</Group> </Group>
<Group> <Group>

65
MyDrivers/MyPWM.c Normal file
View file

@ -0,0 +1,65 @@
#include "MyPWM.h"
#include "stm32f1xx_ll_bus.h" // Pour l'activation des horloges
#include "stm32f1xx_ll_tim.h"
void MyPWM_Conf_Output(TIM_TypeDef * Timer, int channel)
{
LL_TIM_OC_InitTypeDef My_LL_Tim_OC_Init_Struct;
//Configuration du output channel en PWM
LL_TIM_OC_StructInit(&My_LL_Tim_OC_Init_Struct);
//Configure le mode de la PWM : PWM1 = 1 jusqu'à la CompareValue puis 0, PWM2 = l'inverse
My_LL_Tim_OC_Init_Struct.OCMode = LL_TIM_OCMODE_PWM1;
LL_TIM_OC_Init(Timer,channel,&My_LL_Tim_OC_Init_Struct);
//Activation du channel pour le timer considéré
LL_TIM_CC_EnableChannel(Timer, channel);
}
//Configurer obligatoirement les channels 1 et 2 sur IC1 et IC2 ou IC3 et IC4
void MyPWM_Conf_Input(TIM_TypeDef * Timer, int channel1, int channel2)
{
LL_TIM_IC_InitTypeDef My_LL_Tim_IC_Init_Struct;
//Configuration du channel1 (front montant, mappé sur TI1 = valeurs par défaut)
LL_TIM_IC_StructInit(&My_LL_Tim_IC_Init_Struct);
LL_TIM_IC_Init(Timer,channel1,&My_LL_Tim_IC_Init_Struct);
//Configuration du channel2 (front descendant, mappé sur TI1 = valeurs modifiées)
LL_TIM_IC_StructInit(&My_LL_Tim_IC_Init_Struct);
//Détection sur front descendant
My_LL_Tim_IC_Init_Struct.ICPolarity = LL_TIM_IC_POLARITY_FALLING;
//Mappage sur TI1
My_LL_Tim_IC_Init_Struct.ICActiveInput = LL_TIM_ACTIVEINPUT_INDIRECTTI;
LL_TIM_IC_Init(Timer,channel2,&My_LL_Tim_IC_Init_Struct);
//Definition du trigger
LL_TIM_SetTriggerInput(Timer, LL_TIM_TS_TI1FP1);
//Configure le mode esclave en mode RESET
LL_TIM_SetSlaveMode(Timer, LL_TIM_SLAVEMODE_RESET);
//Activation des 2 channels pour le timer considéré
LL_TIM_CC_EnableChannel(Timer, channel1);
LL_TIM_CC_EnableChannel(Timer, channel2);
}
void MyPWM_Set_Impulse_Duration(TIM_TypeDef * Timer, uint32_t CompareValue, int channel)
{
if (channel==LL_TIM_CHANNEL_CH1) LL_TIM_OC_SetCompareCH1(Timer, CompareValue);
else if (channel==LL_TIM_CHANNEL_CH2) LL_TIM_OC_SetCompareCH2(Timer, CompareValue);
else if (channel==LL_TIM_CHANNEL_CH3) LL_TIM_OC_SetCompareCH3(Timer, CompareValue);
else LL_TIM_OC_SetCompareCH4(Timer, CompareValue);
}
int MyPWM_Duty_Cycle_Permilles(TIM_TypeDef * Timer, int channel1, int channel2) {
if(channel1 == LL_TIM_CHANNEL_CH1 && channel2 == LL_TIM_CHANNEL_CH2) {
return LL_TIM_IC_GetCaptureCH2(Timer) / LL_TIM_IC_GetCaptureCH1(Timer) * 1000;
}
else {
return -1;
}
}

16
MyDrivers/MyPWM.h Normal file
View file

@ -0,0 +1,16 @@
#ifndef MYPWM_H
#define MYPWM_H
#include "stm32f1xx_ll_bus.h" // Pour l'activation des horloges
#include "stm32f1xx_ll_tim.h"
void MyPWM_Conf_Output(TIM_TypeDef * Timer, int channel);
void MyPWM_Conf_Input(TIM_TypeDef * Timer, int channel1, int channel2);
void MyPWM_Set_Impulse_Duration(TIM_TypeDef * Timer, uint32_t CompareValue, int channel);
int MyPWM_Duty_Cycle_Permilles(TIM_TypeDef * Timer, int channel1, int channel2);
#endif

View file

@ -32,7 +32,7 @@ void (*Ptr_ItFct_TIM4)(void);
* int Psc : valeur à placer dans PSC * int Psc : valeur à placer dans PSC
* @retval None * @retval None
*/ */
void MyTimer_Conf(TIM_TypeDef * Timer, int Period) void MyTimer_Conf(TIM_TypeDef * Timer, int Arr, int Psc)
{ {
LL_TIM_InitTypeDef My_LL_Tim_Init_Struct; LL_TIM_InitTypeDef My_LL_Tim_Init_Struct;
@ -42,9 +42,6 @@ void MyTimer_Conf(TIM_TypeDef * Timer, int Period)
else if (Timer==TIM3) LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM3); else if (Timer==TIM3) LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM3);
else LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM4); else LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM4);
int Psc = (Period*72*1000000)/256 + 2;
int Arr = (Period*72*1000000)/Psc + 1;
// chargement structure Arr, Psc, Up Count // chargement structure Arr, Psc, Up Count
My_LL_Tim_Init_Struct.Autoreload=Arr; My_LL_Tim_Init_Struct.Autoreload=Arr;
My_LL_Tim_Init_Struct.Prescaler=Psc; My_LL_Tim_Init_Struct.Prescaler=Psc;

View file

@ -18,7 +18,7 @@ Driver pour Timer 1
* int Psc : valeur à placer dans PSC * int Psc : valeur à placer dans PSC
* @retval None * @retval None
*/ */
void MyTimer_Conf(TIM_TypeDef * Timer,int Period); void MyTimer_Conf(TIM_TypeDef * Timer, int Arr, int Psc);
/** /**

View file

@ -19,6 +19,9 @@
#include "stm32f1xx_ll_rcc.h" // utile dans la fonction SystemClock_Config #include "stm32f1xx_ll_rcc.h" // utile dans la fonction SystemClock_Config
#include "stm32f1xx_ll_utils.h" // utile dans la fonction SystemClock_Config #include "stm32f1xx_ll_utils.h" // utile dans la fonction SystemClock_Config
#include "stm32f1xx_ll_system.h" // utile dans la fonction SystemClock_Config #include "stm32f1xx_ll_system.h" // utile dans la fonction SystemClock_Config
#include "stm32f1xx_ll_gpio.h"
#include "MyTimer.h"
#include "MyPWM.h"
void SystemClock_Config(void); void SystemClock_Config(void);
@ -35,10 +38,69 @@ int main(void)
{ {
/* Configure the system clock to 72 MHz */ /* Configure the system clock to 72 MHz */
SystemClock_Config(); SystemClock_Config();
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOB);
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA);
LL_GPIO_InitTypeDef My_GPIO_Init_Struct;
/*===Test Output===*/
// TIM_TypeDef *Timer1 = TIM3;
// int Channel1 = LL_TIM_CHANNEL_CH2;
// TIM_TypeDef *Timer2 = TIM4;
// int Channel2 = LL_TIM_CHANNEL_CH4;
//
// MyTimer_Conf(Timer1,0xFFFE, 0x72);
// MyTimer_Conf(Timer2,0xFFFE, 0x72);
//
// MyPWM_Conf_Output(Timer1, Channel1);
// MyPWM_Conf_Output(Timer2, Channel2);
//
// MyPWM_Set_Impulse_Duration(Timer1, 25, Channel1);
// MyPWM_Set_Impulse_Duration(Timer2, 75, Channel2);
//
// My_GPIO_Init_Struct.Pin = LL_GPIO_PIN_7;
// My_GPIO_Init_Struct.Mode = LL_GPIO_MODE_ALTERNATE;
// My_GPIO_Init_Struct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
// My_GPIO_Init_Struct.Speed = LL_GPIO_MODE_OUTPUT_2MHz;
// My_GPIO_Init_Struct.Pull = LL_GPIO_PULL_DOWN;
// LL_GPIO_Init(GPIOA, &My_GPIO_Init_Struct);
//
// My_GPIO_Init_Struct.Pin = LL_GPIO_PIN_9;
// My_GPIO_Init_Struct.Mode = LL_GPIO_MODE_ALTERNATE;
// My_GPIO_Init_Struct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
// My_GPIO_Init_Struct.Speed = LL_GPIO_MODE_OUTPUT_2MHz;
// My_GPIO_Init_Struct.Pull = LL_GPIO_PULL_DOWN;
// LL_GPIO_Init(GPIOB, &My_GPIO_Init_Struct);
//
// MyTimer_Start(Timer1);
// MyTimer_Start(Timer2);
/*===Test Input===*/
TIM_TypeDef *Timer = TIM4;
int channel1 = LL_TIM_CHANNEL_CH1;
int channel2 = LL_TIM_CHANNEL_CH2;
My_GPIO_Init_Struct.Pin = LL_GPIO_PIN_6;
My_GPIO_Init_Struct.Mode = LL_GPIO_MODE_FLOATING;
My_GPIO_Init_Struct.Pull = LL_GPIO_PULL_DOWN;
LL_GPIO_Init(GPIOB, &My_GPIO_Init_Struct);
My_GPIO_Init_Struct.Pin = LL_GPIO_PIN_7;
LL_GPIO_Init(GPIOB, &My_GPIO_Init_Struct);
MyTimer_Conf(Timer,0xFFAD,0x15);
MyPWM_Conf_Input(Timer, channel1, channel2);
int duty_cycle = 0;
/* Infinite loop */ /* Infinite loop */
while (1) while (1)
{ {
duty_cycle = MyPWM_Duty_Cycle_Permilles(Timer, channel1, channel2);
} }
} }