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Revert "Allman now (#6080)" (#6090)

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This reverts commit 98125f8860.
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Allman-astyler
2019-05-14 00:09:54 +02:00
committed by david gauchard
parent 98125f8860
commit eea9999dc5
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cores/esp8266/sigma_delta.h
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@ -1,45 +1,45 @@
/*
sigma_delta.h - esp8266 sigma-delta source
/*
sigma_delta.h - esp8266 sigma-delta source
Copyright (c) 2014 Ivan Grokhotkov. All rights reserved.
This file is part of the esp8266 core for Arduino environment.
Copyright (c) 2014 Ivan Grokhotkov. All rights reserved.
This file is part of the esp8266 core for Arduino environment.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*******************************************************************************
* Info Sigma delta module
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
This module controls the esp8266 internal sigma delta source
Each pin can be connected to the sigma delta source
The target duty and frequency can be modified via the register GPIO_SIGMA_DELTA
/*******************************************************************************
Info Sigma delta module
THE TARGET FREQUENCY IS DEFINED AS:
This module controls the esp8266 internal sigma delta source
Each pin can be connected to the sigma delta source
The target duty and frequency can be modified via the register GPIO_SIGMA_DELTA
FREQ = 80,000,000/prescaler * target /256 HZ, 0<target<128
FREQ = 80,000,000/prescaler * (256-target) /256 HZ, 128<target<256
target: duty cycle,range 0-255
prescaler: is a clock divider, range 0-255
so the target and prescale will both affect the freq.
CPU_FREQ has no influence on the sigma delta frequency.
THE TARGET FREQUENCY IS DEFINED AS:
FREQ = 80,000,000/prescaler * target /256 HZ, 0<target<128
FREQ = 80,000,000/prescaler * (256-target) /256 HZ, 128<target<256
target: duty cycle,range 0-255
prescaler: is a clock divider, range 0-255
so the target and prescale will both affect the freq.
CPU_FREQ has no influence on the sigma delta frequency.
Usage :
1. sigmaDeltaSetup(0,f) : activate the sigma delta source with frequency f and default duty cycle (0)
2. sigmaDeltaAttachPin(pin), any pin 0..15, TBC if gpio16 supports sigma-delta source
This will set the pin to NORMAL output mode (pinMode(pin,OUTPUT))
3. sigmaDeltaWrite(0,dc) : set the output signal duty cycle, duty cycle = dc/256
Usage :
1. sigmaDeltaSetup(0,f) : activate the sigma delta source with frequency f and default duty cycle (0)
2. sigmaDeltaAttachPin(pin), any pin 0..15, TBC if gpio16 supports sigma-delta source
This will set the pin to NORMAL output mode (pinMode(pin,OUTPUT))
3. sigmaDeltaWrite(0,dc) : set the output signal duty cycle, duty cycle = dc/256
*******************************************************************************/