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external_oscillator.h
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external_oscillator.h
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/*
external_oscillator.h: Definitions for the External Oscillator related register used by Padauk microcontrollers.
Copyright (C) 2020 serisman <github@serisman.com>
Copyright (C) 2019-2020 freepdk https://free-pdk.github.io
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this library. If not, see <http://www.gnu.org/licenses/>.
As a special exception, if you link this library with other files,
some of which are compiled with SDCC, to produce an executable,
this library does not by itself cause the resulting executable to
be covered by the GNU General Public License. This exception does
not however invalidate any other reasons why the executable file
might be covered by the GNU General Public License.
*/
#ifndef __PDK_DEVICE_PERIPH_EXTERNAL_OSCILLATOR_H__
#define __PDK_DEVICE_PERIPH_EXTERNAL_OSCILLATOR_H__
#if !defined(__PDK_DEVICE_H__)
#error "You must #include "pdk/device.h" instead of "pdk/device/periph/exernal_oscillator.h" by itself."
#endif
// __sfr definitions
__sfr __at(EOSCR_ADDR) _eoscr;
#define EOSCR _eoscr
// EOSC (External Oscillator Setting) register definitions
#define EOSC_BG_LVR_SHUTDOWN_BIT 0
#if defined(__PDK_HAS_EOSC)
#define EOSC_CRYSTAL_SEL_BIT0 5
#define EOSC_ENABLE_BIT 7
#endif
#define EOSC_BG_LVR_SHUTDOWN (1 << EOSC_BG_LVR_SHUTDOWN_BIT)
#if defined(__PDK_HAS_EOSC)
#define EOSC_32KHZ_CRYSTAL (1 << EOSC_CRYSTAL_SEL_BIT0)
#define EOSC_1MHZ_CRYSTAL (2 << EOSC_CRYSTAL_SEL_BIT0)
#define EOSC_4MHZ_CRYSTAL (3 << EOSC_CRYSTAL_SEL_BIT0)
#define EOSC_ENABLE (1 << EOSC_ENABLE_BIT)
#endif
#endif //__PDK_DEVICE_PERIPH_EXTERNAL_OSCILLATOR_H__