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43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
/*
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* noicegen.h
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*
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* Copyright 2014 Edward V. Emelianoff <eddy@sao.ru>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#pragma once
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#ifndef __NOICEGEN_H__
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#define __NOICEGEN_H__
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#include "stm8l.h"
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#include "main.h"
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#define TIM_EN (TIM_CR1_APRE | TIM_CR1_URS | TIM_CR1_CEN)
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void configure_timers();
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// change period (in us)
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#define change_period(F) do{TIM2_ARRH = F >> 8; TIM2_ARRL = F & 0xff;}while(0)
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#define change_CCR(C) do{TIM1_CCR1H = 0; TIM1_CCR1L = C;}while(0)
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// change CCR value. U = Vcc *
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#define play_snd() do{boom_start = Global_time; \
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TIM1_CR1 = TIM_EN; TIM2_CR1 = TIM_EN;}while(0)
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#define stop_snd() do{TIM1_CR1 |= TIM_CR1_OPM; TIM2_CR1 = 0;}while(0)
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#endif // __NOICEGEN_H__
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