66 lines
2 KiB
C
66 lines
2 KiB
C
// Copyright (C) 2014 Marcus Priesch, All rights reserved
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// In Prandnern 31, A--2122 Riedenthal, Austria. office@priesch.co.at
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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., 675 Mass Ave, Cambridge, MA 02139, USA.
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// ****************************************************************************
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//
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//++
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// Name
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// t4-servo-config
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//
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// Purpose
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// configuration for t4-servo
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//
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// Revision Dates
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// 10-Mar-2014 (MPR) Creation
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// ««revision-date»»···
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//--
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#include <avr/io.h>
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#ifndef __T4_SERVO_CONFIG_H__
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#define __T4_SERVO_CONFIG_H__ 1
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// timing: (X:pwm, _:zero)
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//
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// X_______________XXXXXXXXXXXXX_______________XXXXXXXXXXXXX
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//
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// |<------------->|<--------->|<------------->|<--------->| ...
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// SERVO_OFFSET SERVO_MAX SERVO_OFFSET SERVO_MAX
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//
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// within SERVO_MAX you get the PWM set with servo_set (id, pwm)
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// if you set SERVO_OFFSET to zero, you get a pwm from 0 to 100% duty cycle
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//
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// the period of the smallest tick is derived from the timer4 prescaler
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// plus the ISR overhead. however, the latter one should be constant
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// regardless of the pwm signal generated
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#define SERVO_OFFSET 0
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#define SERVO_MIN 0
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#define SERVO_MAX 64
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// Counter value for timer 4 without any prescaler for a single tick
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#define PWMFREQ 200
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#define T4_VALUE F_CPU/SERVO_MAX/PWMFREQ
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#define SERVO_COUNT 8
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#define T4_SENSOR_NAME "Dual RGBW Led"
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#endif
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