47 lines
2.1 KiB
C
47 lines
2.1 KiB
C
// PWM Driver - LPC176x
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//
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// Copyright 2017 Brett Fleming
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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#include <stdint.h>
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typedef struct _PWM_Channel_Config {
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volatile uint32_t* MRn; //LPC_PWM1->MR1 through MR6
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uint32_t PCR_Enable_Mask;
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uint32_t LER_Enable_Mask;
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//PWM Output Mapping PWM1 PWM2 PWM3 PWM4 PWM5 PWM6
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uint32_t PINSEL3_Enable_Mask; //For PWM support on (P1.18, P1.20, P1.21, P1.23, P1.24, P1.26)
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uint32_t PINSEL4_Enable_Mask; //For PWM support on (P2.0, P2.1, P2.2, P2.3, P2.4, P2.6)
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} const PWM_Channel_Config;
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extern PWM_Channel_Config PWM1_CH1;
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extern PWM_Channel_Config PWM1_CH2;
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extern PWM_Channel_Config PWM1_CH3;
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extern PWM_Channel_Config PWM1_CH4;
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extern PWM_Channel_Config PWM1_CH5;
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extern PWM_Channel_Config PWM1_CH6;
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void pwm_init(PWM_Channel_Config* channel, bool primaryPin, bool secondaryPin, uint32_t period, uint32_t width);
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void pwm_set_period(uint32_t period);
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void pwm_set_width(PWM_Channel_Config* channel, uint32_t width);
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void pwm_enable(PWM_Channel_Config* channel);
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void pwm_disable(PWM_Channel_Config* channel);
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