74 lines
2.8 KiB
C
74 lines
2.8 KiB
C
/*
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Copyright 2017 fishpepper <AT> gmail.com
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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 3 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http:// www.gnu.org/licenses/>.
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author: fishpepper <AT> gmail.com
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*/
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#ifndef HAL_SOFT_SERIAL_H_
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#define HAL_SOFT_SERIAL_H_
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#include "config.h"
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#include "soft_serial.h"
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#include "stm32f10x_gpio.h"
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// at 9600 baud a bit duration is 1/9600s = 104.166667us
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// the counter counts in 1/24th of us -> 104.1667us * 24 =
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#define HAL_SOFTSERIAL_BIT_DURATION_TICKS 2500
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void hal_soft_serial_init(void);
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static void hal_soft_serial_init_rcc(void);
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static void hal_soft_serial_init_gpio(void);
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static void hal_soft_serial_init_timer(void);
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static void hal_soft_serial_init_nvic(void);
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#define HUB_TELEMETRY_PIN_LO_RAW() (GPIO_ReadInputDataBit(SOFT_SERIAL_GPIO, SOFT_SERIAL_PIN) == 0)
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#define HUB_TELEMETRY_PIN_HI_RAW() (!HUB_TELEMETRY_PIN_LO_RAW())
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#ifdef SOFT_SERIAL_PIN_HAS_INVERTER
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#define HUB_TELEMETRY_PIN_LO() HUB_TELEMETRY_PIN_HI_RAW()
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#define HUB_TELEMETRY_PIN_HI() HUB_TELEMETRY_PIN_LO_RAW()
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#else
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#define HUB_TELEMETRY_PIN_LO() HUB_TELEMETRY_PIN_LO_RAW()
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#define HUB_TELEMETRY_PIN_HI() HUB_TELEMETRY_PIN_HI_RAW()
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#endif // SOFT_SERIAL_PIN_HAS_INVERTER
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#define HAL_SOFT_SERIAL_IC_ISR_DISABLE() {\
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TIM_ITConfig(SOFT_SERIAL_TIMER, SOFT_SERIAL_TIMER_IT_IC, DISABLE); }
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#define HAL_SOFT_SERIAL_IC_ISR_ENABLE() {\
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TIM_ITConfig(SOFT_SERIAL_TIMER, SOFT_SERIAL_TIMER_IT_IC, ENABLE); }
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#define HAL_SOFT_SERIAL_IC_ISR_FLAG_SET() \
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(TIM_GetITStatus(SOFT_SERIAL_TIMER, SOFT_SERIAL_TIMER_IT_IC) != RESET)
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#define HAL_SOFT_SERIAL_IC_ISR_FLAG_CLEAR() {\
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TIM_ClearITPendingBit(SOFT_SERIAL_TIMER, SOFT_SERIAL_TIMER_IT_IC); }
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#define HAL_SOFT_SERIAL_UP_ISR_DISABLE() {\
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TIM_ITConfig(SOFT_SERIAL_TIMER, SOFT_SERIAL_TIMER_IT_UP, DISABLE); }
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#define HAL_SOFT_SERIAL_UP_ISR_ENABLE() {\
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TIM_ITConfig(SOFT_SERIAL_TIMER, SOFT_SERIAL_TIMER_IT_UP, ENABLE); }
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#define HAL_SOFT_SERIAL_UP_ISR_FLAG_SET() \
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(TIM_GetITStatus(SOFT_SERIAL_TIMER, SOFT_SERIAL_TIMER_IT_UP) != RESET)
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#define HAL_SOFT_SERIAL_UP_ISR_FLAG_CLEAR() {\
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TIM_ClearITPendingBit(SOFT_SERIAL_TIMER, SOFT_SERIAL_TIMER_IT_UP); }
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#define HAL_SOFT_SERIAL_UPDATE_TOP_VALUE(x) { SOFT_SERIAL_TIMER->ARR = x; }
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void SOFT_SERIAL_TIMER_IC_IRQHandler(void);
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void SOFT_SERIAL_TIMER_UP_IRQHandler(void);
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#endif // HAL_SOFT_SERIAL_H_
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