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Diffstat (limited to 'libopencm3/lib/stm32/f1/timer.c')
| -rw-r--r-- | libopencm3/lib/stm32/f1/timer.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/libopencm3/lib/stm32/f1/timer.c b/libopencm3/lib/stm32/f1/timer.c new file mode 100644 index 0000000..fd46742 --- /dev/null +++ b/libopencm3/lib/stm32/f1/timer.c @@ -0,0 +1,57 @@ +/* This file is used for documentation purposes. It does not need +to be compiled. All source code is in the common area. +If there is any device specific code required it can be included here, +in which case this file must be added to the compile list. */ + +/** @defgroup timer_file Timers + +@ingroup STM32F1xx + +@brief <b>libopencm3 STM32F1xx Timers</b> + +@version 1.0.0 + +@date 18 August 2012 + +*/ + +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Edward Cheeseman <evbuilder@users.sourceforge.org> + * Copyright (C) 2011 Stephen Caudle <scaudle@doceme.com> + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <libopencm3/stm32/timer.h> + +/*---------------------------------------------------------------------------*/ +/** @brief Set Input Polarity + +@param[in] timer_peripheral Unsigned int32. Timer register address base +@param[in] ic ::tim_ic_id. Input Capture channel designator. +@param[in] pol ::tim_ic_pol. Input Capture polarity. +*/ + +void timer_ic_set_polarity(uint32_t timer_peripheral, enum tim_ic_id ic, + enum tim_ic_pol pol) +{ + if (pol) { + TIM_CCER(timer_peripheral) |= (0x2 << (ic * 4)); + } else { + TIM_CCER(timer_peripheral) &= ~(0x2 << (ic * 4)); + } +} + |