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[STM32F0:COMP] Add preliminary support of module

This commit is contained in:
BuFran 2013-07-22 18:00:28 +02:00 committed by Piotr Esden-Tempski
parent 4bb18baa59
commit 9f8dd28a5c
4 changed files with 197 additions and 1 deletions
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25
include/libopencm3/stm32/comparator.h Normal file
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@ -0,0 +1,25 @@
/* This provides unification of code over STM32F subfamilies */
/*
* This file is part of the libopencm3 project.
*
* 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/>.
*/
#if defined(STM32F0)
# include <libopencm3/stm32/f0/comparator.h>
#else
# error "stm32 family not defined."
#endif

110
include/libopencm3/stm32/f0/comparator.h Normal file
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/** @defgroup comp_defines COMP Defines
*
* @brief <b>libopencm3 Defined Constants and Types for the STM32F0xx
* Comparator module</b>
*
* @ingroup STM32F0xx_defines
*
* @version 1.0.0
*
* @date 29 Jun 2013
*
*LGPL License Terms @ref lgpl_license
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2013 Frantisek Burian <BuFran@seznam.cz>
*
* 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/>.
*/
#ifndef LIBOPENCM3_COMP_H
#define LIBOPENCM3_COMP_H
#include <libopencm3/cm3/common.h>
#include <libopencm3/stm32/memorymap.h>
/* USART Registers ----------------------------------------------------------*/
#define COMP1 0
#define COMP2 1
#define COMP_CSR(i) MMIO16(SYSCFG_COMP_BASE + 0x1c + (i)*2)
#define COMP_CSR1 COMP_CSR(COMP1)
#define COMP_CSR2 COMP_CSR(COMP2)
/* Register values ----------------------------------------------------------*/
/* COMP_CSR Values ----------------------------------------------------------*/
#define COMP_CSR_LOCK (1 << 15)
#define COMP_CSR_OUT (1 << 14)
#define COMP_CSR_HYST_SHIFT 12
#define COMP_CSR_HYST (3 << COMP_CSR_HYST_SHIFT)
#define COMP_CSR_HYST_NO (0 << COMP_CSR_HYST_SHIFT)
#define COMP_CSR_HYST_LOW (1 << COMP_CSR_HYST_SHIFT)
#define COMP_CSR_HYST_MED (2 << COMP_CSR_HYST_SHIFT)
#define COMP_CSR_HYST_HIGH (3 << COMP_CSR_HYST_SHIFT)
#define COMP_CSR_POL (1 << 11)
#define COMP_CSR_OUTSEL_SHIFT 8
#define COMP_CSR_OUTSEL (7 << COMP_CSR_OUTSEL_SHIFT)
#define COMP_CSR_OUTSEL_NONE (0 << COMP_CSR_OUTSEL_SHIFT)
#define COMP_CSR_OUTSEL_TIM1_BRK (1 << COMP_CSR_OUTSEL_SHIFT)
#define COMP_CSR_OUTSEL_TIM1_IC1 (2 << COMP_CSR_OUTSEL_SHIFT)
#define COMP_CSR_OUTSEL_TIM1_OCRCLR (3 << COMP_CSR_OUTSEL_SHIFT)
#define COMP_CSR_OUTSEL_TIM2_IC4 (4 << COMP_CSR_OUTSEL_SHIFT)
#define COMP_CSR_OUTSEL_TIM2_OCRCLR (5 << COMP_CSR_OUTSEL_SHIFT)
#define COMP_CSR_OUTSEL_TIM3_IC1 (6 << COMP_CSR_OUTSEL_SHIFT)
#define COMP_CSR_OUTSEL_TIM3_OCRCLR (7 << COMP_CSR_OUTSEL_SHIFT)
#define COMP_CSR_WINDWEN (1 << 23)
#define COMP_CSR_INSEL_SHIFT 4
#define COMP_CSR_INSEL (7 << COMP_CSR_INSEL_SHIFT)
#define COMP_CSR_INSEL_1_4_VREFINT (0 << COMP_CSR_INSEL_SHIFT)
#define COMP_CSR_INSEL_2_4_VREFINT (1 << COMP_CSR_INSEL_SHIFT)
#define COMP_CSR_INSEL_3_4_VREFINT (2 << COMP_CSR_INSEL_SHIFT)
#define COMP_CSR_INSEL_4_4_VREFINT (3 << COMP_CSR_INSEL_SHIFT)
#define COMP_CSR_INSEL_VREFINT (3 << COMP_CSR_INSEL_SHIFT)
#define COMP_CSR_INSEL_INM4 (4 << COMP_CSR_INSEL_SHIFT)
#define COMP_CSR_INSEL_INM5 (5 << COMP_CSR_INSEL_SHIFT)
#define COMP_CSR_INSEL_INM6 (6 << COMP_CSR_INSEL_SHIFT)
#define COMP_CSR_SPEED_SHIFT 2
#define COMP_CSR_SPEED (3 << COMP_CSR_SPEED_SHIFT)
#define COMP_CSR_SPEED_HIGH (0 << COMP_CSR_SPEED_SHIFT)
#define COMP_CSR_SPEED_MED (1 << COMP_CSR_SPEED_SHIFT)
#define COMP_CSR_SPEED_LOW (2 << COMP_CSR_SPEED_SHIFT)
#define COMP_CSR_SPEED_VERYLOW (3 << COMP_CSR_SPEED_SHIFT)
#define COMP_CSR_SW1 (1 << 1)
#define COMP_CSR_EN (1 << 0)
/* API values ---------------------------------------------------------------*/
BEGIN_DECLS
void comp_enable(uint8_t id);
void comp_disable(uint8_t id);
void comp_select_input(uint8_t id, uint32_t input);
void comp_select_output(uint8_t id, uint32_t output);
void comp_select_hyst(uint8_t id, uint32_t hyst);
void comp_select_speed(uint8_t id, uint32_t speed);
END_DECLS
#endif

2
lib/stm32/f0/Makefile
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@ -33,7 +33,7 @@ CFLAGS = -Os -g \
ARFLAGS = rcs
OBJS = flash.o rcc.o usart.o dma.o rtc.o
OBJS = flash.o rcc.o usart.o dma.o rtc.o comparator.o
OBJS += gpio_common_all.o gpio_common_f0234.o crc_common_all.o \
pwr_common_all.o iwdg_common_all.o rtc_common_l1f024.o \

61
lib/stm32/f0/comparator.c Normal file
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/** @defgroup comp_file COMP
*
* @ingroup STM32F0xx
*
* @brief <b>libopencm3 STM32F0xx COMP</b>
*
* @version 1.0.0
*
* @date 10 July 2013
*
* LGPL License Terms @ref lgpl_license
*/
/*
* This file is part of the libopencm3 project.
*
* 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/comparator.h>
void comp_enable(uint8_t id)
{
COMP_CSR(id) |= COMP_CSR_EN;
}
void comp_disable(uint8_t id)
{
COMP_CSR(id) &= ~COMP_CSR_EN;
}
void comp_select_input(uint8_t id, uint32_t input)
{
COMP_CSR(id) = (COMP_CSR(id) & ~COMP_CSR_INSEL) | input;
}
void comp_select_output(uint8_t id, uint32_t output)
{
COMP_CSR(id) = (COMP_CSR(id) & ~COMP_CSR_OUTSEL) | output;
}
void comp_select_hyst(uint8_t id, uint32_t hyst)
{
COMP_CSR(id) = (COMP_CSR(id) & ~COMP_CSR_HYST) | hyst;
}
void comp_select_speed(uint8_t id, uint32_t speed)
{
COMP_CSR(id) = (COMP_CSR(id) & ~COMP_CSR_SPEED) | speed;
}