b20d0ff1fb
Just small pieces at a time to make it easy to see what's happening. Taking definitions currently implemented in both f0/f3 headers and making combined, documented versions in the -v2 header.
87 lines
3.0 KiB
C
87 lines
3.0 KiB
C
/** @defgroup usart_defines USART Defines
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*
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* @brief <b>Defined Constants and Types for the STM32F0xx USART</b>
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*
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* @ingroup STM32F0xx_defines
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*
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* @version 1.0.0
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*
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* @date 2 July 2013
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*
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* LGPL License Terms @ref lgpl_license
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*/
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/*
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* This file is part of the libopencm3 project.
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser 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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*
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* This library 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef LIBOPENCM3_USART_H
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#define LIBOPENCM3_USART_H
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#include <libopencm3/stm32/common/usart_common_all.h>
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#include <libopencm3/stm32/common/usart_common_v2.h>
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/*****************************************************************************/
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/* Module definitions */
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/*****************************************************************************/
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#define USART1 USART1_BASE
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#define USART2 USART2_BASE
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#define USART3 USART3_BASE
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#define USART4 USART4_BASE
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/*****************************************************************************/
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/* Register values */
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/*****************************************************************************/
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/* USART_CR1 Values ---------------------------------------------------------*/
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#define USART_CR1_DEAT_SHIFT 21
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#define USART_CR1_DEAT (0x1F << USART_CR1_DEAT_SHIFT)
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#define USART_CR1_DEAT_VAL(x) ((x) << USART_CR1_DEAT_SHIFT)
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#define USART_CR1_DEDT_SHIFT 16
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#define USART_CR1_DEDT (0x1F << USART_CR1_DEDT_SHIFT)
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#define USART_CR1_DEDT_VAL(x) ((x) << USART_CR1_DEDT_SHIFT)
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/* USART_CR3 Values ---------------------------------------------------------*/
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#define USART_CR3_SCARCNT_SHIFT 17
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#define USART_CR3_SCARCNT (7 << USART_CR3_SCARCNT_SHIFT)
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#define USART_CR3_SCARCNT_DISABLE (0 << USART_CR3_SCARCNT_SHIFT)
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#define USART_CR3_SCARCNT_VAL(x) ((x) << USART_CR3_SCARCNT_SHIFT)
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/* USART_GTPR Values --------------------------------------------------------*/
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#define USART_GTPR_GT_SHIFT 8
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#define USART_GTPR_GT (0xFF << USART_GTPR_GT_SHIFT)
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#define USART_GTPR_GT_VAL(x) ((x) << USART_GTPR_GT_SHIFT)
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#define USART_GTPR_PSC_SHIFT 0
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#define USART_GTPR_PSC (0xFF << USART_GTPR_PSC_SHIFT)
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#define USART_GTPR_PSC_VAL(x) ((x) << USART_GTPR_PSC_SHIFT)
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/*****************************************************************************/
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/* API Functions */
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/*****************************************************************************/
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BEGIN_DECLS
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END_DECLS
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#endif
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