121 lines
4.7 KiB
C
121 lines
4.7 KiB
C
/*
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ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* @file USARTv2/stm32_usart.h
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* @brief STM32 USART helpers header.
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*
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* @addtogroup STM32_
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* @{
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*/
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#ifndef STM32_USART_H
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#define STM32_USART_H
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/*===========================================================================*/
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/* Driver constants. */
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/*===========================================================================*/
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/**
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* @name CR2 register additional macros
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* @{
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*/
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#define USART_CR1_DATA7 (USART_CR1_M1)
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#define USART_CR1_DATA8 (0U)
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#define USART_CR1_DATA9 (USART_CR1_M0)
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#define USART_CR1_OVER16 (0)
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/** @} */
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/**
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* @name CR2 register additional macros
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* @{
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*/
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#define USART_CR2_STOP1_BITS (0U << 12)
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#define USART_CR2_STOP0P5_BITS (1U << 12)
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#define USART_CR2_STOP2_BITS (2U << 12)
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#define USART_CR2_STOP1P5_BITS (3U << 12)
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/** @} */
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/**
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* @name CR3 register additional macros
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* @{
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*/
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#define USART_CR3_TXFTCFG_NONFULL (0U)
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#define USART_CR3_TXFTCFG_1Q (USART_CR3_TXFTCFG_0)
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#define USART_CR3_TXFTCFG_1H (USART_CR3_TXFTCFG_1)
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#define USART_CR3_TXFTCFG_3Q (USART_CR3_TXFTCFG_1 | USART_CR3_TXFTCFG_0)
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#define USART_CR3_TXFTCFG_7E (USART_CR3_TXFTCFG_2)
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#define USART_CR3_TXFTCFG_EMPTY (USART_CR3_TXFTCFG_2 | USART_CR3_TXFTCFG_0)
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#define USART_CR3_RXFTCFG_NONEMPTY (0U)
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#define USART_CR3_RXFTCFG_1Q (USART_CR3_RXFTCFG_0)
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#define USART_CR3_RXFTCFG_1H (USART_CR3_RXFTCFG_1)
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#define USART_CR3_RXFTCFG_3Q (USART_CR3_RXFTCFG_1 | USART_CR3_RXFTCFG_0)
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#define USART_CR3_RXFTCFG_7E (USART_CR3_RXFTCFG_2)
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#define USART_CR3_RXFTCFG_FULL (USART_CR3_RXFTCFG_2 | USART_CR3_RXFTCFG_0)
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/** @} */
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/**
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* @name PRESC register additional macros
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* @{
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*/
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#define USART_PRESC_N(n) ((n) << USART_PRESC_PRESCALER_Pos)
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#define USART_PRESC1 USART_PRESC_N(0U)
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#define USART_PRESC2 USART_PRESC_N(1U)
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#define USART_PRESC4 USART_PRESC_N(2U)
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#define USART_PRESC6 USART_PRESC_N(3U)
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#define USART_PRESC8 USART_PRESC_N(4U)
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#define USART_PRESC10 USART_PRESC_N(5U)
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#define USART_PRESC12 USART_PRESC_N(6U)
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#define USART_PRESC16 USART_PRESC_N(7U)
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#define USART_PRESC32 USART_PRESC_N(8U)
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#define USART_PRESC64 USART_PRESC_N(9U)
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#define USART_PRESC128 USART_PRESC_N(10U)
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#define USART_PRESC256 USART_PRESC_N(11U)
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/** @} */
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/*===========================================================================*/
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/* Driver pre-compile time settings. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Derived constants and error checks. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver data structures and types. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver macros. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* STM32_USART_H */
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/** @} */
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