Similar to how we have abstract defines for the stop bits, parity and flow control common mode namees, provide abstract flag names for the "standard" flags. This allows us to start using common API code for v1 and v2 uarts For stm32f3, drop the "compatibility" defines that simply pollute the namespace, making it confusingly appear as if f3 has both SR and ISR registers.
580 lines
16 KiB
C
580 lines
16 KiB
C
/** @addtogroup usart_defines
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@author @htmlonly © @endhtmlonly 2016 Cem Basoglu <cem.basoglu@web.de>
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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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* Copyright (C) 2016 Cem Basoglu <cem.basoglu@web.de>
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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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#pragma once
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/** @defgroup usart_registers USART Registers
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@ingroup usart_defines
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@{*/
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/** Control register 1 (USARTx_CR1) */
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#define USART_CR1(usart_base) MMIO32((usart_base) + 0x00)
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#define USART1_CR1 USART_CR1(USART1_BASE)
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#define USART2_CR1 USART_CR1(USART2_BASE)
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#define USART3_CR1 USART_CR1(USART3_BASE)
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#if defined(USART4_BASE)
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#define USART4_CR1 USART_CR1(USART4_BASE)
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#endif
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#if defined(UART4_BASE)
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#define UART4_CR1 USART_CR1(UART4_BASE)
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#endif
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#if defined(UART5_BASE)
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#define UART5_CR1 USART_CR1(UART5_BASE)
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#endif
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/** Control register 2 (USARTx_CR2) */
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#define USART_CR2(usart_base) MMIO32((usart_base) + 0x04)
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#define USART1_CR2 USART_CR2(USART1_BASE)
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#define USART2_CR2 USART_CR2(USART2_BASE)
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#define USART3_CR2 USART_CR2(USART3_BASE)
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#if defined(USART4_BASE)
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#define USART4_CR2 USART_CR2(USART4_BASE)
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#endif
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#if defined(UART4_BASE)
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#define UART4_CR2 USART_CR2(UART4_BASE)
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#endif
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#if defined(UART5_BASE)
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#define UART5_CR2 USART_CR2(UART5_BASE)
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#endif
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/** Control register 3 (USARTx_CR3) */
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#define USART_CR3(usart_base) MMIO32((usart_base) + 0x08)
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#define USART1_CR3 USART_CR3(USART1_BASE)
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#define USART2_CR3 USART_CR3(USART2_BASE)
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#define USART3_CR3 USART_CR3(USART3_BASE)
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#if defined(USART4_BASE)
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#define USART4_CR3 USART_CR3(USART4_BASE)
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#endif
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#if defined(UART4_BASE)
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#define UART4_CR3 USART_CR3(UART4_BASE)
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#endif
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#if defined(UART5_BASE)
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#define UART5_CR3 USART_CR3(UART5_BASE)
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#endif
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/** Baud rate register (USARTx_BRR) */
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#define USART_BRR(usart_base) MMIO32((usart_base) + 0x0C)
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#define USART1_BRR USART_BRR(USART1_BASE)
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#define USART2_BRR USART_BRR(USART2_BASE)
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#define USART3_BRR USART_BRR(USART3_BASE)
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#if defined(USART4_BASE)
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#define USART4_BRR USART_BRR(USART4_BASE)
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#endif
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#if defined(UART4_BASE)
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#define UART4_BRR USART_BRR(UART4_BASE)
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#endif
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#if defined(UART5_BASE)
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#define UART5_BRR USART_BRR(UART5_BASE)
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#endif
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/** Guard time and prescaler register (USARTx_GTPR) */
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#define USART_GTPR(usart_base) MMIO32((usart_base) + 0x10)
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#define USART1_GTPR USART_GTPR(USART1_BASE)
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#define USART2_GTPR USART_GTPR(USART2_BASE)
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#define USART3_GTPR USART_GTPR(USART3_BASE)
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#if defined(USART4_BASE)
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#define USART4_GTPR USART_GTPR(USART4_BASE)
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#endif
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#if defined(UART4_BASE)
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#define UART4_GTPR USART_GTPR(UART4_BASE)
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#endif
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#if defined(UART5_BASE)
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#define UART5_GTPR USART_GTPR(UART5_BASE)
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#endif
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/** Receiver timeout register (USART_RTOR) */
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#define USART_RTOR(usart_base) MMIO32((usart_base) + 0x14)
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#define USART1_RTOR USART_RTOR(USART1_BASE)
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#define USART2_RTOR USART_RTOR(USART2_BASE)
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#define USART3_RTOR USART_RTOR(USART3_BASE)
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#if defined(USART4_BASE)
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#define USART4_RTOR USART_RTOR(USART4_BASE)
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#endif
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#if defined(UART4_BASE)
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#define UART4_RTOR USART_RTOR(UART4_BASE)
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#endif
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#if defined(UART5_BASE)
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#define UART5_RTOR USART_RTOR(UART5_BASE)
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#endif
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/** Request register (USART_RQR) */
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#define USART_RQR(usart_base) MMIO32((usart_base) + 0x18)
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#define USART1_RQR USART_RQR(USART1_BASE)
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#define USART2_RQR USART_RQR(USART2_BASE)
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#define USART3_RQR USART_RQR(USART3_BASE)
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#if defined(USART4_BASE)
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#define USART4_RQR USART_RQR(USART4_BASE)
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#endif
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#if defined(UART4_BASE)
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#define UART4_RQR USART_RQR(UART4_BASE)
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#endif
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#if defined(UART5_BASE)
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#define UART5_RQR USART_RQR(UART5_BASE)
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#endif
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/** Interrupt & status register (USART_ISR) */
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#define USART_ISR(usart_base) MMIO32((usart_base) + 0x1C)
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#define USART1_ISR USART_ISR(USART1_BASE)
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#define USART2_ISR USART_ISR(USART2_BASE)
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#define USART3_ISR USART_ISR(USART3_BASE)
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#if defined(USART4_BASE)
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#define USART4_ISR USART_ISR(USART4_BASE)
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#endif
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#if defined(UART4_BASE)
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#define UART4_ISR USART_ISR(UART4_BASE)
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#endif
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#if defined(UART5_BASE)
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#define UART5_ISR USART_ISR(UART5_BASE)
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#endif
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/** Interrupt flag clear register (USART_ICR) */
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#define USART_ICR(usart_base) MMIO32((usart_base) + 0x20)
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#define USART1_ICR USART_ICR(USART1_BASE)
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#define USART2_ICR USART_ICR(USART2_BASE)
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#define USART3_ICR USART_ICR(USART3_BASE)
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#if defined(USART4_BASE)
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#define USART4_ICR USART_ICR(USART4_BASE)
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#endif
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#if defined(UART4_BASE)
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#define UART4_ICR USART_ICR(UART4_BASE)
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#endif
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#if defined(UART5_BASE)
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#define UART5_ICR USART_ICR(UART5_BASE)
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#endif
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/** Receive data register (USART_RDR) */
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#define USART_RDR(usart_base) MMIO32((usart_base) + 0x24)
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#define USART1_RDR USART_RDR(USART1_BASE)
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#define USART2_RDR USART_RDR(USART2_BASE)
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#define USART3_RDR USART_RDR(USART3_BASE)
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#if defined(USART4_BASE)
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#define USART4_RDR USART_RDR(USART4_BASE)
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#endif
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#if defined(UART4_BASE)
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#define UART4_RDR USART_RDR(UART4_BASE)
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#endif
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#if defined(UART5_BASE)
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#define UART5_RDR USART_RDR(UART5_BASE)
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#endif
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/** Transmit data register (USART_TDR) */
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#define USART_TDR(usart_base) MMIO32((usart_base) + 0x28)
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#define USART1_TDR USART_TDR(USART1_BASE)
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#define USART2_TDR USART_TDR(USART2_BASE)
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#define USART3_TDR USART_TDR(USART3_BASE)
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#if defined(USART4_BASE)
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#define USART4_TDR USART_TDR(USART4_BASE)
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#endif
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#if defined(UART4_BASE)
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#define UART4_TDR USART_TDR(UART4_BASE)
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#endif
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#if defined(UART5_BASE)
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#define UART5_TDR USART_TDR(UART5_BASE)
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#endif
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/**@}*/
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/** @defgroup usart_convenience_flags U(S)ART convenience Flags
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* @ingroup STM32F_usart_defines
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* We define the "common" lower flag bits using a standard name,
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* allowing them to be used regardless of which usart peripheral
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* version you have.
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* @{
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*/
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#define USART_FLAG_PE USART_ISR_PE
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#define USART_FLAG_FE USART_ISR_FE
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#define USART_FLAG_NF USART_ISR_NF
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#define USART_FLAG_ORE USART_ISR_ORE
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#define USART_FLAG_IDLE USART_ISR_IDLE
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#define USART_FLAG_RXNE USART_ISR_RXNE
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#define USART_FLAG_TC USART_ISR_TC
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#define USART_FLAG_TXE USART_ISR_TXE
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/**@}*/
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/*****************************************************************************/
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/* Register values */
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/*****************************************************************************/
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/** @defgroup usart_cr1_values USART_CR1 Values
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@ingroup usart_defines
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@{*/
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/** M1: Wordlength. @sa M0 */
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#define USART_CR1_M1 (1 << 28) /* F07x */
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/** EOBIE: End of Block interrupt enable */
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#define USART_CR1_EOBIE (1 << 27)
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/** RTOIE: Receiver timeout interrupt enable */
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#define USART_CR1_RTOIE (1 << 26)
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/* DEAT[4:0]: Driver Enable assertion time */
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/* DEDT[4:0]: Driver Enable deassertion time */
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/** OVER8: Oversampling mode */
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#define USART_CR1_OVER8 (1 << 15)
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/** CMIE: Character match interrupt enable */
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#define USART_CR1_CMIE (1 << 14)
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/** MME: Mute mode enable */
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#define USART_CR1_MME (1 << 13)
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/** M0: Word length */
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#define USART_CR1_M0 (1 << 12)
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/** @deprecated alias for M0.*/
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#define USART_CR1_M USART_CR1_M0
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/** WAKE: Receiver wakeup method */
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#define USART_CR1_WAKE (1 << 11)
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/** PCE: Parity control enable */
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#define USART_CR1_PCE (1 << 10)
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/** PS: Parity selection */
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#define USART_CR1_PS (1 << 9)
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/** PEIE: PE interrupt enable */
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#define USART_CR1_PEIE (1 << 8)
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/** TXEIE: Interrupt enable */
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#define USART_CR1_TXEIE (1 << 7)
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/** TCIE: Transmission complete interrupt enable */
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#define USART_CR1_TCIE (1 << 6)
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/** RXNEIE: RXNE interrupt enable */
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#define USART_CR1_RXNEIE (1 << 5)
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/** IDLEIE: IDLE interrupt enable */
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#define USART_CR1_IDLEIE (1 << 4)
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/** TE: Transmitter enable */
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#define USART_CR1_TE (1 << 3)
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/** RE: Receiver enable */
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#define USART_CR1_RE (1 << 2)
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/** UESM: USART enable in Stop mode */
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#define USART_CR1_UESM (1 << 1)
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/** UE: USART enable */
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#define USART_CR1_UE (1 << 0)
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/**@}*/
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/*------------------------------------------------*/
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/** @defgroup usart_cr2_values USART_CR2 Values
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@ingroup usart_defines
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@{*/
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/** RTOEN: Receiver timeout enable */
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#define USART_CR2_RTOEN (1 << 23)
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/** ABREN: Auto baud rate enable */
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#define USART_CR2_ABREN (1 << 20)
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/** MSBFIRST: Most significant bit first */
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#define USART_CR2_MSBFIRST (1 << 19)
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/** DATAINV: Binary data inversion */
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#define USART_CR2_DATAINV (1 << 18)
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/** TXINV: TX pin active level inversion */
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#define USART_CR2_TXINV (1 << 17)
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/** RXINV: RX pin active level inversion */
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#define USART_CR2_RXINV (1 << 16)
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/** SWAP: Swap TX/RX pins */
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#define USART_CR2_SWAP (1 << 15)
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/** LINEN: LIN mode enable */
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#define USART_CR2_LINEN (1 << 14)
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/** CLKEN: Clock enable */
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#define USART_CR2_CLKEN (1 << 11)
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/** CPOL: Clock polarity */
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#define USART_CR2_CPOL (1 << 10)
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/** CPHA: Clock phase */
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#define USART_CR2_CPHA (1 << 9)
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/** LBCL: Last bit clock pulse */
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#define USART_CR2_LBCL (1 << 8)
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/** LBDIE: LIN break detection interrupt enable */
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#define USART_CR2_LBDIE (1 << 6)
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/** LBDL: LIN break detection length */
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#define USART_CR2_LBDL (1 << 5)
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/** ADDM7:7-bit Address Detection/4-bit Address Detection */
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#define USART_CR2_ADDM7 (1 << 4)
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/**@}*/
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/*------------------------------------------------*/
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/** @defgroup usart_cr3_values USART_CR3 Values
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@ingroup usart_defines
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@{*/
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/** WUFIE: Wakeup from Stop mode interrupt enable */
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#define USART_CR3_WUFIE (1 << 22)
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/** WUS[1:0]: Wakeup from Stop mode interrupt flag selection */
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#define USART_CR3_WUS_ADDRMATCH (0x0 << 20)
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#define USART_CR3_WUS_START_BIT (0x2 << 20)
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#define USART_CR3_WUS_RXNE (0x3 << 20)
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/** DEP: Driver enable polarity selection */
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#define USART_CR3_DEP (1 << 15)
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/** DEM: Driver enable mode */
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#define USART_CR3_DEM (1 << 14)
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/** DDRE: DMA Disable on Reception Error */
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#define USART_CR3_DDRE (1 << 13)
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/** OVRDIS: Overrun Disable */
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#define USART_CR3_OVRDIS (1 << 12)
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/** ONEBIT: One sample bit method enable */
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#define USART_CR3_ONEBIT (1 << 11)
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/** CTSIE: CTS interrupt enable. Not on UARTs */
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#define USART_CR3_CTSIE (1 << 10)
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/** CTSE: CTS enable. Not on UARTS */
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#define USART_CR3_CTSE (1 << 9)
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/** RTSE: RTS enable. Not on UARTs */
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#define USART_CR3_RTSE (1 << 8)
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/** DMAT: DMA enable transmitter. Not on UARTs */
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#define USART_CR3_DMAT (1 << 7)
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/** DMAR: DMA enable receiver. Not on UARTS */
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#define USART_CR3_DMAR (1 << 6)
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/** SCEN: Smartcard mode enable. Not on UARTs */
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#define USART_CR3_SCEN (1 << 5)
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/** NACK: Smartcard NACK enable. Not UARTs */
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#define USART_CR3_NACK (1 << 4)
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/** HDSEL: Half-duplex selection */
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#define USART_CR3_HDSEL (1 << 3)
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/** IRLP: IrDA low-power */
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#define USART_CR3_IRLP (1 << 2)
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/** IREN: IrDA mode enable */
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#define USART_CR3_IREN (1 << 1)
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/** EIE: Error interrupt enable */
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#define USART_CR3_EIE (1 << 0)
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/**@}*/
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/* ------------------------------------------------------ */
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/** @defgroup usart_rtor_values USART_RTOR Values
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* @ingroup usart_defines
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* @{
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*/
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/** BLEN[7:0]: Block Length */
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#define USART_RTOR_BLEN_SHIFT 24
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#define USART_RTOR_BLEN_MASK (0xFF << USART_RTOR_BLEN_SHIFT)
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#define USART_RTOR_BLEN_VAL(x) ((x) << USART_RTOR_BLEN_SHIFT)
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/** RTO[23:0]: Receiver timeout value */
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#define USART_RTOR_RTO_SHIFT 0
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#define USART_RTOR_RTO_MASK (0xFFFFF << USART_RTOR_RTO_SHIFT)
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#define USART_RTOR_RTO_VAL(x) ((x) << USART_RTOR_RTO_SHIFT)
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/**@}*/
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/* ------------------------------------------------------ */
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/** @defgroup usart_rqr_values USART_RQR Values
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* @ingroup usart_defines
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* @{
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*/
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/** TXFRQ: Transmit data flush request */
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#define USART_RQR_TXFRQ (1 << 4)
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/** RXFRQ: Receive data flush request */
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#define USART_RQR_RXFRQ (1 << 3)
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/** MMRQ: Mute mode request */
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#define USART_RQR_MMRQ (1 << 2)
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/** SBKRQ: Send break request */
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#define USART_RQR_SBKRQ (1 << 1)
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/** ABRRQ: Auto baud rate request */
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#define USART_RQR_ABKRQ (1 << 0)
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/**@}*/
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/* ------------------------------------------------------ */
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/** @defgroup usart_isr_values USART_ISR Values
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* @ingroup usart_defines
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* @{
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*/
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/** REACK: Receive enable acknowledge flag */
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#define USART_ISR_REACK (1 << 22)
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/** TEACK: Transmit enable acknowledge flag */
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#define USART_ISR_TEACK (1 << 21)
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/** WUF: Wakeup from Stop mode flag */
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#define USART_ISR_WUF (1 << 20)
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/** RWU: Receiver wakeup from Mute mode */
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#define USART_ISR_RWU (1 << 19)
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/** SBKF: Send break flag */
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#define USART_ISR_SBKF (1 << 18)
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/** CMF: Character match flag */
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#define USART_ISR_CMF (1 << 17)
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/** BUSY: Busy flag */
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#define USART_ISR_BUSY (1 << 16)
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/** ABRF: Auto baud rate flag */
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#define USART_ISR_ABRF (1 << 15)
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/** ABRE: Auto baud rate error */
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#define USART_ISR_ABRE (1 << 14)
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/** EOBF: End of block flag */
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#define USART_ISR_EOBF (1 << 12)
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/** RTOF: Receiver timeout */
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#define USART_ISR_RTOF (1 << 11)
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/** CTS: CTS flag */
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#define USART_ISR_CTS (1 << 10)
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/** CTSIF: CTS interrupt flag */
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#define USART_ISR_CTSIF (1 << 9)
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/** LBDF: LIN break detection flag */
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#define USART_ISR_LBDF (1 << 8)
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/** TXE: Transmit data register empty */
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#define USART_ISR_TXE (1 << 7)
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/** TC: Transmission complete */
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#define USART_ISR_TC (1 << 6)
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/** RXNE: Read data register not empty */
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#define USART_ISR_RXNE (1 << 5)
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/** IDLE: Idle line detected */
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#define USART_ISR_IDLE (1 << 4)
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/** ORE: Overrun error */
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#define USART_ISR_ORE (1 << 3)
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/** NF: Noise detected flag */
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#define USART_ISR_NF (1 << 2)
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/** FE: Framing error */
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#define USART_ISR_FE (1 << 1)
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/** PE: Parity error */
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#define USART_ISR_PE (1 << 0)
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/**@}*/
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/* ------------------------------------------------------ */
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/** @defgroup usart_icr_values USART_ICR Values
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* @ingroup usart_defines
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* @{
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*/
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/** WUCF: Wakeup from Stop mode clear flag */
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#define USART_ICR_WUCF (1 << 20)
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/** CMCF: Character match clear flag */
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#define USART_ICR_CMCF (1 << 17)
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/** EOBCF: End of timeout clear flag */
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#define USART_ICR_EOBCF (1 << 12)
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/** RTOCF: Receiver timeout clear flag */
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#define USART_ICR_RTOCF (1 << 11)
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/** CTSCF: CTS clear flag */
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#define USART_ICR_CTSCF (1 << 9)
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/** LBDCF: LIN break detection clear flag */
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#define USART_ICR_LBDCF (1 << 8)
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/** TCCF: Transmission complete clear flag */
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#define USART_ICR_TCCF (1 << 6)
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/** IDLECF: Idle line detected clear flag */
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#define USART_ICR_IDLECF (1 << 4)
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/** ORECF: Overrun error clear flag */
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#define USART_ICR_ORECF (1 << 3)
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/** NCF: Noise detected clear flag */
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#define USART_ICR_NCF (1 << 2)
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/** FECF: Framing error clear flag */
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#define USART_ICR_FECF (1 << 1)
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/** PECF: Parity error clear flag */
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#define USART_ICR_PECF (1 << 0)
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/**@}*/
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/* --- Function prototypes ------------------------------------------------- */
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BEGIN_DECLS
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void usart_enable_data_inversion(uint32_t usart);
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void usart_disable_data_inversion(uint32_t usart);
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void usart_enable_tx_inversion(uint32_t usart);
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void usart_disable_tx_inversion(uint32_t usart);
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void usart_enable_rx_inversion(uint32_t usart);
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void usart_disable_rx_inversion(uint32_t usart);
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void usart_enable_halfduplex(uint32_t usart);
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void usart_disable_halfduplex(uint32_t usart);
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void usart_set_rx_timeout_value(uint32_t usart, uint32_t value);
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void usart_enable_rx_timeout(uint32_t usart);
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void usart_disable_rx_timeout(uint32_t usart);
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void usart_enable_rx_timeout_interrupt(uint32_t usart);
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void usart_disable_rx_timeout_interrupt(uint32_t usart);
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END_DECLS
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