diff options
author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2013-02-08 19:14:09 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2013-02-08 19:14:09 +0000 |
commit | 1603b1a112981f8054b69612a5ad0721eb865bbd (patch) | |
tree | 8a79363cc308dee82eac89baf5ff1ccde835d7ce /nuttx/arch/arm/src | |
parent | b6abad5fbf5877bf9c26269bff418726f26e4b9d (diff) | |
download | px4-nuttx-1603b1a112981f8054b69612a5ad0721eb865bbd.tar.gz px4-nuttx-1603b1a112981f8054b69612a5ad0721eb865bbd.tar.bz2 px4-nuttx-1603b1a112981f8054b69612a5ad0721eb865bbd.zip |
Add STM32 F3 USART definitions
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5626 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/arm/src')
-rw-r--r-- | nuttx/arch/arm/src/stm32/chip/stm32f10xxx_uart.h | 217 | ||||
-rw-r--r-- | nuttx/arch/arm/src/stm32/chip/stm32f20xxx_uart.h (renamed from nuttx/arch/arm/src/stm32/chip/stm32_uart.h) | 26 | ||||
-rw-r--r-- | nuttx/arch/arm/src/stm32/chip/stm32f30xxx_uart.h | 334 | ||||
-rw-r--r-- | nuttx/arch/arm/src/stm32/chip/stm32f40xxx_uart.h | 229 | ||||
-rw-r--r-- | nuttx/arch/arm/src/stm32/stm32_lowputc.c | 123 | ||||
-rw-r--r-- | nuttx/arch/arm/src/stm32/stm32_uart.h | 13 | ||||
-rw-r--r-- | nuttx/arch/arm/src/stm32/stm32f30xxx_rcc.c | 3 |
7 files changed, 895 insertions, 50 deletions
diff --git a/nuttx/arch/arm/src/stm32/chip/stm32f10xxx_uart.h b/nuttx/arch/arm/src/stm32/chip/stm32f10xxx_uart.h new file mode 100644 index 000000000..414f34c90 --- /dev/null +++ b/nuttx/arch/arm/src/stm32/chip/stm32f10xxx_uart.h @@ -0,0 +1,217 @@ +/************************************************************************************ + * arch/arm/src/stm32/chip/stm32f10xxx_uart.h + * + * Copyright (C) 2009, 2011-2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ************************************************************************************/ + +#ifndef __ARCH_ARM_STC_STM32_CHIP_STM32F10XXX_UART_H +#define __ARCH_ARM_STC_STM32_CHIP_STM32F10XXX_UART_H + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +#include <nuttx/config.h> + +#include "chip.h" + +/************************************************************************************ + * Pre-processor Definitions + ************************************************************************************/ + +/* Register Offsets *****************************************************************/ + +#define STM32_USART_SR_OFFSET 0x0000 /* Status register (32-bits) */ +#define STM32_USART_DR_OFFSET 0x0004 /* Data register (32-bits) */ +#define STM32_USART_BRR_OFFSET 0x0008 /* Baud Rate Register (32-bits) */ +#define STM32_USART_CR1_OFFSET 0x000c /* Control register 1 (32-bits) */ +#define STM32_USART_CR2_OFFSET 0x0010 /* Control register 2 (32-bits) */ +#define STM32_USART_CR3_OFFSET 0x0014 /* Control register 3 (32-bits) */ +#define STM32_USART_GTPR_OFFSET 0x0018 /* Guard time and prescaler register (32-bits) */ + +/* Register Addresses ***************************************************************/ + +#if STM32_NUSART > 0 +# define STM32_USART1_SR (STM32_USART1_BASE+STM32_USART_SR_OFFSET) +# define STM32_USART1_DR (STM32_USART1_BASE+STM32_USART_DR_OFFSET) +# define STM32_USART1_BRR (STM32_USART1_BASE+STM32_USART_BRR_OFFSET) +# define STM32_USART1_CR1 (STM32_USART1_BASE+STM32_USART_CR1_OFFSET) +# define STM32_USART1_CR2 (STM32_USART1_BASE+STM32_USART_CR2_OFFSET) +# define STM32_USART1_CR3 (STM32_USART1_BASE+STM32_USART_CR3_OFFSET) +# define STM32_USART1_GTPR (STM32_USART1_BASE+STM32_USART_GTPR_OFFSET) +#endif + +#if STM32_NUSART > 1 +# define STM32_USART2_SR (STM32_USART2_BASE+STM32_USART_SR_OFFSET) +# define STM32_USART2_DR (STM32_USART2_BASE+STM32_USART_DR_OFFSET) +# define STM32_USART2_BRR (STM32_USART2_BASE+STM32_USART_BRR_OFFSET) +# define STM32_USART2_CR1 (STM32_USART2_BASE+STM32_USART_CR1_OFFSET) +# define STM32_USART2_CR2 (STM32_USART2_BASE+STM32_USART_CR2_OFFSET) +# define STM32_USART2_CR3 (STM32_USART2_BASE+STM32_USART_CR3_OFFSET) +# define STM32_USART2_GTPR (STM32_USART2_BASE+STM32_USART_GTPR_OFFSET) +#endif + +#if STM32_NUSART > 2 +# define STM32_USART3_SR (STM32_USART3_BASE+STM32_USART_SR_OFFSET) +# define STM32_USART3_DR (STM32_USART3_BASE+STM32_USART_DR_OFFSET) +# define STM32_USART3_BRR (STM32_USART3_BASE+STM32_USART_BRR_OFFSET) +# define STM32_USART3_CR1 (STM32_USART3_BASE+STM32_USART_CR1_OFFSET) +# define STM32_USART3_CR2 (STM32_USART3_BASE+STM32_USART_CR2_OFFSET) +# define STM32_USART3_CR3 (STM32_USART3_BASE+STM32_USART_CR3_OFFSET) +# define STM32_USART3_GTPR (STM32_USART3_BASE+STM32_USART_GTPR_OFFSET) +#endif + +#if STM32_NUSART > 3 +# define STM32_UART4_SR (STM32_UART4_BASE+STM32_USART_SR_OFFSET) +# define STM32_UART4_DR (STM32_UART4_BASE+STM32_USART_DR_OFFSET) +# define STM32_UART4_BRR (STM32_UART4_BASE+STM32_USART_BRR_OFFSET) +# define STM32_UART4_CR1 (STM32_UART4_BASE+STM32_USART_CR1_OFFSET) +# define STM32_UART4_CR2 (STM32_UART4_BASE+STM32_USART_CR2_OFFSET) +# define STM32_UART4_CR3 (STM32_UART4_BASE+STM32_USART_CR3_OFFSET) +#endif + +#if STM32_NUSART > 4 +# define STM32_UART5_SR (STM32_UART5_BASE+STM32_USART_SR_OFFSET) +# define STM32_UART5_DR (STM32_UART5_BASE+STM32_USART_DR_OFFSET) +# define STM32_UART5_BRR (STM32_UART5_BASE+STM32_USART_BRR_OFFSET) +# define STM32_UART5_CR1 (STM32_UART5_BASE+STM32_USART_CR1_OFFSET) +# define STM32_UART5_CR2 (STM32_UART5_BASE+STM32_USART_CR2_OFFSET) +# define STM32_UART5_CR3 (STM32_UART5_BASE+STM32_USART_CR3_OFFSET) +#endif + +/* Register Bitfield Definitions ****************************************************/ + +/* Status register */ + +#define USART_SR_PE (1 << 0) /* Bit 0: Parity Error */ +#define USART_SR_FE (1 << 1) /* Bit 1: Framing Error */ +#define USART_SR_NE (1 << 2) /* Bit 2: Noise Error Flag */ +#define USART_SR_ORE (1 << 3) /* Bit 3: OverRun Error */ +#define USART_SR_IDLE (1 << 4) /* Bit 4: IDLE line detected */ +#define USART_SR_RXNE (1 << 5) /* Bit 5: Read Data Register Not Empty */ +#define USART_SR_TC (1 << 6) /* Bit 6: Transmission Complete */ +#define USART_SR_TXE (1 << 7) /* Bit 7: Transmit Data Register Empty */ +#define USART_SR_LBD (1 << 8) /* Bit 8: LIN Break Detection Flag */ +#define USART_SR_CTS (1 << 9) /* Bit 9: CTS Flag */ + +#define USART_SR_ALLBITS (0x03ff) +#define USART_SR_CLRBITS (USART_SR_CTS|USART_SR_LBD) /* Cleared by SW write to SR */ + +/* Data register */ + +#define USART_DR_SHIFT (0) /* Bits 8:0: Data value */ +#define USART_DR_MASK (0xff << USART_DR_SHIFT) + +/* Baud Rate Register */ + +#define USART_BRR_FRAC_SHIFT (0) /* Bits 3-0: fraction of USARTDIV */ +#define USART_BRR_FRAC_MASK (0x0f << USART_BRR_FRAC_SHIFT) +#define USART_BRR_MANT_SHIFT (4) /* Bits 15-4: mantissa of USARTDIV */ +#define USART_BRR_MANT_MASK (0x0fff << USART_BRR_MANT_SHIFT) + +/* Control register 1 */ + +#define USART_CR1_SBK (1 << 0) /* Bit 0: Send Break */ +#define USART_CR1_RWU (1 << 1) /* Bit 1: Receiver wakeup */ +#define USART_CR1_RE (1 << 2) /* Bit 2: Receiver Enable */ +#define USART_CR1_TE (1 << 3) /* Bit 3: Transmitter Enable */ +#define USART_CR1_IDLEIE (1 << 4) /* Bit 4: IDLE Interrupt Enable */ +#define USART_CR1_RXNEIE (1 << 5) /* Bit 5: RXNE Interrupt Enable */ +#define USART_CR1_TCIE (1 << 6) /* Bit 6: Transmission Complete Interrupt Enable */ +#define USART_CR1_TXEIE (1 << 7) /* Bit 7: TXE Interrupt Enable */ +#define USART_CR1_PEIE (1 << 8) /* Bit 8: PE Interrupt Enable */ +#define USART_CR1_PS (1 << 9) /* Bit 9: Parity Selection */ +#define USART_CR1_PCE (1 << 10) /* Bit 10: Parity Control Enable */ +#define USART_CR1_WAKE (1 << 11) /* Bit 11: Wakeup method */ +#define USART_CR1_M (1 << 12) /* Bit 12: word length */ +#define USART_CR1_UE (1 << 13) /* Bit 13: USART Enable */ + +#define USART_CR1_ALLINTS (USART_CR1_IDLEIE|USART_CR1_RXNEIE|USART_CR1_TCIE|USART_CR1_PEIE) + +/* Control register 2 */ + +#define USART_CR2_ADD_SHIFT (0) /* Bits 3-0: Address of the USART node */ +#define USART_CR2_ADD_MASK (0x0f << USART_CR2_ADD_SHIFT) +#define USART_CR2_LBDL (1 << 5) /* Bit 5: LIN Break Detection Length */ +#define USART_CR2_LBDIE (1 << 6) /* Bit 6: LIN Break Detection Interrupt Enable */ +#define USART_CR2_LBCL (1 << 8) /* Bit 8: Last Bit Clock pulse */ +#define USART_CR2_CPHA (1 << 9) /* Bit 9: Clock Phase */ +#define USART_CR2_CPOL (1 << 10) /* Bit 10: Clock Polarity */ +#define USART_CR2_CLKEN (1 << 11) /* Bit 11: Clock Enable */ +#define USART_CR2_STOP_SHIFT (12) /* Bits 13-12: STOP bits */ +#define USART_CR2_STOP_MASK (3 << USART_CR2_STOP_SHIFT) +# define USART_CR2_STOP1 (0 << USART_CR2_STOP_SHIFT) /* 00: 1 Stop bit */ +# define USART_CR2_STOP0p5 (1 << USART_CR2_STOP_SHIFT) /* 01: 0.5 Stop bit */ +# define USART_CR2_STOP2 (2 << USART_CR2_STOP_SHIFT) /* 10: 2 Stop bits */ +# define USART_CR2_STOP1p5 (3 << USART_CR2_STOP_SHIFT) /* 11: 1.5 Stop bit */ +#define USART_CR2_LINEN (1 << 14) /* Bit 14: LIN mode enable */ + +/* Control register 3 */ + +#define USART_CR3_EIE (1 << 0) /* Bit 0: Error Interrupt Enable */ +#define USART_CR3_IREN (1 << 1) /* Bit 1: IrDA mode Enable */ +#define USART_CR3_IRLP (1 << 2) /* Bit 2: IrDA Low-Power */ +#define USART_CR3_HDSEL (1 << 3) /* Bit 3: Half-Duplex Selection */ +#define USART_CR3_NACK (1 << 4) /* Bit 4: Smartcard NACK enable */ +#define USART_CR3_SCEN (1 << 5) /* Bit 5: Smartcard mode enable */ +#define USART_CR3_DMAR (1 << 6) /* Bit 6: DMA Enable Receiver */ +#define USART_CR3_DMAT (1 << 7) /* Bit 7: DMA Enable Transmitter */ +#define USART_CR3_RTSE (1 << 8) /* Bit 8: RTS Enable */ +#define USART_CR3_CTSE (1 << 9) /* Bit 9: CTS Enable */ +#define USART_CR3_CTSIE (1 << 10) /* Bit 10: CTS Interrupt Enable */ + +/* Guard time and prescaler register */ + +#define USART_GTPR_PSC_SHIFT (0) /* Bits 0-7: Prescaler value */ +#define USART_GTPR_PSC_MASK (0xff << USART_GTPR_PSC_SHIFT) +#define USART_GTPR_GT_SHIFT (8) /* Bits 8-15: Guard time value */ +#define USART_GTPR_GT_MASK (0xff << USART_GTPR_GT_SHIFT) + +/* Compatibility definitions ********************************************************/ +/* F3 Transmit/Read registers */ + +#define STM32_USART_RDR_OFFSET STM32_USART_DR_OFFSET /* Receive data register */ +#define STM32_USART_TDR_OFFSET STM32_USART_DR_OFFSET /* Transmit data register */ + +/************************************************************************************ + * Public Types + ************************************************************************************/ + +/************************************************************************************ + * Public Data + ************************************************************************************/ + +/************************************************************************************ + * Public Functions + ************************************************************************************/ + +#endif /* __ARCH_ARM_STC_STM32_CHIP_STM32F10XXX_UART_H */ diff --git a/nuttx/arch/arm/src/stm32/chip/stm32_uart.h b/nuttx/arch/arm/src/stm32/chip/stm32f20xxx_uart.h index d3c1e137e..5e5b4449d 100644 --- a/nuttx/arch/arm/src/stm32/chip/stm32_uart.h +++ b/nuttx/arch/arm/src/stm32/chip/stm32f20xxx_uart.h @@ -1,7 +1,7 @@ /************************************************************************************ - * arch/arm/src/stm32/chip/stm32_uart.h + * arch/arm/src/stm32/chip/stm32f20xxx_uart.h * - * Copyright (C) 2009, 2011-2012 Gregory Nutt. All rights reserved. + * Copyright (C) 2009, 2011-2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> * * Redistribution and use in source and binary forms, with or without @@ -33,8 +33,8 @@ * ************************************************************************************/ -#ifndef __ARCH_ARM_STC_STM32_CHIP_STM32_UART_H -#define __ARCH_ARM_STC_STM32_CHIP_STM32_UART_H +#ifndef __ARCH_ARM_STC_STM32_CHIP_STM32F20XXX_UART_H +#define __ARCH_ARM_STC_STM32_CHIP_STM32F20XXX_UART_H /************************************************************************************ * Included Files @@ -164,10 +164,7 @@ #define USART_CR1_WAKE (1 << 11) /* Bit 11: Wakeup method */ #define USART_CR1_M (1 << 12) /* Bit 12: word length */ #define USART_CR1_UE (1 << 13) /* Bit 13: USART Enable */ - -#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX) -# define USART_CR1_OVER8 (1 << 15) /* Bit 15: Oversampling mode */ -#endif +#define USART_CR1_OVER8 (1 << 15) /* Bit 15: Oversampling mode */ #define USART_CR1_ALLINTS (USART_CR1_IDLEIE|USART_CR1_RXNEIE|USART_CR1_TCIE|USART_CR1_PEIE) @@ -202,10 +199,7 @@ #define USART_CR3_RTSE (1 << 8) /* Bit 8: RTS Enable */ #define USART_CR3_CTSE (1 << 9) /* Bit 9: CTS Enable */ #define USART_CR3_CTSIE (1 << 10) /* Bit 10: CTS Interrupt Enable */ - -#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX) -# define USART_CR1_ONEBIT (1 << 11) /* Bit 11: One sample bit method enable */ -#endif +#define USART_CR1_ONEBIT (1 << 11) /* Bit 11: One sample bit method enable */ /* Guard time and prescaler register */ @@ -214,6 +208,12 @@ #define USART_GTPR_GT_SHIFT (8) /* Bits 8-15: Guard time value */ #define USART_GTPR_GT_MASK (0xff << USART_GTPR_GT_SHIFT) +/* Compatibility definitions ********************************************************/ +/* F3 Transmit/Read registers */ + +#define STM32_USART_RDR_OFFSET STM32_USART_DR_OFFSET /* Receive data register */ +#define STM32_USART_TDR_OFFSET STM32_USART_DR_OFFSET /* Transmit data register */ + /************************************************************************************ * Public Types ************************************************************************************/ @@ -226,4 +226,4 @@ * Public Functions ************************************************************************************/ -#endif /* __ARCH_ARM_STC_STM32_CHIP_STM32_UART_H */ +#endif /* __ARCH_ARM_STC_STM32_CHIP_STM32F20XXX_UART_H */ diff --git a/nuttx/arch/arm/src/stm32/chip/stm32f30xxx_uart.h b/nuttx/arch/arm/src/stm32/chip/stm32f30xxx_uart.h new file mode 100644 index 000000000..c6ed0ec9c --- /dev/null +++ b/nuttx/arch/arm/src/stm32/chip/stm32f30xxx_uart.h @@ -0,0 +1,334 @@ +/************************************************************************************ + * arch/arm/src/stm32/chip/stm32f30xxx_uart.h + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ************************************************************************************/ + +#ifndef __ARCH_ARM_STC_STM32_CHIP_STM32F30XXX_UART_H +#define __ARCH_ARM_STC_STM32_CHIP_STM32F30XXX_UART_H + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +#include <nuttx/config.h> + +#include "chip.h" + +/************************************************************************************ + * Pre-processor Definitions + ************************************************************************************/ + +/* Register Offsets *****************************************************************/ + +#define STM32_USART_CR1_OFFSET 0x0000 /* Control register 1 */ +#define STM32_USART_CR2_OFFSET 0x0004 /* Control register 2 */ +#define STM32_USART_CR3_OFFSET 0x0008 /* Control register 3 */ +#define STM32_USART_BRR_OFFSET 0x000c /* Baud Rate Register (32-bits) */ +#define STM32_USART_GTPR_OFFSET 0x0010 /* Guard time and prescaler register */ +#define STM32_USART_RTOR_OFFSET 0x0014 /* Receiver timeout register */ +#define STM32_USART_RQR_OFFSET 0x0018 /* Request register */ +#define STM32_USART_ISR_OFFSET 0x001c /* Interrupt & status register */ +#define STM32_USART_ICR_OFFSET 0x0020 /* Interrupt flag clear register */ +#define STM32_USART_RDR_OFFSET 0x0024 /* Receive data register */ +#define STM32_USART_TDR_OFFSET 0x0028 /* Transmit data register */ + +/* Register Addresses ***************************************************************/ + +#if STM32_NUSART > 0 +# define STM32_USART1_CR1 (STM32_USART1_BASE+STM32_USART_CR1_OFFSET) +# define STM32_USART1_CR2 (STM32_USART1_BASE+STM32_USART_CR2_OFFSET) +# define STM32_USART1_CR3 (STM32_USART1_BASE+STM32_USART_CR3_OFFSET) +# define STM32_USART1_BRR (STM32_USART1_BASE+STM32_USART_BRR_OFFSET) +# define STM32_USART1_GTPR (STM32_USART1_BASE+STM32_USART_GTPR_OFFSET) +# define STM32_USART1_RTOR (STM32_USART1_BASE+STM32_USART_RTOR_OFFSET) +# define STM32_USART1_RQR (STM32_USART1_BASE+STM32_USART_RQR_OFFSET) +# define STM32_USART1_GTPR (STM32_USART1_BASE+STM32_USART_GTPR_OFFSET) +# define STM32_USART1_ISR (STM32_USART1_BASE+STM32_USART_ISR_OFFSET) +# define STM32_USART1_ICR (STM32_USART1_BASE+STM32_USART_ICR_OFFSET) +# define STM32_USART1_RDR (STM32_USART1_BASE+STM32_USART_RDR_OFFSET) +# define STM32_USART1_TDR (STM32_USART1_BASE+STM32_USART_TDR_OFFSET) +#endif + +#if STM32_NUSART > 1 +# define STM32_USART2_CR1 (STM32_USART2_BASE+STM32_USART_CR1_OFFSET) +# define STM32_USART2_CR2 (STM32_USART2_BASE+STM32_USART_CR2_OFFSET) +# define STM32_USART2_CR3 (STM32_USART2_BASE+STM32_USART_CR3_OFFSET) +# define STM32_USART2_BRR (STM32_USART2_BASE+STM32_USART_BRR_OFFSET) +# define STM32_USART2_GTPR (STM32_USART2_BASE+STM32_USART_GTPR_OFFSET) +# define STM32_USART2_RTOR (STM32_USART2_BASE+STM32_USART_RTOR_OFFSET) +# define STM32_USART2_RQR (STM32_USART2_BASE+STM32_USART_RQR_OFFSET) +# define STM32_USART2_GTPR (STM32_USART2_BASE+STM32_USART_GTPR_OFFSET) +# define STM32_USART2_ISR (STM32_USART2_BASE+STM32_USART_ISR_OFFSET) +# define STM32_USART2_ICR (STM32_USART2_BASE+STM32_USART_ICR_OFFSET) +# define STM32_USART2_RDR (STM32_USART2_BASE+STM32_USART_RDR_OFFSET) +# define STM32_USART2_TDR (STM32_USART2_BASE+STM32_USART_TDR_OFFSET) +#endif + +#if STM32_NUSART > 2 +# define STM32_USART3_CR1 (STM32_USART3_BASE+STM32_USART_CR1_OFFSET) +# define STM32_USART3_CR2 (STM32_USART3_BASE+STM32_USART_CR2_OFFSET) +# define STM32_USART3_CR3 (STM32_USART3_BASE+STM32_USART_CR3_OFFSET) +# define STM32_USART3_BRR (STM32_USART3_BASE+STM32_USART_BRR_OFFSET) +# define STM32_USART3_GTPR (STM32_USART3_BASE+STM32_USART_GTPR_OFFSET) +# define STM32_USART3_RTOR (STM32_USART3_BASE+STM32_USART_RTOR_OFFSET) +# define STM32_USART3_RQR (STM32_USART3_BASE+STM32_USART_RQR_OFFSET) +# define STM32_USART3_GTPR (STM32_USART3_BASE+STM32_USART_GTPR_OFFSET) +# define STM32_USART3_ISR (STM32_USART3_BASE+STM32_USART_ISR_OFFSET) +# define STM32_USART3_ICR (STM32_USART3_BASE+STM32_USART_ICR_OFFSET) +# define STM32_USART3_RDR (STM32_USART3_BASE+STM32_USART_RDR_OFFSET) +# define STM32_USART3_TDR (STM32_USART3_BASE+STM32_USART_TDR_OFFSET) +#endif + +#if STM32_NUSART > 3 +# define STM32_UART4_CR1 (STM32_UART4_BASE+STM32_USART_CR1_OFFSET) +# define STM32_UART4_CR2 (STM32_UART4_BASE+STM32_USART_CR2_OFFSET) +# define STM32_UART4_CR3 (STM32_UART4_BASE+STM32_USART_CR3_OFFSET) +# define STM32_UART4_BRR (STM32_UART4_BASE+STM32_USART_BRR_OFFSET) +# define STM32_UART4_GTPR (STM32_UART4_BASE+STM32_USART_GTPR_OFFSET) +# define STM32_UART4_RTOR (STM32_UART4_BASE+STM32_USART_RTOR_OFFSET) +# define STM32_UART4_RQR (STM32_UART4_BASE+STM32_USART_RQR_OFFSET) +# define STM32_UART4_GTPR (STM32_UART4_BASE+STM32_USART_GTPR_OFFSET) +# define STM32_UART4_ISR (STM32_UART4_BASE+STM32_USART_ISR_OFFSET) +# define STM32_UART4_ICR (STM32_UART4_BASE+STM32_USART_ICR_OFFSET) +# define STM32_UART4_RDR (STM32_UART4_BASE+STM32_USART_RDR_OFFSET) +# define STM32_UART4_TDR (STM32_UART4_BASE+STM32_USART_TDR_OFFSET) +#endif + +#if STM32_NUSART > 4 +# define STM32_UART5_CR1 (STM32_UART5_BASE+STM32_USART_CR1_OFFSET) +# define STM32_UART5_CR2 (STM32_UART5_BASE+STM32_USART_CR2_OFFSET) +# define STM32_UART5_CR3 (STM32_UART5_BASE+STM32_USART_CR3_OFFSET) +# define STM32_UART5_BRR (STM32_UART5_BASE+STM32_USART_BRR_OFFSET) +# define STM32_UART5_GTPR (STM32_UART5_BASE+STM32_USART_GTPR_OFFSET) +# define STM32_UART5_RTOR (STM32_UART5_BASE+STM32_USART_RTOR_OFFSET) +# define STM32_UART5_RQR (STM32_UART5_BASE+STM32_USART_RQR_OFFSET) +# define STM32_UART5_GTPR (STM32_UART5_BASE+STM32_USART_GTPR_OFFSET) +# define STM32_UART5_ISR (STM32_UART5_BASE+STM32_USART_ISR_OFFSET) +# define STM32_UART5_ICR (STM32_UART5_BASE+STM32_USART_ICR_OFFSET) +# define STM32_UART5_RDR (STM32_UART5_BASE+STM32_USART_RDR_OFFSET) +# define STM32_UART5_TDR (STM32_UART5_BASE+STM32_USART_TDR_OFFSET) +#endif + +/* Register Bitfield Definitions ****************************************************/ + +/* Control register 1 */ + +#define USART_CR1_UE (1 << 0) /* Bit 0: USART enable */ +#define USART_CR1_UESM (1 << 1) /* Bit 1: USART enable in Stop mode */ +#define USART_CR1_RE (1 << 2) /* Bit 2: Receiver Enable */ +#define USART_CR1_TE (1 << 3) /* Bit 3: Transmitter Enable */ +#define USART_CR1_IDLEIE (1 << 4) /* Bit 4: IDLE Interrupt Enable */ +#define USART_CR1_RXNEIE (1 << 5) /* Bit 5: RXNE Interrupt Enable */ +#define USART_CR1_TCIE (1 << 6) /* Bit 6: Transmission Complete Interrupt Enable */ +#define USART_CR1_TXEIE (1 << 7) /* Bit 7: TXE Interrupt Enable */ +#define USART_CR1_PEIE (1 << 8) /* Bit 8: PE Interrupt Enable */ + +#define USART_CR1_PS (1 << 9) /* Bit 9: Parity Selection */ +#define USART_CR1_PCE (1 << 10) /* Bit 10: Parity Control Enable */ +#define USART_CR1_WAKE (1 << 11) /* Bit 11: Receiver wakeup method */ +#define USART_CR1_M (1 << 12) /* Bit 12: Word length */ +#define USART_CR1_MME (1 << 13) /* Bit 13: Mute mode enable */ +#define USART_CR1_CMIE (1 << 14) /* Bit 14: Character match interrupt enable */ +#define USART_CR1_OVER8 (1 << 15) /* Bit 15: Oversampling mode */ +#define USART_CR1_DEDT_SHIFT (16) /* Bits 16-20: Driver Enable deassertion time */ +#define USART_CR1_DEDT_MASK (31 << USART_CR1_DEDT_SHIFT) +#define USART_CR1_DEAT_SHIFT (21) /* Bits 21-25: Driver Enable assertion time */ +#define USART_CR1_DEAT_MASK (31 << USART_CR1_DEAT_SHIFT) +#define USART_CR1_RTOIE (1 << 26) /* Bit 26: Receiver timeout interrupt enable */ +#define USART_CR1_EOBIE (1 << 27) /* Bit 27: End of Block interrupt enable */ + +#define USART_CR1_ALLINTS (USART_CR1_IDLEIE|USART_CR1_RXNEIE|USART_CR1_TCIE|USART_CR1_TXEIE|USART_CR1_PEIE|USART_CR1_CMIE|USART_CR1_RTOIE|USART_CR1_EOBIE) + +/* Control register 2 */ + +#define USART_CR2_ADDM7 (1 << 4) /* Bit 4: :7-/4-bit Address Detection */ +#define USART_CR2_LBDL (1 << 5) /* Bit 5: LIN Break Detection Length */ +#define USART_CR2_LBDIE (1 << 6) /* Bit 6: LIN Break Detection Interrupt Enable */ +#define USART_CR2_LBCL (1 << 8) /* Bit 8: Last Bit Clock pulse */ +#define USART_CR2_CPHA (1 << 9) /* Bit 9: Clock Phase */ +#define USART_CR2_CPOL (1 << 10) /* Bit 10: Clock Polarity */ +#define USART_CR2_CLKEN (1 << 11) /* Bit 11: Clock Enable */ +#define USART_CR2_STOP_SHIFT (12) /* Bits 13-12: STOP bits */ +#define USART_CR2_STOP_MASK (3 << USART_CR2_STOP_SHIFT) +# define USART_CR2_STOP1 (0 << USART_CR2_STOP_SHIFT) /* 00: 1 Stop bit */ +# define USART_CR2_STOP2 (2 << USART_CR2_STOP_SHIFT) /* 10: 2 Stop bits */ +# define USART_CR2_STOP1p5 (3 << USART_CR2_STOP_SHIFT) /* 11: 1.5 Stop bit */ +#define USART_CR2_LINEN (1 << 14) /* Bit 14: LIN mode enable */ +#define USART_CR2_RXINV (1 << 16) /* Bit 16: RX pin active level inversion */ +#define USART_CR2_TXINV (1 << 17) /* Bit 17: TX pin active level inversion */ +#define USART_CR2_DATAINV (1 << 18) /* Bit 18: Binary data inversion */ +#define USART_CR2_MSBFIRST (1 << 19) /* Bit 19: Most significant bit first */ +#define USART_CR2_ABREN (1 << 20) /* Bit 20: Auto baud rate enable */ +#define USART_CR2_ABRMOD_SHIFT (21) /* Bits 21-22: Auto baud rate mode */ +#define USART_CR2_ABRMOD_MASK (3 << USART_CR2_ABRMOD_SHIFT) +# define USART_CR2_ABRMOD_START (0 << USART_CR2_ABRMOD_SHIFT) /* Start bit */ +# define USART_CR2_ABRMOD_FALL (1 << USART_CR2_ABRMOD_SHIFT) /* Falling edge measurement */ +# define USART_CR2_ABRMOD_7F (2 << USART_CR2_ABRMOD_SHIFT) /* 0x7F frame detection */ +# define USART_CR2_ABRMOD_55 (3 << USART_CR2_ABRMOD_SHIFT) /* 0x55 frame detection */ +#define USART_CR2_RTOEN (1 << 23) /* Bit 23: Receiver timeout enable */ +#define USART_CR2_ADD4L_SHIFT (24) /* Bits 24-17: Address[3:0]:of the USART node */ +#define USART_CR2_ADD4L_MASK (15 << USART_CR2_ADD4_SHIFT) +#define USART_CR2_ADD4H_SHIFT (28) /* Bits 28-31: Address[4:0] of the USART node */ +#define USART_CR2_ADD4H_MASK (15 << USART_CR2_ADD4_SHIFT) +#define USART_CR2_ADD8_SHIFT (24) /* Bits 24-31: Address[7:0] of the USART node */ +#define USART_CR2_ADD8_MASK (255 << USART_CR2_ADD8_SHIFT) + +/* Control register 3 */ + +#define USART_CR3_EIE (1 << 0) /* Bit 0: Error Interrupt Enable */ +#define USART_CR3_IREN (1 << 1) /* Bit 1: IrDA mode Enable */ +#define USART_CR3_IRLP (1 << 2) /* Bit 2: IrDA Low-Power */ +#define USART_CR3_HDSEL (1 << 3) /* Bit 3: Half-Duplex Selection */ +#define USART_CR3_NACK (1 << 4) /* Bit 4: Smartcard NACK enable */ +#define USART_CR3_SCEN (1 << 5) /* Bit 5: Smartcard mode enable */ +#define USART_CR3_DMAR (1 << 6) /* Bit 6: DMA Enable Receiver */ +#define USART_CR3_DMAT (1 << 7) /* Bit 7: DMA Enable Transmitter */ +#define USART_CR3_RTSE (1 << 8) /* Bit 8: RTS Enable */ +#define USART_CR3_CTSE (1 << 9) /* Bit 9: CTS Enable */ +#define USART_CR3_CTSIE (1 << 10) /* Bit 10: CTS Interrupt Enable */ +#define USART_CR1_ONEBIT (1 << 11) /* Bit 11: One sample bit method enable */ +#define USART_CR1_OVRDIS (1 << 12) /* Bit 12: Overrun Disable */ +#define USART_CR1_DDRE (1 << 13) /* Bit 13: DMA Disable on Reception Error */ +#define USART_CR1_DEM (1 << 14) /* Bit 14: Driver enable mode */ +#define USART_CR1_DEP (1 << 15) /* Bit 15: Driver enable polarity selection */ +#define USART_CR1_SCARCNT_SHIFT (17) /* Bit 17-19: Smartcard auto-retry count */ +#define USART_CR1_SCARCNT_MASK (7 << USART_CR1_SCARCNT_SHIFT) +#define USART_CR1_WUS_SHIFT (20) /* Bit 20-21: Wakeup from Stop mode interrupt */ +#define USART_CR1_WUS_MASK (3 << USART_CR1_WUS_SHIFT) +# define USART_CR1_WUS_ADDRMAT (0 << USART_CR1_WUS_SHIFT) /* Active on address match */ +# define USART_CR1_WUS_STARTBIT (2 << USART_CR1_WUS_SHIFT) /* Active on Start bit */ +# define USART_CR1_WUS_RXNE (3 << USART_CR1_WUS_SHIFT) /* Active on RXNE */ +#define USART_CR1_WUFIE (1 << 22) /* Bit 22: Wakeup from Stop mode interrupt enable */ + +/* Baud Rate Register */ + +#define USART_BRR_SHIFT (0) /* Bits 0-15: USARTDIV[15:0] OVER8=0*/ +#define USART_BRR_MASK (0xffff << USART_BRR_SHIFT) +#define USART_BRR_0_3_SHIFT (0) /* Bits 0-2: USARTDIV[3:0] OVER8=1 */ +#define USART_BRR_0_3_MASK (0x0fff << USART_BRR_0_3_SHIFT) +#define USART_BRR_4_7_SHIFT (0) /* Bits 4-15: USARTDIV[15:4] OVER8=1*/ +#define USART_BRR_4_7_MASK (0xffff << USART_BRR_4_7_SHIFT) + +/* Guard time and prescaler register */ + +#define USART_GTPR_PSC_SHIFT (0) /* Bits 0-7: Prescaler value */ +#define USART_GTPR_PSC_MASK (0xff << USART_GTPR_PSC_SHIFT) +#define USART_GTPR_GT_SHIFT (8) /* Bits 8-15: Guard time value */ +#define USART_GTPR_GT_MASK (0xff << USART_GTPR_GT_SHIFT) + +/* Receiver timeout register */ + +#define USART_RTOR_RTO_SHIFT (0) /* Bits 0-23: Receiver timeout value */ +#define USART_RTOR_RTO_MASK (0xffffff << USART_RTOR_RTO_SHIFT) +#define USART_RTOR_BLEN_SHIFT (24) /* Bits 24-31: Block Length */ +#define USART_RTOR_BLEN_MASK (0xff << USART_RTOR_BLEN_SHIFT) + +/* Request register */ + +#define USART_RQR_ABRRQ (1 << 0) /* Bit 0: Auto baud rate request */ +#define USART_RQR_SBKRQ (1 << 1) /* Bit 1: Send break request */ +#define USART_RQR_MMRQ (1 << 2) /* Bit 2: Mute mode request */ +#define USART_RQR_RXFRQ (1 << 3) /* Bit 3: Receive data flush request */ +#define USART_RQR_TXFRQ (1 << 4) /* Bit 4: Transmit data flush request */ + +/* Interrupt & status register */ + +#define USART_ISR_PE (1 << 0) /* Bit 0: Parity error */ +#define USART_ISR_FE (1 << 1) /* Bit 1: Framing error */ +#define USART_ISR_NF (1 << 2) /* Bit 2: Noise detected flag */ +#define USART_ISR_ORE (1 << 3) /* Bit 3: Overrun error */ +#define USART_ISR_IDLE (1 << 4) /* Bit 4: Idle line detected */ +#define USART_ISR_RXNE (1 << 5) /* Bit 5: Read data register not empty */ +#define USART_ISR_TC (1 << 6) /* Bit 6: Transmission complete */ +#define USART_ISR_TXE (1 << 7) /* Bit 7: Transmit data register empty */ +#define USART_ISR_LBDF (1 << 8) /* Bit 8: LIN break detection flag */ +#define USART_ISR_CTSIF (1 << 9) /* Bit 9: CTS interrupt flag */ +#define USART_ISR_CTS (1 << 10) /* Bit 10: CTS flag */ +#define USART_ISR_RTOF (1 << 11) /* Bit 11: Receiver timeout */ +#define USART_ISR_EOBF (1 << 12) /* Bit 12: End of block flag */ +#define USART_ISR_ABRE (1 << 14) /* Bit 14: Auto baud rate error */ +#define USART_ISR_ABRF (1 << 15) /* Bit 15: Auto baud rate flag */ +#define USART_ISR_BUSY (1 << 16) /* Bit 16: Busy flag */ +#define USART_ISR_CMF (1 << 17) /* Bit 17: Character match flag */ +#define USART_ISR_SBKF (1 << 18) /* Bit 18: Send break flag */ +#define USART_ISR_ISRRWU (1 << 19) /* Bit 19: Receiver wakeup from Mute mode */ +#define USART_ISR_WUF (1 << 20) /* Bit 20: Wakeup from Stop mode flag */ +#define USART_ISR_TEACK (1 << 21) /* Bit 21: Transmit enable acknowledge flag */ +#define USART_ISR_REACK (1 << 22) /* Bit 22: Receive enable acknowledge flag */ + +#define USART_ISR_ALLBITS (0x007fdfff) + +/* Interrupt flag clear register */ +#define USART_ICR_ +/* Receive data register */ +#define USART_RDR_ +/* Transmit data register */ +#define USART_TDR_ + + +/* Data register */ + +#define USART_DR_SHIFT (0) /* Bits 8:0: Data value */ +#define USART_DR_MASK (0xff << USART_DR_SHIFT) + +/* Compatibility definitions ********************************************************/ +/* F1/F2/F4 Status register */ + +#define STM32_USART_SR_OFFSET STM32_USART_ISR_OFFSET + +#define USART_SR_PE USART_ISR_PE /* Parity Error */ +#define USART_SR_FE USART_ISR_FE /* Framing error */ +#define USART_SR_NE USART_ISR_NF /* Noise detected flag */ +#define USART_SR_ORE USART_ISR_ORE /* Overrun error */ +#define USART_SR_IDLE USART_ISR_IDLE /* IDLE line detected */ +#define USART_SR_RXNE USART_ISR_RXNE /* Read Data Register Not Empty */ +#define USART_SR_TC USART_ISR_TC /* Transmission Complete */ +#define USART_SR_TXE USART_ISR_TXE /* Transmit Data Register Empty */ +#define USART_SR_LBD USART_ISR_LBDF /* LIN Break Detection Flag */ +#define USART_SR_CTS USART_ISR_CTS /* Bit 9: CTS Flag */ + +#define USART_SR_ALLBITS USART_ISR_ALLBITS + +/************************************************************************************ + * Public Types + ************************************************************************************/ + +/************************************************************************************ + * Public Data + ************************************************************************************/ + +/************************************************************************************ + * Public Functions + ************************************************************************************/ + +#endif /* __ARCH_ARM_STC_STM32_CHIP_STM32F30XXX_UART_H */ diff --git a/nuttx/arch/arm/src/stm32/chip/stm32f40xxx_uart.h b/nuttx/arch/arm/src/stm32/chip/stm32f40xxx_uart.h new file mode 100644 index 000000000..e0c22bf6f --- /dev/null +++ b/nuttx/arch/arm/src/stm32/chip/stm32f40xxx_uart.h @@ -0,0 +1,229 @@ +/************************************************************************************ + * arch/arm/src/stm32/chip/stm32f40xxx_uart.h + * + * Copyright (C) 2009, 2011-2014 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ************************************************************************************/ + +#ifndef __ARCH_ARM_STC_STM32_CHIP_STM32F40XXX_UART_H +#define __ARCH_ARM_STC_STM32_CHIP_STM32F40XXX_UART_H + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +#include <nuttx/config.h> + +#include "chip.h" + +/************************************************************************************ + * Pre-processor Definitions + ************************************************************************************/ + +/* Register Offsets *****************************************************************/ + +#define STM32_USART_SR_OFFSET 0x0000 /* Status register (32-bits) */ +#define STM32_USART_DR_OFFSET 0x0004 /* Data register (32-bits) */ +#define STM32_USART_BRR_OFFSET 0x0008 /* Baud Rate Register (32-bits) */ +#define STM32_USART_CR1_OFFSET 0x000c /* Control register 1 (32-bits) */ +#define STM32_USART_CR2_OFFSET 0x0010 /* Control register 2 (32-bits) */ +#define STM32_USART_CR3_OFFSET 0x0014 /* Control register 3 (32-bits) */ +#define STM32_USART_GTPR_OFFSET 0x0018 /* Guard time and prescaler register (32-bits) */ + +/* Register Addresses ***************************************************************/ + +#if STM32_NUSART > 0 +# define STM32_USART1_SR (STM32_USART1_BASE+STM32_USART_SR_OFFSET) +# define STM32_USART1_DR (STM32_USART1_BASE+STM32_USART_DR_OFFSET) +# define STM32_USART1_BRR (STM32_USART1_BASE+STM32_USART_BRR_OFFSET) +# define STM32_USART1_CR1 (STM32_USART1_BASE+STM32_USART_CR1_OFFSET) +# define STM32_USART1_CR2 (STM32_USART1_BASE+STM32_USART_CR2_OFFSET) +# define STM32_USART1_CR3 (STM32_USART1_BASE+STM32_USART_CR3_OFFSET) +# define STM32_USART1_GTPR (STM32_USART1_BASE+STM32_USART_GTPR_OFFSET) +#endif + +#if STM32_NUSART > 1 +# define STM32_USART2_SR (STM32_USART2_BASE+STM32_USART_SR_OFFSET) +# define STM32_USART2_DR (STM32_USART2_BASE+STM32_USART_DR_OFFSET) +# define STM32_USART2_BRR (STM32_USART2_BASE+STM32_USART_BRR_OFFSET) +# define STM32_USART2_CR1 (STM32_USART2_BASE+STM32_USART_CR1_OFFSET) +# define STM32_USART2_CR2 (STM32_USART2_BASE+STM32_USART_CR2_OFFSET) +# define STM32_USART2_CR3 (STM32_USART2_BASE+STM32_USART_CR3_OFFSET) +# define STM32_USART2_GTPR (STM32_USART2_BASE+STM32_USART_GTPR_OFFSET) +#endif + +#if STM32_NUSART > 2 +# define STM32_USART3_SR (STM32_USART3_BASE+STM32_USART_SR_OFFSET) +# define STM32_USART3_DR (STM32_USART3_BASE+STM32_USART_DR_OFFSET) +# define STM32_USART3_BRR (STM32_USART3_BASE+STM32_USART_BRR_OFFSET) +# define STM32_USART3_CR1 (STM32_USART3_BASE+STM32_USART_CR1_OFFSET) +# define STM32_USART3_CR2 (STM32_USART3_BASE+STM32_USART_CR2_OFFSET) +# define STM32_USART3_CR3 (STM32_USART3_BASE+STM32_USART_CR3_OFFSET) +# define STM32_USART3_GTPR (STM32_USART3_BASE+STM32_USART_GTPR_OFFSET) +#endif + +#if STM32_NUSART > 3 +# define STM32_UART4_SR (STM32_UART4_BASE+STM32_USART_SR_OFFSET) +# define STM32_UART4_DR (STM32_UART4_BASE+STM32_USART_DR_OFFSET) +# define STM32_UART4_BRR (STM32_UART4_BASE+STM32_USART_BRR_OFFSET) +# define STM32_UART4_CR1 (STM32_UART4_BASE+STM32_USART_CR1_OFFSET) +# define STM32_UART4_CR2 (STM32_UART4_BASE+STM32_USART_CR2_OFFSET) +# define STM32_UART4_CR3 (STM32_UART4_BASE+STM32_USART_CR3_OFFSET) +#endif + +#if STM32_NUSART > 4 +# define STM32_UART5_SR (STM32_UART5_BASE+STM32_USART_SR_OFFSET) +# define STM32_UART5_DR (STM32_UART5_BASE+STM32_USART_DR_OFFSET) +# define STM32_UART5_BRR (STM32_UART5_BASE+STM32_USART_BRR_OFFSET) +# define STM32_UART5_CR1 (STM32_UART5_BASE+STM32_USART_CR1_OFFSET) +# define STM32_UART5_CR2 (STM32_UART5_BASE+STM32_USART_CR2_OFFSET) +# define STM32_UART5_CR3 (STM32_UART5_BASE+STM32_USART_CR3_OFFSET) +#endif + +#if STM32_NUSART > 5 +# define STM32_USART6_SR (STM32_USART6_BASE+STM32_USART_SR_OFFSET) +# define STM32_USART6_DR (STM32_USART6_BASE+STM32_USART_DR_OFFSET) +# define STM32_USART6_BRR (STM32_USART6_BASE+STM32_USART_BRR_OFFSET) +# define STM32_USART6_CR1 (STM32_USART6_BASE+STM32_USART_CR1_OFFSET) +# define STM32_USART6_CR2 (STM32_USART6_BASE+STM32_USART_CR2_OFFSET) +# define STM32_USART6_CR3 (STM32_USART6_BASE+STM32_USART_CR3_OFFSET) +# define STM32_USART6_GTPR (STM32_USART6_BASE+STM32_USART_GTPR_OFFSET) +#endif + +/* Register Bitfield Definitions ****************************************************/ + +/* Status register */ + +#define USART_SR_PE (1 << 0) /* Bit 0: Parity Error */ +#define USART_SR_FE (1 << 1) /* Bit 1: Framing Error */ +#define USART_SR_NE (1 << 2) /* Bit 2: Noise Error Flag */ +#define USART_SR_ORE (1 << 3) /* Bit 3: OverRun Error */ +#define USART_SR_IDLE (1 << 4) /* Bit 4: IDLE line detected */ +#define USART_SR_RXNE (1 << 5) /* Bit 5: Read Data Register Not Empty */ +#define USART_SR_TC (1 << 6) /* Bit 6: Transmission Complete */ +#define USART_SR_TXE (1 << 7) /* Bit 7: Transmit Data Register Empty */ +#define USART_SR_LBD (1 << 8) /* Bit 8: LIN Break Detection Flag */ +#define USART_SR_CTS (1 << 9) /* Bit 9: CTS Flag */ + +#define USART_SR_ALLBITS (0x03ff) +#define USART_SR_CLRBITS (USART_SR_CTS|USART_SR_LBD) /* Cleared by SW write to SR */ + +/* Data register */ + +#define USART_DR_SHIFT (0) /* Bits 8:0: Data value */ +#define USART_DR_MASK (0xff << USART_DR_SHIFT) + +/* Baud Rate Register */ + +#define USART_BRR_FRAC_SHIFT (0) /* Bits 3-0: fraction of USARTDIV */ +#define USART_BRR_FRAC_MASK (0x0f << USART_BRR_FRAC_SHIFT) +#define USART_BRR_MANT_SHIFT (4) /* Bits 15-4: mantissa of USARTDIV */ +#define USART_BRR_MANT_MASK (0x0fff << USART_BRR_MANT_SHIFT) + +/* Control register 1 */ + +#define USART_CR1_SBK (1 << 0) /* Bit 0: Send Break */ +#define USART_CR1_RWU (1 << 1) /* Bit 1: Receiver wakeup */ +#define USART_CR1_RE (1 << 2) /* Bit 2: Receiver Enable */ +#define USART_CR1_TE (1 << 3) /* Bit 3: Transmitter Enable */ +#define USART_CR1_IDLEIE (1 << 4) /* Bit 4: IDLE Interrupt Enable */ +#define USART_CR1_RXNEIE (1 << 5) /* Bit 5: RXNE Interrupt Enable */ +#define USART_CR1_TCIE (1 << 6) /* Bit 6: Transmission Complete Interrupt Enable */ +#define USART_CR1_TXEIE (1 << 7) /* Bit 7: TXE Interrupt Enable */ +#define USART_CR1_PEIE (1 << 8) /* Bit 8: PE Interrupt Enable */ +#define USART_CR1_PS (1 << 9) /* Bit 9: Parity Selection */ +#define USART_CR1_PCE (1 << 10) /* Bit 10: Parity Control Enable */ +#define USART_CR1_WAKE (1 << 11) /* Bit 11: Wakeup method */ +#define USART_CR1_M (1 << 12) /* Bit 12: word length */ +#define USART_CR1_UE (1 << 13) /* Bit 13: USART Enable */ +#define USART_CR1_OVER8 (1 << 15) /* Bit 15: Oversampling mode */ + +#define USART_CR1_ALLINTS (USART_CR1_IDLEIE|USART_CR1_RXNEIE|USART_CR1_TCIE|USART_CR1_PEIE) + +/* Control register 2 */ + +#define USART_CR2_ADD_SHIFT (0) /* Bits 3-0: Address of the USART node */ +#define USART_CR2_ADD_MASK (0x0f << USART_CR2_ADD_SHIFT) +#define USART_CR2_LBDL (1 << 5) /* Bit 5: LIN Break Detection Length */ +#define USART_CR2_LBDIE (1 << 6) /* Bit 6: LIN Break Detection Interrupt Enable */ +#define USART_CR2_LBCL (1 << 8) /* Bit 8: Last Bit Clock pulse */ +#define USART_CR2_CPHA (1 << 9) /* Bit 9: Clock Phase */ +#define USART_CR2_CPOL (1 << 10) /* Bit 10: Clock Polarity */ +#define USART_CR2_CLKEN (1 << 11) /* Bit 11: Clock Enable */ +#define USART_CR2_STOP_SHIFT (12) /* Bits 13-12: STOP bits */ +#define USART_CR2_STOP_MASK (3 << USART_CR2_STOP_SHIFT) +# define USART_CR2_STOP1 (0 << USART_CR2_STOP_SHIFT) /* 00: 1 Stop bit */ +# define USART_CR2_STOP0p5 (1 << USART_CR2_STOP_SHIFT) /* 01: 0.5 Stop bit */ +# define USART_CR2_STOP2 (2 << USART_CR2_STOP_SHIFT) /* 10: 2 Stop bits */ +# define USART_CR2_STOP1p5 (3 << USART_CR2_STOP_SHIFT) /* 11: 1.5 Stop bit */ +#define USART_CR2_LINEN (1 << 14) /* Bit 14: LIN mode enable */ + +/* Control register 3 */ + +#define USART_CR3_EIE (1 << 0) /* Bit 0: Error Interrupt Enable */ +#define USART_CR3_IREN (1 << 1) /* Bit 1: IrDA mode Enable */ +#define USART_CR3_IRLP (1 << 2) /* Bit 2: IrDA Low-Power */ +#define USART_CR3_HDSEL (1 << 3) /* Bit 3: Half-Duplex Selection */ +#define USART_CR3_NACK (1 << 4) /* Bit 4: Smartcard NACK enable */ +#define USART_CR3_SCEN (1 << 5) /* Bit 5: Smartcard mode enable */ +#define USART_CR3_DMAR (1 << 6) /* Bit 6: DMA Enable Receiver */ +#define USART_CR3_DMAT (1 << 7) /* Bit 7: DMA Enable Transmitter */ +#define USART_CR3_RTSE (1 << 8) /* Bit 8: RTS Enable */ +#define USART_CR3_CTSE (1 << 9) /* Bit 9: CTS Enable */ +#define USART_CR3_CTSIE (1 << 10) /* Bit 10: CTS Interrupt Enable */ +#define USART_CR1_ONEBIT (1 << 11) /* Bit 11: One sample bit method enable */ + +/* Guard time and prescaler register */ + +#define USART_GTPR_PSC_SHIFT (0) /* Bits 0-7: Prescaler value */ +#define USART_GTPR_PSC_MASK (0xff << USART_GTPR_PSC_SHIFT) +#define USART_GTPR_GT_SHIFT (8) /* Bits 8-15: Guard time value */ +#define USART_GTPR_GT_MASK (0xff << USART_GTPR_GT_SHIFT) + +/* Compatibility definitions ********************************************************/ +/* F3 Transmit/Read registers */ + +#define STM32_USART_RDR_OFFSET STM32_USART_DR_OFFSET /* Receive data register */ +#define STM32_USART_TDR_OFFSET STM32_USART_DR_OFFSET /* Transmit data register */ + +/************************************************************************************ + * Public Types + ************************************************************************************/ + +/************************************************************************************ + * Public Data + ************************************************************************************/ + +/************************************************************************************ + * Public Functions + ************************************************************************************/ + +#endif /* __ARCH_ARM_STC_STM32_CHIP_STM32F40XXX_UART_H */ diff --git a/nuttx/arch/arm/src/stm32/stm32_lowputc.c b/nuttx/arch/arm/src/stm32/stm32_lowputc.c index a8dc6aefd..08b0118be 100644 --- a/nuttx/arch/arm/src/stm32/stm32_lowputc.c +++ b/nuttx/arch/arm/src/stm32/stm32_lowputc.c @@ -197,48 +197,89 @@ #define USART_CR3_CLRBITS (USART_CR3_CTSIE|USART_CR3_CTSE|USART_CR3_RTSE|USART_CR3_EIE) #define USART_CR3_SETBITS 0 -/* Calculate USART BAUD rate divider - * - * The baud rate for the receiver and transmitter (Rx and Tx) are both set to - * the same value as programmed in the Mantissa and Fraction values of USARTDIV. - * - * baud = fCK / (16 * usartdiv) - * usartdiv = fCK / (16 * baud) - * - * Where fCK is the input clock to the peripheral (PCLK1 for USART2, 3, 4, 5 - * or PCLK2 for USART1). Example, fCK=72MHz baud=115200, usartdiv=39.0625=39 1/16th; - * - * First calculate: - * - * usartdiv32 = 32 * usartdiv = fCK / (baud/2) - * - * (NOTE: all standard baud values are even so dividing by two does not - * lose precision). Eg. (same fCK and buad), usartdiv32 = 1250 - */ +/* Only the STM32 F3 supports oversampling by 8 */ -#define STM32_USARTDIV32 (STM32_APBCLOCK / (STM32_CONSOLE_BAUD >> 1)) +#undef USE_OVER8 -/* The mantissa is then usartdiv32 / 32: - * - * mantissa = usartdiv32 / 32/ - * - * Eg. usartdiv32=1250, mantissa = 39 - */ +/* Calculate USART BAUD rate divider */ -#define STM32_MANTISSA (STM32_USARTDIV32 >> 5) +#ifdef CONFIG_STM32_STM32F30XX -/* And the fraction: - * - * fraction = (usartdiv32 - mantissa*32 + 1) / 2 - * - * Eg., (1,250 - 39*32 + 1)/2 = 1 (or 0.0625) - */ + /* Baud rate for standard USART (SPI mode included): + * + * In case of oversampling by 16, the equation is: + * baud = fCK / UARTDIV + * UARTDIV = fCK / baud + * + * In case of oversampling by 8, the equation is: + * + * baud = 2 * fCK / UARTDIV + * UARTDIV = 2 * fCK / baud + */ + +# define STM32_USARTDIV8 \ + (((STM32_APBCLOCK << 1) + (STM32_CONSOLE_BAUD >> 1)) / STM32_CONSOLE_BAUD) +# define STM32_USARTDIV16 \ + ((STM32_APBCLOCK + (STM32_CONSOLE_BAUD >> 1)) / STM32_CONSOLE_BAUD) + + /* Use oversamply by 8 only if the divisor is small */ + +# if STM32_USARTDIV8 > 100 +# define STM32_BRR_VALUE STM32_USARTDIV16 +# else +# define USE_OVER8 1 +# define STM32_BRR_VALUE \ + ((STM32_USARTDIV8 && 0xfff0) | ((STM32_USARTDIV8 & 0x000f) >> 1) +# endif -#define STM32_FRACTION ((STM32_USARTDIV32 - (STM32_MANTISSA << 5) + 1) >> 1) +#else + + /* The baud rate for the receiver and transmitter (Rx and Tx) are both set + * to the same value as programmed in the Mantissa and Fraction values of + * USARTDIV. + * + * baud = fCK / (16 * usartdiv) + * usartdiv = fCK / (16 * baud) + * + * Where fCK is the input clock to the peripheral (PCLK1 for USART2, 3, 4, + * 5 or PCLK2 for USART1). Example, fCK=72MHz baud=115200, + * usartdiv=39.0625=39 1/16th; + * + * First calculate: + * + * usartdiv32 = 32 * usartdiv = fCK / (baud/2) + * + * (NOTE: all standard baud values are even so dividing by two does not + * lose precision). Eg. (same fCK and buad), usartdiv32 = 1250 + */ + +# define STM32_USARTDIV32 (STM32_APBCLOCK / (STM32_CONSOLE_BAUD >> 1)) + + /* The mantissa is then usartdiv32 / 32: + * + * mantissa = usartdiv32 / 32/ + * + * Eg. usartdiv32=1250, mantissa = 39 + */ + +# define STM32_MANTISSA (STM32_USARTDIV32 >> 5) + + /* And the fraction: + * + * fraction = (usartdiv32 - mantissa*32 + 1) / 2 + * + * Eg., (1,250 - 39*32 + 1)/2 = 1 (or 0.0625) + */ + +# define STM32_FRACTION \ + ((STM32_USARTDIV32 - (STM32_MANTISSA << 5) + 1) >> 1) /* And, finally, the BRR value is: */ -#define STM32_BRR_VALUE ((STM32_MANTISSA << USART_BRR_MANT_SHIFT) | (STM32_FRACTION << USART_BRR_FRAC_SHIFT)) +# define STM32_BRR_VALUE \ + ((STM32_MANTISSA << USART_BRR_MANT_SHIFT) | \ + (STM32_FRACTION << USART_BRR_FRAC_SHIFT)) +#endif /************************************************************************** * Private Types @@ -284,7 +325,7 @@ void up_lowputc(char ch) /* Then send the character */ - putreg32((uint32_t)ch, STM32_CONSOLE_BASE + STM32_USART_DR_OFFSET); + putreg32((uint32_t)ch, STM32_CONSOLE_BASE + STM32_USART_TDR_OFFSET); #if STM32_CONSOLE_RS485_DIR while ((getreg32(STM32_CONSOLE_BASE + STM32_USART_SR_OFFSET) & USART_SR_TC) == 0); @@ -305,6 +346,7 @@ void up_lowputc(char ch) **************************************************************************/ #if defined(CONFIG_STM32_STM32F10XX) + void stm32_lowsetup(void) { #if defined(HAVE_UART) @@ -423,6 +465,14 @@ void stm32_lowsetup(void) putreg32(STM32_BRR_VALUE, STM32_CONSOLE_BASE + STM32_USART_BRR_OFFSET); + /* Select oversampling by 8 */ + +#ifdef USE_OVER8 + cr = getreg32(STM32_CONSOLE_BASE + STM32_USART_CR1_OFFSET); + cr |= USART_CR1_OVER8; + putreg32(cr, STM32_CONSOLE_BASE + STM32_USART_CR1_OFFSET); +#endif + /* Enable Rx, Tx, and the USART */ cr = getreg32(STM32_CONSOLE_BASE + STM32_USART_CR1_OFFSET); @@ -431,7 +481,9 @@ void stm32_lowsetup(void) #endif #endif /* HAVE_UART */ } + #elif defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F30XX) || defined(CONFIG_STM32_STM32F40XX) + void stm32_lowsetup(void) { #if defined(HAVE_UART) @@ -492,6 +544,7 @@ void stm32_lowsetup(void) #endif #endif /* HAVE_UART */ } + #else # error "Unsupported STM32 chip" #endif diff --git a/nuttx/arch/arm/src/stm32/stm32_uart.h b/nuttx/arch/arm/src/stm32/stm32_uart.h index a26ea2009..2b6adaaa6 100644 --- a/nuttx/arch/arm/src/stm32/stm32_uart.h +++ b/nuttx/arch/arm/src/stm32/stm32_uart.h @@ -43,7 +43,18 @@ #include <nuttx/config.h> #include "chip.h" -#include "chip/stm32_uart.h" + +#if defined(CONFIG_STM32_STM32F10XX) +# include "chip/stm32f10xxx_uart.h" +#elif defined(CONFIG_STM32_STM32F20XX) +# include "chip/stm32f20xxx_uart.h" +#elif defined(CONFIG_STM32_STM32F30XX) +# include "chip/stm32f30xxx_uart.h" +#elif defined(CONFIG_STM32_STM32F40XX) +# include "chip/stm32f40xxx_uart.h" +#else +# error "Unsupported STM32 memory map" +#endif /************************************************************************************ * Pre-processor Definitions diff --git a/nuttx/arch/arm/src/stm32/stm32f30xxx_rcc.c b/nuttx/arch/arm/src/stm32/stm32f30xxx_rcc.c index 399363b9e..f272217a3 100644 --- a/nuttx/arch/arm/src/stm32/stm32f30xxx_rcc.c +++ b/nuttx/arch/arm/src/stm32/stm32f30xxx_rcc.c @@ -122,7 +122,8 @@ static inline void rcc_enableahb(void) regval = RCC_AHBENR_FLITFEN | RCC_AHBENR_SRAMEN; - /* Enable GPIOA, GPIOB, ... and AFIO clocks */ + /* Enable GPIO PORTA, PORTB, ... PORTF */ + regval |= (RCC_AHBENR_IOPAEN | RCC_AHBENR_IOPBEN | RCC_AHBENR_IOPCEN | RCC_AHBENR_IOPDEN | RCC_AHBENR_IOPEEN | RCC_AHBENR_IOPFEN); |