ea6d73f140
1. Upgrade Cortex driver library (CMSIS -> CMSIS & Device): version 2.3.2 -> 3.0.1 & 3.0.0 - Remove "bsp/efm32/Libraries/CMSIS/Lib/ARM", "bsp/efm32/Libraries/CMSIS/Lib/G++" and "bsp/efm32/Libraries/CMSIS/SVD" to save space 2. Upgrade EFM32 driver libraries (efm32lib -> emlib): version 2.3.2 -> 3.0.0 - Remove "bsp/efm32/Libraries/Device/EnergyMicro/EFM32LG" and "bsp/efm32/Libraries/Device/EnergyMicro/EFM32TG" to save space 3. Upgrade EFM32GG_DK3750 development kit driver library: version 1.2.2 -> 2.0.1 4. Upgrade EFM32_Gxxx_DK development kit driver library: version 1.7.3 -> 2.0.1 5. Add energy management unit driver and test code 6. Modify linker script and related code to compatible with new version of libraries 7. Change EFM32 branch version number to 1.0 8. Add photo frame demo application git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2122 bbd45198-f89e-11dd-88c7-29a3b14d5316
261 lines
9.5 KiB
C
261 lines
9.5 KiB
C
/***************************************************************************//**
|
|
* @file
|
|
* @brief Low Energy Universal Asynchronous Receiver/Transmitter (LEUART)
|
|
* peripheral API
|
|
* @author Energy Micro AS
|
|
* @version 3.0.0
|
|
*******************************************************************************
|
|
* @section License
|
|
* <b>(C) Copyright 2012 Energy Micro AS, http://www.energymicro.com</b>
|
|
*******************************************************************************
|
|
*
|
|
* Permission is granted to anyone to use this software for any purpose,
|
|
* including commercial applications, and to alter it and redistribute it
|
|
* freely, subject to the following restrictions:
|
|
*
|
|
* 1. The origin of this software must not be misrepresented; you must not
|
|
* claim that you wrote the original software.
|
|
* 2. Altered source versions must be plainly marked as such, and must not be
|
|
* misrepresented as being the original software.
|
|
* 3. This notice may not be removed or altered from any source distribution.
|
|
*
|
|
* DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Energy Micro AS has no
|
|
* obligation to support this Software. Energy Micro AS is providing the
|
|
* Software "AS IS", with no express or implied warranties of any kind,
|
|
* including, but not limited to, any implied warranties of merchantability
|
|
* or fitness for any particular purpose or warranties against infringement
|
|
* of any proprietary rights of a third party.
|
|
*
|
|
* Energy Micro AS will not be liable for any consequential, incidental, or
|
|
* special damages, or any other relief, or for any claim by any third party,
|
|
* arising from your use of this Software.
|
|
*
|
|
******************************************************************************/
|
|
#ifndef __EM_LEUART_H
|
|
#define __EM_LEUART_H
|
|
|
|
#include <stdbool.h>
|
|
#include "em_part.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/***************************************************************************//**
|
|
* @addtogroup EM_Library
|
|
* @{
|
|
******************************************************************************/
|
|
|
|
/***************************************************************************//**
|
|
* @addtogroup LEUART
|
|
* @{
|
|
******************************************************************************/
|
|
|
|
/*******************************************************************************
|
|
******************************** ENUMS ************************************
|
|
******************************************************************************/
|
|
|
|
/** Databit selection. */
|
|
typedef enum
|
|
{
|
|
leuartDatabits8 = LEUART_CTRL_DATABITS_EIGHT, /**< 8 databits. */
|
|
leuartDatabits9 = LEUART_CTRL_DATABITS_NINE /**< 9 databits. */
|
|
} LEUART_Databits_TypeDef;
|
|
|
|
|
|
/** Enable selection. */
|
|
typedef enum
|
|
{
|
|
/** Disable both receiver and transmitter. */
|
|
leuartDisable = 0x0,
|
|
|
|
/** Enable receiver only, transmitter disabled. */
|
|
leuartEnableRx = LEUART_CMD_RXEN,
|
|
|
|
/** Enable transmitter only, receiver disabled. */
|
|
leuartEnableTx = LEUART_CMD_TXEN,
|
|
|
|
/** Enable both receiver and transmitter. */
|
|
leuartEnable = (LEUART_CMD_RXEN | LEUART_CMD_TXEN)
|
|
} LEUART_Enable_TypeDef;
|
|
|
|
|
|
/** Parity selection. */
|
|
typedef enum
|
|
{
|
|
leuartNoParity = LEUART_CTRL_PARITY_NONE, /**< No parity. */
|
|
leuartEvenParity = LEUART_CTRL_PARITY_EVEN, /**< Even parity. */
|
|
leuartOddParity = LEUART_CTRL_PARITY_ODD /**< Odd parity. */
|
|
} LEUART_Parity_TypeDef;
|
|
|
|
|
|
/** Stopbits selection. */
|
|
typedef enum
|
|
{
|
|
leuartStopbits1 = LEUART_CTRL_STOPBITS_ONE, /**< 1 stopbits. */
|
|
leuartStopbits2 = LEUART_CTRL_STOPBITS_TWO /**< 2 stopbits. */
|
|
} LEUART_Stopbits_TypeDef;
|
|
|
|
|
|
/*******************************************************************************
|
|
******************************* STRUCTS ***********************************
|
|
******************************************************************************/
|
|
|
|
/** Init structure. */
|
|
typedef struct
|
|
{
|
|
/** Specifies whether TX and/or RX shall be enabled when init completed. */
|
|
LEUART_Enable_TypeDef enable;
|
|
|
|
/**
|
|
* LEUART reference clock assumed when configuring baudrate setup. Set
|
|
* it to 0 if currently configurated reference clock shall be used.
|
|
*/
|
|
uint32_t refFreq;
|
|
|
|
/** Desired baudrate. */
|
|
uint32_t baudrate;
|
|
|
|
/** Number of databits in frame. */
|
|
LEUART_Databits_TypeDef databits;
|
|
|
|
/** Parity mode to use. */
|
|
LEUART_Parity_TypeDef parity;
|
|
|
|
/** Number of stopbits to use. */
|
|
LEUART_Stopbits_TypeDef stopbits;
|
|
} LEUART_Init_TypeDef;
|
|
|
|
/** Default config for LEUART init structure. */
|
|
#define LEUART_INIT_DEFAULT \
|
|
{ leuartEnable, /* Enable RX/TX when init completed. */ \
|
|
0, /* Use current configured reference clock for configuring baudrate. */ \
|
|
9600, /* 9600 bits/s. */ \
|
|
leuartDatabits8, /* 8 databits. */ \
|
|
leuartNoParity, /* No parity. */ \
|
|
leuartStopbits1 /* 1 stopbit. */ \
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
***************************** PROTOTYPES **********************************
|
|
******************************************************************************/
|
|
|
|
uint32_t LEUART_BaudrateCalc(uint32_t refFreq, uint32_t clkdiv);
|
|
uint32_t LEUART_BaudrateGet(LEUART_TypeDef *leuart);
|
|
void LEUART_BaudrateSet(LEUART_TypeDef *leuart,
|
|
uint32_t refFreq,
|
|
uint32_t baudrate);
|
|
void LEUART_Enable(LEUART_TypeDef *leuart, LEUART_Enable_TypeDef enable);
|
|
void LEUART_FreezeEnable(LEUART_TypeDef *leuart, bool enable);
|
|
void LEUART_Init(LEUART_TypeDef *leuart, LEUART_Init_TypeDef *init);
|
|
|
|
|
|
/***************************************************************************//**
|
|
* @brief
|
|
* Clear one or more pending LEUART interrupts.
|
|
*
|
|
* @param[in] leuart
|
|
* Pointer to LEUART peripheral register block.
|
|
*
|
|
* @param[in] flags
|
|
* Pending LEUART interrupt source to clear. Use a bitwise logic OR
|
|
* combination of valid interrupt flags for the LEUART module (LEUART_IF_nnn).
|
|
******************************************************************************/
|
|
__STATIC_INLINE void LEUART_IntClear(LEUART_TypeDef *leuart, uint32_t flags)
|
|
{
|
|
leuart->IFC = flags;
|
|
}
|
|
|
|
|
|
/***************************************************************************//**
|
|
* @brief
|
|
* Disable one or more LEUART interrupts.
|
|
*
|
|
* @param[in] leuart
|
|
* Pointer to LEUART peripheral register block.
|
|
*
|
|
* @param[in] flags
|
|
* LEUART interrupt sources to disable. Use a bitwise logic OR combination of
|
|
* valid interrupt flags for the LEUART module (LEUART_IF_nnn).
|
|
******************************************************************************/
|
|
__STATIC_INLINE void LEUART_IntDisable(LEUART_TypeDef *leuart, uint32_t flags)
|
|
{
|
|
leuart->IEN &= ~(flags);
|
|
}
|
|
|
|
|
|
/***************************************************************************//**
|
|
* @brief
|
|
* Enable one or more LEUART interrupts.
|
|
*
|
|
* @note
|
|
* Depending on the use, a pending interrupt may already be set prior to
|
|
* enabling the interrupt. Consider using LEUART_IntClear() prior to enabling
|
|
* if such a pending interrupt should be ignored.
|
|
*
|
|
* @param[in] leuart
|
|
* Pointer to LEUART peripheral register block.
|
|
*
|
|
* @param[in] flags
|
|
* LEUART interrupt sources to enable. Use a bitwise logic OR combination of
|
|
* valid interrupt flags for the LEUART module (LEUART_IF_nnn).
|
|
******************************************************************************/
|
|
__STATIC_INLINE void LEUART_IntEnable(LEUART_TypeDef *leuart, uint32_t flags)
|
|
{
|
|
leuart->IEN |= flags;
|
|
}
|
|
|
|
|
|
/***************************************************************************//**
|
|
* @brief
|
|
* Get pending LEUART interrupt flags.
|
|
*
|
|
* @note
|
|
* The event bits are not cleared by the use of this function.
|
|
*
|
|
* @param[in] leuart
|
|
* Pointer to LEUART peripheral register block.
|
|
*
|
|
* @return
|
|
* LEUART interrupt sources pending. A bitwise logic OR combination of valid
|
|
* interrupt flags for the LEUART module (LEUART_IF_nnn).
|
|
******************************************************************************/
|
|
__STATIC_INLINE uint32_t LEUART_IntGet(LEUART_TypeDef *leuart)
|
|
{
|
|
return(leuart->IF);
|
|
}
|
|
|
|
|
|
/***************************************************************************//**
|
|
* @brief
|
|
* Set one or more pending LEUART interrupts from SW.
|
|
*
|
|
* @param[in] leuart
|
|
* Pointer to LEUART peripheral register block.
|
|
*
|
|
* @param[in] flags
|
|
* LEUART interrupt sources to set to pending. Use a bitwise logic OR
|
|
* combination of valid interrupt flags for the LEUART module (LEUART_IF_nnn).
|
|
******************************************************************************/
|
|
__STATIC_INLINE void LEUART_IntSet(LEUART_TypeDef *leuart, uint32_t flags)
|
|
{
|
|
leuart->IFS = flags;
|
|
}
|
|
|
|
void LEUART_Reset(LEUART_TypeDef *leuart);
|
|
uint8_t LEUART_Rx(LEUART_TypeDef *leuart);
|
|
uint16_t LEUART_RxExt(LEUART_TypeDef *leuart);
|
|
void LEUART_Tx(LEUART_TypeDef *leuart, uint8_t data);
|
|
void LEUART_TxExt(LEUART_TypeDef *leuart, uint16_t data);
|
|
|
|
|
|
/** @} (end addtogroup LEUART) */
|
|
/** @} (end addtogroup EM_Library) */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __EM_LEUART_H */
|