资源简介
该源码文章地址:https://www.cnblogs.com/lifexy/p/7518488.html ,介绍:使用DMA,无需CPU中断便能实现接收串口数据
代码片段和文件信息
/**************************************************************************//**
* @file core_cm3.c
* @brief CMSIS Cortex-M3 Core Peripheral Access layer Source File
* @version V1.30
* @date 30. October 2009
*
* @note
* Copyright (C) 2009 ARM Limited. All rights reserved.
*
* @par
* ARM Limited (ARM) is supplying this software for use with Cortex-M
* processor based microcontrollers. This file can be freely distributed
* within development tools that are supporting such ARM based processors.
*
* @par
* THIS SOFTWARE IS PROVIDED “AS IS“. NO WARRANTIES WHETHER EXPRESS IMPLIED
* OR STATUTORY INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
* ARM SHALL NOT IN ANY CIRCUMSTANCES BE LIABLE FOR SPECIAL INCIDENTAL OR
* CONSEQUENTIAL DAMAGES FOR ANY REASON WHATSOEVER.
*
******************************************************************************/
#include
/* define compiler specific symbols */
#if defined ( __CC_ARM )
#define __ASM __asm /*!< asm keyword for ARM Compiler */
#define __INLINE __inline /*!< inline keyword for ARM Compiler */
#elif defined ( __ICCARM__ )
#define __ASM __asm /*!< asm keyword for IAR Compiler */
#define __INLINE inline /*!< inline keyword for IAR Compiler. Only avaiable in High optimization mode! */
#elif defined ( __GNUC__ )
#define __ASM __asm /*!< asm keyword for GNU Compiler */
#define __INLINE inline /*!< inline keyword for GNU Compiler */
#elif defined ( __TASKING__ )
#define __ASM __asm /*!< asm keyword for TASKING Compiler */
#define __INLINE inline /*!< inline keyword for TASKING Compiler */
#endif
/* ################### Compiler specific Intrinsics ########################### */
#if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/
/* ARM armcc specific functions */
/**
* @brief Return the Process Stack Pointer
*
* @return ProcessStackPointer
*
* Return the actual process stack pointer
*/
__ASM uint32_t __get_PSP(void)
{
mrs r0 psp
bx lr
}
/**
* @brief Set the Process Stack Pointer
*
* @param topOfProcStack Process Stack Pointer
*
* Assign the value ProcessStackPointer to the MSP
* (process stack pointer) Cortex processor register
*/
__ASM void __set_PSP(uint32_t topOfProcStack)
{
msr psp r0
bx lr
}
/**
* @brief Return the Main Stack Pointer
*
* @return Main Stack Pointer
*
* Return the curren
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
目录 0 2018-07-10 10:34 dma+串口接收\
目录 0 2018-07-10 10:34 dma+串口接收\CORE\
文件 17273 2010-06-07 10:25 dma+串口接收\CORE\core_cm3.c
文件 85714 2011-02-09 14:59 dma+串口接收\CORE\core_cm3.h
文件 15503 2011-03-10 10:52 dma+串口接收\CORE\startup_stm32f10x_hd.s
目录 0 2018-07-10 10:34 dma+串口接收\HARDWARE\
目录 0 2020-06-22 17:19 dma+串口接收\HARDWARE\DMA\
文件 2008 2020-06-22 17:19 dma+串口接收\HARDWARE\DMA\dma.c
文件 259 2018-04-02 23:37 dma+串口接收\HARDWARE\DMA\dma.h
目录 0 2018-07-10 10:34 dma+串口接收\HARDWARE\KEY\
文件 1355 2018-04-02 23:37 dma+串口接收\HARDWARE\KEY\key.c
文件 716 2018-04-02 23:37 dma+串口接收\HARDWARE\KEY\key.h
目录 0 2018-07-10 10:34 dma+串口接收\HARDWARE\LCD\
文件 35016 2015-03-13 14:54 dma+串口接收\HARDWARE\LCD\font.h
文件 85363 2015-04-24 11:50 dma+串口接收\HARDWARE\LCD\lcd.c
文件 7529 2015-04-24 11:48 dma+串口接收\HARDWARE\LCD\lcd.h
目录 0 2018-07-10 10:34 dma+串口接收\HARDWARE\LED\
文件 825 2018-04-02 23:37 dma+串口接收\HARDWARE\LED\led.c
文件 171 2018-04-02 23:37 dma+串口接收\HARDWARE\LED\led.h
目录 0 2020-06-22 17:30 dma+串口接收\OBJ\
文件 315720 2020-06-22 17:30 dma+串口接收\OBJ\DMA.axf
文件 2457 2020-06-22 17:30 dma+串口接收\OBJ\DMA.build_log.htm
文件 17458 2020-06-22 17:30 dma+串口接收\OBJ\DMA.hex
文件 61876 2020-06-22 17:30 dma+串口接收\OBJ\DMA.htm
文件 596 2020-06-22 17:30 dma+串口接收\OBJ\DMA.lnp
文件 479 2017-08-24 08:38 dma+串口接收\OBJ\DMA.sct
文件 33476 2020-06-22 17:30 dma+串口接收\OBJ\DMA_DMA.dep
文件 3939 2020-06-22 17:30 dma+串口接收\OBJ\core_cm3.crf
文件 101 2020-06-22 17:30 dma+串口接收\OBJ\core_cm3.d
文件 11240 2020-06-22 17:30 dma+串口接收\OBJ\core_cm3.o
文件 349940 2020-06-22 17:30 dma+串口接收\OBJ\delay.crf
............此处省略131个文件信息
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