在dma下触发dac 产生正弦波,可以节省时间 并且精度高 程序更加简洁明了
代码片段和文件信息
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
目录 0 2013-01-25 14:40 正弦波_按键
文件 916 2013-01-23 08:58 正弦波_按键DAC.c
文件 1957 2013-01-23 08:59 正弦波_按键DMA.c
文件 105 2013-01-21 11:07 正弦波_按键DMA.h
目录 0 2013-01-13 19:42 正弦波_按键Libraries
目录 0 2013-01-25 14:57 正弦波_按键LibrariesCMSIS
目录 0 2013-01-13 19:42 正弦波_按键LibrariesCMSISCM3
目录 0 2013-01-13 19:42 正弦波_按键LibrariesCMSISCM3CoreSupport
文件 17273 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3CoreSupportcore_cm3.c
文件 85714 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3CoreSupportcore_cm3.h
目录 0 2013-01-13 19:42 正弦波_按键LibrariesCMSISCM3DeviceSupport
目录 0 2013-01-13 19:42 正弦波_按键LibrariesCMSISCM3DeviceSupportST
文件 25107 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTRelease_Notes_for_STM32F10x_CMSIS.html
目录 0 2013-01-13 19:42 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10x
目录 0 2013-01-13 19:42 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartup
目录 0 2013-01-13 19:42 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIO
文件 12486 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIOstartup_stm32f10x_cl.s
文件 12474 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIOstartup_stm32f10x_hd.s
文件 12192 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIOstartup_stm32f10x_hd_vl.s
文件 9710 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIOstartup_stm32f10x_ld.s
文件 10159 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIOstartup_stm32f10x_ld_vl.s
文件 10159 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIOstartup_stm32f10x_md.s
文件 10624 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIOstartup_stm32f10x_md_vl.s
文件 13134 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIOstartup_stm32f10x_xl.s
目录 0 2013-01-13 19:42 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartuparm
文件 15763 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartuparmstartup_stm32f10x_cl.s
文件 15500 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartuparmstartup_stm32f10x_hd.s
文件 15767 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartuparmstartup_stm32f10x_hd_vl.s
文件 12373 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartuparmstartup_stm32f10x_ld.s
文件 13653 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartuparmstartup_stm32f10x_ld_vl.s
文件 12762 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartuparmstartup_stm32f10x_md.s
............此处省略203个文件信息
#include “dac.h“
#include “time.h“
//u8 Idx=0;
void GPIO_Configuration()
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOA &GPIO_InitStructure);
}
void DAC_Configuration()
{
DAC_InitTypeDef DAC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC ENABLE);
DAC_InitStructure.DAC_Trigger = DAC_Trigger_T2_TRGO;
DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_None;
DAC_InitStructure.DAC_LFSRUnmask_TriangleAmplitude=DAC_TriangleAmplitude_4095;
DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Disable;
DAC_Init(DAC_Channel_1 &DAC_InitStructure);
DAC_DMACmd(DAC_Channel_1 ENABLE);
DAC_Cmd(DAC_Channel_1 ENABLE);
}
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
目录 0 2013-01-25 14:40 正弦波_按键
文件 916 2013-01-23 08:58 正弦波_按键DAC.c
文件 1957 2013-01-23 08:59 正弦波_按键DMA.c
文件 105 2013-01-21 11:07 正弦波_按键DMA.h
目录 0 2013-01-13 19:42 正弦波_按键Libraries
目录 0 2013-01-25 14:57 正弦波_按键LibrariesCMSIS
目录 0 2013-01-13 19:42 正弦波_按键LibrariesCMSISCM3
目录 0 2013-01-13 19:42 正弦波_按键LibrariesCMSISCM3CoreSupport
文件 17273 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3CoreSupportcore_cm3.c
文件 85714 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3CoreSupportcore_cm3.h
目录 0 2013-01-13 19:42 正弦波_按键LibrariesCMSISCM3DeviceSupport
目录 0 2013-01-13 19:42 正弦波_按键LibrariesCMSISCM3DeviceSupportST
文件 25107 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTRelease_Notes_for_STM32F10x_CMSIS.html
目录 0 2013-01-13 19:42 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10x
目录 0 2013-01-13 19:42 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartup
目录 0 2013-01-13 19:42 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIO
文件 12486 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIOstartup_stm32f10x_cl.s
文件 12474 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIOstartup_stm32f10x_hd.s
文件 12192 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIOstartup_stm32f10x_hd_vl.s
文件 9710 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIOstartup_stm32f10x_ld.s
文件 10159 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIOstartup_stm32f10x_ld_vl.s
文件 10159 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIOstartup_stm32f10x_md.s
文件 10624 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIOstartup_stm32f10x_md_vl.s
文件 13134 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartupTrueSTUDIOstartup_stm32f10x_xl.s
目录 0 2013-01-13 19:42 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartuparm
文件 15763 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartuparmstartup_stm32f10x_cl.s
文件 15500 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartuparmstartup_stm32f10x_hd.s
文件 15767 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartuparmstartup_stm32f10x_hd_vl.s
文件 12373 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartuparmstartup_stm32f10x_ld.s
文件 13653 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartuparmstartup_stm32f10x_ld_vl.s
文件 12762 2010-10-18 20:09 正弦波_按键LibrariesCMSISCM3DeviceSupportSTSTM32F10xstartuparmstartup_stm32f10x_md.s
............此处省略203个文件信息
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