Description: STM32是以Cortex-M3为核的处理器,该例程介绍STM32下如何对DMA进行操作。在许多情况下需要用到DMA,比如USB的批量传输等。-Cortex-M3 based STM32-core processor for the routine introduction STM32 how to operate on the DMA. In many cases the need to use DMA, such as USB bulk transfer. Platform: |
Size: 50176 |
Author:熊刚 |
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Description: very comprehensive example,
windows WDM driver development ex
The use of drive technology can s
Say all ? e full speed equipm
STM32 DAC DMA TIXINGBO
Implement hiding process, make pr
dma ddk driver Platform: |
Size: 5120 |
Author:Kamelin |
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Description: very comprehensive example,
windows WDM driver development ex
The use of drive technology can s
Say all e full speed equipm
STM32 DAC DMA TIXINGBO
Implement hiding process, make pr
dma ddk driver Platform: |
Size: 75776 |
Author:Kamelin |
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Description: 利用STM32的更新请求的DMA来从内存中传输数据到捕获比较寄存器-This example provides a description of how to use DMA with TIM1 Update request
to transfer Data from memory to TIM1 Capture Compare Register3.
Platform: |
Size: 8192 |
Author:梁凯 |
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Description: stm32的中文datasheet。其中包括adc应用实例,dma控制器应用实例,can应用实例,iic应用实例,tim应用实例,gpio应用实例,spi应用示例等待。-stm32 the Chinese datasheet. Including adc Applications, dma controller application examples, can application example, iic application examples, tim application example, gpio application example, spi application example to wait. Platform: |
Size: 14655488 |
Author:ztm |
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Description: stm32 串口通讯使用DMA的例子。使用了ST公司的固件库2.0,mdk-stm32 serial communication using DMA example. Using ST' s Firmware Library 2.0 Platform: |
Size: 1125376 |
Author:王国 |
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Description: STM32 采用DMA的方式实现ADC功能-This example describes how to use the ADC1 and DMA to transfer continuously
converted data ADC1 to memory.
The ADC1 is configured to convert continuously channel14.
Each time an end of conversion occurs the DMA transfers, in circular mode, the
converted data ADC1 DR register to the ADCConvertedValue variable.
The ADC1 clock is set to 12 MHz on Value line devices and to 14MHz on other
devices. Platform: |
Size: 13312 |
Author:rong |
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Description: ARM-CORTEX3开发,以stm32为例,实战开发项目,包括AD,DMA,SPI,PWN,RTC-ARM-CORTEX3 developed to stm32 example, combat development projects, including AD, DMA, SPI, PWN, RTC Platform: |
Size: 22712320 |
Author:小张 |
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Description: 本例介绍如何使用ADC3和DMA,从ADC3到存储器不断传输转换后的数据。
该ADC3配置为连续转换ADC_CHANNEL_8。
每次转换结束时的DMA传输,在循环模式下,
从ADC3 DR转换后的数据注册到uhADCxConvertedValue变量。
该uhADCxConvertedValue读值编码为12位,VREF +基准电压连接
在董事会到VDD(+ 3.3V)时,Vref-之间的参考电压连接在电路板到地面。
要转换的电压读取值,这里是方程适用于:
电压= uhADCxConvertedValue *(VREF + - VREF-)/(2 ^ 12)= uhADCxConvertedValue * 3.3 / 4096
在这个例子中,系统时钟是216MHz,APB2 = 108MHz的和ADC时钟= APB2 / 4。
因为ADC3时钟是27MHz和采样时间被设定为3个周期,在转换
时间12bit的数据是12个周期所以总的转换时间为(12 + 3)/ 27 = 0.56us(1.57Msps)。
用户可以通过应用引脚PF10连接到Arduino的CN5针A1的输入电压改变ADC_CHANNEL_8电压。
STM32评估板的LED可用于监控传输状态:
- LED1为ON时,转换完成。
- 当初始化错误发生LED1闪烁。-This example describes how to use the ADC3 and DMA to transfer continuously
converted data ADC3 to memory.
The ADC3 is configured to convert continuously ADC_CHANNEL_8.
Each time an end of conversion occurs the DMA transfers, in circular mode, the
converted data ADC3 DR register to the uhADCxConvertedValue variable.
The uhADCxConvertedValue read value is coded on 12 bits, the Vref+ reference voltage is connected
on the board to VDD (+3.3V), the Vref- reference voltage is connected on the board to the ground.
To convert the read value in volts, here is the equation to apply :
Voltage = uhADCxConvertedValue* (Vref+- Vref-)/(2^12) = uhADCxConvertedValue* 3.3/4096
In this example, the system clock is 216MHz, APB2 = 108MHz and ADC clock = APB2/4.
Since ADC3 clock is 27 MHz and sampling time is set to 3 cycles, the conversion
time to 12bit data is 12 cycles so the total conversion time is (12+3)/27 = 0.56us(1.57Msps).
User can vary the ADC_CHANNEL_8 voltage by app Platform: |
Size: 53248 |
Author:liu |
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