2015年9月8日
Cortex-M4 Core Registers
摘要： Cortex-M4 Core RegistersGoal:visualizingwhat happens to the Cortex-M4 core registers after resetHere's what happens after the processor is reset:Gener... 阅读全文
posted @ 2015-09-08 23:25 IAmAProgrammer 阅读(735) 评论(0) 推荐(0)
STM32 F4 ADC DMA Temperature Sensor
摘要： STM32 F4 ADC DMA Temperature SensorGoal:detecting temperature variations using a temperature sensor, ADC with DMA and TIM3 as a trigger (ADC sampling ... 阅读全文
posted @ 2015-09-08 23:23 IAmAProgrammer 阅读(1775) 评论(0) 推荐(0)
STM32 F4 Clock Sources
摘要： STM32 F4 Clock SourcesGoal:routing clock sources to the microcontroller output pin (MCO1)High-speed internal (HSI) clock is 16MHzHigh-speed external (... 阅读全文
posted @ 2015-09-08 23:16 IAmAProgrammer 阅读(765) 评论(0) 推荐(0)
STM32 F4 DAC DMA Waveform Generator
摘要： STM32 F4 DAC DMA Waveform GeneratorGoal:generating an arbitrary periodic waveform using a DAC with DMA and TIM6 as a trigger.Agenda:Modeling a wavefor... 阅读全文
posted @ 2015-09-08 23:15 IAmAProgrammer 阅读(5365) 评论(0) 推荐(0)
STM32 F4 General-purpose Timers for Periodic Interrupts
摘要： STM32 F4 General-purpose Timers for Periodic Interrupts 阅读全文
posted @ 2015-09-08 23:12 IAmAProgrammer 阅读(386) 评论(0) 推荐(0)
STM32 F4 SPI Accelerometer
摘要： STM32 F4 SPI Accelerometer 阅读全文
posted @ 2015-09-08 23:11 IAmAProgrammer 阅读(391) 评论(0) 推荐(0)
STM32 F4 GPIO Modes
摘要： STM32 F4 GPIO ModesGoal:creating a visual summary of GPIO configuration modes.The summary at the bottom shows the major configuration choices.Basic el... 阅读全文
posted @ 2015-09-08 23:10 IAmAProgrammer 阅读(625) 评论(0) 推荐(0)
PWM实现ADC和DAC
摘要： PWM实现ADC和DAC一、PWM实现AD 利用普通单片机的2个IO及一个运算放大器即可实现AD转换电路，而且很容易扩展成多通道。其占用资源少，成本低，AD 转换精度可以达到8位甚至更高，因此具有一定的实用价值。1.1 硬件电路说明图一中“RA0”和“RA1”为单片机的两个I/O脚，分别将其设置为输... 阅读全文
posted @ 2015-09-08 22:21 IAmAProgrammer 阅读(2375) 评论(0) 推荐(0)
DELPHI - How to use opendialog1 for choosing a folder? TOpenDialog, TFileOpenDialog
摘要： DELPHI - How to use opendialog1 for choosing a folder?On Vista and up you can show a more modern looking dialog usingTFileOpenDialog.var OpenDialog: ... 阅读全文
posted @ 2015-09-08 12:11 IAmAProgrammer 阅读(8746) 评论(0) 推荐(0)
STM32 Timer Clock sources -- External Clock Both Edge
摘要： Timers get their clock source from External pins or Internal timer sources.ExternalExternal = pins: TI1 or TI2 or ETRset pin to be used:in TIMx_CCMR1 ... 阅读全文
posted @ 2015-09-08 12:03 IAmAProgrammer 阅读(10280) 评论(0) 推荐(0)
STM32F4 How do you generate complementary PWM Outputs?
摘要： How do you generate complementary PWM Outputs?I would like to generate complementary PWM Outputs with adjustable dead time.According to the STM32F401R... 阅读全文
posted @ 2015-09-08 08:56 IAmAProgrammer 阅读(1854) 评论(0) 推荐(0)