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分类:其他好文   时间:2015-09-09 17:33:20    阅读次数:224
关于485接收不到字符串问题的深入分析
问题描述: ????最近碰到一个问题,stm32用485输出,但是只有输出,输入的数据stm32接收不到: 测试描述: ????测试485的dir口是 3.3v,悬空的话一般引脚电平是0或1电平;dir接的stm32的PC6,PC6用GPIO_...
分类:其他好文   时间:2015-09-09 13:36:32    阅读次数:259
STM32 水晶不摇
刚刚得到一个新的董事会,该设备被编程为去,但执行地址不正确,没有进入c语言没有进入c语言,有可能是一个难以回答的问题狗,硬狗拆除检查以下四种情况1.检查片内的功率是所有权利 2.检查晶体线短路3.4.检查你的复位电路元件是否正确用示波器查看晶振没有反映出现的问题是复位电路不对,切记boot0=0 k...
分类:其他好文   时间:2015-09-09 09:46:29    阅读次数:200
STM32 F4 General-purpose Timers for Periodic Interrupts
STM32 F4 General-purpose Timers for Periodic Interrupts
分类:其他好文   时间:2015-09-09 01:05:46    阅读次数:152
STM32 System and Timer Clock Configurations
STM32 System and Timer Clock ConfigurationsI've started writing some software to drive a series ofTLC5940 16 Channel LED Driverchips on anST STM32F407...
分类:其他好文   时间:2015-09-09 01:02:34    阅读次数:388
STM32 F4 Clock Sources
STM32 F4 Clock SourcesGoal:routing clock sources to the microcontroller output pin (MCO1)High-speed internal (HSI) clock is 16MHzHigh-speed external (...
分类:其他好文   时间:2015-09-09 00:57:38    阅读次数:420
STM32 F4 ADC DMA Temperature Sensor
STM32 F4 ADC DMA Temperature SensorGoal:detecting temperature variations using a temperature sensor, ADC with DMA and TIM3 as a trigger (ADC sampling ...
分类:其他好文   时间:2015-09-09 00:55:23    阅读次数:449
STM32 F4 SPI Accelerometer
STM32 F4 SPI Accelerometer
分类:其他好文   时间:2015-09-09 00:54:28    阅读次数:184
STM32 F4 DAC DMA Waveform Generator
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...
分类:其他好文   时间:2015-09-09 00:52:47    阅读次数:477
STM32 F4 GPIO Modes
STM32 F4 GPIO ModesGoal:creating a visual summary of GPIO configuration modes.The summary at the bottom shows the major configuration choices.Basic el...
分类:其他好文   时间:2015-09-08 23:34:19    阅读次数:298
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