STM32 MCUs Products

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Forum Posts

External Voltage Reference? To get a most accurate ADC result

Posted on October 06, 2014 at 09:53Dear all,We are trying to use the on-chip ADC of STM32F407. We have read two appnotes, which are AN4073 How to improve ADC accuracy when using STM32F2xx andSTM32F4xx microcontrollers and AN2834 How to get the best ...

cyqdtc by Associate II
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  • 1 replies
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How can I return from sleep mode on stm32f401

Posted on October 03, 2014 at 14:28Hi, I'm facing with a strange problem, in fact I'm working on Discovery platform to study the stm32f4 low power modes. I'd like to enter and exit from sleep mode and to do this I use an UART to send the command to ...

DUrbano by Associate III
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  • 8 replies
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STM32F4 potentiometer and ADC

Posted on October 01, 2014 at 17:23 HI, I want to read the value of a potentiometer; I have this ADC: #include ''stm32f4xx_adc.h'' #include ''stm32f4xx_gpio.h'' #include ''stm32f4xx_rcc.h'' #include ''pwm2.h'' void adc_configur...

pano by Associate II
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  • 5 replies
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STM32F4 tutorials?

Posted on October 02, 2014 at 19:55Hi everyone, So i wanted to get into ST ARMs microcontrolers. I only used TI Tivas before but i wanted to try out the ST ones.Well i would like to know if anyone could provide some links to tutorials and such. My m...

luis by Associate II
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  • 4 replies
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STM32F4 ADCs Can Achieve 2.4MSPS?

Posted on October 02, 2014 at 15:36Hi,I�m running a single ADC in continuous mode with fADC = 21MHz and expect it to provide 1.4MSPS. I seem to be getting only 0.55MSPS. Can anybody explain why this might be?According to the STM32F407xx Datasheet (D...

h239955 by Associate II
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  • 6 replies
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Question about external RAM and SD

Posted on October 02, 2014 at 17:05Hello,I try to test my application with a new setup with external SRAM on the STM3240G kit, for heap and stack.I use FatFS on SDIO which needs DMA. When I read a file there is a problem.I know it is not possible to...

pcu by Associate II
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  • 3 replies
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clock division

Posted on October 02, 2014 at 21:51Hello,       I am having hard time to figure this out. in the data sheet it is mentioned that the STM32F407 works at a maximum clock of 168 Mhz, but using any module timer, PWM or any other the clock is divided by ...

Generated CubeMX code with customer API

Posted on October 01, 2014 at 09:43Hi, I'm working on stm32f4 mcu and I'm using CubeMX to generate the code useful for my applications, so I'm wondering if it is possible to generate CubeMX code using my personal API; in other words, I'd like to lin...

DUrbano by Associate III
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  • 3 replies
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