STM32 MCUs Products

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Forum Posts

How can put points between the string?

Posted on February 20, 2015 at 02:05 hi all How can put points between the string? ( for example: 00.00) thanks void Str_convert(unsigned long t, unsigned char *str, unsigned char n) { unsigned ...

kemal by Associate II
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  • 2 replies
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DAC can't output 0V

Posted on February 19, 2015 at 07:41 I'm using stm32f429 discovery board. I have configured DAC Channel 1 (PA4) for DAC ouput. When I try to configure ouput in the range of 0.15v - Vref(2.97v) I'm getting the ouput properly, but when trying to ...

STM32F105RC I2C2 always busy

Posted on January 03, 2013 at 16:15 Hi, I hope someone can help. I have got the I2C1 peripheral working fine with the above chip, but when I try and initialize the I2C2 peripheral, the busy flag is always set. Does anyone have any i...

owen2 by Associate II
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  • 6 replies
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STM32F103 firmware library

Posted on February 20, 2015 at 13:01I am unable to understand the following syntax ((ADC_TypeDef *) ADC1_BASE). Please help me understand the meaning of this code. Is this some kind of a pointer?

shauns87 by Associate II
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stm32 DMA transfer to Timer

Posted on February 16, 2015 at 14:21 Hello, I'm working with the STM32F373 µC trying to get the DMA work with a timer. I want the DMA controller to write 3 different values in the ccr1 register of timer Unfortunately there is no exa...

STM32F405 USB HS in Device Mode not recognized

Posted on July 12, 2014 at 00:05 I am trying to get the USB in HS device mode working. I am using the ST USB OTG libraries in version 2.1.0. I modified the example code for a VCP device, so it fits my needs. Compiler flags are USE_USB_OTG_HS ...

aow by Associate
  • 825 Views
  • 2 replies
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RTC: Tamper sampling frequency

Posted on February 13, 2015 at 13:19HiIt was not clear from the datasheet, but is the TAMPFREQ register only applicable when using level detection and not edge detection?I am asking as PC13 (RTC_TS) is not available on some low pin count packages an...

How to generate dutycycle for ESC controler using STM32F4

Posted on February 12, 2015 at 18:49 I have some brushless simonk ESC`s driving my brushless motors. I noticed that these esc`s are woring on a 1 to 2 ms pulse from a 50hz signal. Wich in duty cycle terms means that i must work with duty...

Bogdan by Senior
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  • 8 replies
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Boundary Scan problem STM32L100RB

Posted on January 28, 2015 at 11:26I'm trying to run Boundary Scan on a board with a STM32L100RB mcu. It is the only Component in the boundary scan chain, but I can't get it to work. I get nothing at the JTDO pin. Anyone have any idea what might be ...

maria23 by Associate II
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  • 9 replies
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