STM32 MCUs Products

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Forum Posts

CPAL I2C Issue

Posted on April 12, 2012 at 16:30One of my colleague has an issue with CPAL that ppl might have seen before (when being used for I2C communication on the SMT32L15R6...It appears to do start communicating, sends the start, sends the address and then ...

MikeAtETI by Associate III
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  • 2 replies
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How to corretly stop timer

Posted on February 13, 2015 at 21:41Hello, I am measuring voltage via ADC, using timer TRGO interrupt trgiggered DMA. After measuring 1000samples I need to stop, proces meassured data and then continue in meassuring. I stop timer by:TIM_ITConfig(TIM...

j3lda by Associate II
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Struggling with HC05 Module for AT Command

Posted on February 13, 2015 at 16:57I'm getting some hard time trying to make my HC05 to execute an AT command from my stm32f4 , first it seemed that the problem was that the module was not in AT mode, now that i got it to enter AT mode it still is ...

monta by Associate II
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RTC doesn't tick with HSE/128

Posted on December 22, 2012 at 17:11 I meet troubles with RTC on STM32F103RBT6. And it seems RTC in STM32 is very big problem. Many people have problem with RTC.STM32 has many restrictions for LSE crystal. Noname crystal from China which work...

urasinov by Associate II
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  • 8 replies
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STM32F1 bootloader issue

Posted on February 13, 2015 at 14:23Hello,in last batch from our supplier we have a problem with entering internal bootloader via USART1.Something probably changed in the processors, because previously, there was absolutely no problem. Now we have l...

zexx86 by Associate II
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  • 4 replies
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STM32CubeMX support for STM32W108HB

Posted on February 13, 2015 at 06:58I tried to configure STM32CubeMX for STM32W108HB but didn't see any STM32W options. Is there any way to configure STM32CubeMX for a STM32W?

connect AD converter 7903 with SPI from STM32F4

Posted on November 02, 2014 at 22:55Hello, I want to connect an AD converter AD7903 with the STM32F429 http://www.analog.com/static/imported-files/data_sheets/AD7903.pdf The AD7903 can be driven in a simultaneous sampling mode. It is show in the dat...

der-kyle by Associate II
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STM32F103: noise on GPIO input signal causes weird behaviour

Posted on February 11, 2015 at 22:56Hi everybody,I am struggling against a weird behaviour on a input GPIO.The GPIO input circuit is a simple pull-up; due to other components connected to my board, there is sometime some noise injected into the GPIO...

amarchi by Associate II
  • 2350 Views
  • 4 replies
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stm32f4 + ov7670 + dmlcd-35rt double upscaled image

Posted on February 13, 2015 at 03:16i am working on a project with stm32f4 , ov7670  and dm-lcd35rt image output from my camera is doubled and also its colour is greenish  following is my register setting // Clock Settings // xclk 24M pclk 12M    {...

scholar by Associate II
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APB Timers can exceed the APB domain max clock ?

Posted on February 12, 2015 at 16:57I have STM32F429I chip , I want to used timers , at the same time im running the APB1 at its max speed of 45 MHz . Now the clock provided to the APB1 timers will be double the clock of the APB1 domain by hardware ...