STM32 MCUs Products

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Forum Posts

STM32L151RB I2C Busy flag always set

Posted on February 17, 2014 at 23:55Hi!I've a custom made board with STM32L15RB microcontroller. My I2C1 is not working well: I see the Busy flag going SET when I activate the APB1 Clock (RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);)With a l...

alby87 by Associate II
  • 3053 Views
  • 15 replies
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STM32F100 firmware update tool

Posted on October 30, 2014 at 11:30Hi dear community, Cannot find any ready-to-use Windows tool, which would allow me to upload firmware to STM32F100C8 using its embedded bootloader and USART1 interface. All DFU tools I found supports only USB inter...

do by Associate
  • 689 Views
  • 2 replies
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STM32F103 and I2C issue - No ACK from slave

Posted on February 22, 2013 at 14:56 Hi everyone, first of all i've to tell you that i'm new with I2C bus. I'm using I2C1 on STM32F103 ARM to communicate with an I2C eeprom (24LC256). I can see both SCL and SDA on my scope but it seems t...

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Synchronization of two DMAs

Posted on October 30, 2014 at 21:54Hello, I need generate via DAC and measure via ADC at the same time (when I connect DAC with ADC, I should exatly measure what I generate). Transmissions from ADC and to DAC are now via DMA. Is it possible to sync...

j3lda1 by Associate II
  • 697 Views
  • 1 replies
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STemWin STM32F429 Discovery Screen Rotation by 90 degrees

Posted on October 30, 2014 at 11:54I'd like to rotate screen of STM32F429 Discovery by 90 degrees. It is OK when size of any axis is less than 240px. However for size is greater than 240px, image on the screen was corrupted. Please refer this http:/...

erturki by Associate
  • 612 Views
  • 1 replies
  • 0 kudos

STM32F205VB ADC with external reference

Posted on October 30, 2014 at 11:17Hi,I try to use the ADC with ext ref but it doesn't work...I use ADC 1 from PA3.Are there any sample or does have anybody code example? #whiskey-tango-foxtrot

sven by Associate II
  • 994 Views
  • 4 replies
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stm32f10x with AES and CBC

Posted on October 30, 2014 at 16:54Hi Is there an example code or library for the stm32f10x that does AES128 encryption\decryption with CBC cipher mode. thanksLiam

lmullane by Associate II
  • 509 Views
  • 1 replies
  • 0 kudos

stm32f401 RE connect data with KXP84-2050 through SPI

Posted on October 30, 2014 at 15:14Dear Sir/ Madam,I have just write one program for stm32f401 RE nucleo board in order to read acceleration from KXP84-2050 ( all in rar files). I cannot understand it is alway stuck in send function because i checke...

phivus2 by Associate
  • 304 Views
  • 0 replies
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Read stm32f4 device

Posted on October 30, 2014 at 13:31Hi.How can I read device ID with software?Is there any register that stores this value?I would like to detect device on which program is running.Or at least size of flash.I'm using stm32f4 devices.

tm3341 by Associate II
  • 494 Views
  • 2 replies
  • 0 kudos