STM32 MCUs Products

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Forum Posts

From I2C to SPI using the DMA (STM32F0)

Posted on September 25, 2013 at 11:33Hello everybody, I have to communicate with a STM32F0 using the I2C and then, the STM32F0 has to communicate with another device through the SPI? Is it possible to implement it through the DMA? If yyes, do you ha...

STM32F103R4 APB2 interfaces not working

Posted on September 30, 2013 at 21:36Hi My name is Salil and i am a product design engineer with EZ metrology.We are currently using STM32F103R4 in one of our developing products. This product uses only one USART interface (that works) and simple GP...

spuri by Associate
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  • 1 replies
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OPI Driver ERROR 231

Posted on September 30, 2013 at 13:19hi,I am using STM32RBT6 and RIDE7,when I try to debug there is an error ''unable to reset device and enter to debug mode''can you help me?

aymen by Associate II
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  • 3 replies
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Fatal Error[Pe1696]

Posted on September 30, 2013 at 13:50The original post was too long to process during our migration. Please click on the attachment to read the original post.

udif26 by Associate
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  • 1 replies
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ADC reading problem

Posted on September 28, 2013 at 21:19 Hi all This task is absolutely simple and I'm really wondering why i'm having a problem with it. I'm supposed to read the battery level via the ADC on stm32f100c8. What i'm doing is completely ...

sherif by Associate II
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  • 3 replies
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VCP with STM32

Posted on June 01, 2012 at 15:43Hello, I am working on virtual serial port to communicate between computer and device through usb. So i downloaded ''STM32F105/7,STM32F2 and STM32F4 USB on-the-go Host and device library.''  from http://www.st.com/sto...

hisham23 by Associate III
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  • 12 replies
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SPI fastest receive method

Posted on September 27, 2013 at 11:21Hello, I'm trying to receive data on an STM32F205 SPI1 as fast as possible. The sender is a STM32F4, and it sends commands in different lengths up to 2048 Bytes per command. There is no OS on the receiver, just t...

mail2 by Associate II
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  • 5 replies
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I2C interface through DMA

Posted on September 28, 2013 at 18:03 Hi, I have a long configuration to be done through I2C interface, so I thought I have to do it using DMA.I am trying to read device ID as a start. The problem is that the I2C sequence doesn't reach the...

What's difference between these several register?

Posted on September 15, 2013 at 14:25Hi everybody i have three primary questions. 1- What's difference between GPIOx_CRL rigester and GPIOx_CRH rigester? B.T.W: yeah, i know these both configure the GPIO to input or output modes and speed of output ...