STM32 MCUs Products

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Invalid clock pulse on I2C

Posted on March 11, 2015 at 09:04 I am using microcontroller STM32F On reading EEPROM operation with I2C microcontroller gives 7 clock pulses instead required 9. There is fragment of transmitting on picture. When this cause o...

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sdianoff by Associate II
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STM32F207 and STULPI01B Registers

Posted on August 21, 2013 at 17:05Hello. I have been searching the forums and cannot find an answer, hence I am starting a discussion here. I have been using the STM3220G-EVAL board and the HS USB onboard PHY (obsolete NXP device). I have since crea...

ckern by Associate II
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STM32L1 SPI throughput

Posted on March 13, 2015 at 16:17Hello, I'm running an STM32L151 at 32MHz and SPI BaudRate = fPCLK / 4. The device is an SPI Master, and tries to read a Slave as fast as possible. I'm using DMA TX and RX to speed up things. I can see the SPI clock r...

Kuikui by Associate III
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USB CDC state detection

Posted on October 04, 2013 at 17:53Hi All, i'm using STM32F407 in USB CDC mode, i'm having issue when i'm sending bytes from STM to PC, client application on PC is minicom, issue is when i close minicom and STM runs into ''frozen'' state until i...

STM32F3: Back to Read Protect level 0

Posted on March 12, 2015 at 14:27eg:The 10 first pages of Flash are write protected.The read protect level 1 is activated.What's happen when going back to level 0 ?According Reference manual, a mass erase is done but what's happen to the write prote...

SD CARD data larger than 800 bytes write error

Posted on March 13, 2015 at 08:52i am simply testing FATFS with my uSD card, whenever i write more than 800 bytes of hex data in card using f_write, it writes junk data, the hex file is attached, my code is shown below#define size 1200uint32_t buffe...

scholar by Associate II
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STM32F407 comms to thermopile

Posted on March 13, 2015 at 10:36 Hi, I am trying to interface to the Heimann 16x16 sensor but having issue with the timings and synchronization. There is only one bi-directional data line as shown in the pinouts below.The device acts as ...

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paul23 by Associate II
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Band Pass Filter STM32F429i discovery kit

Posted on March 13, 2015 at 09:32I am new to DSP. I have done fft and filtering using scilab tools. now same thing i want to do on stm32f429i discovery kit. I need Band Pass Filter (0.5 to 5Hz) in STM32F429i discovery kit. we dont have any tools whe...

lokesh by Associate II
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