STM32 MCUs Products

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STM32L452CC SPI send wrong data

Hi, Its my first post. Im trying a STM32L452 and IIS3dwb on SPI2 (SPI2_CLK on PB13). When I send the WHO_AM_I command, the SPI2_MOSI send only 0x0F instead 0x8F (0x0F OR 0x80). SPI2 setup is CPOL = High, CPHA = 2 Egde, 8 bits, MSB First, Baud Rate = ...

dso_01_01_02_11_25.bmp
fmaesso by Associate II
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  • 3 replies
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How to keep HSI running in STOP mode?

Hello support team.I'm using the STM32L011D4P, I configured the MCO output to repeat the HSI oscillator output divided by 16 and have a 1 MHz signal. With the help of an oscilloscope it is possible to identify a 1 MHz square wave.In the datasheet, I ...

Takahashi by Associate II
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  • 3 replies
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Malloc Calloc operations in STM32F4 without RTOS

Hi, i have an application where i have to read data and store in a buffer, now the buffer length depends on the data_len byte once received from the slave. Than is it wise to use Malloc/Calloc functions? Basically is the dynamic memory allocation sup...

DJ1 by Associate III
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  • 4 replies
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stm32h755xih6 bsdl file

Hi All,It will be much appreciated if i can get a hints on how to obtain bsdl file of stm32h755xih6 I download the bsdl files of the family en.stm32h7_bsdl . (in web indicate that it include stm32h755xih6) but in reality dont have. This IC have a 265...

Hafez by Associate
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  • 1 replies
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Resolved! SMT32L4xx blocked by bootloader

Hi all,I'm using stm32l431 and met a problem as below.After power up a new stm32l431 board which had not been programmed before, the MCU enter bootloader progam and the PC value is 0x1FFF xxxx.  Downlaod my own code to MCU but the code and not run.Th...

WYWF by Associate
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  • 3 replies
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Using the Hardware CRC for a CRC-8 calculation

Hi together,I am communicating over different interfaces and these are from different suppliers. There it is used the CRC-8 algorithem to secure the the communication data.I have two cases, in both we use a table to realize the crc calculation, now I...