STM32 MCUs Products

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storing string's on flash

hi,I initialized string array with strings and type cast to uint32_t to store in flash memory as uint32_t. And then read the array as uint32_t. I update one of the string of the  array and type cast uint32_t to store that array in Flash memory back. ...

string.jpg memory.jpg
cjaya.2 by Associate II
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  • 19 replies
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STM32F412 CAN Transmits unexpected data

When I trigger a transmit of a test CAN message on CAN bus 2 the CAN module transmits unexpected data when I look at CAN bus with a logic analyzer. PCAN does receive the unexpected message and it does acknowledge the massage. Here is what I see on th...

TxTestMsgCode.jpg UnexpectedDataTX.jpg PCAN_RX_Unexpected message.jpg
JDOG by Associate III
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  • 1 replies
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FDCAN wakeup from stop mode in STM32H733

Hi,I'm trying to wakeup the mcu from data coming in FDCAN1 to FDCAN3. Is it possible?I know that with UART I can use this function : HAL_UARTEx_EnableStopMode().Is there a similar function to do the same thing?If i can't is it possible to make 2 pins...

Resolved! UART with STM32F405

I am having some issues with setting up the UART for my STM32F405RGT6. I have a custom PCB which has an CH340C (U7) serial chip and a USB-C (U1) port. See wiring diagram:I have set up my project in STM32CubeIDE and have connected to my MCU with a ST-...

mathieusteketee_2-1713962578180.png mathieusteketee_4-1713962908821.png mathieusteketee_3-1713962786778.png

Resolved! HRTIM interrupt callback function

I would like use HRTIM timerA interruption event, so I where looking for the weak function to rewrite it but not found it.I found that I must set compilation flag USE_HAL_HRTIM_REGISTER_CALLBACKS to 1 and make all functions as weak. If I make so stro...

JLope.11 by Associate III
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  • 1 replies
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STM32F412 I2C2 Busy flag keeps set

Hi all,i am facing issue with STM32F412's i2c. i am using i2c2 on PB9/PB10 pins. Two i2c slaves are connected on this bus. one is 24AA02E48 eeprom and second is M41T00S RTC.SDA is pulled up is 10K resistor and SCL is pulled up with 4.7K resistor.STM3...

sanju by Senior
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