STM32 MCUs Products

Ask questions, find answers, and share insights on STM32 products and their technical features.

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

Pull resistor in I2C in STM32f334

I am using STM32f334 I2C as master and my slave is Arduino UNOMy problem is I am unable to receive anything from my masterI think the problem here is pull resistor, first I tried using Internal pull resistor but it did not work, then I tried with 2k ...

SADEP.1 by Associate
  • 657 Views
  • 1 replies
  • 0 kudos

How to separate variables using MPU on STM32F429ZI?

This is kind of a broad question, but I'm having a bit of trouble understanding/finding resources on using the MPU on this MCU. My goal is to partition some of the variables in my code so that they cannot be accessed by accidental writes/overflow, an...

CMora.1 by Associate
  • 863 Views
  • 2 replies
  • 0 kudos

Resolved! Why I cannot register for the STM32H5 webinar??

This is the first time that I cannot register with my usual email address (which I use for this community). Just have registered for another webinar on STM32MP. Why registration for the H5 webinar does not like my email? 

_legacyfs_online_stmicro_images_0693W00000bjUyYQAU.png
Pavel A. by Super User
  • 2579 Views
  • 8 replies
  • 0 kudos

Debugging from bank 2

I'm working with Nucleo-f439zi board.I use dual banking feature.I cannot find a way to debug from bank 2how to debug application from bank 2 ?

Is internal pull up the same as external pull up resistor.

for example IC2 needs pull up resistor on the board but there is internal pull up options for pins.I wonder if this is the same. So by setting internal pull up you can skip the pull up resistors on the board. I know that NRST pin has internal pull up...

_legacyfs_online_stmicro_images_0693W00000biJeBQAU.png
MNapi by Senior III
  • 4387 Views
  • 4 replies
  • 0 kudos

Which flag definition would be faster ?

I have a lot of different flags in project, I wonder which style definition reads faster by processor .Definition 1     typedef struct{   __IO uint8_t flag1 ;   . //other flags     }Flag_t ;     Definition 2     typedef struct{   ...

hazall by Associate III
  • 689 Views
  • 1 replies
  • 0 kudos

How to search appropriate STM32

I'm looking for an STM32 which features:-Cortex M4 or M7-CAN bus capability -FPU/DSP capability-at least 512kb flash (tough I prefer 1MB or even more)-no BGA (I need to adapt it manually to a breadboard for testing - BGA makes things complicated at t...

MWebe.3 by Associate
  • 962 Views
  • 4 replies
  • 0 kudos

Interfacing MLX90614 sensor i2c with STM32F401 Discovery board. Problem : I am getting device address, register address, data address correct, but getting always NACK in stop condition. Can anyone please help me, this is my code snippet.

uint8_t I2C_ADDRESS = 0x00;I2C_HandleTypeDef hi2c1;int main(void){HAL_StatusTypeDef status = HAL_ERROR; uint8_t buf[3] = {0,};uint32_t temp_data_a; uint32_t temp_data_o; __IO float T; __IO float To;while (1){ HAL_I2C_Mem_Read(&hi2c1, 0x00, 0x06, I2C...

APand.7 by Associate II
  • 1864 Views
  • 4 replies
  • 0 kudos