STM32 MCUs Products

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STM32F401 low temperature problem

Hi, I am using STM32F401CCU6 on my circuit and it working well at room temperature. When I was testing the circuit in low-temperature below -10 degrees the RX of UART1 lost messages, when I came back to 0 degrees the circuit is coming back to normal ...

‪tsur.1 by Associate II
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  • 12 replies
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Programming Erorr

Dears I'm using board "STEVAL SPIN3202" to drive a BLDC Motor. To program the microcontroller , I'm using STM32 Motor Control Workbench software. The mode of driving is sure FOC since I'm using this software. The problem, However, happens when I acti...

ANahh by Associate II
  • 883 Views
  • 3 replies
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Resolved! gpio let down 5 V pull-up

I use stm32f401's PB4 (NJTRST) pin. I attached 5 V pull-up resistor (5.1k) to PB4. While MCU is in reset mode the voltage on PB4 is 4.26 V. Only after starting the system, the voltage increases to 5 V. In my program I configure PB4 as input without p...

How to make NUCLEO-H745ZI-Q do anything?

I've been trying to make LED blink. GPIO PE1. So i wrote this code:HAL_GPIO_TogglePin(GPIOE, GPIO_PIN_1);HAL_Delay(200);When i'm creating procject for this board it creates two procject for each core CM7 and CM4 each with it's main.c. I can debug eac...

KBile.1 by Associate II
  • 1802 Views
  • 6 replies
  • 0 kudos

Newbie question about PWM output accuracy

Hi, I'm testing various PWM scenarios and found that output frequency does not match with expected. I'm using formula Period = (PSC+1)*(ARR+1) / TmerClockFreq in seconds Period = 1000 * (PSC+1)*(ARR+1) / TmerClockFreq in milliseconds. The board is Nu...

SZony.1 by Associate II
  • 3786 Views
  • 10 replies
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GAM module of X-CUBE-AUDIO does not work with STM32L

I tried to use GAM module of X-CUBE-AUDIO. In the documentation, it says that it can be used with any STM32 which possess M4 core however when I try to use it with STM32L series one, the function of the module returns -6 which indicates wrong hardwar...

Oozzy.1 by Associate II
  • 951 Views
  • 5 replies
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Setting Brown-Out Threshold in Option bits

Hi,for my application, I need to set my BOR threshold to about 2.5 V in my STM32L476RG. My understanding is that the preconfigured threshold is at level 4, which is 2.8 V (see RM0351 Rev 7, page 111).What is a good strategy for setting the BOR_LEV bi...

AHass.1 by Associate II
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  • 1 replies
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STM32L0C8T6 failed to communicate with M24C02 through IIC

STM32L0C8T6 failed to communicate with M24C02 through IIC,iic uses cubemx default configuration,The relevant code show as below:​#define ADDR_24LCxx_Write 0xA0#define ADDR_24LCxx_Read 0xA1#define IIC_BufferSize 256uint8_t IIC_WriteBuffer[IIC_BufferSi...

0693W000006HdlxQAC.png
*于.1 by Associate II
  • 756 Views
  • 2 replies
  • 1 kudos

Resolved! Not sure to whom to address my question: Question about Virtual Com-Port-Driver 1.3.1.0 installed on WIN10. The manager states "STMicroelectronics Virtual COM Port (COM 6)". But my attached ext. divice, which I want to access only accepts port 4!?

How can I change the driver to port 4 or how can I install the driver additionally for port 4? *Edited by moderation: please don't mention your email address publicly on this forum*

MKnap.1 by Associate II
  • 947 Views
  • 4 replies
  • 0 kudos