STM32 MCUs products

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How to change default UART Idle line Inactivity time

Hello There,I'm utilizing IDLE event functionality of UART and use HAL_UARTEx_ReceiveToIdle_IT() for it.The issue that I'm facing is that some times this API falsely detects an IDLE event upon reception (May be a Transmitter issue). So, to overcome t...

KAgga.1 by Associate III
  • 13 replies
  • 0 kudos

Flash Read not working

I am using the SBSFU example in stm32l562edk devkit.I have modified flash_layout.h and I have added a 4 KB user data section in which I am trying to store user data from the application. I have ported a flash driver(read, write, erase) from the bootl...

PYada.1 by Associate III
  • 4 replies
  • 0 kudos

Resolved! About CAN filter

HiMany CAN messages are flowing on the CAN bus.I would like to receive only ID 0x5C0 among these.Please let me know the suitable settings to receive only 0x5C0 as a hardware filter without any software intervention, without any load on the MCU.I wrot...

Ukazu by Associate III
  • 5 replies
  • 0 kudos

STM32L4 ADC reading temperature stability

Our product uses a STM32L452 to measure the 4-20mA loop current of an external sensor. The product has an operating temperature range of 0-40°C.The STM32L452 datasheet (Tables 78 to 82) lays out the accuracy specs for the internal ADC but aside from ...

jminack by Associate
  • 0 replies
  • 0 kudos

My laptop doesn't recognize STM32

Hi. I'm using STM32F446RET6 and F401RE, and I enjoy coding with those. I majorly use my desktop PC to develop. But for a long time, my laptop PC can't recognize my ST micro computer. So I can't develop with my laptop. Then I tried to upgrade ST-link....

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MED2972 by Associate III
  • 9 replies
  • 0 kudos

Resolved! How DMA works in UART

Hello ! I've been wondering how DMA works in UART. I've checked some codes for example HAL_UART_Transmit_DMA(). I know it is set to sned 8 bit to peripheral. But I wondered when DMA knows that UART sent 8 bit when it is TX DMA or recevied 8 bit when ...

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Xenon02 by Associate III
  • 13 replies
  • 3 kudos

Speaker audio distorted even though it is quiet

I'm doing a project where I want to have a toy say audio clips when a button is pressed. Right now I'm trying to accomplish this with an STM32F407G-DISC1. I have a small speaker (16 ohms, 0.25 W) connected to my breadboard with the DAC OUT1 of the MC...