DFU to USB virtual Comport
Hi I wanted to make a flight controller using stm32h723zgt6. My question is can this MCU have Usb virtual com port so I can use dfu Mode
STM32 MCUs Products
Ask questions, find answers, and share insights on STM32 products and their technical features.
Forum Posts
Resolved! Memory/Instruction barriers before writing to the backup SRAM
The following code didn't worked because of a missing data barrier before writing to the backup SRAM:HAL_PWR_EnableBkUpAccess(); std::copy(buffer, buffer + num_bytes, BaseAddress + address); HAL_PWR_DisableBkUpAccess();Adding a DSB, solved the issue ...
Resolved! USBPD CC orientation STM32G071RB
Hi, I am troubleshooting a custom board using USBPD as sink. It only negotiates a PDO on one orientation of the USBC connector.Checked with an oscilloscope and I see waveform going to CC1 on the orientation that works , naturally, and changing orient...
STM32F407 CDC Host - IN transaction always returns NAK
I've setup an STM32F407 as a CDC Host on the HS peripheral with Full Speed (FS) comms, but the IN transaction always returns a NAK and no Device data is received on the Bulk Data pipe. I used the USB Host example from ST.com (userfunction that only t...
Resolved! FDCAN interrupt not working
Hello, I am trying to make FDCAN work but I am not receiving any messages. The TX is working fine but when trying to receive messages the interrupt is not triggered. I am using STM32H7 series with freertos. I have set the filter, started FDCAN, enab...
mmc deinit problem
Hi, We are working on a low power application which uses an emmc memory. Now we have problem when Deinit mmc driver. When mmc is disabled we have a base consumption of XXuA (stop 2 power mode) but when it is needed mmc must be enabled (using Init fun...
Resolved! STM32F446 Tempreature Sensor, ADC
I am trying to read ADC value of internal tempreature sensor of my STM32F446 board. The data sheet says that the temp sensor is connected to ADC1_IN18 (page no. 37/198), but there is no such pin in STM32F446xx pin and ball descriptions. Can someone p...
Resolved! How to access a SD-Card connected by STM32 SDIO as a U-Disk by PC?
Hi there,I am working on STM32F429BIT6, and I have a SD-Card connected.Now, I want to copy some data between the PC and SD-Card by USB directly.Is there any example or document?Anything is welcome, thank you!
Resolved! ADC1, ADC2 dual mode with differential input
ADC1 and ADC2 run in interleaved dual mode using DMA. Resolution for both ADCs is set to 8-bit. ADC1 is sampling CH1 and CH2 in differential mode. The results that I get from DMA are a bit strange: If my positive input is ~1.65V, if my negative input...
Resolved! STM32h753bit6 HSI clock at startup
tying to find what frequency the hsi is at startup and normally i search the datasheet for clocks and startup but this returns nothing in the datasheet for the stm32h753bi mcu only thing i see is that it has 4 clocks and it says the hsi is 64mhz is ...
