USB device is not recognized for NUCLEO-H563ZI board using STM32 USB device library
1.NUCLEO-h563zi with stm32 USB device library from https://github.com/STMicroelectronics/stm32_mw_usb_device.2. FreeRTOS.3.No Azure RTOS,USBX is used.
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What is the typical practice for protecting VBAT from a reversed coin-cell insertion?
It is possible for a CR2032 coin-cell to be inserted backwards in the holder. Therefore the VBAT (on a STM32F446) input needs some protection for reversed polarity. What is the usual method of protection?The datasheet shows a -5 ma as the current lim...
STM32H743 fdcan not sending messages from FIFO
Hello everyone,I'm trying to use the FDCAN of the STM32H743 using the Tx FIFO. The board correctly receives all messages, but when trying to send them from the FIFO, it fills without sending anything. This is a piece of the code:if (HAL_FDCAN_AddMess...
Embedded Survey 2023 just Out - Guess which MCU/MPU Inside ?
Dear community members and Ambassadors, Embedded Survey 2023 is just out : It is interesting to see domination of C language by far and that a processor vendor’s brand weighs heavily in the decision process. “The embedded study lists highlight the...
STM32L151 USART Rx + DMA length of received data is not updated
Hi, team.I'm working on STM32L151 and have implement data transfer over USART + DMA, the implementation is very closed (but contains some modifications) to the following example:https://github.com/MaJerle/stm32-usart-uart-dma-rx-tx/blob/main/projects...
Oscillator Design - where are ESR and gmcrit formulars from?
I am reading datasheet AN2867(Oscillator design guide). There are two formulars : ESR and gmcrit. It's common formular and easy to find it from internet. My question is where are these formulas from? (How to derive these formulas?)AN2867 Rev 18, shee...
STM32F100RB "commmand not supported" error
Hi,I am working with STM32F100RBT6B. I am getting "command not supported" error while flashing the code using Keil Ide with ST-LINK V2 debugger. Please help.Thanks.
STM32F401CCU6 vs STM32F446RCT6 code problem
Hello. I use Timer 2 on STM32F401CCU6 to read rising and falling of clock signal. Timer 2 channel 1 in Input capture direct mode (Rising), channel 2 in Input capture indirect mode (falling). I registered an timer callback event and do some calculatio...
