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We need further clarification regarding the difference between the above ICs.We recently purchased the mentioned STM32 MCU, but received two different variants. In one IC, the ST logo on the right side has the marking “e3” with “L” outside the circle...
I am developing a device that implements the USB device class.According to application note AN4879 "Introduction to USB Hardware and PCB Design Considerations Using STM32 Microcontrollers" it is written as follows:Based on the USB specification, a US...
I got another strange issue with a STM32F3, as usual related to DMA.The problem relates to an "old" DAC / DMA example I tried to port to a different MCU.The original is called "DMA_RAM_DAC", and is part of the V1.1.0 firmware package for the F303 dis...
I'm using the LCD of the STM32U073K8, but the program failed to initialize the LCD. After checking, I found that the STM32U073K8 doesn't have the VLCD pin. Is the STM32U073K8 not compatible with the LCD peripheral? Or are there other settings?
Hi All,I've this requirement, can someone suggest how do I proceed.I'm using stm32u535 and over usart it's connected to Silicon labs chip. Silicon labs chip has Wi-Fi and I want to update firmware of STM32U535. This silicon labs chip is connected to ...
We are currently working with a custom PCB using an STM32N6 chip and an MX25UM512G flash chip. The flash is connected identically to the Nucleo development board.When powering up the board in Dev Boot mode, it is not possible to read the flash chip u...
Hello everyone. I am running into a USB Host <--> Device connectivity issue. I have 2 STM32L496 MCUs, one as Host and other as Device. I cannot get the CDC connectivity to work for some reason. The connections are as follows: D+ <> D+, D- <>D-, GND<>...
Hi, I am implementing a Dual Active Bridge (DAB) DC-DC converter on an STM32L476RG Nucleo board. The goal is to generate 8 complementary PWM signals using TIM1 (Bridge 1) and TIM8 (Bridge 2), both at 5 kHz with 50% duty cycle, and to control the po...
Hi.I'm using an STM32G051 and would like to use 12 ADC channels which are not sequential. I have thus set up the ADC for 'sequencer set to not fully configurable' as show below:Ignore for the moment that IN9 is red, I think I was trying something wit...
Hello, Is my understanding correct that it's impossible to internally detect short (<100ns) drops of VCORE internally? Reading RM0481 page 154 it seems impossible to directly monitor VCORE through the tamper mechanism which I assume forces the use of...
