STM32 MCUs Embedded software

Debug mode - Behaviour Debugging vs loading in flash memory in STM32H7

Hi everybody,I'm working on a board with STM32H7. I want to understand why when I launch the debugger mode with the bootloader program. The program of the bootloader still on the memory flash of the STM32H7 after a restart (turning off the board) an...

F411RE USART2: Cannot Achieve 3M Baud Rate

I am testing F411RE Nucleo USART speed.Sample code is: STM32Cube_FW_F4_V1.26.0\Projects\STM32F411RE-Nucleo\Examples_LL\USART\USART_Communication_TxRx_DMAAt PC side, I am using Putty as serial receiver.So far, the highest working baud rate is slightly...

STM32H74xxx USART1 Bootloader default pins

Hi,We are using STM32H747IG microcontroller in our custom board and have connected the USART1 pins PA9 & PA10 to the host processor to update the firmware using UART.The USART1 pins PB14 & PB15 are connected to the LEDs using a NPN transistor and wil...

How to distinguish between a STM32F042F6 and an STM32F070F6?

The chip shortage has led to some complications, and I've built a batch of products using any chips I can lay my hands on. This has led to a random selection of STM32s: the F042F6P6, F042F6P7, and F070F6P6. They're mostly compatible, but my applicati...

i have made a simple web server function with HTTP by use STM32, if i want to change it to HTTPS, any reference i can do?

STM32L412 some GPIOs default to Output mode with blank flash

Hi,This can be considered as a bug / something to be improved on the ROM bootloaders (at least in the L412 family):Our specific design uses TIM16_CH1 in PWM mode to control a small flyback converter. As a safety measure, we've added a pull-down to th...

STM32 USB endpoints capabilities / usage questions

Hi,I'm trying to understand the capabilities of the STM32 USB endpoints (lets say at the moment, I wan't to evaluate the USB using the STM32F429ZI Nucleo board, but my question might be portable to any STM32 with USB).1/ It's not clear to me if an en...

STM32F4: FAT on NVM memory

hi,I have 2 disks.disk is SD card with FAT. Here is all workingdisk is NVM N25Q256A. Here I have problems.For NVM memory I set sector to 4096 with page 256 bytes. This memory has erase sector 4kB. Datasheet of this memory I attached. And my problem i...

How to test Audio loop back (STM32f7508-DK)

Dear all,I have Stm32f7508-Dk ,I am trying to execute the BSP examples one by one Everything is ok but got stuck in Audio loopback As per instruction (Read Me file) we have to give input to Microphones U20 , U21 and we got the output in CN10 But i ca...

Unable to get DHCP working with STM32F407 + DP83848

Hi, I am unable to get DHCP working. I am using the DP83848 board with an STM32F4 Discovery board. I am using the STM32CubeIDE and so had the code generated, the DP83848 is working on RMII mode.When I enable or disable DHCP and connect it to my PC/la...