STM32 MCUs Products

I concanate two strings using strcat. Then I transmit that strings through uart2 but when I check in the putty terminal the string is showing half of it. It is not showing full string on the putty terminal. Any idea about this?

Problems with receiving from ESP8266 via UART

Hi,since some days I try to get a communication between a STM32F030R8 Nucleo and an ESP8266 WIFI module working. Communication between Putty and WIFI module works already. I am stucking at receiving the answers from ESP module. I already tryed it wit...

Can't access RTC Alarm Registers for second time

Hi STM32F103 ProgrammersI am fighting with my RTC. I have it working but have problems with accessing the Alarm registers for the second time. I can't find the reason why I can't.I program the RTC direct using Bit fields and when needed register bit ...

I am using the STM32L051K8U6 and I have set up to use EXTI interrupt on PA0. I also have EXTI interrupts enabled on PA3, PA10 and PA11. PA3, PA10 and PA11 do generate interrupts but not PA0. I include the MX project. Is there any possible reason for this?

STM32L011 in low-power and "Target is not responding, retrying ..."

I'm using Nucleo STM32L011K4T6 kit to test different low-power features.For this, the code is executed in RAM for 10ms (GPI/Os management) then the MCU is put in stop mode with the WFI instruction, to be woken up 90ms later by the RTC (RTC wake up).T...

how do I fix an interrupt that fires multiple times on EXTI4-15

Hey,I am using nucleo F030R8 om window os.I connected buttons to the board and i proggramted that each push will trigger an interupt(rising and faling). However many times i can see the the unterupt callback function is triggerd twice(2 calls for on...

STM32H7+DMA+UART – which stream ?

Hi there,can anyone assist in understanding how to choose the correct ‘stream’ for an STM32H7 + DMA + UART setup, please ?I’m continuing work on a previous colleague’s firmware where UART1 was programmed to operate in DMA mode. This needs to change t...