STM32 MCUs Products

I erase flash memory L051 with uart,fail ,return back 1F,but 44 BB is ok,return 79,what's wrong?

command orders:7F return 7992 6D return 797F return 7944 BB return 79FF FF 00 or FF FE 01 OR FF FD 02 return 1F

Why SRAM address is not changing after writing in it using STM32F429

Hi,Having our board in which we have interfaced STM32F429 to SRAM (IS61WV204816BLL) .Facing issue while reading back the data after writing.Actual scenario: Have written a SRAM test code in which am writing 10 bytes starting from SRAM location 0x640...

STM32F407 RTC

I use the RTC of STM32F407 with LSE (32.768 kHz).A battery is connected to VBAT for backup.In the reference manual, the Backup operating voltage is at least 1.65V, but the RTC is actually backed up to about 0.3V.I do not know the reason. Could you te...

How to use external interrupt as toggle. for start and stop some process. For example start and stop pwm stream I think the challenge is having wakeup pin and external interrupt pin on same pin. Any help would be greatly appreciated.

I am using stm32f429 , i am getting error while i am doing RX operation, I am able to perform TX operation. USART1 is not even updating the register value during debug operation. if anybody has faced same situation please share answer.

Multi slave SPI for STM32F427ZIT6

Hi,I am using STM32F427ZIT6 for one of the design. I am new to designing. I am connecting 8 ADC's to this device using SPI. I am using SPI4 (Pin 1,4,5). I want to know whether chip select (8 nos) can connect to any IO's?? Because NSS (slave select) i...

Bug of GubeMX....Where to find the file stm32f7xx_hal_exti.h ?

CubeMX generate file stm32f7xx_hal_conf.h. There is a lineы in this file#ifdef HAL_EXTI_MODULE_ENABLED #include "stm32f7xx_hal_exti.h"#endif /* HAL_EXTI_MODULE_ENABLED */File stm32f7xx_hal_exti.h does not exist at all anywhere else

RTC periodic wake up interrupt fires only once

Posted on January 26, 2018 at 21:05 Hi, I'm writing an application with a STM32L051 (32 pin, 64kB ROM). This application uses the RTC and I wanted to use the RTC periodic auto wake-up feature to update the time display every 60 seconds. THE...

How to start and stop timer/counter using separate external pins (i.e. stopwatch)?

I need to accurately time the delay between two rising edges being triggered (charging time of a capacitor). The device I'm testing this out on is on a Nucleo-H743ZI but eventually want it to run on a Nucleo-F446RE so am not looking to use the HRTIM ...