stm32l432kc nucleo Board data retain in Internal memory..?
I am using stm32l432kc nucleo Board.Is there any option for data retain when power is turned OFF ( Non-volatile memory Type).If yes can you please share the details and sample codes
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How to interface external battery module to STM32F7 ?
Hello Everyone,I am currently using STM32F7XXX eval board.I wanted to interface a external battery, which can power up the board.Can anyone suggest on How to proceed on this? As I am new learner.Thanks in Advance.
STM32F030: Combining/modulating two PWM signals (logical AND) into one output
I have a requirement to generate two PWM signals on an STMF030 MCUPWM1: 3-5kHz, 40-60% duty cyclePWM2: >40kHz, 1-100% duty cycleI need to combine these two PWM signals, using logic AND, into one (modulated) PWM output, like so:The signals could be co...
What is the least CPU intensive way to access the I2C bus?
I have tried using the HAL_I2C_Master_Transmit_DMA and HAL_I2C_Master_Receive_DMA functions to access an external I2C slave but I find that this takes a fair amount of processing time. I am using a STM32L476R M4 core device. Using a GPIO I measure th...
I2C seems blocked when restarting Debug session
Hi,I have some troubles with my Nucleo STM32F446RE communicating with my MPU6050 IMU over I2C. When powering everything the first time and debug it, it works fine. However, when restarting with exactly the same code, the board fails to start the I2C...
External Watchdog/BOD circuit for STM32F1/F4 series
Hello,We are designing automotive devices (Trackets,Meters etc) and almost in all of our devices we use external watchdog with integrated BOD function.We faced issues in the past during EMC/ESD tests, where the microcontroller's (AVR) BOD or watchdog...
RTC on B-L475E-IOT01A.
At evening I set time 18-38-00, got it back, it was OK and left it to run. At morning I see the time 32-59-48. My set-get functionsint RTC_SetTime(uint8_t hours, uint8_t minutes, uint8_t seconds) { if (hours < 24 && minutes < 60 && seconds < ...
Dear all, I am working on FDCAN with STM32G473 and I do not understand the example calculation of the Baudrate in chapter 43.4.7 in the following document RM0440 Rev 2 (en.DM00355726.pdf)
bit time = [NTSEG1 + NTSEG2 + 3] tqAnd in the note With a CAN kernel clock of 48 MHz, the reset value of 0x06000A03 configures the FDCANfor a bit rate of 171 kbit/s.NSJW = 6NBRP = 0 => 1NTSEG1 = 10NTSEG2 = 3How do you get 171 kbit/s by 48 MHzBest Reg...
