Resolved! Setting Prescaler and Period for Buzzer
For producing 4KHz resonant frequency sound from a buzzer using 32KHz system clock, what should be the Prescaler value and Period(ARR)? Is there any rules for defining these values?
Forum Posts
Resolved! STM32H725ZGT6 hangs after programming
Hello friends, i have the following setup:STM32H725ZGT6 on a selfmade board. STM32 CubeMX (default program with HSI clock and without any other peripherals). Keil µVision 5.23ULINK2 Debugger problem:I can program the controller ("verify successfull" ...
STM32U5 wakeup from stop mode with LPUART
Hello.I'm trying to wakeup the STM32U5 controller (U575ZI Nucleo board) when a byte is received using the LPUART.I'm using the LSE clock for the LPUART. Without entering the stop mode, the LPUART interrupt is triggered whenever a byte is received. Th...
If the bootloader will enter system ROM bootstrap first when using flash mode to boot in stm32f103
When I downloaded applicaton into flash, I found that it will respond my cmd code if I send cmd code immediately after NRST changing from 0 to 1.If although I choose 'Boot0(pin) = 1和Boot1(pin) = 0' to flash mode, the stm32f103 will also enter system...
fake and the original chip...
how to tell the stm32(f103c8t6) chip between the fake and the original
FX_IO_ERROR - LX_SYSTEM_INVALID_BLOCK
Hello, I am trying to install FileX + LevelX in an stm32h7 microcontroller using a nor custom driver. I do have in my hardware an AT45DB641 NOR memory. I am working it as an stand alone and also with fault tolerant enable. My flash chip does have 40...
USB-C Power Delivery Sniffer with Nucleo-L152RE
Hello, Is there an option to use with Nucleo-L152RE as Power Delivery CC line sniffer and decoder?As far as I know to allow to sniffer cc line protocol it should have the ability to use Manchester decoder.Thanks,
Resolved! DMA RX complete interrupt sometimes not called in STM32L4
Hi everyone, I've done these steps before on STM32F0, STM32F1 and STM32F4 microcontrollers to detect when a circular DMA buffer for UART "wraps" (The counter finishes with the array and starts from the beginning again) with complete successActivated ...
Resolved! Timer update generation delay
Hello,I am verifying timer functionality on an STM32F303K8 Nucleo development board. After generating an update event, the counter register does not update immediately - in downcounting mode, it takes several nops for the counter to read the same as ...
Regarding the issue with the input data rate of DFSDM？
If DFSDM uses internal parallel data input, such as direct write to input register or DMA writing, what is the maximum frequency of input data in this application?
