STM32 MCUs Products
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FCLK Cortex clock of STM32F411CE microcontroller
Hello,STM32F411CE microcontroller.What is FCLK Cortex clock for the STM32F411CE microcontroller (see Figure 1 below from the STM32CubeMX (Clock Configuration tab))? Is this clock related to processor clocking? As far as I know, the processor is clock...
Resolved! GPIO input at 12V
Good Morning, I want to use a GPIO input or a ADC input as a logical reader which gives 0 or 1 if it reads 0 or 12 Volts. However, I know the maximal rating is normally 3.6 volts for those pins. However, i saw that the Adc can still read 5 volts, it ...
Resolved! STM32 Interleaved ADC Sample Timestamping
Hi, I am using STM32L476RG-Nucleo64 boards for one of my ultrasound projects. Basically, the process is:1)Send 2MHz pulses with pwm2) Sample 1000points with 8-bit interleaved ADC(500 each) and DMA3) Send ADC data through SPI.4) Wait TIM3 to trigger a...
Resolved! 5 khz wake from stop mode
I have an application in which I'm required to check the status of an accelerometer 5000 times per second but it's a battery powered device so I want to minimize power consumption. I'm using an STM32L053C8 on a custom board with an external LSE cryst...
Resolved! Calculating Rext after increasing LSE Drive Level on STM32H7
Hello,A design I am working on utilizes a LSE crystal with the following parameters:f = 32.768kHzCL = 12.5pFCo = 0.9pFESR = 50kR MaxDL = 1uW MAXI am calculating gmcrit ~ 1.52uA/V. According to table 5 in AN2867, the drive level should be set to Medi...
Resolved! receive unknown length frames with UART
Hello everyone,I’m working on an embedded project where I need to receive a variable-length stream of bytes via UART on an MCU STM32H750. The key points are:All bytes are payload, no start or stop bytes, no protocol framing.The number of bytes is un...
stm32L051c8 failed to erase memory
Tried to erase , recently i keep getting this error , when attempting to erase through IDE even though not successful , after several tries it programs.
Resolved! STM32H747I-DISCO: FDCAN1 TX not showing output in normal mode on PD1/PD0 (D3/D2)
Hello ST Community,I am working on the STM32H747I-DISCO board and trying to configure FDCAN1 for CAN FD operation.Setup:I understand this board does not include a CAN transceiver, but I want to validate FDCAN1 TX signaling before attaching one.I conf...
STM32U5G9 OctoSPI Memory-Mapped Mode with MX35LF1G24AD NAND Flash
Hi everyone, I'm working on a project using the STM32U5G9 microcontroller and trying to interface it with a Macronix MX35LF1G24AD NAND flash via the OctoSPI peripheral. The goal is to enable memory-mapped mode so the external flash can be access...
