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How did I miss this? 32KHz/64KHz DMA using LSE

Just in case others have missed this feature (like I did). You can generate DMA at 32768Hz and even 65536Hz rates with the LSE if you use the "TIM15 input capture 1 is connected to LSE" option and set the timer to "input capture" mode and capture one...

gregstm by Senior III
  • 1341 Views
  • 4 replies
  • 4 kudos

Multiple bus master access to OSPI PSRAM on STM32L4P5G-DK

I'm using a STM32L4P5G Discovery Kit board with the external OctoSPI PSRAM in memory mapped mode to store a framebuffer for a SPI display. The board runs at 120MHz and uses the board support file by ST for initialization. The SPI transfer to the disp...

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JSchu.5 by Associate II
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  • 0 replies
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Resolved! Maximum and Minimum ADC Voltage

Hello, I am using a NUCLEO L552ZE-Q board, can some one please tell me what are the maximum and minimum voltages that it is safe to apply to an ADC input without causing damage to the Microcontroller. Thanks in advanceStephen

sbate.1 by Associate II
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  • 3 replies
  • 1 kudos

Why there are big execution times (peaks) when doing PIL tests on both QEMU emulator and STM32F769NI board ? (issue not present when doing SIL tests)

Hello, I'm wondering why there are big execution times (peaks) when doing PIL tests because the execution times are smaller when doing SIL tests (no peaks). Please find attached the comparison between SIL and PIL. Do you have some explanation and som...

(BUG FOUND + SOLUTION) OctoSpi configuration fails when sending only Data without instruction, address, or alternate byte, or dummy-cycle in regular-command protocol

According to the OctoSpi Documentation, only one of the five phases needs to be active in order to configure OctoSpi. "20.4.3 OCTOSPI Regular-command protocol When in Regular-command protocol, the OCTOSPI communicates with the external device using c...

DBark.2 by Associate III
  • 1468 Views
  • 4 replies
  • 1 kudos

Resolved! PWM Measurement Accuracy

Hi,I am trying to measure the duty cycle and the frequency of a standard servo PWM signal (50Hz and 5% to 10% duty cycle) using STM32F446. I have configured the timers to be in PWM input mode, and I can read both the frequency and duty cycle. The mea...

Randi by Associate
  • 2786 Views
  • 2 replies
  • 0 kudos