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xkamail
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since ‎2024-10-04
‎2024-11-19

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I want to create a highly accurate GPS time synchronizer.

2024-11-17
Option 1:- Use a 10MHz Timepulse signal from the GPS (Ublox M8N) and connect it to the STM32H7.- The STM32H7 will count the timer from 0 to 999999.- To determine when the second has passed and the NMEA signal arrives, check the next timer overflow, w...

How to change DMA srcAddress

2024-11-11
I’ve created a SPI peripheral as a slave in transmit-only mode. It operates in circular mode DMA and generates a complete callback every 20 milliseconds. Upon receiving the complete callback, I want to modify the source address of the DMA request.Cur...

DMA with multple variable

2024-10-16
 I have three variables:volatile uint16_t a[20000];volatile uint16_t b[20000];volatile uint16_t c[20000]; However, I only have one DMA channel.Can I use the DMA to transfer these three variables together in circular mode?starting with the first 10,00...

Retrieve data from external 4MSPS ADC; timestamp each sample

2024-10-06
Hello,I am planning to use the STM32H755ZI-Q to acquire data from an external ADC (AD7386-4) via Quad-SPI. The sampling rate is set to 4MSPS, and each sample must be associated with a timestamp.The RTC comes from my GPS module.Could you kindly provid...
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