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Resolved! Using more of RAM over ROM is better or not

Hi, I have been using PWM with DMA in one project with register-level programming, there i could find the RAM usage was around 28% and the ROM usage was hardly 0.5%. The similar application project when i tried with using HAL API's, I found the RAM u...

DJ1 by Associate III
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  • 7 replies
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How to calibrate RTC on STM32F411CEU6

Hello everyone! I have stm32f411ceu6 dev board, and I decided to use RTC. But it's going slower than time on reference clock. I use 32768 oscillator, which is soldered on the board. Can I calibrate this thing? 

asnweriok by Associate II
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  • 8 replies
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Resolved! STM32H7 SPI chip select intermittently delayed

I’m working on a project that uses an STM32H745IIK6. Occasionally, 32-bit SPI read data was invalid. This happened in about one out of every two hundred reads. To track down the cause, I added a few lines of code to toggle a GPIO pin as a scope trigg...

STM32H7 SPI cs delay 231002b.png
AMacI.1 by Associate II
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  • 2 replies
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Uart DMA does not receive after a while

Hello, I am doing UART communication with DMA in my project. When the communication first starts, there is no problem, but after about 10 minutes, the receive process ends. Can you check my codes?volatile uint8_t txdata[8];char rxdata[8]={'*','*','*'...

STM32L412 issues with RTC

Hello! I am using the RTC of a STM32L412 with 32kHz LSI to wake the MCU from STOP2 mode after a specified time in seconds. Now I´m having two issues:1) I cannot program the MCU using a ST-Link V2 with current Firmware, when the STOP2 mode is active. ...