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For each microprocessor of the ST series - there is public documentation in PDF format, for example DS10916 (pages 76-87). I want to make my own format for describing AFxx contact states. When you try to convert a table from PDF to text or Excel tabl...
Hello,STM32F4 and F7 have a VOSRDY bit in PWR->CSR. Documentation about the bit is nearly not existant. On a F4, while still running on HSI, I changed the VOS setting. Waiting for VOSRDY in that state never succeeded. Looking for that bit just before...
I am new to STM32 products and development software. I have purchased the STM32F303RE Nucleus-64 Eval Brd. I'm also using SW4STM32 IDE as there are more examples. I have had some success, I still have some fundamental questions. I also downloaded and...
Hi,I am using STM32F746 series MCU.1) After executing SCB_DisableDCache(), the CPU resets.2) The CPU starts up after repeating the reset multiple times.3) This symptom does not occur when debugging with JTAG (ST-Link) connected.Could someone know thi...
Hi,Is there somebody who really used the RTC using external crystal (HSE) of 32.768KHz ? I tried to use it but with no success.Using the RTC with internal oscillator of 40KHz (HSI) the all it's OK. I think that there is a problem with external crysta...
Hi,I want to use STME32L152 with LSE for RTC.I set the bit LSEON in the register RCC_CSR but the bit remains always 0. I proceeded the same with LSION and it is working well.I disable also the bit LSECSS and behavior is the same.The LSE oscilator did...
Hello,I am using the STM32L053 microcontroller and it is currently communicating with another microcontroller (NRF52 ) through SPI protocol. The STM32L053 is slave and the other is the master.The application consists of :1) The Master(nRF52) sends a ...
We are using an STM32L4S5, and running into an issue with the DMA that is servicing the USART2 RX FIFO. It appears that the USART FIFO is filling up, and the DMA is not able to keep pace. The baud rate is 460800 with hardware flow control turned on, ...
Hi,I'm trying to find out whether there is any way to maintain internal pulldowns on pins in standby mode on the STM32F407.I suspect that this is not the case but haven't been able to find a definitive answer in the documentation. Any help would be a...
Before I enter the stop mode 2 I save all the GPIO MODER, OSPEEDR and PUDPR registers, configure pins as analogue (to save some power) and enter the STOP mode 2. When I exit the stop mode (I use RTC wakeup and GPIOs for that) I restore the above reg...
