Forum Posts
Downloading last version of the STM32F769I-EVAL Board
Hello,I have a STM32F769I-EVAL board, where the Firm.Ver is V1.2.0In the package I download, I only have the 1.0.0 Hex version file.Before doing any test and erase the current version, to be able to load back the 1.2 version, I would like to downloa...
Problems reading flash memory through debugger while using WFE/WFI on STM32F429
I am using an STM32F429VGT6 with SWD debugger, and OpenOCD software 0.10.0.I am trying to dump the contents of the flash memory at 0x08000000 through debugger.If I don't use any WFE/WFI in my code, this works fine.If I put a WFE at the beginning of t...
B-L475E-IOT01A BlueNRG-MS / SPBTLE-RF Framing Error
I am having issues interfacing with the B-L475E-IOT01A's on-board SPBTLE-RF bluetooth chip. I am able to send header packets inquiring about the the bluetooth chip's write and read buffers. I have confirmed that I am doing this correctly, because I g...
Resolved! RTC Alarm not working more than once
Hello all,I'm trying to prototype a shutdown mode with a RTC alarm.I'm flashing the LED 5 times, then I set-up the RTC calendar, clock and alarm A (5 seconds after set-up clock). Then I go to shutdown mode. Everything works when I program my system (...
STM32L476RG Compilation Issue: Missing Headers
Hi, I've been trying to compile a program to talk to a sensor over UART for my STM32L476RG board. I'm having an issue with that I've tidied up the library that is needed to talk to the sensor, but I'm getting errors that I'm missing header files such...
STM32L010 low power mode
In an attempt to reduce power for a critical battery powered system, I tried, without success, to make the chip run in the power range 3 (1.2V). Here is what I do: At power up, with the chip running from the MSI clock divided by 2 (1Mhz), whatev...
Wake STM32L4xx from SHUTDOWN using RTC Alarm?
I'm currently using the STM32L4R9I-EVAL board and trying to prototype an application where the microcontroller will need to be in lowest power (i.e. SHUTDOWN) mode for several days or weeks and then wake up to perform an action. I can get the the mi...
Interpretation of SPI communication error
Hello,Still struggling with my SPI setup.See https://community.st.com/s/feed/0D53W000006r3jX for details on SPI and GPIO settings.On the exact same setup I have sometimes a correct communication and trace is :SCK in yellow, MISO in blue. I send bytes...
Why are the PWM pulses distorted when I set the duty cycle of the pulse cycle 1% -3% and 98% -99%?
Hi, I configured PWM 25 kHz on Nucleo-767ZI to control the PWM fan.When I set up Duty Cycle 1% -3% and 98% -99% the PWM signal is deformed.When the Duty Cycle is 4% to 97% PWM signal is good.Can it be improved or is it normal?Regards
