STM32 MCUs Products
Ask questions, find answers, and share insights on STM32 products and their technical features.
Forum Posts
Resolved! STOP1 UART Wakeup 115200
Post edited by ST moderator to be inline with the community rules for the code sharing. In next time please use </> button to paste your code and a linker script content. Please read this post: How to insert source code. I have a STM32L433RCT3 and I'...
STM32L073 NOTZEROERR when writing to Flash
Hello! I need help. STM32L073RZT6 MCU.How can I write, for example, 2 times 8 Bytes into any second half-page of flash memory?Every first page is recorded successfully and read successfully. For example, I write 8 Bytes of data to the beginning of th...
Missing FMC description in H5 Reference manual
Both in the manual and in CubeMX, it is shown that my microcontroller, has the ability to configure the FMC, for an asynchronous muxed PSRAM interface.However, in the manual I can only find the timing description for the asynchronous NOR Flash and fo...
Resolved! Fault handler, stack frame
Hi.I am trying to test out a fault handler for our STM32G (right now, the fault handler just tries to determine the location of the code that caused the fault).If I force a fault (divide by zero) in "normal" non-interrupt handler code, I can easily r...
STM32U575 – Unable to Enter STOP3 Mode: WFI Ignored after BOR
I am experiencing an issue when trying to use STOP3 mode on an STM32U575VIT6Q device mounted on a custom PCB. In fact, the MCU never seems to actually enter STOP3, even though I explicitly call:HAL_SuspendTick(); HAL_PWREx_EnterSTOP3Mode(PWR_STOPENTR...
Resolved! RM0394 SRAM2 connectivity in bus matrix
In the lower-end STM32L4, covered by RM0394, SRAM is partitioned into two parts, SRAM1 and SRAM2.SRAM2 (besides being "special" in that it has ECC and automatic erase facities), is mapped at both 0x1000'0000 and at the end of SRAM1 in the 0x200x'xxxx...
STM32G0: Encoder mode + Output Compare
I am using STM32G071RBT6. I am trying to implement encoder mode + output compare mode using same timer. Right now initially I get OC interrupt even when Tim_CCR3IF flag is 0 and once it get set it remains as it is. - Should I combine encoder and OC m...
Resolved! USB Descriptor Table and PMA Layout on STM32F103
Hi, I’m trying to better understand how the USB PMA and BTABLE work on the STM32F103. After reading the reference manual, I’m still unsure how the descriptor table size relates to the number of endpoints.I have two possible interpretations of how the...
Resolved! STM32 l476rg CAN not working
I am using STM32 Nucleo-l476rg. I am trying to use the CAN peripheral and have tried every resource I came across. I am unable to send or receive messages:I have no filter, everything is wired correctly, what could be the issue? I even made it so tha...
