STM32H7A3/7B3 operating frequency
Why the operating frequency of ATM32H7A3/7B3 is limited to 280 whereas the other families in H7 series supports minimum of 480MHz
Forum Posts
How to use External Loader to load initialised data into NOR Flash on Octo-SPI interface on STM32L552E-EV
Hi all,I'm working on an STM32L552E-EV and trying to declare some constant data into the NOR Flash connected on the Octo-SPI interface. I want to have the Octo-SPI in memory-mapped, so that the constant arrays can be accessed easily in my code. To in...
Octo-SPI memory-mapped mode speed for H735
Hi,We are using the OCTOSPI2 on a H735 in memory map mode.We are copying 32 bits values one by one, from the internal RAM to the Octo memory.We transfer around 5000 x 32 bits in 2ms which is around 10MB/s.I think, it is a bit slow. What is the maximu...
Resolved! Using OCTOSPI in Memory Mapped mode with an QuadSPI SRAM
Hi guys,I am using an STM32L552ZET6 and I would like to extend the RAM using an external SRAM chip (23A1024-E/TS), that has an QuadSPI interface. I would like to know if I can use STM32L5 OCTOSPI interface in memory mapped mode with the above mention...
STM32F103 upper flash pages corrupted/erased.
Dear ST community,I was wondering if you could help me with a problem I'm having with an STM32. I have a system containing an STM32F103VET6. The last flash pages are used to store settings/parameters. 2 redundant flash pages are used. This system...
Switching Port Pins between Alt Function and Normal mode
Hi All,In a situation where someone might be flashing an LED using a Timer Output (eg Alternate Function Mode connected to a Timer channel output), what if you want to then turn the LED on solid or totally off and then maybe back to the Timer flashin...
Possible to use all 3 DAC channels simultaneously?
In reading the manuals and datasheets, it seems like it should be possible to simultaneously use all 3 channels (DAC1 Channel 1, DAC1 Channel 2, and DAC2 Channel 1) of the onboard DACs at once, emitting separate values on each. However, no matter wha...
Resolved! Undefined reference in EEPROM emulation package
Hi all,I'm trying to implement manually the ST EEPROM emulation package.But I got stuck at a undefined reference: I included in the right build paths and in the IDE I can perfectly jump to the EE_Init() function.So the IDE does know where to look, bu...
STM32H747 HSEM issue
Hello,I am trying to manage data transfer between the 2 core of the STM32H747.My problem is all hardware semaphore are locked just at the initialisation phase ( MASTERID 0X03 , Core M7) After Hal_Init(); & SystemClock_Config(); all is free.after __HA...
STM32H7 FMC Interface to External Memory. Running code from external memory.
Hi,I am considering upgrade from STM32F4 series to STM32F7 or STM32H7(single core) series. However, the H7 embedded memory is not enough for the requirement. I would like to run simple RTOS scheduler. So there is need for external memory.-QuadSPI int...
