Forum Posts
how to transmit data via SWO STM32H743
I can not start transfer via SWO to STM32H743.Port PB3 initialized clock feed.Initialized SWO:*(__IO uint32_t*)(0x5C001004) |= 0x00700000; // DBGMCU_CR D3DBGCKEN D1DBGCKEN TRACECLKEN //UNLOCK FUNNEL *(__IO uint32_t*)(0x5C004FB0) = 0xC5ACC...
NUCLEO-F303K8 external power supply not working
Hello to everybody,I have the NUCLEO-F303K8 and I'm trying to use an external power supply (+5V).As it is described in the reference manual MB1180, section 6.4.2, the external 5V needs to be connected to the +5V connector (pin 4 of CN4).However, by d...
STM32H743 SPI DMA NOT WORKING, CACHE DISABLED
Hi everyone,I have to port one proyect from a STM32F4 to a STM32H743. In this project it is important to use the SPI through DMA, so after reading a bit about the DMA-Cache issue in this microcontroller i decided to disable the D-Cache in order to ma...
Parallel NOR flash for extra code memory
Hello,I'm using STM32H753-Eval2 board wherein MT28EW128ABA1LPC-0SIT NOR flash is connected over parallel interface(FMC mode). I want to keep some part of application code into this parallel flash, I've referred one application note from Keil which wo...
Resolved! LPTIM with external clock (no synchronization – STM32L0)
Dear all,I am working on a project with an L081KZ and want to count pulses with a frequency higher than the clock. In the post here (community.st.com/s/question/0D53W00001EyzG5SAJ/) I thankfully got the tip to use the LPTIM as it has an asynchronous ...
I2C communication between 2 STM32 MCUs
Hello I am trying to learn I2C communication between 2 STM32F103C8 MCUs. MCU1 acts as the master and MCU2 acts as the slave. I am using CubeMX to configure the settings however I could not establish a link between the 2 MCUs. What I wanted to happe...
STM business & production sustainability forecast?
Despite its up-trending equity and healthy appearances very few we've spoke too as of late are getting accurate forecasting relevant to STM manufacturing and parts' stocks. This makes business planning difficult at our end and production impossible w...
STM32 Dual bank Flashing. Missing steps after writing data. Where do you write the app start address ?
Hi,I'm trying to write a code that can receive a new app via uart. Can erase the unused bank. Writes the new code in that bank, flips the bank boot bit and then performs a reset. I also made a small app on a PC that reads the .hex file generated by m...
