Resolved! Does i++ or ++i matters in loops in terms of processor cycles consumed in H7 MCUs?
Does i++ or ++i matters in loops in terms of processor cycles consumed in STM32H723 MCU?Using CubeIDE. Optimization: O0
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Resolved! [SOLVED] STM32G431 : reading the current value of USART2->CR1 (and display it , for arduino style debugging)
QuotePost[EDIT] displaying the values of the registers works on STM32duino arduino consoleHi ,I am in the arduino world ; for some more particular tasks , the existing API is not enough , so I have to write my own code and debug itI am trying to spy...
Resolved! Looking for a suitable MCU for USB to 4 UART and I2C
Hi Sir,I'd like to choose STM32F103V/R/Z to achieve the USB to 4UART and I2C in my system.Because it's said this MCU's USB support up to 8 bidrectional end ports. I don't know whether it's right or not.Could you help to review it or propose another s...
Writing a program that updates itself at runtime
How can you write a program that updates itself for an STM32, eg. for an STM32F103C8?I'm not talking about a bootloader, since (as far as I know), a bootloader lives from (say) 0x08000000 to 0x08001000 in Flash and then updates another program (anoth...
Data received altered after some itteration using HAL_SPI_Receive_DMA()
Hello,I'm using two STM32F4 nucleo boards and my goal is to transmit data unidirectionnaly from one board to another using SPI in a loop.The first board is configured as a Master and it only transmits data. And the second one is configured as a Slave...
Resolved! DMA interrupt not triggering after init
After setting configuration registers in HAL_DMA_Start_IT, DMA fails to fire back interrupt, HAL_DMA_IRQHandler(). The TransferComplete call back routine is not called but only once after reset since HAL_DMA_IRQHandler() is called only once after ini...
Can we left pins VFBSMPS and VLXSMPS of STM32H747AII part if SMPS functionality is not used
We are not using SMPS functionality of STM32H747AII MCU. Can we left VDDSMPS, VFBSMPS, VLXSMPS pins unconnected?
Resolved! EEPROM Emulator causes hard fault
MCU: STM32H753VI Scenario:Requirements specify that I must use internal flash memory to store error counters for our fault management system. I was going to directly write to flash memory using the built in HAL commands, but found that most people se...
STM32F401CC bootloader problem
Posted on June 28, 2017 at 14:27Hi all,i have two custom board with a microcontroller STM32F401CC in a 48pin package. One of these two micro is not working anymore due to a programmed option byte during a debug session. ST-link tell me this micro ha...
Resolved! Is the word(uint32_t) access atomic in shared memory in dual core STM32H7
Hi Friends,In STM32H7 MCU, both M7 and M4 can access shared memory, such as D3 SRAM4. I am going to use a D3 SRAM4 address as a place to share some status information between M7 and M4. If a 32bits word is defined shown as below, can the access from...
