Forum Posts
User space for storing some bytes in stm32h7 MCU in runtime
hi, i want to store some bytes ( 4 Bytes) of data in MCU flash registers in program run time . In flash user locations are available or not. If available how can i assign the bytes to flash locations in run time.
STM32G4 ADC running in low speed
The new STM32G474RE has an ADC that can run up to 4MSPS.I'm doing a project where I need to do the sampling in 1MSPS. But the maximum sample rate achieved was 300kSPS. When I set timer 1 for the ADC trigger to 500kSPS the "while" loop simply locks. S...
STM32H743 - Clarification needed on simultaneous usage of two FD-CAN peripherals
I need clarification on part 2.14.2 of Errata - Wrong data may be read from Message RAM by the CPU when using two FDCANs. As a workaround, it's stated there that "To avoid concurrent read accesses between the CPU and FDCANs, use only one FDCAN at a t...
STM32L073z-eval 32.768 LSE issue
Hello, i have some trouble with my L073z-eval board. I try to use RTC with LSE and found it very inaccurate. I checked the frequency using TIM21 (capture-compare mode with remapped LSE as input) and see very instabbility value - some times value goes...
Resolved! Can the PC2_C pin be used for digital I/O (STM32H743)
This seems very confusing. In the manual the pin is marked ANA which it annotates as Analog-only input, and yet it has a bunch of special functions that are digital in nature (e.g. SPI_MISO, FMC_SDNE0) and both input and output. CubeMX allows me to s...
Is there any way to set a specific GPIO high when entered a bootloader
I am programming the uC via UART that is connected via a Transceiver. The transceiver has an DE (Driver Enable) pin which is active high. Unfortunately, it has a pull down instead of pull-up in a design, therefor the uC can hear but can't talk back. ...
Resolved! STM32F3 - what is ITR2 for TIM3?
RM0316 says it's TIM5:but there's no TIM5 in the 'F3 (except 'F373, to which RM0316 does not apply).ST please clarify.JWPS. Textual search finds TIM5 also in description of the TIMx_CCRx registers, obviously copy-paste relics.
STM32F469I-DISCO USART6 (Arduino shield I/F UART) receive trouble
Dear sirs,I'm trying to use STM32F469I-DISCO USART6 (PG9 as RxD and PG14 as TxD).The transfer is succeed (I checked using a logic analyzer). But when set the transfer data to the DR register, 0x7F is appeared the DR register and RXNE bit is set, with...
