Ask questions, find answers, and share insights on STM32 products and their technical features.
Dear experts,Still not sure after reading the fine manuals. On CM7 (STM32H7, F7) if I and D caches have never been enabled after reset, can speculative data fetch and instruction fetch still occur?Is speculative access independent from caching?
Hi all,I am using a custom board designed using mcu STM32 L071CZ. I want my device to go to stopmode afte doing a certain task. I checked the current consumption in run mode, it is almost 4.7mA and in stop mode in 3.56 mA.I haven't enabled any othe...
Is it somehow possible to turn on ETM trace while STM32F4xx is running in bootROM? So far I wasn't much successful. I don't know if it's due timing (correct frequency) or that MCU uses internal HSI oscillator by default.ETM in "normal" programs is no...
I'm working on small (GCC/C-language) tests of STM32F051 with STM32CubeIde 1.8.0 on STM32F051 target. These tests are being done ---> without HAL, CMSIS or Lower Level drivers <---, so your patience is appreciated (that is, I don't intend in these te...
If the Data cache is disabled to solve dma data coherency, it reduce performance a lot? I know functions SCB_ClearDCache(), SCB_InvalidateDCache() to solve that issue. But there is a risk that an error message will not occur even if omitted by mista...
Hi,I have the following code: which clears the WXTI9_5 interrupts, enables the EXTI9_5 interrrupts and provides an interrupt handler for these.void clearAll_EXTI9_5_IRQ(void) { __HAL_GPIO_EXTI_CLEAR_IT(GPIO_PIN_5); __HAL_GPIO_EXTI_CLEAR_IT(GPIO_PIN...
Hello,I am working on stm32h745. I have to use 3 spi in interrupt mode, then how I can know which spi is get interrupted?
Hello,Today, I'm using the MX25LM51245GXDI00 external flash memory on the demoboard B-U585I-IOT02A to store some data and to retrieve them using STM32CubeProgrammer. In order to do it, after erasing a sector (4K bytes), I configure OCTOSPI2 (dedicate...
Hello everyone!I'm writing a STM32F446RE-based flight computer for a rocket. I want to use internal flash memory to keep some key data like base pressure or flight time. So if a power failure happens, the system can keep the base data.These are the t...
