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[rtems] when enable idle interrupt uart receive nothing

HI, ALL !i am debugging the stm32F407 uart ON RTEMS, found that the idle interrupt will effect the RXhave cleared the idle flag by pragma but now i can not receive uart data, i don't know what's the erroruint32_t *USART2_SR = (uint32_t *)0x40004400;u...

TIM2 interrupt becoming de-activated

Hi all,I have an STM151 system (our own PCB) running FreeRTOS. As recommended, I leave TIM6 for the FreeRTOS timer,. and am using TIM2 to provide a source for the HAL_Tick timebase.In the BeforeSleepTasks (ie when all RTOS tasks are idle and the CPU...

SysTick

Hi guys, I am trying software timers without using interruptSysTick->CTRL = 0x5; SysTick->LOAD = 0xFFFFFF;SysTick->VAL  = 0; when start the program, what will happen with SysTick->VAL  = 0; it is value start with 0xFFFFFF or 0?

Zek_De by Senior
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Resolved! STM32F7 DMA Circular Mode Not Circulating

I'm using an STM32F769 for a project. I'm trying to continuously stream ADC samples to a buffer. I can fill the buffer without issue, but the DMA never recirculates back to the beginning. I don't get any DMA errors, and the ADC is still running (I...

Resolved! Clock source for USART3/4 IN STM32G070

STM32G070. It is said there are 4 USARTS in the datasheet. For USART3/4, there is no place talking about the clock source for them. Would you please tell us what's the clock source for the USART3/4?

Mmei by Associate
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mslow-flash-data GCC option for STM32

Hi,could anyone explain me why the mslow-flash-data of the gcc compiler can improve the performance for a stm32f3 processor (m3/m4 type in general)?Is this related to the integrated cache of the core?Thanks.