Forum Posts
Scanning multiple channels using polling on STM32f401Re
Dear ST community,I am using ADC to measure different voltages and I need a total of 15 channels and I need to measure ADC in a polling mechanism. When I useHAL_ADC_GetValue(&hadc1);It gives me value for only one ADC channel I am unable to receive va...
Offset correction to results from ADC conversion properly not happening
As per the below screenshotThe result of regular channel data is to be subtracted with an offset value. But this works only when the regular conversion sequence starts with an odd channel number and offset correction is not happening when the regular...
DMA UART transfer error "HAL_DMA_ERROR_TE"
Hi all,I'm trying to setup a DMA TX UART code using STM32H743VI MCU. The problem I'm facing right now is every time I call HAL_UART_Transmit_DMA function, I get a HAL_DMA_ERROR_TE in my DMA error call-back. The actual line of code is as follows:char ...
Resolved! Wrong min. sample time mentioned in the STM32L475 data sheet.
The min sample time is 2.5 ADC clock cycles and max.ADC clock is 80MHz, with this the sampling time is coming as 31.25ns but you mentioned as 18.75ns. Here, I think ST has taken the ADC clock cycles are 1.5. I felt it as a bug.
Resolved! How to use TIM2 ETR and TIM2 CH1 at the same time?
On F4 (and also other families) The TIM2_ETR and TIM2_CH1 are both on the same pins.The pins are PA0, PA5 and PA15.How can I configure the timer/gpio to get ETR on PA5 and CH1 on PA15 ?The alternate function numbers are the same for ETR and CH1...I n...
STM32H7 WWDG1 on Cortex M7 - Early Wakeup Interrupt Context Backup
Hi,I am looking on getting CM7 CPU Context backup inside Window Watchdog Early Interrupt handler (HAL_WWDG_EarlyWakeupCallback). The CPU context should include LR, PC, PSR, R0 to R3 and R12.Any help, example or code reference is appreciated.Thanks
Is it possible to use STM32H750VB with two QSPI Nor Flash in Memory Mapped & Read/Write Mode
Hi, i want to use STM32H750 with two QSPI Nor flash (W25Q128JV). Purpose of one of them is store static libs and constants. So i will use in memory mapped xip mode. The other one is using in read/write mode for store data.Before, i have used both of ...
