STM32 MCUs Products

Ask questions, find answers, and share insights on STM32 products and their technical features.

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

How to manage 2 channel PWM with DMA - STM32L073

We try to generate audio signal with 2 PWM signals. We use TIM2_CH1 and TIM2_CH2 with DMA1 channel 5 and channel 3. This two PWM signals must be synchronized, but we noticed some delay between this 2 channels, which unfortunately is not constant. For...

mrasz.1 by Associate
  • 529 Views
  • 1 replies
  • 0 kudos

In Rx Polling Mode, HAL_UART_Receive() is stuck in UART_WaitOnFlagUntilTimeout() waiting for the RXNE flag to get set in the UART's Status Register.

I'm using a STM32F407-Disc1 board, and my polled HAL_UART_Receive() is stuck waiting for the RXNE flag to get set in the UART Status register. Ironically, when using the STM32CubeIDE debugger and looking at the SFR registers for my UART, it looks li...

RJepp.1 by Associate II
  • 687 Views
  • 2 replies
  • 0 kudos

STM32U5 ADC internal channel

Hello,I'm facing some issues sampling ADC internal channel in of STM32u575.In particular these are the steps I'm following:VDDA enableADC Clock ConfigurationHAL_ADC_Init (&ADC_Handle[i])Interrupt configuration.Then, I configure the ADC channel to rea...

Resolved! VREFINT - sporadic false(?) readings

Using a STM32F091 board, I set up the ADC to:sample at the longest selectable sampling time (239.5 cycles)clock source is the internal 14 MHz RC oscresolution 12 bitsequence of all available channels incl. vrefintAt startup, there is a slight deviati...

SKled.1 by Senior II
  • 1658 Views
  • 6 replies
  • 1 kudos

STM32U5 controller RTC accuracy

Hi,I am trying to enable RTC functionality in Nucleo STM32U575ZI board. As one of my requirement I wanted to understand how much accuracy we can get for STM32U5 controller ? Any documentation or suggestion would help a lot.Thanks!!

NM.1 by Associate II
  • 623 Views
  • 2 replies
  • 0 kudos

I am using STM32F051K6U7 HAL_GetTick()

Hi ,I am using STM32F051K6U7 for one of our project.For Timing the HAL_GetTick() is low accuracy .every 240 seconds there are 1 to 2 seconds off .I am using a f0discovery board, so I am using internal RC occilator. Is this expected or is there an er...

ck.1 by Associate III
  • 468 Views
  • 1 replies
  • 0 kudos

aci_gatt_update_char_value returns undocumented error code

Modified the BLE_Throughput example to use indication characteristics instead of the notification.I also set the interval to 1 second for debugging purposes because I saw that only 1 IND is read by the client per connection interval.I see that SendDa...

tguly.1 by Associate III
  • 963 Views
  • 1 replies
  • 0 kudos

Maximum frequency of DAC's external trigger

Hello, my NUCLEO-H723ZG is running at 550 MHz and using maximum 137.5 MHz TIM for DAC triggering but I want triggering faster than this so, can I use external clk with frequency more than 137.5 MHz?

AMagk.1 by Associate II
  • 594 Views
  • 1 replies
  • 0 kudos