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UART CTS signal stuck at high after framing error

Hi all.We are using a bidirectional UART with hardware-flow control lines (RTS/CTS) between two microcontrollers.One of the controllers (A) is an STM32H7, the other controller's type (B) should not be relevant. I write this from the perspective of A....

mwb_1-1711018482094.png mwb_2-1711018639890.png mwb_3-1711018737948.png mwb_4-1711019070363.png
mwb by Associate III
  • 659 Views
  • 0 replies
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Resolved! STM32F407 TIM2 DMA driving neopixels

I have been reading a bit about neopixels and the communication protocol they work. I have been searching for a library for the WS2812B neopixel but could not find one that would work out of the box hence I have decided to write my own neopixel drive...

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LPetr.1 by Senior II
  • 6432 Views
  • 11 replies
  • 2 kudos

Resolved! pwm ws2812 not workin

Hi! i am doing example pwm ws2812 with dma, configure the time 1 with ARR=60, using clock= 48 mhz, my pwm not working full buffer i don´t know why not work full buffer, the pwm have 12 pulse, i am sending for one led ws2812 is 24 pulse./* USER CODE ...

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jdo by Associate II
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  • 8 replies
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Resolved! SWO stops collecting data after a few packets

I'm trying to do some debugging using SWO on an STM32G474. After a very short amount of time no new packets are displayed in CubeIDE (usually after ~2500 packets). I limited the SWO frequency to various values between 100kHz and 8 MHz. Using an oscil...

Herm by Associate III
  • 2744 Views
  • 13 replies
  • 2 kudos

Resolved! PWM in Stop2-Mode with LPTIM2

Hello,I am using STM32U575 and would like toimplement a PWM output. This should also work in Stop2-Mode.Clock for the LPTIM is LSE. It works with LPTIM1 and 3 without any problems.To generate a PWM in Stop2-mode, I use the LPBAM with LPDMA. Now I wou...

JoachimO by Associate II
  • 1128 Views
  • 5 replies
  • 4 kudos

Resolved! possible errata in STM32L4R5 reference manual (rev9)

page 1320; timer 2 input pwm mode"1. Select the active input for TIMx_CCR1: write the CC1S bits to 01 in the TIMx_CCMR1 register (TI1 selected).2. Select the active polarity for TI1FP1 (used both for capture in TIMx_CCR1 and counter clear): write the...

b.a. by Associate III
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  • 3 replies
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