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Resolved! Undocumented behavior of capture/compare registers

Hello,I tried to set a capture/compare register to a value beyond that of the auto-reload register, and the timer I used (TIM8) behaved as if the value had not been written. Reading back gives the expected value though. I haven't dug more but I'm cur...

rbraun by Associate II
  • 888 Views
  • 6 replies
  • 1 kudos

Resolved! OTG_HPRT>PENCHNG bit in STM32H743

[Not a bug report, explanation below, first post kept for context]I'm writing a USB host library for the STM32H743 rev V. Bits PENA and PENCHNG of register OTG_HPRT represent Port enable and Port enable/disable change. Port enable is supposed to be a...

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JBernard by Associate II
  • 692 Views
  • 2 replies
  • 1 kudos

Repetition Timer PWM Help

 Hello, I'm wondering if there is an obvious way to generate a limited set of n pulses from an external trigger?At the moment i'm using TIM8 in one pulse mode with repetition but my problem is that i want the White pulse train to start with the risin...

Stemcy_0-1725299151951.png
Stemcy by Associate
  • 713 Views
  • 4 replies
  • 4 kudos

Resolved! NRST Pin going low while programming for a milli second.

Hii,I am working with stm32f100 series microcontroller, where I am having issue with NRST pin, I have connected a capacitor of 0.1uF(also tried 10uF) between NRST pin and ground. Microcontroller has an internal pullup. and it is showing 3.3V at the t...

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Ragini by Associate II
  • 781 Views
  • 5 replies
  • 0 kudos

STM32H7 Custom Project Schematic review help

Hi guys,I been working on this project for some time now on my "free time"...but so far without any success.In the first prototype I have assembled all the peripherals(QSPI, eMMC, SDRAM, some I2C and SPI slaves peripherals and DSI display.).Nothing s...

pema_0-1724698352193.png pema_1-1724698368494.png pema_2-1724698389561.png pema_3-1724698407578.png
pema by Associate II
  • 921 Views
  • 5 replies
  • 4 kudos

DMA channel1 Stream 0-7 which channel to choose

Hi i m working on H732 timer1 as PWM and its working fine, but when I try to implement DMA on timer1, there is no waveform. I enclosed the DMA code below, as I declare an array of 10 PWM duty cycle values..i suspect it's the Timer1 channel1 stream th...

StanJerm_0-1725327735894.png
StanJerm by Associate III
  • 1277 Views
  • 6 replies
  • 0 kudos

Resolved! HardFault when using UART and DMA

Hi, I have a program running on a STM32U083RCT that is raising a HardFault when running at full speed, but when stepping through the code using a debugger the code appears to run correctly. I have a transceiver device connected to to USART2. I have a...

Jorgie by Associate III
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  • 2 replies
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Lora Basics Modem on STM32L073RZT6

Hello, I'm working on testing the LoRa Basics Modem V4, available in SWL2001 on github, and for now I've managed to generate the executable and download the program on the board I have, but nothing has appeared yet on The Things Network. I believe th...