About BarryWhit

BarryWhit · 2024-06-23

BarryWhit · 2024-06-16

Hello ST, Today, in two separate threads, I've had to walk two separate newcomers to STM32 through the pitfalls of trying to trigger a DMA to an arbitrary peripheral from a timer event. The threads are:what-are-gpio-events-how-do-i-connect-an-event-t...

BarryWhit · 2024-06-12

Hello All, I'd be glad to hear from someone who has used PSSI in a high-bandwidth application. I'm interestedin hard numbers on sustained throughput with/without flow-control. My intended application is to interface some member of the STM32 product l...

BarryWhit · 2024-06-11

Hi,Since there is no obvious to ping an ST rep directly from an ongoing thread, I'm posting these questions in a new thread in the hope that ST will respond with answers. These arose during discussion in another thread:How Can I Provide a 1mhz HSE B...

BarryWhit · 2024-06-06

Hi all, I've been working on reducing the power consumption of a project I'm working on using the STM32G431.Stop modes are not an option on this chip since I need to keep some peripherals active, but I've beenable to reduce the needed system clock to...

BarryWhit · 2024-06-23

Dear @Imen.D, Please see this thread from 2018https://community.st.com/t5/stm32-mcus-products/stm32f4-hsi-accuracy-drift/td-p/360021The poster complains that the datasheet claims 1% accuracy for the RC oscillator over full temperature range,but other...

BarryWhit · 2024-06-23

@bymrz, you seem to be producing a commercial quantity of boards and can perhaps put some engineering towards resolving this issue for others as well.1. Are you able to put together a small program that measures the HSI frequency of your "good" and "...

BarryWhit · 2024-06-23

Many sites don't want to spend the engineering on building and maintaining a really-good search engine. Instead, they delegate searches to general engines like google, bing, duckduckgo, etc.Paradoxically, it is fairly often the case that sometimes ...

BarryWhit · 2024-06-22

Obviously you could use CubeMX to select a chip and verify which peripherals are configurable, anyway.Anyway, there is also the STM32 MCUFinder, which is obviously like a local version of the product tables. I think USB-DFU is fairly universally supp...

BarryWhit · 2024-06-21

@waclawek.jan wrote:Data cache issue?Good Catch.From README of example ADC_DMA_Transfer for H743 (probably applies to H753 too) @Note If the application is using the DTCM/ITCM memories (@0x20000000/ 0x0000000: not cacheable and only accessibleby t...

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Where should I report errors in ST documentation/Appnotes?

Timer events as DMA triggers - Improving the current situation in CubeMX/HAL

Seeking information on real-world PSSI performance

Question: Power consumption and clock sources for Low Power mode In G4 Family (HSI, HSE ,HSE Bypass)

How can I provide a 1Mhz HSE Byp clock for low power... without wasting more power than I save??

Re: STM32 MCU datasheets: Expected preliminary updates

Re: STM32f446 Usb Dfu Bootloader Problem at High Temperature

Re: More search nonsense

Re: Which peripherals are really in a product?

Re: STM32H753: DMA sometimes does not transfer data