About Uwe Bonnes

Uwe Bonnes · 2024-10-25

Hello, please mention RCC_BDCR_LSESYSEN in U0 reference manual in the LCD chapter. This is a new requirement when running LCD with LSE on STM32U series. Maybe chapter with other devices to run on LSE clock will profite too. Regards

Uwe Bonnes · 2024-10-24

Hello,probably I miss something, but I have searched long enough so things start to get unclear.I have set up RTC on STM32U0, so I expect is to be running. But ist does not free running:<(gdb) mon sTarget voltage: 3.24VAvailable Targets:No. Att Driv...

Uwe Bonnes · 2024-10-23

Hello, I asked this several times, with no avail so long, lets try another time: E.g. "https://www.st.com/en/microcontrollers-microprocessors/stm32-32-bit-arm-cortex-mcus/documentation.html"sorts the documents alphanumerical by their name. In most ...

Uwe Bonnes · 2024-10-14

AN4879 Rev 8 in table 7 does not list the HS phy for STM32U59|A|F|G

Uwe Bonnes · 2024-09-28

AN2606 Figure 115." Bootloader V9.x selection for STM32U595xx/99xx/A5xx/A9xx" show that the Bootloader USB detection aborts DFU startup to a system reset when no quarz is found. Does this abort also happen if an external HSE oscillator is used?

Uwe Bonnes · 2024-11-20

@Cesare: You need to enter Mouser/Digikey from the website of your country, e.g. for me in germany de.mouser.com/de.digikey.com. Then on checkout you are offered a DDP shipping option. If you enter from the US or international site, no DDP option is ...

Uwe Bonnes · 2024-11-20

Why are green and yellow voltages different? Are external pull-ups used on MCO and GPIO? Why the dropouts on MCO when GPIO is low? Show your schematics!

Uwe Bonnes · 2024-11-20

At what voltage does the first edge happen? For me it seems this is below minimum V(POR) = 1.9 Volt and probably also below minimum V(PDR) = 1.88 Volt . This would mean that the part is outside the "5.3.3Embedded reset and power control block charact...

Uwe Bonnes · 2024-11-19

Mouser/Digikey are based in the US andsell to private persons. Only european base companies like RS/Farnell restrain to sell to private customers, because EU private customers have special right with EU company as compared to company customers.So as...

Uwe Bonnes · 2024-11-19

Sorry, I did not read carefully enough. As I read the scope picture, the long first period happens well below 2.0 Volt. HSI48 is only characterize from 2.0 to 3.6 Volt. I expect HSI48 to be much slower below 2.0 Volt. Perhaps route HSI tp MCO and me...

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Mention RCC_BDCR_LSESYSEN in U0 reference manual in the LCD chapter

Help with STM32U0 RTC not running wanted

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STM32U59|A|G with integrated usb hs phy

Does STM32U595 DFU work with external HSE oszillator?

Re: Can I skip customs fees when purchasing a Nucleo board on ST ecommerce?

Re: Undocumented behaviour STM32C011F4U6TR

Re: Undocumented behaviour STM32C011F4U6TR

Re: Can I skip customs fees when purchasing a Nucleo board on ST ecommerce?

Re: Undocumented behaviour STM32C011F4U6TR