STM32 MCUs Products

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Cant make http work on GSM sim7080

Connected to STM32F411CE I know this post is not fully related to STM32 but I am posting here as this forum is somewhat active so I can get some help. SIMCOM forums are pretty much dead. I am interfacing sim7080 with stm32, but for this test I am bas...

HZaib.1 by Associate III
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  • 2 replies
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Resolved! Basic Schematic for STM32H755

Hello,I am working on a project to design an IO and motion controller board using STM32H755 mcu. Could you please review the attached basic schematic design for the mcu to avoid any design related issues that may arise later. +3.3V power is coming fr...

damha by Associate
  • 1274 Views
  • 2 replies
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STM32H7 USB HID Driver

Hello All,Greetings,This post is regarding USB in STM32H7 series. In my project STM32H743 is used as custom HID. My board is used in 5 different configurations(5 PID/Device).  I am using firmware package of STM32Cube_FW_H7_V1.10.0 as a reference driv...

KGane.1 by Associate III
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  • 2 replies
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How does HSI48CAL get loaded into RCC_CRRCR

Hi ST Community,Does anyone know how the HSICAL48 value gets loaded into RCC_CRRCR? The RM says "These bits are initialized at startup with the factory-programmed HSI48 calibration trim value", so I assume the trim value is stored somewhere in system...

TKoja.2 by Associate II
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  • 5 replies
  • 1 kudos

Nucleo STMH745ZI-Q USB OTG HS Host won`t work

I am trying to enable USB host work. I added  HAL_PWREx_EnableUSBVoltageDetector(); into void MX_USB_HOST_Init(void). and followed git examples for H7. But could not make it work(( now green VBUS led is highBut my device is not connected. When I turn...

vbus.jpg

Resolved! UCPD sink on STM32G4

Is it possible to implement UCPD sink on a stm32G4 without RTOS. What all does that entail? What are the pros and cons?

RMas by Associate II
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  • 2 replies
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Resolved! STM32H73x: HSE / LSE oscillator levels with passive crystals

Heyho,there's lots of info in the datasheets and the AN2867 about the specs of the HSE / LSE oscillators with passive crystals...But I'd like to have some "measurable" *** specs, so that I can compare a real life custom board, which means:voltage lev...

LCE by Principal II
  • 1069 Views
  • 4 replies
  • 2 kudos

Resolved! USB Issue when porting from STM32F072 to STM32L072

Hi all,I'm porting a project from a F072 (Nulceo-F072) to a custom PCB with a STM32L072.The board is going well, except when I try to use the USB (CDC mode).When I plug it into my PC, the OS can see it -         Bus 006 Device 072: ID 0483:5740 STMic...

PGump.1 by Senior III
  • 1351 Views
  • 7 replies
  • 2 kudos