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What is USB composite device?

Hello,i found an error in the Datasheet DS12712 Rev 4 of the STM32G473 Controller.Can someone clarify please what will be correct:In Chapter 4.11 - "Alternate functions" it tells, that PA10 has an alternate funktion AF2 for I2C3_SCLBut in Chapter 4.10 - "Pin definition" the I2C3_SCL is not listet for pin PA10 in the Alternate functions column.So will the I2C3_SCL be available at PA10 or not?

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Wating for your response..Sincerely yours, Jake Kang.Edited) It is because the datasheet said that VINV is for INVERTER INPUT. If anyone have an idea, please keep me in the loop.

Hello, I need to send data from STM32WB Nucleo to the computer (any symbol), I spend many days, but didn't find any simple example for that in Google. I was surprised usually I never had a problem like that... Please, can you share a simple example of how to send data/symbol/something from STM32 WB to the computer via BLERegards,

Learning how to use the STM32WB55RG alongside the 'Mastering STM32' by Carmine Noviello. I followed the instructions for setting up interrupts to use the NUCLEO hardware buttons, but when I build, I get a warning that 'HAL_GPIO_EXTI_Callback' defined but not used [-Wunused-function]. I have pasted some snippets of my code to help. ​I have added toggling the state of an LED to the Handler functions to ensure they are being called. What seems to happen is that the __weak function is called, despite me placing a definition of the callback in main... any help is appreciated.EDIT: I should also mention that the interrupts do not work, the callback is not called as per the warningstatic void MX_GPIO_Init(void) { GPIO_InitTypeDef GPIO_InitStruct = {0};   /* GPIO Ports Clock Enable */ __HAL_RCC_GPIOC_CLK_ENABLE(); __HAL_RCC_GPIOB_CLK_ENABLE(); __HAL_RCC_GPIOA_CLK_ENABLE(); __HAL_RCC_GPIOD_CLK_ENABLE();   /*Configure GPIO pin Output Level */ HAL_GPIO_WritePin(GPIOB, LD2_Pin|LD

Hello, we are testing the PMIC1 for a new design, so we bought a STEVAL-PMIC1K1 eval kit.However, after some testing with the GUI, the STEVAL-USBSTICK suddenly stopped working.It seems to be some kind of current drain that killed the device, because now the device is not detected on the computer. The PMIC1K1 isworking properly.Is it possible to buy a replacement just for the USBSTICK ?Thank you

I accidentally deleted stm32l4xx_ll_utils.c from my project. How do I restore that file back into the drivers folder?

Hi,I have a horizontal scrollwheel where i want to scale the item when it is animating to the next position. I am a bit lost how to start with this. I had a look at move animator but that doesn't seems like the proper way. I need a hook from the scrollwheel animator I assume. I created a selected style where the scale is 1 en the regular style 0.5 but that doesn't look good. I am using a STM32G0 + 128x128 grayscale oled display

Hello, I have an application whereby I need to use one reader IC with 10 antennas. It does not need to read very quickly, once per second or so. What is the best way to do this? Each antenna will be about 1.5" (38mm) spacing in a line. So the length of the farthest antenna is about 15" (380mm) from the IC. Application is like a vending machine. Should I:a) build a antenna multiplexer from relays or RF switches right at the IC?orb) put each relay right next to the antenna?Or is there another way?Read distance is low, about 20mm to a tag approximately 20mm in diameter.Thanks,Derek

Hello to everybody,I have program for stm32f103 mcu. Now I want to do my SPI transmit routine using interrupt.Before:HAL_StatusTypeDef status = HAL_SPI_Transmit(&afe_spi, (uint8_t*) pData, 4,100);Now I tried this (and many variants also):HAL_StatusTypeDef status = HAL_SPI_Transmit_IT(&afe_spi, (uint8_t *) pData, 4); while (status != HAL_OK){ status = HAL_SPI_Transmit_IT(&afe_spi, (uint8_t *) pData, 4); }But data isn't sended. And in debug mode i can see:My project settings:Other interrupt also not works.Best regerds, Egor

For the STM32U575 SFRs in STM32CubeIDE, the LPTIM1 DIER_output has a CC1IF instead of CC1IE.Also what is the difference between DIER_output and DIER_input ? And why are there bits name different ?

Dear Sir.I am using the example TFM_Loade_Non_Secure , It compiles I set for Download NonSecure App Image , when I send any file*.elf with TeraTerm.File,Transfer.YMODEM.Send , then the programreply with "Abortes by user".Please Advise

Autec bought the above MPN, but I can't find the marking code in the datasheet or in other technical documents.Where can I find thin information?Thanks!

Hello,I have an issue to place a ASCII string in flash when using CubeIDE and the GCC compiler:#define APP_INFO_ADDR_2   ".ARM.__at_0x08000200"const uint8_t my_text[] __attribute__((section (APP_INFO_ADDR_2))) = {"Hallo"};when I compile this code (no opimization), I get no errors, but at the hex file at address 8000200 there is no "Hallo" string located.  When I compile the same code with µVision and the Keil Compiler it works. I also searched for this issue and the only working solution I found is, to define a separate section in the linker script and then place this string in this specific section. But to change the linker script for this task is not my preferred way.So the question for the community here is:What do I need to change here to see also this ASCII string in the hex file, when using GCC and CubeIDE?BR

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Hi Guys,So with TouchGFX we can end up with lots of graphics data that resides in external flash.ST-LINK_gdbserver I think uses the ST Programmer to flash the elf which flashes the normal flash and the external flash.If there is a lot of data then this external flashing takes a long time and most of the time this data is not changing.Is there a way of setting things up so that ST-LINK_gdbserver will only flash certain sections to avoid this repeated flashing of exactly the same data, its pretty annoying to change one line of code and then have to wait minutes for it to program the external flash.

Hello.I use the ST25DV-Discovery to test the lower power mode of the ST25DV04K.But I run the demo downloaded from the ST.When I use the low power mode,the current consumption is up to 145uA.In the document of ST,the current consumption is only blow 1uA. How can I do to reduce the current consumption?

I am currently using a TSC2007 to detect touchs on a screen. When working in blocking mode this is correctly working as the TSC2007 correctly streches the clock and the HAL correctly waits for the data to be readyWhen working with interrupts the HAL fails to wait as a NACK and STOP interrupt is triggered which cancels further transmissions of bytes.I can avoid the TSC2007 doing the streching by manually waiting a specific amount of time. The probem is that depending on the waiting time the read value is incorrect.The current solution I am using is calling my TSC2007 driver in blocking mode in a low level priority freertos taskCorrect clock streching and read when using HAL_I2C_Master_Receive Read cancelled by HAL when using HAL_I2C_Master_Receive_ITRead correctly done with HAL_I2C_Master_Receive_IT(but incorrect values reported by device) if I wait for an amount of time that requieres Any idea how to support clock streching in master mode with Interruptions?

Hi, I am developing an application which involves UART for the STM32F411VE, I am using FreeRTOS and I want to know if the HAL APIs and the HAL_UART_Transmit_IT in this case are thread safe, thanks

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I recently bought the STM32L0538-DISCO board. I have seen the following video in youtube where you can see the functions of this board in full. Where can I find the source code for STM32Cube?On the info page of the board I have not found one that works for STM32Cube.Thank you very much

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I tried to convert audio files to HEX files，and delete all the lines in the hex file before the starting line of the audio content.Then I program the HEX file to the FLASH, but can't play. I can play with the demo program.Could you tell me how to select an audio file ? Or Provide appropriate demo audio files.