Solved

For my project I'm using an STM32F743VIT6 with ADC1 and ADC2 in 16-bit differential mode.In the reference manual (RM0433) §25.4.7 it is written:Converted value = ADC_Full_Scale / 2 x [1 + (VINP-VINN)/VREF+].For 16 bits, ADC_Full_Scale is 0xFFFF. What exactly is ADC_Full_Scale / 2 ? 32768 (0x8000) or 32767(0x7FFF), the value for 0V input?I ask this question because in both cases there are not the same number of steps between 0 and the median value and between the median value and the full scale!

Hello,I have a question about the usage of the MCE in the STM32H7RSI have the STM32H7S78-DK boardI'm starting with a project that show images to LTDC with images on the flash (copy with DMA2D) and the framebuffer is on the PSRAM.My project works with this tuto to get the flash running : https://github.com/ST-TOMAS-Workshop/stm32h7s_workshop/tree/main/1_external_memoryAnd this one to have MCE working : https://github.com/ST-TOMAS-Workshop/stm32h7s_workshop/tree/main/3_external_memory_encryptionThe project seems to run well beacause my led blink like it should but !defining my images in "const uint16_t ecran_start" now (since MCE is enable) gives me black images (in debug session i see the variable in Expressions correctly) .Removing the const the images shows but by internal ram will be filled very quickPutting the image in my PSRAM section it is glitched on the screenMy framebuffer is in PSRAM and works because DMA2D show a red rectangle that i programmed (DMA2D R2M)Putting framebuffer

HelloI have the issue, GPIO pin initialization to specified mode isn`t generated.I can`t find ''pin reservation'' in pop-up from right click on pin or in any tab (pinout & configuration -> gpio mode configuration)It`s dual-core project for stm32wl55jcix, STM32CubeMX version 6.13.0 (linux)

Hello,Excuse me for being such a noob here but I'm having an issue with an STM32H7A3RTI6. I flash a basic blinky program with the stlink and then when I go to disconnect/reconnect the stlink to supply power to the chip it doesn't start up the program. I have to manually set NRST to ground to start the program again.Is there a way to toggle this pin at power up or am I doing something wrong?Thank you.

Hello, Stm32cubeprogrammer installation does not proceed to the final stage, it remains at step 8 and is not completed. I tried the program on three different PCs with administrator rights, the result is the same, the installation does not complete.

Hello,I'm developing a system based on a ST25DVxxKC (tag side) and a ST25R3916B (reader side) and I need to use the FTM feature. This is what I'm currently testing:- The reader detects the tag. (That part works fine.)- When detected, the reader sends a message to the tag using FTM. (That part also works fine, at least no RFAL error.)- The tag detects it (I set up GPO wtih RF_PUT_MSG_EN and  RF_GET_MSG_EN), the flag in IT_STS is RF_PUT_MSG as expected.- The tag then reads the message length (MB_LEN_Dyn register) via I2C. The length is correct, it's the exact length of the message sent by the reader (in my case, 152 bytes).- The tag then reads the mailbox buffer @address 0x2008. Successful, no NACK.- But the content I read is NOT the data sent by the reader, but the first NDEF record that is stored into the tag's EEPROM (followed by zeroes). This could be due to a bug on my side, but I don't explicitely read any EEPROM user data in this test, neith

It's possible to set an interrupt priority for a pin in STM32F411 MCU, right? My PC13 pin (user button) is set to GPIO_EXTI13 and I want to give it the preemption priority 3 in the NVIC (STM32Cube IDE ver: 1.18.1) but it's seemingly not possible! Its value is zero and immutable!Here's a screenshot:

Hello,I'm attempting to make my MCU shift between STOP and RUN mode using a button. When I press the button the CPU stops, however, upon pressing again it fails to start the CPU. I know this form the LED indicators.The strange part is that when I place a debug point, or anything debug related, the CPU wakes and immediately and runs the ISR as if it were waiting for the stop mode to resume.Is there some setting I need to enable to get the GPIOs to funtion in stop0? I have had a look at other forum posts and MX examples but have not seen anything, or I have missed it.My ISR:void HAL_GPIO_EXTI_Falling_Callback(uint16_t GPIO_Pin) { if (GPIO_Pin == Button_Pin && powerDownState == 0) { powerDownState = 1; HAL_GPIO_WritePin(Green_LED_GPIO_Port,Green_LED_Pin, GPIO_PIN_RESET); // Enable pull-up on button HAL_SuspendTick(); HAL_PWR_EnterSTOPMode(PWR_MAINREGULATOR_ON, PWR_STOPENTRY_WFI); } else { HAL_ResumeTick(); powerDownState = 0; HAL_GPIO_WritePin(Green_LED_GPI

Hello. I am researching for development of a multi channel digital tv tuner. I have found chips like maxlinear puma 7, broadcom's BCM3390, and STMicroelectronics' STiD325.It seems this part number is not available when searching for it on the st website. Was it abandoned, or did it fail vs the competition ? I can't find it in any actual producs, but some stock appears to be available here:https://www.worldwayelec.com/pro/stmicroelectronics/stid325/14062932So I am guessing this might be a dead end for development, since there's most likely no devkit/software available ? Broadcom appear to only work with its big partners, so that leaves just Maxlinear as a possibility ?Are there any other such chips ?Thanks.

Dear ST Community members, You might receive an error: HTTP Status 401 when trying to access the ST Community.  If it happens to you, please send us an email: community@st.comWe’re currently investigating the issue and hope the access will be fully restored soon. We apologize for this inconvenience. Best regards,Lina

Hello everyone, I was trying to use 2 mics  IMP34DT05 in stereo configuration with MCU.I wanted to capture signals from both the mics as well as i want to use single mic also. Please guide how can be this configuration done in schematic and how should be the 2 mics placed together. Best Regards,Sakshi 

Here is what happens when I attempt to program the board:15:20:57 : STM32CubeProgrammer API v2.18.0 | Linux-64Bits 15:21:09:628 : UR connection mode is defined with the HWrst reset mode 15:21:09:705 : ST-LINK SN : 066BFF485251667187085222 15:21:09:706 : ST-LINK FW : V2J45M31 15:21:09:706 : Board : NUCLEO-L452RE-P 15:21:09:707 : Voltage : 3.24V 15:21:09:707 : SWD freq : 4000 KHz 15:21:09:707 : Connect mode: Normal 15:21:09:708 : Reset mode : Hardware reset 15:21:09:708 : Device ID : 0x462 15:21:09:708 : Revision ID : Rev Y 15:21:09:709 : flash loader /media/allanmacdonald/Data/STMicroelectronics/STM32Cube/STM32CubeProgrammer/bin/FlashLoader/0x is loaded 15:21:09:709 : Debug in Low Power mode enabled. 15:21:09:710 : r ap 0 @0xE0042004 0x00000004 bytes Data 0x00000000 15:21:09:710 : w ap 0 @0xE0042004 0x00000004 bytes Data 0x00000007 15:21:09:710 : r ap 0 @0xE0042008 0x00000004 bytes Data 0x00000000 15:21:09:711 : w ap 0 @0xE0042008 0x00000004 bytes Data 0x00001800 15:21:09:711 : Reading

Hello,I'm trying to run the Ux_Host_VIDEO example from STM32CubeN6 on the STM32N6570-DK board, but UVC camera streaming does not work. The USB device is detected, but no video stream starts. Test Environment:Board: STM32N6570-DKExample: Ux_Host_VIDEO (from STM32CubeN6 package)IDE: STM32CubeIDE 1.18.1Camera models tested: Logitech C270Connection: USB-C OTG (HS) port using USB-A adapter USB host stack detects the device and logs: **** USB OTG HS in HS VIDEO Host ****USB Host Video library started.Starting VIDEO ApplicationConnect your VIDEO DeviceUSB Video Device InsertedPID: 0x825VID: 0x46dUSB Video Host App...Video Device is ready...  No streaming happens after that.Function _ux_host_class_video_alternate_setting_locate() filters out most alternate settings.The condition: if (payload_size >= max_payload_size) causes only a few alternate settings (e.g., >= 7) to be selected, but those don’t work either.Questions:Has anyone successfully tested this exa

Hi guys, first of all, after many hours of study of this peripheral i have "few" points. I will try to be as nice and calm as actually possible.1: Does anyone in ST review documentation and code you are generating? RM0456 17.4.2 paragraph 2:"After enabling/starting a GPDMA channel transfer by writing 1 in GPDMA_CxCR.EN, aGPDMA channel interrupt on a complete transfer notifies the software that the GPDMAchannel is back in idle state (EN is then deasserted by hardware) and that the channel isready to be reconfigured then enabled again."What does it mean? Do i have to start GPDMA channel and then configure it? (Nonsens) Shall be channel configured before it? (obviously) Transfer Complete interrupt is triggered right after enabling/starting channel? Do i have to somehow filter it? LEARN HOW TO WRITE DOCUMENTATION!2: How the hell shall be ports used? You recommend to use Port1 for memory access and Port0 for peripheral acces (in case the periph-memory transfer is used), but when you ge

SPI or serial port?If it weren't for those two, Then why must the MCU_API_delay() function be set while ((LL_USART_IsActiveFlag_TXE_TXFNF(USART1) == RESET) || (LL_USART_IsActiveFlag_TC(USART1)) == RESET)) {};We can use both uart of MCU, so I want to confirm with you whether it is necessary to configure here.

We are developing SIgfox with STM32WL33KBV6, and we don't know how to deal with the 826-958MHz RF partial matching circuit, so we hope you can help.There is no specific reference value for this part of the circuit for the LC component.  

 Working on bidirectional communication between CM4 and CM7 on the STM32H747I-DISCO using FreeRTOS stream buffers (CoreMessageBuffer). One-way communication works fine (either CM4 → CM7 or CM7 → CM4), but both directions at the same time do not work as expected.What Works:CM4 → CM7: Data is sent and received correctly.CM7 → CM4: Works fine when used independently.Current Issue:When both directions are enabled simultaneously, it fails to receive data in both the direction.Memory Section Mapping:Configured dedicated sections for each direction in both CM4 and CM7 linker files:.ld/* CM4 → CM7 */ .xCoreMessageBuffer_section_CM4_to_CM7 : { *(.xCoreMessageBuffer_section_CM4_to_CM7) } > RAM_D3_Z1 .xStreamBufferStruct_section_CM4_to_CM7 : { *(.xStreamBufferStruct_section_CM4_to_CM7) } > RAM_D3_Z2 .ucStorageBuffer_section_CM4_to_CM7 : { *(.ucStorageBuffer_section_CM4_to_CM7) } > RAM_D3_Z3 /* CM7 → CM4 */ .xCoreMessageBuffer_section_CM7_to_CM4 : { *(.xCoreMessageBuffer_section

Bug Description:When regenerating a CubeMX Project with the STM32CubeIDE Toolchain selected, CubeMX will change the ".cproject" file and add a "./Startup/" directory to the source locations of the project if the following conditions are present:1. In the root directory of the project (where the .ioc file is located) you need to have a directory with a name that is alphabetically closer to 'A' than the "./Core/" Directory. For example "./Application/"2. In this directory there needs to be a "main.c" file, which would be created by the user. This will cause CubeIDE to output a warning message on each build, stating that "./Startup/" could not be found. If the directory name comes after "Core" alphabetically everything is working like expected and no "Startup" directory is added as a source location to the project configuration. Version:This behaviour is reproducible with CubeMX version 6.14.0. I currently have no easy way to test if this problem is also present on the most

I am using STM32H747 MCU with OV5460 camera. The FPS i got from the camera is around12-13 fps is that any method to increase the frame rate.I tried by increase PLL clock but there is no image received.Thanks

Hello,We are currently using a STM32U5G9 with MIPI Port 2 lanes talking to ST7701S TFT driver. We found on power up when we have a lot of error in DSI_ISR0.PE3 and DSI_ISR0.PE4 are set, display do not start. Definition of this error is : This bit indicates the LP1(0) contention error ErrContentionLP1(0) from lane 1(0). Not finding to much info on this... Any idea?  

I wanted to generate without Phase shifted PWMs between HRTIM  and Tim1 .How can I do it? thanks for your support! 

I can't find Try.SRC or Try.SNK features for DRP devices in ST's USB C Power Delivery Stack (USBPD Core). Did I miss something?If it is not in the stack yet. Is ST planning to integrate this feature? What timeline are we looking at?Is it easy to implement? I guess I would just need to define Rp or Rd values after initial connection, but will that work with the rest of the stack or will it result in a mess?Has anyone tried or even achieved it? Is there a sample implementation?

Hello, I would like to have my account deleted. Please let me know how to do it. Thanks in advance. Regards,

Hello everyone! I'm working on a project using an STM32U575 microcontroller, and I need to manage an SD card (read, write, etc.) via SDIO in 1-bit mode, but without using FreeRTOS. I noticed that FatFs is not natively supported for this MCU in STM32CubeMX, and the recommended alternative is FileX, which is tightly integrated with FreeRTOS. However, due to project constraints, I cannot use an RTOS. So I'm trying to manually integrate FatFs into the project, but I'm running into some difficulties with the integration and compatibility. I was wondering: Has anyone already done this kind of integration? Is it possible to use FileX in standalone mode, without FreeRTOS? Do you have any examples, documentation, or code references for using FatFs or FileX standalone on STM32U5 series? Any help, advice, or shared experience would be greatly appreciated. Thank you in advance and have a great evening! Stefano

Hello everyone,I am working right now in a project involving some of ST products. I have my custom HW board with a STM32G0B1 MCU for a specific functionality. In order to work with it and be able to program and debug my project, I was using two main devices: A NUCLE0-G0B1RE development kit to get familiar with the MCU and make some SW tests, and also a few STLINK-V3MINIE programmers to program and debug my custom HW with the STM32G0B1. The problem comes when the ST-LINK device stopped working with a new version of my HW where the MCU is still the same and the debug circuit also remains the same. With the previous HW version it works well and I am able to program and debug it. I also tried with the ST-LINK integrated in the NUCLEO board with SWD connection and this ones DOES work with my new HW. I am quite confused right know because I don't understand which is exactly the problem here. It's not the first time that the ST-LINK V3MINIE is not working as expected. I also tried t