Solved

I have a component on a board that I am trying to identify.It showsST logoBGVGP244I'm hoping someone can help with this.  I included a pic in hopes that will help.Regards,Curtis

HiHere is my scenario:I want to use USB Type C Connector for Power Delivery(upto 65W) and also, for communicating with STM32F767ZIT6 on my Hardware.Power Delivery is used to charge a 14.4V Li Ion Battery using Battery charger on my hardware. So, And USB Communication takes place with STM32F767ZIT6 Full Speed. Charging and Communication don't need to happen at the same time.So, USB-C Connector will either be used to charge the battery using a AC-DC wall adapter or communicate with STM32 on my hardware using a USB-C Cable from PC. Only one of these things will happen at a time. I was thinking of using STUSB4500 for Power Delivery such that it negotiates 20V, 3.25A with Wall Adapter but it looks like VBUS Sensing PA9 would be a problem when PC is connected(VBUS= 5V) or wall adapter is connected(VBUS= 20V).So, wondering if there are better/easier options to do this? Changing the STM32F767ZIT6 to something like STM32 UCPD MCUs is unfortunately not an option. 

Hi everyone,I am currently looking into the STM32F303CCT6 and I'm a bit confused by the ADC specifications. ST's website mentions it can achieve up to 18 MSPS in interleaved mode. However, looking through the Datasheet and the Reference Manual (RM0316), I don't see a clear way to hit 18 MSPS at 12-bit resolution.I realize the hardware interleaved mode is only dual (e.g., ADC1/2 and ADC3/4). Since the documentation mentions dual mode can reach up to 9 MSPS at 12-bit, and there is no native quad-interleaved mode, I suspect one of two things:There is a way to manually coordinate the two dual pairs (using all 4 ADCs) to reach 18 MSPS at 12-bit.The 18 MSPS claim strictly refers to running a dual interleaved setup at a reduced 6-bit resolution.I would deeple appreciate some insight regarding if 18 MSPS at 12-bit is actually possible on this MCU, or if I am limited to the dual mode specs?Thanks in advance!

This is looking for more info from this original post * https://community.st.com/t5/stm32-mcus-embedded-software/i-am-using-usb-pd-system-with-stm32g071rb76-processor-there-are/m-p/219760#M53483     With a stm32 chip with only one CC line could i connect both of the CC lines together. This is a DFP I don't need VCON support If i were to do this could i still figure out what the orientation is?  

Split from this post. Hello, Sorry to bother you again, but it seems that since yesterday (when I enabled the CAN bus), the UART on my Nucleo has stopped working, even though I haven’t touched anything since then.   To be precise, I’m monitoring my UART signal and I’m only getting ‘framing errors’, obviously, I’ve checked and the baud rates are the same on both sides.   Could activating the HSE clock have disrupted the operation of my UART ?   Thank you in advance for your help,

Hi, I want to know when the C/C++ Indexer will be updated to the latest C standard, that is, C23? I want to use some new language features, like double square brackets for attributes, but it still shows a syntax error, even though the code compiles without problems.Also, I would like to know when GCC 15 will be available. Best regards,Artur 

I've just installed the new STM32CubeIDE 2.1.0 and I came across some issues that didn't exist in previous versions.First, I noticed that the compiler always compiles all the source files even though only one source file was modified. I have large project with many source files and it takes about 2 minutes to compile all files. It's very annoying.Second, when launchinig debug session all the source files are compiled again. It didn't work that way in previous versions of STM32CubeIDE. If the files were compiled previously, the debug session was launched immediately.Is it possible to change this behavior but turning off some options or do I have to install older version of STM32CubeIDE ? 

Hi, I’m trying to configure the FDCAN peripheral on a NUCLEO-STM32H72ZG board, but even though it works perfectly in loopback mode, it doesn’t work when I switch to normal mode. Even in external loopback, when I check with the oscilloscope I don’t see any activity on the TX pin (no signal transitions). The same issue occurs on this board also with GPIOs. I tried the same setup on a NUCLEO-STM32F303RE board (using CAN instead of FDCAN), and everything works perfectly there.      

A few days ago I updated STM32CubeIDE from version 2.0.0 to 2.1.0. (Build: 27993_20260219_1630 (UTC))Now there is a problem. There seems to be no longer any such thing as a "partial" build. Example: My project consists of about 50 ".c" and ".h" files. In the old version, if I edited one of the ".c" files and did a build, only the file that was edited got re-compiled, followed by (as expected) linker and hex file generator. Now, in this version, every build re-compiles ALL the files, even if nothing was touched since the last build. This is time-consuming. How can I stop this and get it to re-compile only the changed files? (If it matters, target CPU is STM32H753BIT6; using FreeRTOS and FATFS.)

HiI'm create a project that sending data from RFID reader (RS232) to PC (via USB HID) as a keyboard.I using RS232 to TTL for STM32 can read data and using USB HID to send it to PC.My code is working but a character sending is slow, but when i remove delay, character is missing. Ex: data from RFID: 4F002F144EWhen I have 15ms delay, my PC receive all characterBut when remove 15ms, some character is miss.So I want to ask have anyway to speedup ?This is my loop: while (RingBuffer_Availabel(&ring)) { uint8_t data; RingBuffer_Pop(&ring, &data); if(data == '\r'){ send_enter(); break; } keyboardhid.MODIFIER = (data >= 'A' && data <= 'Z') ? 0x02 : 0x00; keyboardhid.KEYCODE1 = ascii_to_hid((char) data); USBD_HID_SendReport(&hUsbDeviceFS, (uint8_t*) &keyboardhid,sizeof(keyboardhid)); HAL_Delay(15); usb_ready = 0; keyboardhid.MODIFIER = 0x00; keyboardhid.KEYCODE1 = 0x00; USBD_HID_SendReport(&hUsbDevic

 Hello ST Community,We are working with STM32N657X0H3Q and configuring LTDC with internal AXI SRAM.Currently, we have configured the LTDC framebuffer at the following address:0x34200000First, we verified the LTDC functionality without using TouchGFX.Using the same framebuffer address (0x34200000), we manually filled the framebuffer with different colours and confirmed that the display works correctly. The panel turns on and displays the colour patterns properly. This confirms that the LTDC configuration and the memory region are functioning as expected.After enabling TouchGFX, the system starts initialization, but during debugging we observe that execution exits unexpectedly during the TouchGFX initialization phase.In TouchGFX, we have configured the framebuffer using the address method, pointing directly to the same memory location 0x34200000.The issue appears to occur around the following section of the TouchGFX initialization code:FrontendHeap& heap = FrontendHeap::getInsta

Heyho,I recently found that I'm not using ITCM RAM at all, then started to put heap and stack there.No problems so far.Then I copied some functions there, and all went well - until I found some strange behaviour:1..4 SAI RX DMA transfers running, circular modewhen all these transfers are complete for each SAI, a function is called to copy the complete DMA buffer from internal AXI SRAM into the big buffer in HyperRAMalso in this function a packet counter (a global u32 in DTCM) is incremented oncebut when this function is in ITCM, this packet counter increments for each SAI active, but there are no extra packets Further info:- instruction cache: in use- data cache: not used Is there any guideline what to put in ITCM, what are the limits, etcpp. ?

Hello everybody I'm building the device with power delivery sink function. I need the 21V (PPS). I done the configuration with STM32CubeMX and wrote some code in STM32CubeIDE. Unfortunately, after about 14 s of estabilishing connection, the source send hardware reset. What is the problem? In the attached file is the trase from STM32CubeMonitor-UCPD. I use STM32CubeIDE v. 2.1.1 and STM32CubeMX v. 6.17.0. void USBPD_DPM_SNK_EvaluateCapabilities(uint8_t PortNum, uint32_t *PtrRequestData, USBPD_CORE_PDO_Type_TypeDef *PtrPowerObjectType) { /* USER CODE BEGIN USBPD_DPM_SNK_EvaluateCapabilities */ //DPM_USER_DEBUG_TRACE(PortNum, "ADVICE: update USBPD_DPM_SNK_EvaluateCapabilities"); USBPD_SNKRDO_TypeDef rdo; rdo.d32=0U; rdo.ProgRDO.ObjectPosition=6U; rdo.ProgRDO.OutputVoltageIn20mV=1050U; //21V rdo.ProgRDO.OperatingCurrentIn50mAunits=60U; //3A rdo.ProgRDO.NoUSBSuspend=USBPD_ENABLE; rdo.ProgRDO.USBCommunicationsCapable=USBPD_ENABLE; *PtrPowerObjectType=USBPD_CORE_PDO_TYPE_APDO; *Ptr

Cube IDEIf i create / Import STM32 ProjectI only got these options to pick from and i have the feeling something is missing.  So i select:- STM32CubeIDE Empty Project which leads me to this:So i select my MCU: STM32G474RETx (for example).This leads me to this:All i can really do is creating an empty Project.This is wrong? I have the feeling it completely ignores which STM Chip i select. I would expect a question if i would want to use CMSIS, LL or HAL drivers.What i am left with is this:Notice that there is no Drivers folder at all and that i cannot select any of the given Libraries.To me this doesnt make any reasonable sense. Its almost like an empty C/C++ Project.The only way to get the drivers folder into my project is to go the route via CubeMX.Which also has its twirks.I sort of always have to select only the MCU on my board instead of the board itself.When i select the Board (in this particular case the NUCLEO-G474RE) then CubeMX will always export also the FreeRTOS CMS

I found what looks like a reproducible STM32CubeMX code generation bug for STM32H5 USBX device projects.I tested this on a fresh project, so this does not appear to be a migration issue from an older codebase.ProblemCubeMX generates these USBX init functions:MX_USBX_Init()MX_USBX_Device_Init()MX_USBX_Device_Stack_Init()However, the generated call flow only invokes:MX_USBX_Init()MX_USBX_Device_Init()and never calls MX_USBX_Device_Stack_Init().That is a problem because MX_USBX_Device_Stack_Init() contains the actual device stack setup:ux_device_stack_initialize(...)class registrationux_dcd_stm32_initialize(...)Without that function running, the USB peripheral can start and receive a reset interrupt, but USBX has not been given valid device framework pointers yet.Observed failureWhen USB_DRD_FS_IRQHandler() fires and the USB reset path runs, the code eventually reaches:HAL_PCD_ResetCallback()_ux_dcd_stm32_initialize_complete()_ux_utility_descriptor_parse(...)and h

Hi, I’m using a NUCLEO-144 (STM32H563ZIT6) development board with only the board USB STLINK-V3EC port connected. TRACE and DEBUG are enabled with Serial Wire in the configuration file, and printf is routed through ITM: int _write(int file, char *ptr, int len) { for (int i = 0; i < len; i++) { ITM_SendChar((*ptr++)); } return len; } SWV is enabled in the debug configuration, the core clock is 250 MHz, and the SWV window (port 0) shows output correctly in STM32CubeIDE.     When I switch to an external ST-LINK/V2 and connect NRST#15 / SWDIO#7 / SWCLK#9 / GND#20 / TARGET VCC#1 / VDD3.3 V#19, programming and debugging work, but the SWV window shows nothing in the STM32CubeIDE. The reason for using ST-LINK/V2 for SWV debugging is that on our product’s onboard MCU, only VDD, NRST, SWDIO, SWCLK, and GND are exposed.   Could anyone explain why SWV output does not appear with ST-LINK/V2? Thanks.    

Hi   I would like to check if it is necessary to call MX_RNG_Init() after the MCU exits STOP MODE to reconfigure the RNG?   BR Gilberto

Hey all, I've used this tutorial: https://youtu.be/suMytEyQTP4?si=jLtyF5uH1Qd6zpYvto run TouchGFX on several different MCUs/boards such as the black pill or NUCLEO-F446RE. However, I simply cannot get anything to display when I setup TouchGFX on my NUCLEO-WL55JC2. I'm unsure if there is something I'm missing that makes it unfeasible or much more difficult to get it running on the board, but I'm at my wit's end after debugging for hours and finding no issue. The code compiles and programs to the board fine, and I've verified all connections as well as parameters, and I am at a loss as to what to do. If anyone could help I would greatly appreciate it. (Note: I've tried in single core setup to get it to work as well and that did not seem to solve the issue.)

Hello,I am using the ST25R3918 in NFC-F (FeliCa) Card Emulation (CE) mode, controlled by an MCU via RFAL (based on STEVAL-25R3916B_V2.1.0). [Issue Description]The system works correctly under normal conditions: the ST25R3918 receives commands like "Write Without Encryption" or "Read Without Encryption" from a reader and sends back the appropriate responses.However, if the reader is moved away from the ST25R3918 (resulting in RF field loss) during the communication process, the MCU firmware falls into an infinite loop. [Analysis Details]The loop occurs within the do-while block of demoTransceiveBlocking() in card_emulation.c. The call stack is as follows: rfalNfcWorker() -> rfalWorker() -> rfalRunTransceiveWorker() -> rfalTransceiveRx()Inside rfalTransceiveRx(), the state gRFAL.TxRx.state remains stuck at RFAL_TXRX_STATE_RX_WAIT_RXS. The function st25r3916GetInterrupt() is called with the following mask: (ST25R3916_IRQ_MASK_RXS | ST25R3916_IRQ_MASK_NRE | ST25R3916_IRQ

I downloaded the STM32C5 software package from st.com, but I am unable to use IAR. How can I import the CMake project?

Hello,in our design with STM32H753ZIT6 I've adjusted the C0G load capacitors on the LSE 32.768 kHz crystal so that the real-time clock is now very accurate (less than 1 second error in 24 hours). I've always performed the calibration in VBAT mode at a voltage between 2.3 and 3.2 V.However, now I've noticed that in normal VDD mode with active controller, the real-time clock is running significantly too slow, with an error of 90 seconds in 24 hours. I've ruled out the VBAT supply voltage as the cause. Any ideas what could be causing this large error in normal VDD mode?Thank you!

There is no USBX or other middleware in my cubemx2, but the connection introduction indicates that it is available. How to access middleware & utilities - STM32CubeMX2 1.0.0 documentation    

I am looking for the documents of below.How to look top marking of M24M02-DRMN6TP.How to look the label  and Tape & Reel specification. 

Hi ,Recently I got a NUCLEO-C051C8 board and tried to connect it to windows and program it using STm32CubeIDE but it does not show that st-link is connected , ST-link on board blinks RED continuously. Cant install it ( installation goes through , but cant see it in device manager ) using stsw-link009( https://www.st.com/en/development-tools/stsw-link009.html?dl=redirect ) Cant connect using STM32CubeProgrammer. Tried 2 USb cables , various ports of pc but  in vain. Can someone please help ?   

The STM32CubeIDE project output setting is not present in STM32CubeMX2. Is there a way to generate a project that STM32CubeIDE can use? How do I do this? I did try the "CMake" option but wasn't able to get a project to import correctly.