Solved

I would like to use the board's built-in microphone to display audio data visualization on an LCD screen. I want to add more display modes later, but at the moment I only have basic waveform time domain display.I use the built-in microphone to record audio, which I then convert to PCM using PDM2PCM middleware. However, there seem to be no correlation between the sound and the pcm values. Whether I speak, turn the music on, or do nothing at all - pcm values are about the same.Moreover, every position in the PCM buffer hovers around the same value. For example, some positions are about ~-11000 no matter what, and the other are about ~20k no matter what. So, the audio visualization is almost flat with some random noise.I assume that there is something wrong with how I use the mic or pdm2pcm. The I2S and middleware settingsExample PCM values    The code/* Private variables ---------------------------------------------------------*/ /* USER CODE BEGIN PV */ /* USE

  Hardware: STM32 NUCLEO-WB15CC (STM32WB15CCUX) RTOS: FreeRTOS BLE stack: STM32WB WPAN / BLE via CPU2 (M0+) Hi,   When writing a small configuration block (~48 bytes) to the internal Flash from CPU1 (M4 FreeRTOS task), the BLE connection drops immediately. The disconnect event is received on the host side with no prior warning, and the firmware logs a HCI_DISCONNECTION_COMPLETE_EVT shortly after the Flash erase/write sequence begins.   The Flash region used is a dedicated 2 KB NVM page at address 0x0801B000 (defined in the linker script as FLASH_NVM):   FLASH_NVM (rx) : ORIGIN = 0x0801B000, LENGTH = 2K --- Data Written ---   The payload written is 48 bytes (already 8-byte aligned), structured as: [magic: uint32_t (4 B)] [Config_t (40 B)] [checksum: uint32_t (4 B)] The Config_t struct: typedef struct { uint16_t volume_shown; uint16_t client_timeout_ms; uint16_t cup_detection_threshold; uint16_t flow_timeout_forward_ms; uint16_t flow_timeout_backward_ms; uin

Hi Team,I am working on board design using STM32H745 (LQFP176 package), and I would like to confirm the correct external memory selection for my smart kitchen application.Application details:- MCU: STM32H745 (dual core)- Package: LQFP176- USB OTG FS used as HOST to interface a USB camera- Camera usage: Snapshot (JPEG only, no continuous video streaming)- Current: 2MP- Future plan: up to 5MP snapshot- Additional peripherals:- I2S (audio codec interface)- 4× I2C buses- UART / RS485- 2× SPI For external memory, can I use QSPI PSRAM (APS6404L 8MB), or should I use SDRAM via FMC? Please advise which memory type is recommended.  Any guidance or recommended reference designs would be helpful. ThanksSathiya 

Hello, when I was using the SDIO of F407, I encountered a problem where the SD card could only read but not write. When I enabled "HardwareFlowControl" and set "ClockDiv" to 2, the function was normal. Why is that? When I operate the SDMMC of the H750, it's the same. It must be set to the above Settings.I checked the waveform of the SD card. In terms of waveform quality, it's okay.The waveform of the clock is shown in the following figure

Hello, I am following this guide:How to integrate TouchGFX and camera middleware on an STM32N6570-DK and seem to be getting an I2C1 undefined reference (below).  Is there something I need to change?  I have I2C2 enabled in my .ioc, but don't see anything about enabling I2C1C:/TouchGFXProjects/VisionControlboard/STM32CubeIDE/Appli/Debug/../Middlewares/stm32-mw-camera/cmw_camera_customized.c:1951:(.text.CMW_CAMERA_IMX335_Init+0x144): undefined reference to `BSP_I2C1_Init' C:/ST/STM32CubeIDE_2.0.0/STM32CubeIDE/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.14.3.rel1.win32_1.0.100.202602081740/tools/bin/../lib/gcc/arm-none-eabi/14.3.1/../../../../arm-none-eabi/bin/ld.exe: C:/TouchGFXProjects/VisionControlboard/STM32CubeIDE/Appli/Debug/../Middlewares/stm32-mw-camera/cmw_camera_customized.c:1951:(.text.CMW_CAMERA_IMX335_Init+0x148): undefined reference to `BSP_I2C1_DeInit' C:/ST/STM32CubeIDE_2.0.0/STM32CubeIDE/plugins/com.st.stm32cube.ide.mcu.externaltool

If I add a new .c file to my project in core/src it does not get recognized and is not complled. How do I get it into the make list?Thanks

To whom it may concern: I am looking at your STEVAL-IPFC12C1 evaluation board schematic and there is a part that doesn't make sense to me. Why would "GND_BRG_SW" be connected to V_INPUT? Are you not connecting low voltage line to a high voltage line?  

Hello,   In the reference manual rm0481 (stm32h562) in chapters 7.11.38 and 7.11.51 it is stated that EDATAx_STRT Bits do not have any hardware effect. Can I assume that the corresponding bits in FLASH_EDATAxR_CUR are set from option bits only? In that case what is purpose of these bits in FLASH_EDATAxR_PRG? Are rhey also set from option bytes? What about the EDATAx_EN bit in FLASH_EDATAxR_PRG? Here the documentation is NOT stating that there is NO hardware effect. Is this correct? If yes, where does the actual setting of EDATAx_EN in FLASH_EDATAxR_CUR come from? By the way in Table 51 there is an DATA_EN1 bit in FLASH_EDATA2R option bytes. May I assume that this is a documentation error and it should in fact be DATA_EN2   Thank you  

Hi,I have derived this code from the ST25NFCLib, and the software works correctly when interfacing with the NUCLEO-L476RG board.However, when I connect the same setup to my proto board, I observe a difference during the following I2C transaction.During the initialization process, the master sends command 0xDF (Measure Power Supply) and then waits for the IRQ signal.In the working setup, the IRQ status registers (1Ah–1Dh) return the values:00, 80, 00, 00Whereas in the non-working setup, the IRQ status registers return:00, 00, 00, 00I am not sure why the IRQ response is different in the proto board setup.Please note the following:Both the working and non-working setups use the same ST25R3918 daughter board.Both setups use the same interface signals: 3.3V, GND, IRQ, SCL, and SDA.The I2C communication speed is identical on both setups.I am attaching the I2C transaction screenshots for reference:The upper transaction belongs to the non-working setup.The lower transaction belongs to the work

Hi ST Community, I am working on STM32H563 with external SDRAM connected through FMC. I am trying to use: heap in SDRAM global variables in SDRAM execution/data access from SDRAM DCACHE enabled Current SDRAM mapping: 0xC0000000 I noticed that in STM32F7/H7 examples there is support for: HAL_REMAPMEMORY_FMC_SDRAM() which remaps FMC SDRAM memory regions internally. I found this in STM32F7 HAL: __HAL_SYSCFG_REMAPMEMORY_FMC_SDRAM() But on STM32H563 I cannot find any equivalent remap mechanism or SYSCFG macro. My questions are: Is there any equivalent SDRAM remap functionality available on STM32H563 / STM32H5? Is SDRAM fixed permanently at 0xC0000000 on STM32H5 architecture? Does STM32H5 treat SDRAM at 0xC0000000 differently regarding: DCACHE burst accesses MPU memory attributes speculative accesses Are there any special MPU/DCACHE recommendations for using: malloc()/calloc() heap in SDRAM .bss/.data sections in SDRAM execution from SDRAM Current observations: SDRAM works correct

Hi, I'm using the STM32WBA54KG microcontroller to comunicate by BLE. In STM32CubeMX (v6.13.0), I have actived the STM32_WPAN packet and the configuration "USE_TEMPERATURE_BASED_RADIO_CALIBRATION" is "YES".I need to read the Vcore channel to know if the battery is low. How can I do it? Thanks.

Hi ST community i just searched the GUI for EV-VNF9Q20F but could not find it. Please tell us where can i get suitable GUI. and also i'm really glad if you could check the availability of SPC582B against EV-VNF9Q20F.

(and why is this a problem?)It looks like the backup ram can not be called through unaligned access on my STM32U585. The mighty internet says that this should not be completely unexpected since it is basically a peripheral and no standard Ram.I have set up the BKPSRAM in the linker file like this:#include "partition.h" /* Entry Point */ ENTRY(Reset_Handler) /* Highest address of the user mode stack */ _estack = ORIGIN(RAM) + LENGTH(RAM); /* end of "RAM" Ram type memory */ _Min_Heap_Size = 0x000 ; /* required amount of heap */ _Min_Stack_Size = 0x800 ; /* required amount of stack */ /* Memories definition */ MEMORY { BKPSRAM (xrw) : ORIGIN = 0x40036400, LENGTH = 2K SRAM4 (xrw) : ORIGIN = 0x28000000, LENGTH = 16K RAM (xrw) : ORIGIN = 0x20000000, LENGTH = NON_SEC_RAM_SIZE /* Secure is using end RAM3 (64k). Actual start is 0x20000000 and actual length is 768K */ FLASH (rx) : ORIGIN = 0x8000000 + APP_SLOT0_NON_SEC_APP_OFFSET, LENGTH = NON_SEC_APP_SIZE /* Memory is divided. Actual st

I am currently working on a resolver ad2s1210. I have selected the required pins generated the code and entered my code and now it does not seems to be running. As the screen shows this Kindly let me know whats seems to be the issue here and how to rectify it.

Hello ST TeamI am using the ST25R3911B-DISCO board with an ST25DV16KC tag.I am trying to communicate with the tag directly from Python using the ST25R3911DISCOComm.dll from STSW-ST25R001.My setup is:ST25R3911B-DISCOST25DV16KCWindows PCPython 3.13ctypesThe DLL loads successfully.Reader connection works correctly.RF initialization works correctly.These APIs return success:rfalInitializeiso14443aInitrfalFieldOnAndStarGTcheckConnectionThe ST GUI software works correctly and can:detect the tagselect the tagread UIDread tag dataFrom Python I cannot:detect the tagselect the tagread UIDread memoryThe DLL exports these APIs:iso14443aSelectiso14443aRATSiso14443aPPStxrxBytesnfcTxNBytesnfcRxNBytesrfalStartTransceiverfalTransceiveBlockingTxrfalTransceiveBlockingRxrfalTransceiveBlockingTxRxrfalISO14443ATransceiveShortFramerfalISO14443ATransceiveAnticollisionFramerfalIsoDepInitializerfalIsoDepStartApduTransceivepollInterruptObserved issues:iso14443aSelect causes access violation.t2tRead4Pages returns

Hello,In this file, the line:USBx_HC((uint32_t)ch_num)->HCSPLT |= USB_OTG_HCSPLT_XACTPOS_Pos;wrongly alters bits 1 to 3 of register HCSPLTThat can be fixed simply by removing this line, since middle payload is encoded by bits 00 in the XACTPOS field. 

Hello, I purchased an STLINK-V3PWR from Mouser. When I tried to use it, STM32CubeIDE 2.1.1 suggested updating the firmware. This failed, and the STLINK-V3PWR appears to be unusable (bricked). What can I do? Return the device for a refund/replacement? Or is there a way to re-flash the firmware using an STLINK-V3SET? If it is possible to restore the firmware by re-flashing it, where can I find the correct firmware? Kind regards, Jack.

Hello everyone,We are currently designing a decentralized Battery Management System (BMS) node for our Formula SAE electric car. We selected the L99BM114 due to its robustness in automotive environments and high measurement accuracy.Our architecture requires this specific node to monitor a 5-series (5S) cell module. Since the L99BM114 supports up to 14 series cells, we will have 9 unused channels.While reviewing Section 6.8 of the datasheet (Unmounted cells), the exact hardware implementation for our case felt a bit ambiguous. We want to ensure our schematic doesn't trigger false internal diagnostics, such as Cell Open Wire or Balancing Short/Open.Could anyone clarify the recommended wiring for the unused pins in a 5S configuration? Specifically:Voltage Sense Pins (C6 to C14): Should all these unused inputs be shorted together and tied to the highest active potential (C5)?Balancing Pins (S and B) & Filtering: How exactly should we handle the external filtering resistors (RLPF) and

Hi !I've using TouchGFX Designer for a while, only using Simulator project (which Board setting is PC) for sfx evaluation and learning. And I wanna try to flash my previous project running on a real microcontroller board like F429 discovery board.Here's my question: How to migrate my previous PC Simulator project to new CubeMX project based on real board project?I tried to find related settings in TouchGFX but failed. Is it the only way to migrate my previous ui into new project by doing all the steps in the new TouchGFX project？Thanks !

Hi ST Support Team,  #1 Demo provided by ST for STM32H7B3I-EVAL board is working on Windows Simulator.   But it is not working for Target (STM32H7B3I-EVAL board.)  #2 Does code generated by TouchGFX designer will run on Target board without any code changes on target (STM32H7B3I-EVAL).Please help me to resolve this issue.  Regards,Tejas

Hi,I created a project in STM32CubeMX 6.17.0 targeting the NUCLEO-G491RE and successfully generated the code. I then imported the project into STM32CubeIDE 2.1.1 and as far as I can tell it looks ok. The only apparent issue was that when I clicked on the .ioc file I thought that the STM32CubeMX project was supposed to open inside STM32CubeIDE but instead I get an error saying:So that's one issue. But when I come to build the project in STM32CubeIDE there is no Build All (CMD+B) option available, or indeed any other build options available.This is the folder structure:What is missing from this workflow to create a project that can be built in STM32CubeIDE please?Kind regards,Al    

Good afternoon,First post here, so aologies for any ignorance.I am trying to combine the subghz radio feature of WL55JC1 and the ST60 high frequency communication Full Duplex UART bridge.Ideally, I would be switching between these two functions.I have ported the ST60 example to the WL55JC1 dev board, and can get both running independently.But my problems arise because the subghz radio example uses the STM32 Sequencer utility, while the ST60 doesn't.When I try to integrate the sequencer into the ST60 code, it seems like the I2C comm/config channel for ST60 stops working.Does anyone have any guidance/direction in this area?Appreciate your time.

 Hi everyone,I am working on an STM32H523 MCU and I have recently observed some strange behavior regarding the PB14 and PC9 pins. I have the following setup:PB14 is configured as input (I use this for the TIM2_CH2 alternate function, but this does not affect the issue) and is externally pulled up using a 10kOhm resistor.The PC9 pin is configured as output.When the PC9 pin is unset, the PB14 is 3.3V, as expected. But when setting the PC9 pin, the voltage on PB14 drops to only 1.13V.  These pins are otherwise not connected, so 2 seemingly unrelated pins seem to have some dependency within the stm32h523 chip.  Another test was performed by configuring PB14 as output (without pullup). Now, when PC9 is unset and PB14 is set, the voltage on PB14 is 3.30V. When setting PC9, the PB14 voltage drops to 3.26V, which seems related... To make sure it is not caused by our own hardware, we did the same test on a STM32H5 Nucleo-144 board (MB1404C), this development b

I am using STM32CubeMX 6.16.1 to configure a project for STM32F415.I use the FATFS on SD card and set it up as:According to FATFS documentation (https://elm-chan.org/fsw/ff/doc/config.html#lfn_unicode), the data type TCHAR should translate to char in this case. However, CubeMX generates Middlewares/Third_Party/FatFs/src/ff.h in which TCHAR is defined as WCHAR, i.e. a 16-bit type:The _STRF_ENCODE is correctly defined as 3 in FATFS/Target/ffconf.h, which corresponds to UTF-8:Is this a bug? How can I ensure that UTF-8 uses the 8-bit data type correctly?

Flint is an accelerometer system in the Smithsonian Museum.  It is a MKI109 and MKI 210 pair.  It has been in place for about three years after a recommendation from your David Reynoldson, who is a really great guy and helps a lot. We have about six to ten such systems that were used and have now been pulled, but old Flint just keeps on working. It has a partially bespoke C# program.  The PI designed and manufactured some small boxes. But to hold the 210 onto the 109 I used a rubber band before it was boxed.  It worked well for three years and then broke. Flint had some minor problems:1. You have to use a USB Managed HUB to turn the device on and off if you reboot the computer.  The HUB is as expensive as the accelerometer pair.  Or you unplug the computer, the device does not reset to home if the computer is switched off - major design flaw in a complex system.2. You have to put a watcher program to monitor the accelerometer program that ca