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Hi everyoneI'm going to use STLD40D Driver IC for my TFT LCD. For driving LCD backlight, I'v chosen this Driver from ST. But I can't figure out the function theory of this driver. could you please explain for me the STLD40D function theory and how to use that?thank you in advance.

Recently I went from a stm32G0B1RET6 (512kB flash in dual bank) to a stm32G0B1RCT6 (256kB flash in dual bank) and I came across a strange behaviour (at least to me). The Firmware I work on is approximately 180kB in size, which means it can be stored in one flash bank of the previously used stm32G0B1RET6 but not on the stm32G0B1RCT6. Anyway I went on to test my FW on the RCT6 only to find out the FW was getting hardfaults that seemed to happen anytime the execution address was situated in the Bank B and something (maybe an interrupt) was called from bank A. The issues was solved by modifying the option bytes of the mcu to switch back to a single bank. Also when the mcu stalled in hardfault for such a reason it was not possible to debug it anymore and I had to mass erase the flash with cube programmerSo my question is : is there any reasons for the dual bank flash to cause such problems ?

Dear Support,Good day,Please advise what is the suffix KHA and KXA in the label for the part number M24M01-RMN6TP. Please refer to attached photo.Thanks

Hi,lately I realized that there are tracer errors from the USB-C stack in STM32CubeMonitor. I haven't seen them with older version of the USBPD libraries.Currently I'm using:- FW pack STM32Cube_FW_G0_V1.5.1- USBPD core library is now V4.0.0- USBPD device library is now V3.3.1Where do these errors come from?Thanks!BR, Christoph

I set level to DC(level1) and now I am not able to connect the board to Cube Programmer and throws "Connection to target must be established before performing the read command." https://youtu.be/LG474meMnagI was using this above video for reference. I had TrustZone enabled on the board and wanted to disable it. As per the video I first set it to DC from AA level in cube programmer. Then disconnected the board and power cycle. Then tried to connect back for the next steps, the cube programmer started throwing an error " Error: Connection to target must be established before performing the read command." Now I am not able to flash the code in Keil and it says "CPU is locked up"

I am using STM32CubeIDE Version: 1.9.0 and STM32CubeMX Version 6.5.0 under Win 10I am modifying the End Node example on a NUCLEO-WL55JC and I need to use the STM32Cube_FW_WL MCU Package.For compatibility reasons I need to use the Version 1.0.0 of the MCU Package (newer versions are a no go for me)During code generation, CubeMX automatically upgrades the MCU Package to the latest available release (1.2.0).Trying to avoid this, I selected under Software Packs -> Manage Software Packs the Version 1.0.0 but at the moment of generating the code it still uploads version 1.2.0... Any help is appreciated

The "validate on target" option doesn't work and I was wondering if it was possible to work around the problem by sending some data manually. I thanks you in advance.

We received notification from our CM that there is an EOL notice for this part. I checked a few sources including st.com, and they all say that this part is active. Can you please confirm the YTEOL for this part?Thank you.John

Hi, hope someone could kindly help me out with this.I am using the B-L462E-Cell-1 EVK with the 1SC modem from Murata.My goal is to test MQTT on the device using X-Cube-Cellular v5.2.1 which has the MQTT client application. I have followed the readme to use IAR workbench IDE to include the relevant MQTT folders. I have also set the variables to use MQTT client.I see these commands printed here. But the publish command doesn't work when I try to publish to the Hive MQ public MQTT broker. It seems to get stuck. I don't think this is a network related issue, since I used the cst command to check that my SIM has been configured already and I can received a signal.  My MQTT client configuration is seen here: Any ideas? Would appreciate some help from ST or the community. :)

I have a peripheral I am communicating to using both a Raspberry Pi and also STM32G0B1 (two different devices, two different setups)I am basically trying to reproduce successful communications that the Pi us doing to this peripheral on the STM32 platforms. I am having some strange results.The CS line seems to be going low or high, too early/late causing bits to be read that shouldn't be there.I'm sending 3 separate frames. 4 bytes, 10 bytes, 1 byte. There is no input being read, so those lines can be ignored.Below I am showing the output comparisons between the RPi and STM32.The graphs below show the following signals:SDOSDI <-- no traffic on any signalCSCLK4 bytes frame on Rpi, matches code: 4 bytes on STM32 (should match above): It can be seen that it appears the bits are shifted 1 to the left here.The 10 byte frame:Same again with the STM32: The final frame is a single byte, the number '8'On the Rpi it looks like this:The STM32 reads this as 11 Here it looks l

Hello,Our Device will be going to very Highly Noisy Hazard Environment Industry, We want to make sure device will work in any situation, STM32WLE5CC is End-node with Lorawan and Multiple application functionalities like RTC, Display etc.In this environment, if Uart RX interrupt is enabled, then it may arise many unwanted interrupts, which can affect our device functionality.Could you please suggest us is above statement is true?Should we keep this Interrupt Disable in this environment?any other suggestion to keep device functionality safe in this enviornment.Thank You

Once again I'm struggling to find a clear source for a peripherals clock with STM32 MCU's.Most searching leads me to HCLK/2, so at a max HCLK of 180MHz I get 90MHz.However, looking at there reference manual for the STMF469 I see this:From an example linked here, I can see that the STM32H7B3LI has a divider to select the HCLK Division.I cannot, however, see this option in MXCube for the STM32F469, but it says that the clock speed could be HCLK/3.Any idea what's going on here?

So basically I'm trying to implement WebRTC and seems like aiortc is its python implementation right now:.Unable to manually install them using pip3 as it requires some dev-packages.I tried to install it as a layer using pipoe auto-generated recipe, but no luck as it goes on with errors. A working recipe and additions that has to be done to local.conf or CORE_IMAGE_EXTRA_INSTALL variable would be appreciated :smiling_face_with_smiling_eyes:.

Hi,I am fairly new to the STM32 family. I am trying to program my STM32G030F6P6 with a ST-Link V2. I am using the TSSOP-20 Package varient.However when I try to upload even a very simple program I get this error."Error in final launch sequence:Failed to start GDB serverFailed to start GDB serverError in initializing ST-LINK device.Reason: (4) No device found on target."So I was looking through forum posts and everything and it came to my attention that my boot0 pin is shared with the SWCLK pin. I found out one forum post says that I need to connect the NRST pin too in these type of situations. But in the datasheet I could not find a clear answer to that. Can you please comment on this and share your insights please. It would be a great help.I have configured the Serial Wired and everyting in the setup.I know the ST Link V2 is working because I can flash my Bluepill and other STM32 MCUs with it.Best Regards

Hello,I wanted some more clarification on the st25r3916B chip, it is very interesting as well as cheap compared to st25r3916 and covers my needs.are they interchangeable? do they have pin to pin compatibility? the firmware has not yet been released or is it compatible with RFAL for ST25R3916?thank you very much and greetings.D.

Hi,This error was raised using Touchgfx 4.19.1, CubeMX 6.5. Nothing interesting in the project, just the default settings of Nucleo f446re, adding gfx software pack and adding a clock in the designer -> generate code and compile in CubeIDE and again in uVision. Same error and I cannot find this file searching the file explorer ! Your help is much appreciated.

The issue:The directory structure generated by TouchGFX for 2 core STM32H747 is just very complicated.By complicated I mean it's not only difficult to navigate for me as a user, but also for IDEs like STM32CubeIDE, VSCode and its various C++ plugins.Let me explain:Let's say we have a Startup Screen.The view source file is located in gui/src/startup_screen/StartupView.cpp file.The view header file is located in gui/include/gui/startup_screen/StartupView.hpp file.(The gui directory is located in /CM7/TouchGFX, but that's fine.)I configured VSCode to see the includes properly and even installed an extension that understands that convoluted folder structure and it's capable of quickly switch between headers and source. However - implementing functions extension can't do the trick, it still can't find the source.I can manually move the source and header files to whatever location I like and it will compile, however, the TouchGFX will stop cooperating with such modified project ;)What I'm lo

I want the Nucleo board 303RE to act as a debugger for my external board. Two boards have an individual 3.3V supply so the ground has been made common. Other Hardware connections are below. Since CUBE IDE doesn't allow to flash Bin files using ST-LINK ....My question which software should I use to flash the bin file into the external board using Nucleo board's ST-Link. an anyone reply ASAP. Moreover when I select ELF file in CUBE IDE and debug my external board using Nucleo board's ST-LINK it gets into Hard fault handler....I checked the syntax of my code there is no issues with it....What should be the proper software and way to flash a bin file into external board using Nucleo's STlink and SWD?

Hello, ST expert​From the picture below, it showes that 5V tolerent GPIO connect to VDD_FT through a protection diode. But what is detailed difference between VDD_FT and VDD?​ BRYang​

Can LED2472G be used as a shift register to drive signal relays with coil current of < 30mA. Can they be used as generic shift registers too?Thanks!Håvard.

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Hello,I have a problem with pins PC2_C and PC3_C on STM32H7. We have custom board based on this MCU and we want to interface SD card via SPI. We are using these pins: PA9 as SCK, PA0 as CS, PC2_C and PC3_C as MISO and MOSI respectively. I can not initialize the SD card to SPI mode and I think that the problem is caused by PC3_C pin. This MCU does not have PC2 and PC3 connected to external pads, so we must close the analog switch between PC2+PC2_C and PC3+PC3_C. This is done using SYSCFG_PMCR register. By my understanding, those switches are on this MCU closed by default, but I can close them either way using:HAL_SYSCFG_AnalogSwitchConfig(SYSCFG_SWITCH_PC2, SYSCFG_SWITCH_PC2_CLOSE); HAL_SYSCFG_AnalogSwitchConfig(SYSCFG_SWITCH_PC3, SYSCFG_SWITCH_PC3_CLOSE);The switches close properly, as I can control those two pins manually. Now my problem is that on pin PC3_C - MOSI, the edges during SPI communication are so slow, that the SD card is not working.I tried toggling the pins manually with

Hi All,Currently I try to compiler(clean and build)  X-CUBE-CLASSB project for MCU self test function. I got error as below Does anyone know what wrong or missing setting something? I had try compiler in two project , all get error.IDE: IAR 9.20.4WIN 11STM32G081B_Eval STM32G474_Nucleo  Sam

My goal is to transfer the contents of an integer array (8 bits per value) to 8 GPIO pins.Using the CubeMX perspective in the CubeIDE (latest version) I configured the DMA2 to work with Timer1 in the memory to peripheral mode. I am using the STM32 F4 Discovery board (STM32F407VG)I need a Hello World on how to push one value of an array to the GPIO pins. The GPIO pins used are GPIOE pins 8 through 15.If the array value is 1 (0xFF), the GPIO pins should have the values "1 1 1 1 1 1 1 1" Configuration Tim1:clock source: internalcounter settings:prescaler: 0period: 11no clock divisionauto-reload preload disabled Configuration DMA:DMA peripheral DMA2Stream 5DMA request: TIM1_UPDirection: Memory to PeripheralPriority Very High The following code was used after initialization of the peripherals (initialization was done using auto generated code): /*The array filled with zeros*/#define BUFLEN (512)uint16_t dmabuf[BUFLEN]; HAL_DMA_Init(&hdma_tim1_up);HAL_D

Is there a way to stop the project being rebuilt when I run it? I'd prefer to use the last build, rather than building again every time.I checked the project and build configuration options but couldn't see anything. Thanks.