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I am trying to use the external i2c connector (CN4) on the STM32H753I-Eval2 board to connect with the i2c connector (CN2) on STM32F769I discovery board. STM32H753I works as master and STM32F769I works as slave.On STM32H753I, the function "HAL_I2C_Master_Transmit(&hi2c1, 0x20, TxBuffer, TXBUFFERSIZE, 1000)" is used to write data. It always fails at "I2C_WaitOnTXISFlagUntilTimeout(hi2c, Timeout, tickstart)" with the error of timeout. It seems the slave ACK is never received on the master board. I use STM32CubeMX to create the code and "MX_I2C1_Init()" return without any error. I also follow steps here to set up I2C1 in STM32CubeMX (https://wiki.st.com/stm32mcu/wiki/Getting_started_with_I2C#I2C_settings).Any insight is appreciated! Thanks!

Hi all,I plan to update my MCU. I would like to upload to MCU. bin file. If I understand correctly, this file can be uploaded entirely to the initial address of the MCU. It should not contain any extra data. I checked this file and just before the end there is extra data like gnu data and its versions. I don't understand where this data comes from. I did not find this data in another project.Is it related to some project setting?.  

stmcube ide 1.13.1.win32_1.1.0.202305231506/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/bin/ld.exe: C:/ST/STM32CubeIDE_1.13.0/STM32CubeIDE/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.11.3.rel1.win32_1.1.0.202305231506/tools/bin/../lib/gcc/arm-none-eabi/11.3.1/../../../../arm-none-eabi/lib/thumb/v8-m.main+fp/hard\libc_nano.a(libc_a-gettimeofdayr.o): in function `_gettimeofday_r':

Hi everybody,I'm working on a project where I have a pi cm4 connected to a STM32 (during testing we're using a STM32G07 dev board, but production will be using an STM32G03 chip). I've been asked to write a program to allow the cm4 to update the firmware via the uart. I've managed to get the program to reliably access the bootloader and run get, getv, getid, and readmem (for the flash memory). However when I try to run the write memory command it appears to run successfully, but when I read the memory address I just wrote to it returns the original value. I'm fairly certain that the write protection has already been disabled (checked using STM32CubeProgrammer), but I decided to try and run the write unprotect command just encase, but the chip seem to just hang after running the command.I'm a recent graduate, and this is my first job, so I'm fairly uncertain as to what I'm doing, so it's very possible I'm missing something important. Thanks for any assistance and patients.

I am using stm32f302r8t6 microcontroller. In standby mode, the pins on port A are high, which should not be the case for the card I designed. For the stm32f302r8t6 microcontroller, I should keep one pin on port A low in standby mode.

Hello,I am using the board "STM32F407G-DISC1" and I want to implement a test code for timers in output compare mode,Timers (2,3,4,5, and 12) worked perfectly.but it does not work for Timer 8 Channel 2 (I used all possible pins for this channel "PB0, PB14, PC7") none of them have worked.the code for timer 2 and timer 8 is attached  Thank you, Dema.

Hello, I'm using the X-Nucleo-NFC08A1 with the X_Cube NFC 6 and a NFC(V - ISO15693) Tag. I want to decrease the time for reading and writing. I also want do decrease the time for detecting a Tag. Are their any parameters to change or is the speed highly dependent on the Tag. I already lwered the discParam.totalDuration to 10ms and turned off all functions that work with a different type of Tag. Time to read a single Block: 11.38 ms Time to write a single Block: 15.65 ms Thank you for helpingRgds 

I am trying to view and debug the queues in my FreeRTOS project. To do this, I have to add the queues to registry with vQueueAddToRegistry. However, vQueueAddToRegistry takes an argument to a QueueHandle_t and in the project generated with STM32CubeMX I only have queue handles with the type osMessageQueueId_t. How do I get a QueueHandle_t that can be added to registry?

HI experts ,      May you have a nice day! this figure is in rm0440-STM32G4 Series Reference manual. STM32F4, STM32F3 have the same TIM.now I have some question:1. how can I configure the Modules in the red box, such as selecting x0, 01 or 11?2. I find CC1E and CC1NE can only enable the OC1 and OC1N output. WHY there are two function position(red box) for CC1E and CC1NE bit? is it something wrong? Looking forward to hearing from the experts!

Hi Forum..I would like to know if it exists any commercial tools available for doing some automated test for the gui which is usable in touchgfx.I mean something similar to this done for QT :https://www.froglogic.com/squish/editions/automated-testing-embedded-qt-guis-hmis/

HiI need to evaluate the ST Motor Control Kit STEVAL-CTM010V1 with ST Motor Profiler GUI Tool v5.4.8.But my board is not listed in the supported boards list. Can anyone please tell me if there is any way I can use the Motor Profiler tool with my Board.Although I can easily select the board in the Motor Control Workbench GUI v5.4.8 and it shows the block diagram with all configurations. ThanksManish

Hi, I accidentally encountered a problem with echo-received packets after transmitting. Is there a software initialization of FDCAN way to avoid it? I can't use a filter 'cause receiving the packet for MCU is possible.

Hi ST community,For a project I would like to generate two interdependent PWM signals (Sa and Sw in the attached figure) with the STM32G0. The constraints/tasks are as follows:tSw,off = constant for ~100nstSw,on = in a time range from ~100ns to 20us and is limited cycle by cycle by an active break (peak control application).tSa,off = set every 300us in a time range from ~100ns to 30us.tSa,on = is set every 300us in a time range from ~100ns to 5us.The times for tSa,off and tSa,on are thus adjusted every 300us. The time tSw,on is limited cycle by cycle by the active break.Following limitations I had to mention:I'm allowed to interrupt the software all 300us for a few us (so polling could be difficult).Focus on the STM32G0 microcontroller series.The on time tSw,on is limited cycle by cycle with an comparator.I will not present my previous approaches now, in order not to influence your ideas.I look forward to your feedback.Br, Stefan

Hi, thanks for reading my question.I use DMA for ADC, and it works well, one shot mode, and starts gain, data changed well from the ADC.But, if I read the data, then DMA works but it cant write it into the memory.  #define MAX_DMA_MEMORY_SIZE 2552 ALIGN_32BYTES (static uint8_t ADC_DMAMemory[MAX_DMA_MEMORY_SIZE]); HAL_ADC_Start_DMA(&hadc1, (uint32_t *) ADC_DMAMemory, MAX_DMA_MEMORY_SIZE);   and just copy the data 1 time   for(int i = 0; i < nsize; i++) { pVal[i] = ADC_DMAMemory[i+ioffset]; }  I use dma for 2552 data, and copy 2048 data to pVal. So just copied 389th array to 2437th.and after this copy, DMA refresh only 0 to 384th, and 2438 to 2552. DMA never write data to the address where i copied.if i dont copy data, it works well, every time, it writes new data. Please help me, i just went through H7 weird data cache usage, and i met another problem.Thanks in advance.

I want to program my STM32F091CC with the ST Link/V2 through Arduino. I downloaded the stw-link009 software and I can push Arduino code to the STM32. The problem is that I can not get serial communication so I can see serial prints or debug my code. I have been trying to fix this issue for several days now but don't see a solution. On other forms I see that it is impossible to get serial communication from an "external ST Link/V2 .. Thanks in advance.

When I try to set all details into the Motor Control Workbench (with Hall Sensors) at Motor Parameters, there are fields for Inertia and Friction, that I am not sure how to configure.The motor spec is as below images.  What should I set for Inertia and Friction.Inertia:      uN*m*s2Friction:     uN*m*sMany thanks,Tom

第一次在论坛中请教问题，如果有不对的地方，请及时通知修改，感谢 我在使用STM32H750XBH6 ，在使用STM32CUBEMX 自动生成代码时出现了问题，DMA的初始化代码没有自动生成，在不停地测试中发现，DMA Request 选择 dma_generator0-dma_generator7、MEM2MEM ， 可以生成代码，选择定时比较捕获输出通道作为请求源没有自动生成代码（例如 tim4_ch1\ch2 ,tim3_ch3\ch4）,cubemx版本号6.92，希望可以得到一些解决的建议 ，感谢  

Hi everyoneI would like to know where can I find ST25FTM library for iOS.Thank you 

Hi Team！ I would like to consider a gimbal with STEVAL-GMBL02V1 dev-kit.I would like to change the firmware and verify it, but only a hex format firmware is available. Is it possible to obtain the C/C++ source code?  

I there a way (device or API) to control STM32 resources via JTAG or SWD without the need to downloading a custom program?  For example, setup GPIO pin with pull-up and direction and then write value.  In addition, be able to perform more advance scenarios like reading/writing data via the I2C, SPI, or UART ports.  This would mainly be used for testing out new boards or manufacturing environments.I've seen projects like Firmata do similar, but was curious if there was something else provided directly by ST (or community) as more of a long-term standard.  Would be nice if something like ST7Programmer tooling/API could offer this ability.Thanks in advance for any help/references.

Hello everyone, I want to enable the AAT(Automatic Antenna Tuning). Can someone provide a example Thanks 

I have examined the FSM example folder on github and, while there is an example for an external magnetometer, I haven't found any examples for an external barometer. Is there such an example? And if so, where can I find it?I believe I can create my own, but it is always easier to follow a previous working example. Thanks!

I have learned that STEVAL-SMARTAG1 can power MCU through EH of ST25 to achieve wireless transmission function, then can I replace the digital sensor with a thermocouple as a principle to collect data?

Board: STM32F429I-disco1How can I send an I2C command when a button is being pressed? So I set up a FlexButton to act as a toggle button and set its interaction to call a function (ToggleMute) which I would need to implement.My idea was just to use the HAL_I2C_Master_Transmit function in the ToggleMute function which is in the file Screen1View.cpp/hpp but the issue that I ran into is that the variable hi2c3 which I need to pass to the HAL_I2C function is privately declared in main.c meaning I cannot access it. So I do not know what to do.I thought of maybe having to use the Model and ModelListener files by making a function in main.c which is the functionality of the ToggleMute function so that way my ToggleMute function in Screen1View can just call that function in main. Even if that is correct I would not know how to go about it exactly. 

Hi, I assigned all used GPIOs to desired functions except the PC2 at ball M1. The datasheet seems doesn't indicate this pin would be something special. I just need SPI2_MISO there but MX doesn't allow select anything, all choices are off just the Reset_State. Is it a bug? I use latest version of MX 6.9.2.