STM32 MCUs Products

  Hello to everyone. I'm working on a display interface, changing from M3 -> M4 -> H5 CPUs. The issue appeared on all type(it's a HW issue?) At the beginning I can connect, debug, program and so on. Bt after some operation, I can't continue. I still have a "No STM target found" error, from CubeIDE and Programmer. What I can see is that the CPU voltage is not 3.3V, but less:   This happen with different STLINK-V2 or V3. Obviously I check the volts on SWD pin 1 and it's always ~3.3V When this happen I usually pas to another board/JTAG. But a

Hi everyone,Designing the BLE (bluetooth low energy) part of my software, I have to use BlueNRG-1, BlueNRG-2 DK SW package.First of all, I included by hands the library file (.a).But there is a lot of source-code that is not provided in the library (but in others files), I then decided to include manually headers file and others source code files (.c). Dont know if its a good practice.Are their others options instead of manually including .a, .h and .c files ?I recently realized that new versions of source code was available, and manually do migration every-time is error-prone and long to do.Thanks for advice !

Hi,I am using the nucleo-H503RB I3C (Controller mode) with this example to connect to an I3C standard chip. The sensor transmits IBI with 5 bits of payload but I noticed that the STM32 receives only 4 bits, and then it stops receiving the fifth bit.Is there any method I can define the receive IBI payload size on the controller side? Any kind of help is appreciated. :) 

Hi everyone i bought bluepill with fake chip and i replaced it with an original stm32f103c8t6.When i use stlink utility with other fake bluepill it detecets the chip but when i use stlink utility with original chip in a fake bluepill board i get this error.I checked the connections with a multimeter for Chip to stlink connections for swdio,swclk, 3.3 and gnd pins. All of them are connected properly but still can't get rid of this error. I checked other connections there is no short circuits any of the unreleated pins. What should i do ? 

Hi,We are currently working with the STM32G0B1VET6 Microcontroller and have been designing connections for the SWD interface. However, upon verifying the datasheets, we couldn't find any mention of a JTAG interface for debugging purposes.Could you please confirm whether the JTAG interface is available for debugging on this microcontroller?Thanks.

Hi, I have a help  we purchased with your chip, but it seems that it is fake, please let me know if the name or engraving is printed on your chip? Thank for your support 

Hi, when I tried to set the clock  of I3C which is 12.5Mhz, it didn't work properly. Do I need something else to have 12.5mhz frequency? Thanks,Luke.  

STM32F7 Series

In the manual it states, that reset value is 0x000.., and that 0xFFFF... is reserved. But when debugging, i see, that it is 0xFF... . When now assigning a new value to it via HAL_GPIO_Init(), the register does not take the new values.Hold on!I just found the solution while writing this post:Copied the code from another project, but forgot the part where the clock of that Port was activated!

I have tried many things but cannot seem to get ADC multichannel DMA with Freertos on STM32H735G-DK working.I have setup the ADC to use DMA following many tutorials. I have set up a task to start the ADC with DMA, but the conversion complete callback never gets called.So I reduced it to using just one channel with DMA, and still no good. I am using ADC3 channel 10. Any ideas?Attached is my main.c 

Dear Experts,I need your help, I am interfacing 16-bit DAC LTC1668 50MHz with STM32F411CCU6. I have used Timer 4 as 1MHz CLK for DAC, on Half Pulse Complete interrupt I update the GPIO Port (Port A A0-A7 are D0-D7, Port B B0-B7 are D8-D15). But Facing problem as the Data on the ports take 3 to 4 CLK cycles to change. As I lower the CLK to 275KHz the Data on ports changes before the next cycle. How can I make it change before the next cycle in higher frequencies say 5MHz to 10MHz. For Sinewave Data points are generated through python program, further these data points are being transfered through USB, But now I am stuck here.I have attached RCC CLK configs, Pin configs, Timer Configs. I can share more details if needed. Here is the code for Timer Interrut Routine:-   const uint16_t pypoints[2750] = {32768,33516,34264,35012,..........

Hi Team,I'm working with the STM32H745I-DISCO board for UART communication. As I'm working with UART, I'm able to get the data through UART3 from STLINK. But I also need same communication through UART 1 and UART4. Could you please help me with the exact ports and pins needs to be connected for individual UARTs for the transmission?Thanks

Hi,I'm creating a Keil project (uVision V5.36.0.0) for a STM32H563ZITx target using the reference https://developer.arm.com/documentation/ka003120/latest/After choosing STM32CubeMX under Run time Environment settings and generating the gdsc file from CubeMX and pasting it manually where the Keil project requires it to be present, I see that the project now has 'STM32CubeMX:Common Sources' section.I want to delete main.c from Common sources and use my own source file but I am unable to delete the files under this group. Does anyone know how to resolve this?

Hello! I have a H563ZI and a KEYSIGHT oscilloscope.I configured H563ZI as controller and sent an ENTDAA , then problem occired:        1.slave updated its dynamic address which as same as static address and different with what i set.         2.there was no waveform on oscilloscope.I set trigger voltage to 2V. Can anybody help me?Thanks a lot!

Hello STM32 community,I am currently working on a project utilizing the STM32H757 microcontroller, which boasts 8 UART interfaces. In my application, I have configured all UARTs to operate in interrupt mode for receiving data.My concern arises when multiple UART RX interrupts occur simultaneously. Specifically, if four RX interrupts are triggered at the same time, I would like to ensure that none of these interrupts are missed ?please give answer   khodifad lalit

#define EEPROM_SEC __attribute__((long_call, section("EepromSection")))EEPROM_SECint add(int a, int b) {return a + b;}static __attribute__(( aligned(32))) uint32_t code_buf[20] = { 0 };//...int main(void) {HAL_Init();SystemClock_Config();MX_GPIO_Init();MX_I2C1_Init();EEPROM_Init();printf(add);//If I do not do this despite all my efforts, the compiler ignores the add functionEEPROM_Read(code_buf, 64, 0);int (*my_summer)(int, int);my_summer = ((uint32_t *)(code_buf));my_summer(100, 20);while (1) {}}error causing code(asm) : push {r7}What do you think I'm doing wrong?

Hi, I wonder has anyone experience with baremetal USART implementation as I have attached a Source file for USART for a 'STM32G0B1RET' discovery board but it just sits there and doesn't transmit anything? See attached (usart.c). I have basically just copied this from a working F4 board and modified it for a G0 board (assuming it would work!?)...  

Hi,I try to bring the STM32G030 into the bootloader mode, but this isn't works.It works only when the option bytes are set to nBOOT_SEL = 1, nBOOT1 = 1 and nBOOT0 = 0.At that moment we can upload the FW, but when we reset the MCU he will not starts again.Only when we set nBoot0 to 1 again in the option byte.Also when we clear only the nBOOT_SEL = 0, the MCU goes never in bootloader mode. (runs normal)We try it with BOOTpin = 0 or 1 before we giving a reset puls. So what we doing wrong here?

Is it possible to obtain the stlinkV2 serial number using the command line tool?  I would like to read it and verify it matches the expected programmers serial number.  

 I am using STM32G030F6P6TR controller,using cube IDE so

Hi,my post build command produces the following output with 16 Byte per data line:  :020000040802F0 :1000000000000120E9C00008593D0008CD3D00086E :100010001D3E00081F3E0008213E000800000000B1arm-atollic-eabi-objcopy.exe -O ihex --gap-fill 0x00 --pad-to 0x08019000 "${BuildArtifactFileBaseName}.elf" "${BuildArtifactFileBaseName}.hex"   I want to have 32 Bytes in a data line e.g.  :020000040802F0 :2000000000000120E9C00008593D0008CD3D00081D3E00081F3E0008213E0008000000002F  What additional flag can I use to change this?Thanks in advanceMartin

Hi Guys,I will use STM32C011F6U7 did my devices development, but I can not certain that the schematic is correct or not, is right for NRST part? same time I want to know what tools should I used to download FW to units, 5 pins J-LINK or others 4 pins tool? any comments? 

Just came across this post:https://community.st.com/t5/stm32-mcus-products/oscillator-selection-for-stm32g4/m-p/571716/highlight/true#M217792which quotes AN2867 saying that MEMS oscillators are, "compatible with all STM32 MCUs/MPUs, except for the STM32F1 and STM32L1 series." (my emphasis)  So what is it that makes the F1 and L1 unable to use MEMS oscillators?

I know the product is new, but are there already some plans on the horizon to maybe increase the flash size and/or have some more intermediate sizes?

Hi, I have a question. I just completed a program for a dual processor MCU, specifically an STM32H745, which has one M7 core and one M4 core. Now I have to organize the production of a hundred cards, and the manufacturer asked me for the .hex file to load into the chip. But in the CubeIDE project, two completely separate projects were generated, each of which generated a .hex file. So I find myself in the situation of having two .hex files, one for the M4 and one for the M7, while the manufacturer of the card, having only one chip, expects only one .hex file to load. How should I proceed in this situation, what is the exact procedure to load two .hex file into the same chip?