STM32 MCUs Products

It's possible to add my own piece of code to the make file? I'm asking because I've already tried to add it, but after clicking the "Build" button, my code disappears!PS - I want to add "Generate packed filesystem for serving Web UI".

Hi Team, I'm using STM32H743 series controller.I want to implement USB Base class on STM32H743. Unfortunately CubeMX will not support it.Any example code which works on Base class- 00h, Sub class -00h and protocol -00h

Hello,According to the datasheet PB7 can be used as  ADC_IN11.Is this an error in datasheet? ADC_IN11 is already used by PB10 and cubeMX doesn't seem to allow me to use PB7 or to remap this pin. How can I use ADC_IN11 on pin PB7 as mentioned in datasheet?Thanks  

Hi all,I´m new to STM32 and just recently bought an STM32H747I-DISCO. I needed one with a touch screen for a project. I was going thru the examples and got the LCD DSI SingleBuffer to work but was having problems with the JPEGDecodeFromFLASH DMA. I used the example given on STM32CUDEIDE, builded the project, debug and hit run but kept getting a white screen. I tried reinstalling the IDE and change workspace and ran it multiple times but couldn´t get the image to show. Is there a setting that needs to be set on the board first or do I need to upload a JPEG image into one of the folders?

Hi everyone,I'm getting stucked with a programming issue.I try to load a HEX file into a STM32L4A6 chip on a BMS board.I've checked the wiring of the st-link/v2 programmer and everything is OK.The chip can be read from the CUBE software but when i want to write the HEX file, i'm getting an error "failed to erase memory".The chip cannot be full erased also. The chip is not protected (level 0 "AA").With ST Link, i can't connect the chip ("No chip found") but the led goes green.I realy do not understand why it can be read and not write.If anyone can give me a hint, it would be great because it's too hot for me..Tomorow, i'll be able to give information about software versions and wiring..Chears

In our legacy STM32f103 project a ST library named "Self Test Library" is used. It has version 1.0, dated 10/01/2007. That library is certified according to IEC60335. I found it in an archive named IEC60335.zip, but I have no idea if that's the original archive name. Source files are named "stm32f10x_STL*.h/.c.Is the library still maintained? Can the original archive be downloaded somewhere?Are newer versions available?

All:Setup - STM32H723 with VREFP = 3.00 VI have connected internal temperature to ADC3, and I am able to display degrees C on "Live Expressions". With VREFP set to 3.00 V, I am seeing lower readings than ambient. Using __HAL_ADC_CALC_TEMPERATURE( ), I am seeing internal temperatures of 21 - 24 C, vs. ambient temperature of 25.8 C.Is there a variation based on VREFP? (Earlier on Nucleo board, I was seeing internal temperature of 30 C with VREFP of 3.3 volts.)Regards,Todd Anderson 

Hi. I am testing flash read and write operations.In the main function, when I write 1 to address 0x08006000, I can correctly read back 1. However, when using FreeRTOS and performing the same operation within a task, I read back  garbled values (such as 191, 111, etc.).I was wondering if it's a problem with my functions or it's not usable within FreeRTOS.void main(){FLASH_Write(ADDRESS, &data);printf("ADDRESS:%d\n",FLASH_Read(ADDRESS));} void FLASH_Write(uint32_t Address, uint8_t *pData){HAL_FLASH_Unlock();FLASH_EraseInitTypeDef EraseInitStruct;EraseInitStruct.TypeErase = FLASH_TYPEERASE_PAGES;EraseInitStruct.Page = 12; //address 08006000EraseInitStruct.Banks = FLASH_BANK_1;EraseInitStruct.NbPages = 1;uint32_t PageError;

I am using MX25 NOR flash memory 256Mbit (https://www.mxic.com.tw/en-us/products/NOR-Flash/Serial-NOR-Flash/Pages/spec.aspx?p=MX25L25645G&m=Serial%20NOR%20Flash&n=PM2075#Technical-Documents) and I am mounting a littleFS file system on it. The memory communicates through SPI with an STM32L562 microcontroller. After writting and reading files multiple times (more than 100) I get a hard fault. MX25_CMD.c is provided by the memory manufacturer and calls HAL_SPI_Receive(). It seems that the hard fault occurs in SPI_WaitFifoStateUntilTimeout().I am really blocked by this issue and I don't know towards which direction to look for solutions. Does anybody have any suggestions? The function calls (from recent to older) before the hard fault:

Hello guys!I'm using USB custom HID on STM32G0B for an application alike the mouse demo on "STM32G0C1E-EV" HAL package. But instead a button sending the Report, a PC software sends a 64 bytes Report to get another 64 bytes as answer.In fact, this same code worked flawless on STM32H750 but on G0, I'm always getting a "loopback" answer after "USBD_HID_SendReport()" function, with some garbage bytes. I'm suspicious of the "USB_WritePMA" function, as it put a byte pointer to word buffer...Do you guys have any tip about this?Thanks again!

Hi, I'm interested in using Timer 1 on my STM32F439ZI to decode the quadrature signal from an encoder but TIM1->CNT doesn't appear to change. I'm not sure what is missing, the TIM1 config looks like: static void MX_TIM1_Init(void) { /* USER CODE BEGIN TIM1_Init 0 */ /* USER CODE END TIM1_Init 0 */ TIM_Encoder_InitTypeDef sConfig = {0}; TIM_MasterConfigTypeDef sMasterConfig = {0}; /* USER CODE BEGIN TIM1_Init 1 */ /* USER CODE END TIM1_Init 1 */ htim1.Instance = TIM1; htim1.Init.Prescaler = 0; htim1.Init.CounterMode = TIM_COUNTERMODE_UP; htim1.Init.Period = 65535; htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; htim1.Init.RepetitionCounter = 0; htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE; sConfig.EncoderMode = TIM_ENCODERMODE_TI1; sConfig.IC1Polarity = TIM_ICPOLARITY_RISING; sConfig.IC1Selection = TIM_ICSELECTION_DIRECTTI; sConfig.IC1Prescaler = TIM_ICPSC_DIV1;

Hi, In my application, I'm using SPI (SPI1, a full feature set instance) with CRC enabled, on STM32H563ZI, with the configuration as:I have a CRC implemented based on CCIT standard, which I call 'software CRC'I see different CRC values for the same bytes of input from the micro and software CRC. Fig1. Software CRC whi

Hi guys,I have a simple timer config, which I want to change based on some conditions. I set GPIO high and when OPM timer INT happens, GPIO is set low. Default timer setup 50ms, which is changed to 500ms  in the while() loop.Problem: the first pulse duration after change is incorrect (old setup), then all works fine. Could some point out what is wrong in my setup?A short code sample is here:int main(void) { .... MX_TIM7_Init(); if (HAL_TIM_Base_Start_IT(&htim7) != HAL_OK) { /* Starting Error */ Error_Handler(); } while (1) { HAL_Delay(1000); GPIOA->BSRR = (uint32_t)GPIO_PIN_0; TIM7->CNT = 0; TIM7->PSC = 800-1; TIM7->ARR = 50000-1; TIM7->CR1 |= TIM_CR1_CEN | TIM_CR1_OPM; } } void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) { if (htim->Instance == TIM7) { GPIOA->BRR = (uint32_t)GPIO_PIN_0; } } static void MX_TIM7_Init(void) { ... htim7.Instance = TIM7

Hi,when I write 8byte block sequentially 256 times in 2kB page and then erase and start over what is the total number of writes I can do?Datasheet describes 10000 write/erase cycles, but I do not erase after every write.If the damage is cause by erase should the flash last longer with 1 erase per 256 writes?can I write 256 times before erase is necessary or it would somehow degrade other cells sooner?if there is a formula for write/erase damage ratio what is it?I use stm32g071 but I expect this to be common use case. 

Hi everyone, Recently started working on STM32C011J4M3. I'm trying to set PF2-NRST pin as a GPIO and I want Pin 4  to multiplexed  to PA0 USART TX pin. At first i tried  multiplexed the Pin 4 to PA0  using the following API                        " LL_SYSCFG_ConfigPinMux(LL_PINMUX_SO8_PIN4_PA0);"  but this didn't work  and to mention that this API function worked  on Pin 1 and Pin 5. I came across this post  to  set PF2-NRST pin as a GPIO  and change the Pin 4 to PA0 thinking that  multiplex is only done with GPIO Ports. I tried above code to set the NOT_RESET_INPUT_ONLY bit and clear the NOT_G

I've connected an STM32F103RBT6 Nucleo-64 to my computer and it worked fine for sometime, and then suddenly it lost connection. What is weird is that with the same cable, another identical board can connect without any issues. Does anyone have solution to this problem? (and it won't connect on other computers either).

Hi everyone,My bootloader is located at address 0x08000000,MEMORY{RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 8KROM (rx) : ORIGIN = 0x08000000, LENGTH = 32K}#define VECT_TAB_OFFSET 0x00000000Uand the app is at 0x08008000.MEMORY{RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 256KFLASH (rx) : ORIGIN = 0x08008000, LENGTH = 480K}#define VECT_TAB_OFFSET 0x00008000UAfter using HAL_NVIC_SystemReset(), the system restarts, runs the bootloader, and jumps to address 0x08008000 to begin executing the app. However, it shows that the app cannot be found at address 0x08008000. Is my app deleted from flash memory, or is there another reason?

I enabled the SPI CRC calculation (with a length SPI_CRC_LENGTH_16BIT) in my STM32H563ZI  master application. During Tx, I want the 2 bytes of the calculated CRC to be swapped and transmitted i.e. a CRC of 0xABCD must be sent out as 0xCD 0xAB and not as 0xAB 0xCD.Can someone let me know how to do this? Thanks. 

Hello,I am using the STM32U585 along with two sensors in a project and I need some help. I want to run my MCU in stop 3 mode primarily and have one of the sensors generate an interrupt on the PWR_WKUP pin of the MCU to return to normal mode and start polling data from the other sensor. I am not very experienced in programming and I'm finding it hard to find the functions needed in the IDE or information in the reference manual to do what I want. Any help would be greatly appreciated.Thanks.

I'm looking for the MTBT/FIT data for the STM32F103CBT6 Processor

-Hi, wanted to know, how to go about having a parallel bus shared by microcontroller and fpga. -fpga and microcontroller both r/w from external sram over the same bus.1. What should be the configs for microcontroller : fsmc in memory to memory with DMA2 burst?2. Will fpga and microcontroller both be masters in the bus. how can writing only 1 device is handled?please check 

If we want to pass some information from application running in a thread mode to an interrupt handler using normal SRAM memory (at 0x20000000 address) variables, do we need to do any special synchronization steps (such as calling Data Memory Barrier (DMB) instruction), or we do not? For example, in the application running in a thread mode, we write '0x1' value to a global 32-bit integer variable 'X'. Then an exception happens and processor starts executing the interrupt handler. Is it guaranteed that it will see 'X' as having '0x1'? So, in the application thread:LDR R1, =X // write address of X into R1 registerMOV R0, #1 // write 1 into R0 register

I want do design a board with stm32h7b0zbt6, I found there is a Evaluation board with STM32H7B3LI MCU, but I couldn't find the schematic file, I just find the user manual file with RM2662, I wonder is the schematic file is opensource ?

I need to reload the entire X1 buffer between FMAC operations. When the filter coefficient buffer is reloaded, does the FMAC do that in the background when a reload command is given or does the loading process run on the CPU? 

I think, using SAI for SPDIF Tx, can go wrong (in terms of clock config, the MCLKDIV setting):The CubeMX tool, used to configure SAI as SPDIF Tx, generates completely wrong PLL setting and codethe HAL driver, doing the config, in file "stm32xxx_hal_sai.c" can set a wrong MCLKDIV divider:resulting in half of the needed frequency for SPDIF, even you trim manually the C-code - it can go wrongDebugging SAI SPDIF Tx config on a STM32U5A5 MCU - I saw this: it seems to me, this bug (in HAL drivers) is there for years: in my old projects, years ago to get it working: I had to set SPDIF audio sampling rate to 96KHz - even it is 48KHz (but now obvious why after debugging the HAL code on this MCU).In order to get the right frequencies on SPDIF Tx, on a STM32U5A5, I have to set this PLL config:  /* 48 KHz SPDIF with scope/debug CubeMX cfg corre