STM32 MCUs Products

Hi,I'm developing a product based on ST controller.Regards,

Sorry, are there has a pin call or used for SD_detect in Stm32l431rct6? I can not find in STM32L431xx Datasheet - production data. These has no mention.I do not know which pin(SD-Detect)should i choose for GPIO_Input of the FATS.

Hello,In STM32C0 RM0490, section 5.4.16, the RCC_AHBSMENR describes the bit SRAMSMEN which can be used to disable the SRAM clock during Sleep mode to save power.  We will be using the STM32C0 in a low-power application and I was wondering if the SRAM contents will be preserved if the SRAM clock is turned off while we are asleep?Typically we will be in Standby (or maybe Shutdown on the C0 instead) mode for long periods and then the MCU will come alive to do a sensor measurement over ~100ms.  During the measurement period we will typically be asleep in between interrupts (of which we will take ~4000 during this period, in a very short IRQ handler with SLEEPONEXIT enabled) and want to save as much power as possible while asleep since this is our "high consumption" phase.Thanks,TG

My input capture interrupt is fired over and over again. But when i put a breakpoint in the interrupt, and resume from it, it does not happen anymore.Timer setup:   // TIM 3 Inputs (Pedal rot - PB5 / Torc PWM - PB1) my_GPIO_InitStruct.Pin = GPIO_PIN_5 | GPIO_PIN_1; my_GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; my_GPIO_InitStruct.Pull = GPIO_PULLUP; HAL_GPIO_Init(GPIOB, &my_GPIO_InitStruct); GPIOB->AFR[0] |= ( GPIO_AFRL_AFSEL1_1 | // AF2 (all) GPIO_AFRL_AFSEL5_1); __disable_irq(); __HAL_RCC_TIM3_CLK_ENABLE(); SET_BIT( TIM3->CCMR1, TIM_CCMR1_CC2S_0); SET_BIT( TIM3->CCMR2, TIM_CCMR2_CC4S_0); // channel is configured as input, tim_ic1 is mapped on tim_ti1, etc... // TODO: filter?? SET_BIT( TIM3->CCER, TIM_CCER_CC2E | TIM_CCER_CC2NP | TIM_CCER_CC2P | TIM_CCER_CC4E | TIM_CCER_CC4NP | TIM_CCER_CC4P); // capture enable and Rising and falling e

Hi  techteam,Please provide and reference code example or community project which contains how to interfaces st pdm microphones with pdm /i2s/Sai peripheral of nucleo f446re board.Please note I have already went throught the appnote an5027.Waiting for positive reply.Best regards,Alex

We are starting a new design using the STM32H743 and we were hoping to find device tree source description of this MCU.  Does anyone know if this is available?

I'm creating a new USB device with a custom USB class on an STM32F779NIH.  We have previously developed a fully operational device doing the same thing with USB full speed, now we're trying to do the same with USB highspeed using an external ULPI. I'm reasonably certain the issue is firmware not hardware.The overall scheme is using bulk transfers to send data out at a periodic rate, say 1ms for example, so 8 microframes will elapse before data is sent back to a read request. The PC read function will blocks until it receives that data which creates a timing loop that turns out is quite resilient compared to Windows timers. Anyway, back to this device, when I run my user application, it will generate a read request for which the device will return a response after 1ms with a set of data which is correctly decoded.  This is repeated 8 times, but on the 8th packet, my device returns no data and a status of 0xC0000011 (which is a USBD_STATUS_XACT_ERROR) according to Wir

Getting this error "assertion "Balloc succeeded" failed: file "/build/gnu-tools-for-stm32_10.3-2021.10.20211105-1100/src/newlib/newlib/libc/stdlib/mprec.c", line 778" in runtime for stm32l452ret6p microcontroller. I am doing baremetal programming and using i2c, rtc, uart1, uart2, timer6 and timer2 peripherals. Not understanding what this error means. Also tried to find the file mentioned in the error message, no luck there also. please help with a solution.Thanks and Regards,Suhaib Saiyde

Hi, Can the VBAT pin on this part be left floating? I currently have the pin disconnected. Or should it be tied to VDD or GND in order for the part to function properly?  Thanks,   

Hello,I am attempting to create a guitar hero-style game using the B-L4S5I-IOT1A board. I have an array representing the notes to play and wish to update the display every 125ms with a new gameplay frame (a given frame has the next 10 notes the user must play).Currently, I am overriding the void HAL_TIM_PeriodElapsedCallback() function to print to the screen using UART. I have attached my UART configuration below:Additionally, I have an array with values from 0 to 7 where the number represents the button configuration to be pressed (ex/ 3 is 011 indicating button 2 and 3 should be pressed at this point in time)

Hi, I want to implement a sensor hub that can connect to multiple (e.g. 8 ) sensors (from the same type), collect data from them, aggregates the data into a single message and sends it out. The board will be custom, if necessary, and based on e.g. STM32F0 MCU. The sensors themselves are made by ST and there are drivers available. Is there any software library that helps with implementing such a sensor hub (given it's a common use case)? Esspresif has a software module that does something very similar to what I need The only thing I could find for STM32 is the 

I am using an stm32h563 nucleo 144 board, and I am frequently running into the issue that after a power cycle the LSE does not start.This is the relevant part of my SystemClock_Config: LL_PWR_EnableBkUpAccess();while (LL_PWR_IsEnabledBkUpAccess () == 0U){} LL_RCC_LSE_SetDriveCapability(LL_RCC_LSEDRIVE_LOW);LL_RCC_LSE_Enable(); /* Wait till LSE is ready */while (LL_RCC_LSE_IsReady() != 1){} and LL_RCC_LSE_IsReady() never returns 1 in that case, no matter how long I wait.Also, I can reflash a debug firmware via SWD, attach the debugger, and still end up in the same loop.I need to power cycle the board again, to resolve th

Hello everyone, I hope you are well.I'm starting a new project using the STM32H573I-DK kit, where I would have to connect to AWS and publish the value of some sensors. The first step was following the webinar https://content.st.com/stm32h5-connects-smart-things-in-a-secure-way.html, I managed to proceed to the part of the video that set the end_point, however, gave the following error:After noticing this error, I tried to check via code what could be happening. Then I realized that it was not possible to debug the code

Hi all!I'm currently programming a pulser and have to write a list of registers. I prepared the communication on SPI (which works), only to realise the pulser can only be programmed over QSPI.Now I'm having some issues switching my code from SPI to QSPI communication. Below is the initial code in SPI format that is running just fine when analysing the output using a Logic Analyser: The logic analyser output looks about as follows, with the white being MOSI, yellow CS and green CLK:

Hi,I've been trying to adapt the current SPI driver in RIOT OS to support the U5 series(STM32U585AI), due to my lack of success I've been trying to sidestep RIOT for a moment and try to do must of the setup manually. But so far I have not been able to get SPI3 to output anything, not even an SCLK signal, leading me to believe that I've just missed something simple like some clock domain etc.  My approach so far:enable HSI clockenable VddIO2select HSI timer for SPI3enable SPI3 peripheralenable GPIO ports B & Greset SPI3 CR1write SPI3 CFG1, CFG2, CR2set SPE, SSI bits in CR1set CSTART in CR1read write to TXDR, RXDRHowever step 8, specifically setting the SPE is where the problem becomes apparent, the SPE bit does not stay enabled. Does anyone have any hints on where to look to get this running?

Dear all,In the last weeks we have started the production process of a specific equipment, using the new microcontroller STM32G031C6 and unfortunettly we have faced some problems after the programming process.The problem is that some devices were apparently corrupted by removing programmer cable before disconnecting the microcontroller (or because a bad connection) and there is no way to recover them.This is the logging information of Jlink programmer:Connecting ... - Connecting via USB to probe/ programmer device 0 - Probe/ Programmer firmware: J-Link Ultra V4 compiled Sep 22 2022 15:00:10 - Probe/ Programmer S/N: 504502941 - Device "STM32G031C6" selected. - Target interface speed: 4000 kHz (Fixed) - VTar

Hi there,I have a touchGFX project with STM32F429BI, which uses the external SDRAM for the buffer, and the Nand Flash for the image.Both SDRAM and Nand Flash work well when turning off the other.But when I enable LTDC, the Nand Flash always gives an error when reading/writing it.It seems the access to Nand Flash and SDRAM is conflicting.Does anyone know how to deal with it?Thank you.

I have timer 3, that i want to set up for input capture. But when enabling the alternate function. The pullup is not working. Also an external pullup of 10K does not work. GPIO setup:    // TIM 3 Inputs (Pedal rot - PB5 / Torc PWM - PB1) my_GPIO_InitStruct.Pin = GPIO_PIN_5 | GPIO_PIN_1; my_GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; my_GPIO_InitStruct.Pull = GPIO_PULLUP; HAL_GPIO_Init(GPIOB, &my_GPIO_InitStruct); GPIOC->AFR[0] |= ( GPIO_AFRL_AFSEL1_1 | // AF2 (all) GPIO_AFRL_AFSEL5_1);    Timer setup:    __disable_irq(); __HAL_RCC_TIM3_CLK_ENABLE(); SET_BIT( TIM3->CCMR1, TIM_CCMR1_CC2S_0); SET_BIT( TIM3->CCMR2, TIM_CCMR2_CC4S_0); // channel is configured as input, tim_ic1 is mapped on tim_ti1, etc... // TO

Hello everyone!I'm asking for your help with the following: I have a board equipped with an STM32L151 processor, with which I use an STM32 ISM330DHCX IMU via I2C. The ODR is set to 52Hz for both the gyroscope and the accelerometer, and I request an accelerometer interrupt on the INT1 pin. In the interrupt handler, I simply set a (volatile) boolean value to true, and in the main loop, I read out the sensor values. Meanwhile, messages arrive via UART at a frequency of 20Hz, to which I respond with a slight delay in milliseconds. Both UART RX and TX are set to DMA mode. In certain cases, the I2C communication fails, and I suspect that this is because while the I2C communication is in progress, a UART (or DMA) interrupt interrupts it. This is visible on the oscilloscope as well: yellow is UART communication (RS485 in this case), pink indicates data retrieval function call in the main loop, and blue is the I2C SDA pin.What would

Hello everyone.Is it possible to directly replace STM32H743VIT6 processor with STM32H743ZIT6 without changing the program code? Will there be any differences in the performance of the DSP device with this processor?Thanks in advance for your reply, Chris.

Hi, STM experts, This question is regarding STM32L4 series MCU. It is about DMA controller's trigger.Let's say we have two DMA channel, DMA_A and DMA_B. Is it possible to configure the system so that when DMA_A's task is finished, DMA_A send a trigger to start DMA_B which is programmed with a different task. In the whole process, we expect that there is no CPU involvement.Thanks!// JC1985

We are using the STM32F429 in an ongoing project.The CAN bus is used for the communication. In a new project we change to the STM32G473VE.The STM32G43VE is equiped with an FD CAN.The low level interface is slightly different between CAN on the STM32F and FD CAN on the STM32G4.After rewriting the software for the FD CAN, we have found that the Tx completed call back is not called. Callbacks are registered, but the IRQ remains off.The callback registration for the F4 is:// HAL_CAN_RegisterCallback(&hfdcan1, HAL_CAN_TX_MAILBOX0_COMPLETE_CB_ID, MessageTransmittedCallback);// HAL_CAN_RegisterCallback(&hfdcan1, HAL_CAN_TX_MAILBOX1_COMPLETE_CB_ID, MessageTransmittedCallback);// HAL_CAN_RegisterCallback(&hfdcan1, HAL_CAN_TX_MAILBOX2_COMPLETE_CB_ID, MessageTransmittedCallback);Which is the equvalent register call back for the FD CAN?HAL_FDCAN_RegisterCallback(&hfdcan1, HAL_FDCAN_TX_FIFO_EMPTY_CB_ID,

Dear ST Community,I'm hoping to get some help identifying the manufacturer, year, and month of manufacturing for an STM32f103c8t6 microcontroller I have. The part number on the chip is 991KA 93 MYS A03.I've searched the code online and in the datasheet, but I haven't been able to find any information about the manufacturing date. Could you please advise on how to identify this information from the code or if there's another method to determine the manufacture date and year?

Hello All,   I am trying to implement baremetal implementation for Continous Conversion Mode. I have wrote the below code. I am expecting that the ADC will read A0-B0-A1-B0 in this sequence. However the code is only reading A0 and not any other pins. I am using STM32F401RE nucleo Board. I am not able to clear EOC as well!! typedef struct{ float AN[4]; }ADC_Vals_t; int main(void) { uint16_t data; float ADC_volt; ADC_Vals_t ADCVal; int i=0; /*Enable clock to GPIO peripheral*/ RCC->AHB1ENR|= (0x1<<RCC_AHB1ENR_GPIOAEN_Pos); //Enable GPIOA RCC->AHB1ENR |= (0x1<<RCC_AHB1ENR_GPIOBEN_Pos); //Enable GPIOB /*Set GPIO to Analog Mode*/ GPIOA->MODER |= (0x3<<GPIO_MODER_MODER0_Pos); // GPIO A0 GPIOA->MODER |= (0x3<<GPIO_MODER_MODER1_Pos); //GPIO A1 GPIOA->MODER |= (0x3<<GPIO_MODER_MODER4_Pos); //GPIO A4 GPIOB->MODER |= (0x3<<GPIO_MODER_MODER0_Pos); //GPIO B0 /*

Hey guys.I'm trying to build a custom Pcb that doesn't include the onboard st-link and be able to program it though the STDC14 connector.I found some schematics about the nucleo H7A3ZI-Q board, but i was confused about a couple of things.1) The STDC14 connector uses the T_SWDIO and T_SWCLK pins. Do these pins go through the onboard st-link before reaching the processor?2) What pins on the processor does the swi correspond to? Does it use the same pins as the default usart interface?3) Would it be easier to flash the onboard processor if i used the CN2 Header? ( swd interface) Do these pins go through the on-board st link first, before reaching the processor?