STM32 MCUs Products

Hello ST, I am trying to integrate ThreadX into TFM_Appli-NonSecure project. Mostly I am able to integrate it and execute but to make a thread run, I have to comment _tx_initialize_low_level(); API in _tx_initialize_kernel_enter() function.This all work smoothly until I try thread context switching. My initial understanding assumption says pendsv_hander is not getting called.Could I get some more insight to resolve this issue as there is no direct example available for this.

Hello everyone,I’m working with an STM32 G0 microcontroller and encountering an issue with reading data from two sensors. One of the sensors provides consistent and accurate readings, however, the second sensor shows intermittent spikes to zero in the readings. These spikes occur periodically and affect the integrity of the data.I’ve checked both hardware and software configurations, but haven’t found any obvious issues. Has anyone experienced a similar problem or have any idea what might be causing these zero spikes in the sensor data reading?I know I’m not showing any information about my configuration but if anywho thinks could help me i share as much as i haveI left the signal reading of the adc that goes wrong

I'm using a Nucleo-G474RE to measure a signal via ADC1.ADC measures are triggered by TIM2, then transferred via DMA1 into a large buffer (60KB).When the buffer is full an interrupt is generated and I give the DMA another 60KB buffer.After that, everything is stopped and I upload the buffers to the PC via LPUART1.Finally I check the result with a 100Hz sinusoidal input.So far so good, I can set TIM2 up to 3.86333MHz, but anything above will result in a sub-sampling output (between 2 and 3Msmpl/s).That's 44 cycles (clock is 170MHz on all buses). I was expecting to go higher, since I set the ADC measure time to its minimum (2.5 cycles sampling time, 8 bits, no filtering), so a measure should take ~11 cycles, plus the DMA transfer (1 byte of data), so maybe 20 cycles per measure.No transfer error or ADC overrun is reported, and nothing else runs during the measures.My question is: what could possibly eat up 24 cycles per measure, a

Hello,I am trying to transmit some data on my STM32F042F6P6. But my PC's serial monitor only picks up some of it. Here is the code and the serial monitor output:void readAllRegs(void){ uint8_t value; for (uint8_t addr = 0x00; addr <= 0x2E; addr++) { value = readReg(addr); printf("0x%x: 0x%x (%d) \n", addr, value, value); fflush(stdout); }}int _write(int file, char *ptr, int len){ CDC_Transmit_FS((uint8_t *)ptr, len); return len;}0x0: 0x29 (41) 0x1: 0x2e (46) 0x4: 0xd3 (211) 0x6: 0xff (255) 0x7: 0x4 (4) 0xa: 0x0 (0) 0xd: 0x1e (30) 0x10: 0x8c (140) 0x13: 0x22 (34) 0x14: 0xf8 (248) 0x16: 0x7 (7) 0x19: 0x76 (118) 0x1a: 0x6c (108) 0x1d: 0x91 (145) 0x1f: 0x6b (107) 0x20: 0xf8 (248) 0x23: 0xa9 (169) 0x25: 0x20 (32) 0x26: 0xd (13) 0x29: 0x59 (89) 0x2c: 0x88 (136) When I

Hi,I am using STM32F205 Board for our development. We were using HSI (16MHZ) as the clock and found out that HSI has issues with high temperatures. I am calibrating HSITRIM value to fix the clock drift issue and we already have 50 boards manufactured. Now we decided to use crystal oscillator (25MHz) as HSE.How do I determine if we connected external crystal oscillator to stm32 to configure the clock correctly?

Hi,I'm working on stm32l496 and I try to write data to a custom flash section, in the .ld file I put new sector :/* Memories definition */MEMORY{[...]FLASH (rx) : ORIGIN = 0x08003800, LENGTH = 0x07B800config(rx) : ORIGIN = 0x0807F000, LENGTH = 2Kcommon(rxw) : ORIGIN = 0x0807F800, LENGTH = 2K}[...]PROVIDE(_config_page_start = ORIGIN(config)); PROVIDE(_common_page_start = ORIGIN(common));I set it like this to flash config or common page without touch my program section.I have no difficulty to read data from this pages. But when I use `HAL_FLASH_Program()` function to write data in 'common' section, I have an error.After reseach the error may be due to ASSERT checking if the address is whitin the flash range.This is my code :error_e mcu_flash_program_data(uint32_t start_addr, const void *data, size_t size) { HAL

Hi,I have a board with an STM32U575 at the core.I'm attempting to set up SAI receiver in I2S mode, with 32-bit 48kHz sampling. See my configuration of SAI A below: I also want to receive the data continuously in circular mode via DMA (or GPDMA in the case of this MCU).Reading other sources, I've concluded that the following setup should be established:

  static uint16_t aDST_Buffer_1[BUFFER_SIZE] = {0}; static uint16_t aDST_Buffer_2[BUFFER_SIZE] = {0}; LL_DMA_LinkNodeTypeDef pNode1, pNode2; /** * @brief LPDMA1 transfer configuration * @PAram None * @retval None */ void BspLPDMA1Init(void) { /* DMA node configuration declaration */ LL_DMA_InitNodeTypeDef DMA_InitNodeStruct; LL_DMA_InitLinkedListTypeDef DMA_InitLinkedListStruct; /* Set node configuration ################################################*/ /* Set node type */ DMA_InitNodeStruct.NodeType = LL_DMA_LPDMA_LINEAR_NODE; /* Set node configuration */ DMA_InitNodeStruct.BlkHWRequest = LL_DMA_HWREQUEST_SINGLEBURST; DMA_InitNodeStruct.Direction = LL_DMA_DIRECTION_MEMORY_TO_MEMORY; DMA_InitNodeStruct.DestAllocatedPort = LL_DMA_DEST_ALLOCATED_PORT1; DMA_InitNodeStruct.DestBurstLength = 1U; DMA_InitNodeStruct.DestIncMode = LL_DMA

I am starting a product design tentatively using the STM32F072RBT6.I want to determine how soon the CTS input must go low to prevent the USART from transmitting the next byte.Even informed opinion would be appreciated; but a reference to documentation or direct experience would be  preferable.One note in the reference manual says, "For correct behavior, CTS must be de-asserted at least 3 USART clock source periodsbefore the end of the current character."  page 740, Reference Manual PDF [What about the first character?]  I assume that what they mean is "before the beginning of the next character"? Which clock is "USART clock source"?In this diagram fro

Hello,I'm trying to work with the ADC of the STM32L433 microcontroller. The Reference manual (RM0394) on page 448 it says : The following formula gives the actual VDDA voltage supplying the device:VDDA = 3.0 V x VREFINT_CAL / VREFINT_DATAWhere can I found the VREFINT_CAL value, I'm not able to find the address on the RM ? Thank youRiccardo

Hello,I will use stm32g473VC ADC2 working together with DMA.I configure ADC2, Input3 at Pin PA6 and DMA2 Channel1 to read 100 Samples from ADC after Start.At first call after cpu reset I receive the expected result:ADC:Value 4034 for Items 0->99, as you can see in following output. (what is a correct value)Item0: 4034Item1: 4034Item2: 4034Item3: 4036Item98: 4034Item99: 4034But at the 2nd and following  starts of DMA, the first received value is 0.Item0: 0Item1: 4035Item2: 4035Item3: 4035Item98: 4035Item99: 4035At every start I call the following functions:LL_ADC_ClearFlag_EOC(ADC2);LL_ADC_ClearFlag_EOS(ADC2);LL_ADC_ClearFlag_EOSMP(ADC2);LL_ADC_ClearFlag_OVR(ADC2);LL_DMA_SetDataLength(DMA2, LL_DMA_CHANNEL_1, 100U);LL_ADC_REG_StartConversion(AD

 Hello,I have designed a PCB with 3 STM32H725VGT6 MCUs, and assembled them according to my schematic:(sorry for this resolution, this is from a converted pdf)All 3 MCUs are the same, from this schematic.R5 and R2 are just 0R jumpers to select the boot mode.At first, ST-Link couldn't find any of them.  When I checked the voltage on the Vcap pin the MCU1 had 1.0008 V at both 2.2uF caps. STLINK still can't find the target. MCU2 and MCU3 had 0.0000V. on the Vcap pins.All 3 MCUs have their:- Orientation in the right place- VDDA / VREF+ connect

Looks to me like the FDCAN peripheral has a few registers that are marked 'r' when they are likely 'rw' in the RM. They are the registers that configure the size of the FDCAN messages. This isn't blocking my work; only thought the ST team should know so they can fix it if it is indeed a typo. 

Trying to implement a composite HID device on STM32F042 (or maybe STM32F072 as both Flash and RAM usage seem insane), starting from the MX mouse middleware. After much scratching around it's finally working as a mouse and keyboard and I now need to add remote wakeup from a few buttons. Unfortunately the middleware has no support for it, nor any hints as to how to implement it. There are a number of posts on here in a similar vain but none really provide any solutions. I'm experienced with HID implementations on much simpler 8-bit devices (Cypress) of the 'bare metal' variety and am finding using other people's muddleware very hard going. Not a spelling mistake, by the way. I have so far managed to get the f/w to wake up on the press of a single button by adding a bit of code to HAL_PCD_SuspendCallback... { /* Inform USB library that core enters in suspend Mode. */ USBD_LL_Suspend((USBD_HandleTypeDef*)hpcd->pD

Hi I have Windows 10 with all windows updates . Antivirus is disabled.When i try to install the stm32 st-link utility 4.6.0 it starts to install but before there should be device driver installation wizard i get a msg But i dont know what block this or why this is happend. there is no logs. Please help me is a urgent . And this windows below i can close only when i start task manager as administrator and kill the process. I also try it to install it when i log in in pc as local administrator. but the error is the same. on other fresh installed pc i can install it without problems so i know that normally t

Posted on August 07, 2013 at 21:21 I'm confused about the FIFO error flag (FEIF) when I set up DMA for direct mode transfers. As I understand it, in direct mode the FIFO is disabled. But for some reason, if I enable the FE interrupt in the DMA_SxFCR register then shortly after I enable DMA I see the FIFO error flag get set. Any ideas why? Is this flag a don't care in direct mode? To give you an idea of the application, I store a bunch of data in a SPI flash that I send to a codec over I2S. The I2S transfer happens using DMA. The code I'm using to set everything up is below. /* Initialize I2S GPIOs - follow procedure in stm32f4xx_spi.c * I2S_SCLK - Port B, Pin 10 (pin13) * I2S_WS - Port B, Pin 12 * I2S_SDO - Port C, Pin 3 (Port B, Pin 15) * I2S_SDI - (Port B, Pin 14) * I2S_MCLK - Port C, Pin 6 */ RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB | RCC_AHB1Periph_GPIOC, ENABLE); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_13| GPIO_Pin_14| GPIO

Hi!I'm an EE designing a PCB. Referencing the datasheet: https://www.st.com/resource/en/datasheet/stm32l412k8.pdfSection 7.4 on page 178, UFQFPN48, the Exposed Pad (EP) says that it should be connected to GND.Section 7.6 on page 184, UFQFPN32 (the chip that I'm using) the EP function isn't mentioned. Should I connect this to GND or leave it floating?My gut instinct is to connect it to GND, though has anyone had any experience with EPs and the ST standard way of dealing with them?Thank you for any assistance in advance.Pete.

Hi,i'm trying to upload my firmware with FDCAN system bootloader in STM32H563.As this article(https://community.st.com/t5/stm32cubeprogrammer-mcus/fdcan-programming-support/td-p/199854) says that ST link debugger and STM32 cube programmer don't support FD CAN bootloader.is there a way(custom GUI program or something like STM32 cube programmer and custom debugger like ST link) to use FDCAN system bootloader?

Heyho,just checking the migration guide AN5293 for some peripherals I have not yet ported from F7 to H7:if not mentioned in the document, are the peripherals completely and 100% identical (registers & bits) ?Just checked for I2C, and it is not mentioned (except there's an additional I2C5 on H7 or so).

 When I send data from esp32 to stm32, it works fine. But when esp32 initially receives data from stm32 using uart, the data seems to have some random characters.When i send 75, it looks like this in serial monitor:Received: %$^#^12Received: 12Received: 12I used KeilC and ArduinoIDE. I just want to get "Received: 12" from stm32. This is my code:esp32:#include <HardwareSerial.h> #define UART_TX_PIN 17 // TX #define UART_RX_PIN 16 // RX int d1 = 7; int d2 = 5; char tx_array[10]; int flag = 0; HardwareSerial SerialUART(2); // Create an instance of HardwareSerial for UART1 void setup() { Serial.begin(115200); // Initialize Serial Monitor for debugging SerialUART.begin(115200, SERIAL_8N1, UART_RX_PIN, UART_TX_PIN); // Initialize UART1 } void loop() { tx_array[0] = d1 + '0'; tx_array[1] = d2 + '0'; tx_array[2] = '\n'; // Line feed character //tx_array[3] = '\0'; // Null terminator SerialUART.print(tx_array

I have developed a custom controller that uses the STM32G474RE to regulate the output voltage of two power supplies.I am now developing the code to implement a peak-current mode controller for each of the two power supplies.  Is there a way that I can use the one FMAC to implement the required filtering for both power supplies?If not, I suppose that I can use PID control on one of the two power supplies.Any suggestions would be welcome...Thank you,David 

I have connected 100k NTC  with 100K PU resistance. ADC is measuring voltage on NTC is 1580 mV. While multimeter shows 1410 mV. 1410mV is correct number as it gives 32 degC  temperature.I am using ADC in polling mode. I added HAL_ADCEx_Calibration_Start also and ADC measurement changes to 1650 mV. please suggest on how to remove error.  

HI,I'm working with a micro from the H7 family (H723).I have to implement CAN communication on two distinct peripherals (FDCAN1 and FDCAN2) in interrupt mode but the system doesn't work.Below are the settings I use in my project: void MX_FDCAN2_Init(void) { /*USER CODE BEGIN FDCAN2_Init 0 */ /*USER CODE END FDCAN2_Init 0 */ /*USER CODE BEGIN FDCAN2_Init 1 */ /*USER CODE END FDCAN2_Init 1 */ hfdcan2.Instance = FDCAN2; hfdcan2.Init.FrameFormat = FDCAN_FRAME_CLASSIC; hfdcan2.Init.Mode = FDCAN_MODE_NORMAL; hfdcan2.Init.AutoRetransmission = DISABLE; hfdcan2.Init.TransmitPause = ENABLE; hfdcan2.Init.ProtocolException = DISABLE; hfdcan2.Init.NominalPrescaler = CAN_PRES; hfdcan2.Init.NominalSyncJumpWidth = CAN_SJW; hfdcan2.Init.NominalTimeSeg1 = CAN_T1; hfdcan2.Init.NominalTimeSeg2 = CAN_T2; hfdcan2.Init.DataPrescaler = CAN_DATA_PRES; hfdcan2.Init.DataSyncJumpWidth = CAN_DATA_SJW; hfdcan2.Init.DataTimeSeg

Hii everyone!We are working on CAN , and MCU is stm32f103When we are taking output on blue-pill Tx and Rx pin Data is comingBut when are are doing same on custom board data is not showing ,we are uploading same firmware and clock configuration is also sameFor testing ,In custom board when we are Toggling Tx and Rx pin of CAN that is PA12 and PA11 with same speed pluses are showing ,we check code and there is also no error.Can you tell me what is the issue ,why data is not receiving on Tx and Rx pin of custom board??