STM32 MCUs Products

Hello! How are you?I'm having trouble again with the "TRGO" trigger event on the Master and Slave Timers. I need multi-channel PWM, but Timer 1 (the Master) and Timer 2 (which simply starts simultaneously with Timer 1) generate PWM with a single (initial) phase, and each timer operates on two PWM channel outputs. However, Slave Timers 15 and 3 should start generating PWM on their outputs (each timer uses two PWM channels) with some delay. This delay is provided by Timer Master 1 on its "TRGO" output, and I'm using the "OC3_REF" channel for this. Please see the diagram for this multi-channel PWM operation. Everything works perfectly, as expected, but only until all the specified Timers are stopped and then restarted. After that, Slave Timers 15 and 3 stop starting (see the screenshot of the oscilloscope display of all PWM channels for these Timers). I'll now provide the code for starting and stopping these Timers. There's a lot of code, so this is the most important part for now. I've a

Hi,I’m working with an STM32G070RBT6 MCU and trying to flash it over UART. The UART lines are directly connected to an FTDI adapter, which is connected to my PC via USB. The COM ports show up correctly, but when I try flashing through STM32CubeProgrammer using the UART option, it repeatedly fails with the error message shown below.I’m currently using PA2/PA3 as the UART pins."18:15:17 : Error: Activating device: KO. Please, verify the boot mode configuration and check the serial port configuration. Reset your device then try again...18:16:25 : RTS low18:16:25 : DTR Low18:16:25 : Serial Port COM27 is successfully opened.18:16:25 : Port configuration: parity = even, baudrate = 115200, data-bit = 8, stop-bit = 1.0, flow-control = off18:16:29 : Timeout error occured while waiting for acknowledgement.18:16:29 : Error: Activating device: KO. Please, verify the boot mode configuration and check the serial port configuration. Reset your device then try again... "

here : https://www.st.com/resource/en/reference_manual/rm0390-stm32f446xx-advanced-armbased-32bit-mcus-stmicroelectronics.pdfThe Status register (USART_SR) Reset value is  0x00C0 0000, which is wrong.

Hi,MasterMCU: STM32H743IILVGL: V9.1Problem Description:I have an external SDRAM with a size of 32MB.The program is configured as follows:void sys_cache_enable(void) { SCB_EnableICache(); SCB_EnableDCache(); SCB->CACR |= 1 << 2; } void mpu_memory_protection(void) { // RAM 512K mpu_set_protection( 0x24000000, MPU_REGION_SIZE_512KB, MPU_REGION_NUMBER1, MPU_REGION_FULL_ACCESS, MPU_ACCESS_SHAREABLE, MPU_ACCESS_CACHEABLE, MPU_ACCESS_NOT_BUFFERABLE); // EXSDRAM 32M mpu_set_protection( 0XC0000000, MPU_REGION_SIZE_32MB, MPU_REGION_NUMBER2, MPU_REGION_FULL_ACCESS, MPU_ACCESS_SHAREABLE, MPU_ACCESS_CACHEABLE, MPU_ACCESS_NOT_BUFFERABLE); }The LVGL related frame buffers are stored in the external SDRAM as shown below.static color_t render_buff1[1024 * 600]; static color_t render_buff2[1024 * 600]; static color_t frame_buff[1024 * 600]; // LVGL uses double buffering for rendering. lv_display_set_buffers(disp, render_buff1, render_buff2, sizeof(render_bu

Post edited by ST moderator to be inline with the community rules especially with the code sharing. In next time please use </> button to paste your code. Please read this post: How to insert source code. Hi everyone, I am working on Classic CAN communication using the STM32H745I-Discovery board with FDCAN2.My target CAN configuration is 500 Kbps nominal baud rate with a 16 MHz clock. Below is my initialization code: static void MX_FDCAN2_Init(void) { hfdcan2.Instance = FDCAN2; hfdcan2.Init.FrameFormat = FDCAN_FRAME_CLASSIC; hfdcan2.Init.Mode = FDCAN_MODE_NORMAL; hfdcan2.Init.AutoRetransmission = ENABLE; hfdcan2.Init.TransmitPause = DISABLE; hfdcan2.Init.ProtocolException = ENABLE; // Timing config: 500 Kbps @ 16 MHz hfdcan2.Init.NominalPrescaler = 1; hfdcan2.Init.NominalSyncJumpWidth = 1; hfdcan2.Init.NominalTimeSeg1 = 23; hfdcan2.Init.NominalTimeSeg2 = 8; hfdcan2.Init.DataPrescaler = 1; hfdcan2.Init.DataSyncJumpWidth = 1; hfdcan2.Init.DataTimeSeg1 = 1; hfdcan2.Init.DataTimeSe

New question from this thread. Hi @mƎALLEm  I am using STM32N6 Nucleo-144 board. In this board VDDIO is the power supplied at VDD, VBAT. VDDIO2, VDDIO4, and VDDIO5. So this the the power supply which is driving GPIOs. This power is generated by LD39020ADTPU33R which is a LDO Voltage Regulators which can supply maximum 200 mA current. I am worried about if i can only use 10 GPIOs? What if i need to more GPIOs in my design?

I'm using an STM32H750XBH6 MCU with two external Flash(W25Q256 X2) chips connected via QSPI. I followed the guide (W25Q FLASH Memory || Part 10 || QSPI & External Loader on H750) to create a custom external loader (.stldr) using STM32CubeIDE, and I modified the loader to match my specific hardware setup.However, programming fails and I receive the following error messages when using STM32 ST-LINK Utility:16:07:41 : Timeout during flash programming16:07:41 : Error occurred during erase operation!16:07:41 : Unable to run On-Chip verification!16:07:42 : Programmed memory Checksum: 0x0000000016:07:48 : Cannot read external memory!I've attached my loader source code for reference.Could someone help me check if there are any mistakes or missing steps in my setup or configuration?Thank you in advance!

I want to provide external reference voltage to 16-bit ADC.So i need to remove the  R36.And Vref is connected to Vref+ pin on the board.These two things are the only steps i need to do right, after that i have to connect my external source to the vref+ pin and it will be the reference voltage for my ADC. And i need to make sure Vref<= Vdda, small increase might not be an issue right?  Are there anything else i need to look into

I want to use the EMMC as USB storage space, but I encountered another issue: I am trying to access the EMMC via SDMM1, and after implementing the MSC-related functions (read, write, USBD_STORAGE_GetMediaLastLba, USBD_STORAGE_GetMediaBlocklength) in ux_device_msc.c, the formatting operation on the PC side fails. The error message says: "Please insert a disk into the removable disk."I have already verified that after initializing SDMM1, the EMMC can be accessed and read/write operations are successful. What could be the reason for this issue?The attached file is my project.ux_device_msc.c：    

Hello, I am working on the STM32G431RB Nucleo board, specifically on the internal temperature sensor. I am facing issues in getting accurate readings. For your reference, I have attached: My code implementation An Excel sheet comparing temperature readings with respect to a thermal chamber The sensor readings are not matching the expected values. Could you please guide me on the correct way to use this sensor and help identify any corrections required in my implementation? /* USER CODE END Header */ /* Includes ------------------------------------------------------------------*/ #include "main.h" /* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ /* USER CODE END Includes */ /* Private typedef -----------------------------------------------------------*/ /* USER CODE BEGIN PTD */ uint16_t adc_val,ref_adc,ts_ref,ts_cal1,ts_cal2; float vdd,temp,vdd,avg_temp; float alpha =0.075; #define TS_CAL1 ((uint16_t * ) 0x1FFF75A

Post edited by ST moderator to be inline with the community rules especially with the code sharing. 1- In next time please use </> button to paste your code. Please read this post: How to insert source code. 2- Post is not related to CubeIDE usage but more to the product so it needs to be moved to "STM32 MCUs Products" forum. So please don't post your question in CubeIDE only if it's related to CubeIDE usage or to raise a limitation in it.   I have a 110k resistor in series with a 110k thermistor as well, at the midpoint I connect PC0, the other leg of the thermistor to 3.3v,  the sConfig.SamplingTime is 247.5.  But the readings are 110 Celsius when it should read 22 Celsius, what am I doing wrong,  this is my code, thanks define R_SERIE 115000.0f // resistor fijo del divisor #define BETA 3950.0f // coef. beta del NTC #define T0 298.15f // 25 °C en Kelvin #define R0 115000.0f // resistencia nominal NTC a 25°C ADC_HandleTypeDef hadc1; volatile uint16_t adc_va

I tried to search the forum so I'm sorry if there is a solution posted to this problem.I have been struggling with creating the pattern inside the image. Every 10 seconds I want a short heartbeat pulse generated by DAC. (DAC goes high, then low).The period can experience a bit of jitter, no problem, but ideally it's every 10 seconds. However, the pulse is very important to have the correct timing as it is not allowed to be longer. I have tried to drive a timer in OPM mode with a slower timer as trigger, and the timers worked, but I couldn't get DAC and DMA to function the way I wanted, if this approach is possible, configuration pointers would be appreciated.I have also tried to enable a timer in software and disable it on DAC DMA complete transfer interrupt but this didn't work too well. If there is any way I can toggle the DAC with help of a timers capture compare that would be great. Then I could just enable the timer on some sys tick interrupt, use two CC's and disable it

I am working with an STM32N6 microcontroller and need clarification about the electrical characteristics of its GPIO pins. How much current a GPIO can source and sink. Is it in micro Amps or mili Amps.

HelloSTM32H7R3L8I have trouble using the circular mode of GPDMA when trying to transmit data over SPI4. When I set the GPDMA channel 12 to be in circular mode, it generates the GPDMA channel init in the msp init file instead of the main file as if it is a linked list. When I try to start the SPI DMA transmit with function HAL_SPI_Transmit_DMA, then I get an error in the following section of the function’s code/* Packing mode management is enabled by the DMA settings */ if (((hspi->Init.DataSize > SPI_DATASIZE_16BIT) && (hspi->hdmatx->Init.SrcDataWidth != DMA_SRC_DATAWIDTH_WORD) && \ (IS_SPI_FULL_INSTANCE(hspi->Instance))) || \ ((hspi->Init.DataSize > SPI_DATASIZE_8BIT) && (hspi->hdmatx->Init.SrcDataWidth == DMA_SRC_DATAWIDTH_BYTE))) { /* Restriction the DMA data received is not allowed in this mode */ __HAL_UNLOCK(hspi); return HAL_ERROR; } However the transmission works fine if the GPDMA was in standard, non circular and n

I have a question about configuring pin D1 for UART1 TX (in conjunction with pin E2, UART1 RX).Pin D1 has the option for PA11, [PA9], PA8Pin E2 has the option for PA12, [PA10], PA71. To use pin D1 for UART1 TX, PA11 must be switched to PA9 (SYSCFG_CFGR1: PA11_RMP: = 1).2. To use pin E2 as PA12, E2 (PA7 default) must be switched to PA12 (SYSCFG_CFGR3: PINMUX4[1:0] = 1).3. To use pin E2 for UART1 RX, PA12 must be switched to PA10 (SYSCFG_CFGR1: PA12_RMP: = 1). Question:What is the default setting for pin D1 (PA11 or PA8)? How is PA11 bound to pin D1? I am missing a setting like (2.) for pin D1. I could not find anything in the manual.When I configure this setting with STM32CubeMX, the following code is generated:HAL_SYSCFG_EnableRemap(SYSCFG_REMAP_PA11); // (1.) HAL_SYSCFG_EnableRemap(SYSCFG_REMAP_PA12); // (3.) HAL_SYSCFG_SetPinBinding(HAL_BIND_WLCSP12_PINE2_PA12); // (2.)Where is the binding for pin D1? Many thanks in advance.Dirk    

Hi all,I am a newer STM32 programmer, and I have been working on the STM32H745 Discovery board for the last few months. Something that I would like to do is be able to switch into USB DFU Mode within a UI that I have made for this board. I took inspiration from this post and changed the address to the appropriate one for the STM32H745. I would like to prerequisite that the USB port is initially configured as a VCP/CDC device. Here is the code that I have:void (*SysMemBootJump) (void); void USB_BootloaderInit() { volatile uint32_t addr = 0x1FFF9800; //from AN2606 __disable_irq(); // Reset USB OTG_FS // Disable caches SCB_DisableICache(); SCB_DisableDCache(); // Remap vector table HAL_RCC_DeInit(); //Reset the system clock SysTick->CTRL = 0; //Reset the SysTick Timer SysTick->LOAD = 0; SysTick->VAL = 0; SysMemBootJump = (void (*)(void)) (*((uint32_t *)(addr + 4))); //Point the PC to the System Memory reset vector __set_MSP(*(uint32_t *)addr); //Set the M

Hi everyone,I’m working on an STM32 firmware project (HAL + CubeIDE). I’m trying to output debug messages to Tera Term via UART using printf and puts.Here’s the situation:Debug build: Both printf and puts work perfectly.Release build: Calling printf or puts causes the MCU to reset immediately. Maybe due to watchdog reset and these function call cause the MCU freezing.I also retarget the printf function by implemented the following: int __io_putchar(int ch) { while (!(huart1.Instance->ISR & USART_ISR_TXE)); huart1.Instance->TDR = (uint16_t)ch; return ch; } int _write(int file, char *ptr, int len) { for (int i = 0; i < len; i++) { __io_putchar(ptr[i]); } return len; }My questions:Why do printf and puts crash/reset in Release but work in Debug?Are there known issues with _write or __io_putchar in Release builds?Any recommended approach to safely use printf/puts in Release firmware for UART output?Thanks in advance! 

Hi there,I am using STM32G473CBT6, and work with a bootloader and application.When I set the application address at 0x08008000, everything works well.However, when I change the application address to 0x0800A000, the application download fails, except when I download the bootloader (configuring it as 'erase all chip') first.I checked the reference manual, and the flash is separated into 2K/4K on each page.That means both 0x08008000 and 0x0800A000 addresses are at the page edge.Why can't the application at 0x0800A000 work smoothly?Thanks for your help! 

HELLO ,In STM32F103C8T6, the RTC time is preserved after power off, but the date always resets to 01/01/2000 even if I set the current date and time.

Hi,I am using STM32L4R9ZIJ6 microcontroller.I have connected an external reference voltage of 3.3V to VREF+ pin and wanted to use internal reference voltage over this one for internal ADC read operation. Is that possible?I tried configuring the MCU to enable VREFINT for internal ADC1 read but I can still see that the external 3.3V is being taken by the ADC for conversions. Can someone please answer this?Thanks.

Dear STMicroelectronics Support Team,I am working with the STM32U585I-IOT02A development board, and I need assistance with the following:Entering and waking from low power modes (STOP2 or STANDBY) using the RTC wakeup timerConfiguring UART1 with DMA and ensuring it resumes correctly after waking upHandling interrupts before and after sleep modesI have tried implementing the configuration using STM32CubeIDE and HAL libraries. However, I'm encountering issues where UART DMA does not resume correctly after wake-up.I would appreciate any official guidance or example code specific to STM32U585.

Hi, I'm trying to configure an STM32H753 FDCAN peripheral to be compatible with both CAN-FD & CAN 2.0 frames, in both the Tx & Rx directions.   How should I configure the FD-CAN peripheral to achieve this? I've been through he RM0433 document as best I can and am struggling to find this information.

I want to use the SMT32N6 VFBGA142 or VFBGA169 package.  These parts do NOT have XPSIM_P1(on port PO).  They only have XPSIM_P2(on port PN).Can I connect both Octo FLASH and Octo PSRAM on port PN and use the two chip selects (NCS1 & NCS2) to independently talk to the chips?  I need to boot off the FLASH and then use the PSRAM to execute the program.Any signal integrity issues or gotchas I need to keep in mind? 

Hi,The example for FSBL works as describedhttps://community.st.com/t5/stm32-mcus/how-to-configure-the-linked-list-mode-in-stm32cubemx/ta-p/693779But if the same approach is applied to Appli (Secure) code, the "User Setting Error" raised in DMA IRQ.I use the XIP configuration.Could you please elaborate chages to be made in Secure code? 

Hi, Im using my own I2C library but after i write the device adress when i receive SB interrupt the adress bit never seems to be set to 1. I have tried testing it with HAL and it seems to work fine. I would be happy if someone could helpvoid I2C_EventInterruptHandler(I2C_Com* i2c) { uint8_t temp; //Check if event interrupt bit is set if(I2C_CheckBitStatus(&i2c->i2cReg->I2C_CR2, 9)) { //Start condition if(I2C_CheckBitStatus(&i2c->i2cReg->I2C_SR1, 0)) { temp = i2c->i2cReg->I2C_SR1; i2c->i2cReg->I2C_DR = i2c->deviceAddress; } //Check for address sent if(I2C_CheckBitStatus(&i2c->i2cReg->I2C_SR1, 1)) { //Check if its in read mode and if rxLegth is 1 if(i2c->deviceAddress & 1 && i2c->rxLength == 1) { //Disable ack i2c->i2cReg->I2C_CR1 &= ~(1 << 10); i2c->i2cReg->I2C_CR1 |= (1 << 9); } temp = i2c->i2cReg->I2C_SR1; temp = i2c->i2cReg->