STM32 MCUs Products

Hi, I am working on STM32C071 I wrote code to jump to ST bootloader from my application. The code seems to work well, after jump to ST bootloader, I can connect to ST Bootloader by USB, using STM32CubeProgrammer. I can read flash data, option byte.... But if I do erase flash or change anything, STM32CubeProgrammer throws a failed message and exit STM bootloader mode. Below is my jump function:       void (*SysMemBootJump)(void); void JumpToBootloader(void){ SysMemBootJump = (void (*)(void)) (*((uint32_t *) ((0x1FFF0000 + 4)))); /* Set the clock to the default state */ HAL_RCC_DeInit(); /* Disable Systick timer */ SysTick->CTRL = 0; SysTick->LOAD = 0; SysTick->VAL = 0; volatile uint32_t msp = *(__IO uint32_t*)(0x1FFF0000); __HAL_RCC_USB_CLK_DISABLE(); /* Disable all interrupts */ __disable_irq(); __set_MSP(msp); SysMemBootJump(); }         Below is failed message: The error is "verify flash protection" but there is no flash pro

Hello,I am trying to extend DTCM to 256K. I followed FLEXMEM Configurations example but I get HardFault as soon as I try to access DTCM in 0x30020000 - 0x30040000 address range. Could someone please provide working example of how to extend DTCM to 256K?

I use NUCLEO-H7S3L8 to evaluate our new solution. I want to use GPIO port P to control a few external components.I add some test code into NUCLEO-H7S3L8\Examples\GPIO\GPIO_IOTggle project, like the below snapped code:__HAL_RCC_GPIOP_CLK_ENABLE(); GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_PULLUP; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOP, &GPIO_InitStruct); HAL_GPIO_WritePin(GPIOP, GPIO_PIN_0, GPIO_PIN_SET); HAL_GPIO_WritePin(GPIOP, GPIO_PIN_1, GPIO_PIN_SET); HAL_GPIO_WritePin(GPIOP, GPIO_PIN_2, GPIO_PIN_SET); HAL_GPIO_WritePin(GPIOP, GPIO_PIN_3, GPIO_PIN_SET);After executed the above code, I halted the core and measured voltage of these pins with a multi-meter.These pins keep LOW voltage.Does it need an additional configuration when we want to use GPIO port M to P in STM32H7RS?Code formatting applied - please see How to insert source code for future ref

I am experimenting with a STM32G431 dev board (breadboard friendly) but eventually the project will use a STM32H723 mcu.I am generating PWM and PWMN signals with dead time using timer 15.  I need to generate additional signals based on these two and I would like to configure interrupts on the PWM and PWMN rising and falling edges.  I could short the PWM and PWMN pins to adjacent pins and configure those as EXTI inputs.  However, in a reply to another thread user @TDK said it is possible to configure a pin as both PWM and EXTI input and thus generate interrupts directly from the PWM signal.  This seems like a much better solution but unfortunately I haven't been able to figure out how to do it.  In STM32CubeMX if I configure a pin for PWM, then try to configure the same pin as EXTI, the PWM is disabled and the pin is configured just for EXTI.  And vice-versa.Is it possible to do what I want?  If so, how should I go about it?Thankspaul

Hello team,Good day,I am having USB Disconnect Issue with my custom board based on STM32F303 Device, configured as USB HID in Firmware with Full speed. Schematics attached here with.It is Self-Powered board and no VBUS Detection implemented, Currently.USB Cable from HOST PC will always plugged into our Board and upon power on it detects the Board as HID device successfully. and communication works fine as well.  Issue is : During real-time communication windows HID Function finds device disconnected. PC application is based on MFC VC++.We are not sure if it is beacuse of Noise or Immidiate VBUS Detection ? Regards,Bsuthar

I have my internal Vref set to 2.5V (stage 0).  The value reads correct (2.52V) with a meter on the test point below until I call HAL_ADC_Start_DMA().   Once HAL_ADC_Start_DMA() -> ADC_Enable() -> LL_ADC_Enable() is called the voltage goes up to around 2.9V. Any thoughts as to why this is happening? Thanks!

Hi,Still attempting to work with STM32F767ZI board to generate signals to manage I2S mic (INMP441)I have followed many recommendations, even used MX, but still no clock nor word select signals are generated from MCU....But throu GPIO I can generate a clean square signal ?! So ?Did I miss a thing ?Thx very much for your help

Hi everyone,I'm working with the STM32F405RGT6 and its CAN peripheral. I have a couple of questions regarding CRC handling:Does the STM32 CAN peripheral automatically calculate the CRC for both sent and received CAN messages?I noticed there is a CRC Error bit in the documentation. What is the purpose or functionality of this CRC Error bit?Thanks for your help!Best regards,

I am just getting started with the stm32h723 ADC.    If I create a regular sequence group of several input channels, how does my ISR know which channel was sampled last (which channel's data is in the DR)?  I don't see this in the registers.Thanks,Mark 

I am measuring time time it takes to do ADC conversions on an STM32H753ZI Nucleo board, using the function function HAL_ADC_Start_DMA().  This converts 6 channels of ADC3, using 16 bits, with DMA.  The one function call handles everything including DMA transfer.  Then I am waiting for DMA to complete using interrupt handler HAL_ADC_ConvCpltCallback().  I am surprised how long this is taking and would like to ask if anyone has ideas on how to speed it up, or if perhaps this is expected.  I set this up using CubeMX as follows:  ADC clock is10MHz. (I think max is 12MHz for 16bit ADC with LQFP144 package)CPU clock is 100MHz.ADC3 channels 0 thru 5 all have sample time 2.5 ADC clocksADC3 is set for 16 bits, conversion time = 8.5 ADC clocks I believeThis is a total of 11 ADC clock cycles, or 1.1usecSo for 6 channels total time should be about 1.1usec x 6 + DMA time, which should be 7-8usec.  But the time I measure from HAL_ADC_Start_DMA()

I’m working on a program to transmit data over SPI1 and SPI2 using DMA. For output I only use each peripheral’s CLK and MOSI lines. SPI1 and SPI2 differ only in the exact data being sent—their configurations and the number of bytes are identical. Also, when driving the lines I first need to bit-bang them, so I disable the peripheral, toggle the pins by software, and then re-enable the peripheral. With an oscilloscope I confirmed that SPI1’s CLK and MOSI, and SPI2’s CLK, all switch as expected—but SPI2’s MOSI never toggles correctly. I believe the peripheral setup is correct, yet when I remap SPI2-MOSI from PA4 to PA10, it works perfectly. Do you know why PA4 fails to output MOSI? Below, (1) is the code that was active when SPI2-MOSI was on PA4 (no output), and (2) is the code active when on PA10 (correct output). The PCB layout is already fixed, so if PA4 can’t serve as SPI2-MOSI it’s a serious problem. Now, I'm using Nucleo-G071RB for test. Any insights would be greatly appreciated.In

I am looking at a project where I would typically use an SBC, but wondering if ST has enough usb host support to accomplish this with existing usb stack software.  If so what would be recommended models?   Will be used as a usb host only (role change not required). Need to be able to work with usb 2.0 hubs (3 levels) and identify which port a device was plugged into.  Also wondering if usb HS vs FS would make a significant difference if I am supporting 20+ usb devices from the host management side? Need to mount usb mass storage device and read a file. Need to communicate with usb serial device (ttyACM). Thanks for the insights!      

Hello everyone, I'm currently working on an SPI bus on an STM32U031C6 + S2LP. I'd like to use my SPI with DMA mode. The SPI bus I used previously worked on this board. As this is my first time using DMA, I'm simply trying to send data without necessarily performing a read, but rather by analyzing the bytes using a logic analyzer. My SPI configuration is defined as follows://----------------------------------------------------------------------------- void S2LP_InitIO (void) //----------------------------------------------------------------------------- { RCC->APBENR2 |= RCC_APBENR2_SPI1EN; GPIOA->MODER = (GPIOA->MODER & ~(GPIO_MODER_MODE11)) | (GPIO_MODER_MODE11_0); //-- Select output mode (01) //--- PA15 en sortie (pour Spirit-SDn) --- GPIOA->MODER = (GPIOA->MODER & ~(GPIO_MODER_MODE15)) | (GPIO_MODER_MODE15_0); //-- Select output mode (01) //--- PA0 en entree sans pull-up/down (pour Spirit-GPIO0) --- GPIOA->MODER = (GPIOA->MODER & ~(GPIO

Hi,I’m using EDataBank_1 on an STM32 device to store user data after a power cycle. I based my code on the EraseProgram example and made these changes:What I did:Enabled FlashPeripheral and set EDataBank_1 size = 2On first boot, I do:Init → Erase → Program → ReadAfter a reset, I do:Init → Read → (optional Program)(I skip erase to keep the data)Problems:After writing, when I read back, I see userConfig is already set, which I didn’t expect.I can’t read memory at 0x09000000 using STM32Programmer. It always gives a read error.Questions:Why does userConfig look configured right after a write?How do I check if EDataBank_1 is still uninitialized (virgin) without erasing?Is the read error at 0x09000000 due to write failure or ECC error?How can I detect write errors or ECC issues?Goal:Save data onceRead/write it later without eraseKeep data even after power off Any help is appreciated. Thanks!Manikanta

Hi ST expertI'm ready to use STM32H723 now. Vcores can use internal LDOs or external power supplies via Vcap pins. If you use an external power supply, what is the current of the power supply, I see that there is only Idd in the datasheet.Thanks

Maybe it is not supposed to be used like this:Regular receive interrupt handler and using LL_USART_TransmitData8 function.Then sending a larger configuration file using HAL_UART_Transmit_DMA on demand.This leads to these flaws:1. HAL_UART_Transmit_DMA activates TC Interrupt which is not handled, garbage is sent after endof DMA unless LL_USART_DisableIT_TC(USARTx) is called in the DMA interrupt.2. next time  you try to start HAL_UART_Transmit_DMA does not work because of huartx.gState Busy flag, huartx.gState &= 0xfffffffe needs to done in the DMA interrupt. 3. if implementing 1. and 2. The second time of sending the configuration file misses one character, if LL_USART_TransmitData8 has been used in between, because USARTx->CR3 is 0x00003080 after using DMA, setting it to USARTx->CR3 = 0x3000; prevents losing one character.So I found "solutions" for these flaws, but I'm not happy with it. 

Hello.. can anyone advise where to download the F767 Nucleo BOM list? 

Does HAL_RTC_AlarmAEventCallback work if the the MCU is in shutdown ?I am using RTC wake-up timer for wake/shutdown cyclingRTC alarm for shutdown trigger via HAL_RTC_AlarmAEventCallbackBut:RTC Alarm A interrupt never fires if the MCU is in Shutdown mode waiting for the RTC Wake-Up timer.For test purposes I am using the following values:Wake cycle set to 10 secondsShutdown cycle set to 5 secondsAlarm set to 28 secondsFrom power up the MCU should run as follows...1. Wake cycle for 10 seconds2. Shutdown cycle for 5 seconds3. Wake cycle for 10 seconds4. Shutdown cycle for 5 seconds..... but after 3 seconds the alarm time is reached (28 seconds). 5. When the alarm occurs.... RTC wake is disabled and WKUP pin wake is enabled, then shutdown is called.6. The MCU must not wake until the WKUP pin is detectedRefer to the timing diagram below...I was hoping that if the alarm occurs during the 5 second shutdown cycle it would call the alarm interrupt in the next wake cycle.  But

      In my STM32G431CBU6 implementation, COMP1, COMP2 and COMP3 are configured for back-EMF zero-crossing detection with TIM1 CH5 serving as the blanking source. Both rising and falling edge interrupts are enabled on the comparators. TIM1 channels 1, 2 and 3 generate PWM signals for motor MOSFET driving. Despite TIM1 CH5 blanking covering the entire PWM period, the comparator interrupts continue to be erroneously triggered by PWM switching noise  

According to AN5054, to prepare SFI (secure internal firmware install) or SFIx (secure external firmware install) "STM32 Trusted Package Creator" is required. Were do I find it? Searching ST website I find no such software product. Was it maybe recently replaced or "absorbed" by STM32Cube Programmer?

Hi,I originally planned to program my STM32G030K6T6 via USB using the DFU bootloader, but the datasheet doesn’t mention USB_DM/USB_DP, and STM32CubeIDE’s .ioc file shows no USB option under Connectivity, so I believe USB DFU isn’t supported. What’s the best and easiest way to program this MCU, considering future mass production? I’m looking for a reliable, scalable method.Thank you for the assistance!STM32G0 Series Bootloader

Hi,I'm using the Zephyr platform with the STM32U5G9ZJ-DK2 board. I want to put the device into a low-power mode when it's not working. After modifying the DTS file and enabling power management, the device can enter and wake up from Stop3 mode normally. However, according to the datasheet, all IOs are in a floating state in Stop3 mode, but I need to control peripheral devices through some IOs. Is there any way for me to handle these IOs when entering and exiting Stop3, or can I choose to enter only Stop2 mode? Yang,BR

There is an inconsistency in the Reference Manual.The Reference Manual specifies on page 917 that:"Option 2) has the advantage of using the system without additional PLL. In addition, whenadc_sclk is twice faster than the adc_hclk clock, the latency between the trigger and thestart of conversion is fixed. This can be useful when the ADC is triggered by a timer and ifthe application requires that the ADC is precisely triggered without any uncertainty(otherwise, an uncertainty of the trigger instant is added by the resynchronizations betweenthe two clock domains)."At the same time, on page 1036 it says:"In synchronous clock mode, when adc_ker_ck = 2 x adc_hclk, there is no jitter in the delayfrom a timer trigger to the start of a conversion."Since adc_ker_ck is not the same as adc_sclk, and in fact will always be at least twice slower than adc_sclk, which of the two statements is the correct one?

Hi there Is there any stm32 MCU versions that has can run both CAN and USB simultaneously without conflicting with the PB8 boot pin? Also the USB will only be recognized if the PB8 pin is pulled high can i just directly connect it to 3.3v and always keep it on. will that be a problem 

Hi, I am new to the field of ST Microcontrollers and am currently working on developing firmware for a product that utilizes the STM32 Microcontroller, specifically the NUCLEO-H7A3ZI board. We are using the design implemented on this board as a reference for our product. This product will be deployed at remote locations for data collection purposes, among other things. We have a requirement from our customer to frequently update the firmware on these deployed products. The most feasible option we have identified is to distribute the latest firmware on USB pen drives, which local technicians or end-users can then use to perform the update. Could you please explain the necessary steps to accomplish this firmware update process using a USB pen drive? You can explain  the process of firmware upgrade using USB pen drive,  by taking a simple example say :Hello world or a LED blinking program as an example. Once I learn how to do it for simple LED blinking program I can extend it to