STM32 MCUs Products

#include "main.h" SPI_HandleTypeDef hspi1; SPI_HandleTypeDef hspi3;   UART_HandleTypeDef huart3;   /* USER CODE BEGIN PV */ char spi_data_tx[1]={'1'}; char spi_data_rx[1]={'0'}; void SystemClock_Config(void); static void MX_GPIO_Init(void); static void MX_SPI1_Init(void); static void MX_SPI3_Init(void); static void MX_USART3_UART_

Hi, I would like to know method and sample code storing data without erasing whole memory page. I do refer example FLASH_EraseProgram, but i have wrote program that almost finish up the flash memory, if i erase a page, a 2KB page, it will erase my code map, and cause the program hardfault, the MCU i use is STM32C0 with 16KB flash. So, may i have some info to solve it? Thanks.

Hi guys,I could set MCU into bootloader mode manually by using PH3/Boot0, but I can't get trigger bootloader via SW... I did check previous posts, but somehow it does not help.HW setup: I have dev board with STM32L431. It has USART1 (PA9, PA10) connected to CP2105, which connected to the linux pc.So far I wonder about these points: Based on other posts, could someone confirm that system memory address on STM32L431 is 0x1FFF0000 (as in AN2606) ?Is __HAL_SYSCFG_REMAPMEMORY_SYSTEMFLASH() step needed on STM32L4?Anything else shall be changed in the code?Could CP2105 somehow affect the overall result?Any other suggestion or clues why triggering bootloader via SW does not work?Relevant code:void JumpToBootloader(void) { uint8_t i; void (*SysMemBootJump)(void); volatile uint32_t addr = 0x1FFF0000; __disable_irq(); SysTick->CTRL = 0;

HiI would like to debug STM32F303RDT6 using a combination of Keil and ULINK2.When I start debugging on the target microcontroller (STM32F303RDT6), **Not a genuine ST Device! Abort connection** is output as shown below.We investigated the cause.I found the following files.**C:\Keil_v5\ARM\PACK\.Web\Keil.STM32F3xx_DFP.pdsc**It seems that this process is failing.```xml        <!-- User-Defined Sequences -->        <sequence name="CheckID">          <block>            __var pidr1 = 0;

Getting this error and have no idea how to troubleshoot it further:Break at address "0x800c44e" with no debug information available, or outside of program code.<signal handler called>() at 0xfffffff1Break at address "0x8004bf4" with no debug information available, or outside of program code.Break at address "0x800c510" with no debug information available, or outside of program code.The error is triggered when I try and run audio to the DMA, specifically the call to 'HAL_SAI_Transmit_DMA' inside BSP_AUDIO_OUT_Play. I'm using very similar code to the BSP audio demo, which works fine if I run it, but when I try and run it on my code base it fails.It doesn't seem to be triggered at a consistent point in the code, just some point after I first start the DMA process.How do I figure this one out?Thanks!Chris

Hello,I'm currently sending AT commands to the Grove LoRa E5 module from Seed Studio, when I send commands like "AT," there is no response from the module. I've connected the module to the USART of the STM32L476RG board. If anyone has encountered and resolved a similar issue, i'd greatly appreciate your help. Best Regards.    

AN4073 states that ADCxDC2 can be used only if ADC frequency is at least 30 MHz. I used it by mistake with ADC frequency 22.5 MHz. It seemed like it improved the precision by about 5 LSBs. The software worked just fine: no crashes, no funny misbehaving. AN4073 does not refer STM32F446 as applicable MCU. STM32F446 reference points to AN4073 as relevant. Therefore there is conflict between these two documents. That leads me to think that the 30 MHz limit may be a mistake as well. Or was I very lucky? It would be fine to have a better explanation what ADCxDC2 exactly means so that I can have some clue about 30 MHz limit. AN4073 states only this: "it masks the internal flash noise during the last ADC sampling cycle". Which is rather vague. Any ideas?

The MCU used is STM32F103VET6. I want to use TIM3_CH1 (generating a PWM signal of 10kHz, 30% duty cycle) as the master input of TIM4_CH1. The TIM3 acts as the prescalar of TIM4 and thus making TIM4 to ouput a PWM signal of 200Hz and 60% duty cycle. The below is my configuration of TIM4_CH1 in CubeMX and the code generated for initializing TIM3_CH1 and TIM4_CH1:static void MX_TIM3_Init(void){ /* USER CODE BEGIN TIM3_Init 0 */ /* USER CODE END TIM3_Init 0 */&

Trying to configure my project to use USART2. When I opened "System Core" and "Connectivity", I see that a bunch of options are disabled or have warning signs. I haven't been able to find out why or how to change them, and this isn't an issue I have run into before... so any help would be greatly appreciated! 

MCU---STM32G0B0CET6CUBEIDE Settingx-tal 16MHzUSB CLOCK---48MHzUSB_DRD_FS---Host_Only_FS,USB_HOST---Mass Storage Host Class,FATFS---USB DiskUSB Interrupt---Enable[Probrem]If you set it to the above mode and operate it, the USB is recognized only once when you first turn on the power, and the USB Mount/Unmount function does not work at all after that.Even if you insert the USB after turning on the power, the interrupter function does not work after the first paper is recognized.It works fine on STM32F404 with the same configuration.What causes this error only on STM32G0B0?We ask for help from experts.

Hi, I am a beginner STM32 user. I am exploring the STMCube ecosystem and some simple functions my MCU can do. However, I stuck on generating PWM signal (I simply dont get any signal on the pin, tried few different pins), which based on some youtube STMCube tutorials should be really easy. My hardware and clock setups are verified earlier, so the only thing wrong or incomplete is STMCube PWM configuration:The code: #include "main.h" TIM_HandleTypeDef htim9; void SystemClock_Config(void); static void MX_GPIO_Init(void); static void MX_TIM9_Init(void); int main(void) { HAL_Init(); SystemClock_Config(); MX_GPIO_Init(); MX_TIM9_Init(); HAL_TIM_PWM_Start(&htim9, TIM_CHANNEL_2); while (1) { } } void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; __HAL_RCC_PWR_CLK_ENABLE(); __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_V

I'm having trouble uploading to or even properly recognising the STM32U585CIU6 (brand new chip from Mouser) this chip properly in the STM32CubeProgrammer 2.4.0 and hoping someone can help.I'm connecting UART via a generic FTDI, that is known to work fine connected to a STM32F411CEU6 for example.It sort of connects, see below:12:09:58 : STM32CubeProgrammer API v2.4.012:10:04 : Serial Port COM9 is successfully opened.12:10:04 : Port configuration: parity = even, baudrate = 115200, data-bit = 8, stop-bit = 1.0, flow-control = off12:10:04 : Activating device: OK12:10:04 : Chip ID: 0x482 12:10:04 : BootLoader protocol version: 3.112:10:04 : Response received from device: NACK

I want to make a structured project for stm32 with cmake where I want to make A parent folder like Stm32f4 and in that folder there will be multiple projects like blink, adc, uart and also there will be necessary header and source file(Hal) which will be shared among all the projects. Have anyone doing something like that if then It will be very helpful for me if you can share it with me. Thanks in advance 

Posted on February 23, 2014 at 13:44Hello,I want to port uClinux on my STM32F4 Discovery board.I followed this tutorial :http://www.st.com/st-web-ui/static/active/jp/resource/technical/document/application_note/CD00242717.pdfand I have successfully(I hope) installed the bootloader and the kernel into the memory.However, I'm now stuck on how to get a terminal and send Linux commands to the board. I have a USB to UART adapter and I have now idea how to do it. is it even possible? given that the tutorial is done using the STM3210E-EVAL board which has a ready USART port.any help would be appreciated

 Hello, I just bought an stm32 Nucleo-H743ZI2 and I can't upload a program with CubeIDE because it doesn't detect the stlink. Searching for solutions on Google, it seems it could be a firmware issue, and with STlink utility I get the same error, 'cannot establish a connection with the target', even after firmware update. Also, when I connect the board to the computer, a popup window appears with a text file containing an error message 'The interface firmware FAILED to reset/halt the target MCU'. What can I do in this case?

Hello everyone, can someone help me with LIS3DH Example and Library.any suggestion for library.Thank You 

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I'm trying to send ADC results over to a receiver via UART, but somewhy the program freezes on sprintf() IF I have called HAL_ADC_Start_DMA() before. If I call sprintf() before HAL_ADC_Start_DMA() it works fine. However, I need to call it after starting the DMA. How can I fix this?int main(void) { /* USER CODE BEGIN 1 */ /* USER CODE END 1 */ /* MCU Configuration--------------------------------------------------------*/ /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ HAL_Init(); /* USER CODE BEGIN Init */ /* USER CODE END Init */ /* Configure the system clock */ SystemClock_Config(); /* Configure the peripherals common clocks */ PeriphCommonClock_Config(); /* USER CODE BEGIN SysInit */ /* USER CODE END SysInit */ /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_DMA_Init(); MX_MEMORYMAP_Init(); MX_ADC1_Init(); MX_LPUART1_UART_Init(); /* USER CODE BEGIN 2 */

Hello,I have set the BR bit in CR1 to 0 with the expectation of obtaining an 8MHz clock frequency. However, I am encountering an actual frequency of approximately 1.042MHz. Does anyone have an explanation for this issue, or should I consider implementing any calibration procedure for the clock? Best regards,

Using STM32CubeIDE (v1.14.0) with STM32F042F6P7 (TSSOP 20) to configure CAN pins on custom board. However the CAN peripheral is grayed-out when I open the IOC file in STM32CubeIDE. For pin assignments, PB8 is available for CAN rx but CAN tx is not show for any other pin. How do I access alternate pins for the CAN peripheral? Reference manual says PA12 should be available as alternate for CAN tx; and PA11 should be available as alternate for CAN rx.

Hi,I wanted to send hexadecimal numbers through UART. I am using STM32F405. Can it be done.If I am sending float number as 1.3456 string (text) to windows COM port to  english language windows application field. If for example regional settings being changed on the windows to german language and return float number as 1,3456.Sending the float number as hexadecimal will that sort out the problem. Any suggestions?   

Hi, I'm using a STM32G07x1 that will need to receive firmware updates from an embedded Linux CPU. The only connection between these devices is an I2C bus so I plan to use the ROM I2C bootloader to handle updates.I am aware of AN4221 that describes how to use the I2C bootloader commands, but are there any example scripts or C/C++ programs that demonstrate programming a STM32 MCU over I2C? Thanks,Josh

Hello,I'm trying to use DMA with an Usart to receive incoming data in a circular buffer. Basically this is my code for configuration using UART5. I can send data, so i assume, that port und clock configuration is correct. When receiving data, NDTR is couting down but there is no data copied into the buffer M0AR. Uart5 uses DMA1 Stream0, Channel 4. FIFOs are not used.When i switch to polling receiving without dma, everything works. What can be the issue?  dma = DMA1_Stream0; dma->CR &= ~DMA_SxCR_EN; dma->CR |= 4 << DMA_SxCR_CHSEL_Pos; dma->PAR = (uint32_t)&oConfig.oUSART->DR; dma->M0AR = (uint32_t)&buf_rx[0]; dma->NDTR = BUFFER_SIZE; dma->CR |= DMA_SxCR_PL_1; dma->CR |= DMA_SxCR_PL_0; dma->CR |= DMA_SxCR_MINC; dma->CR |= DMA_SxCR_CIRC; dma->CR |= DMA_SxCR_EN; oConfig.oUSART->CR1 &= ~USART_CR1_UE; oConfig.oUSART->CR3 |= USART_CR3_DMA

Hello I am in the task of adding a new flash as an external flash via QSPI interface with the MCU STM32F777ZITx.The flash that I want to add is S25FL256L as an external flash. I am not finding any references which I can use with this flash. Also it is not getting clear to me whether I need to make an external loader for mapping the external flash in memory mapped mode or only configuration is needed ?

RM 0456 10.5.4 Dynamic voltage scaling management writes under "System frequency steps on STM32U59x/5Ax/5Fx/5Gx device"===On STM32U59x/5Ax/5Fx/5Gx devices only, the maximum system frequency increase ordecrease in the VOS range 1 is 80 MHz.===This is unclear to me. On first reading I thought that 80 .. 160 Mhz in range 1 is not possible! Or does this imply a special handling needed when in Range 1 and target frequency is 1..80 MHz while with target frequency 80 .. 160 Mhz the handling explained before is needed?