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I am using STM32F103C8T6.

For example, there are 3 timers (Timer 1, 2, 3).I want to set like below: Timer 1 : MasterTimer 2 : Slave of Timer1Timer 3 : Slave of Timer2When I checked the waveform after setting similarly to the above, it seemed that timer2 could not trigger timer3 properly.So, I wonder if it is possible to trigger serially using timers.​​​

Hi,I use STM32L496RGT6 with own bootloader. If I start IWDG in bootloader and periodically reset it it is work good. If I jump to application and call HAL_IWDG_Refresh(..), function doesn't refresh IWDG and IWDG reset mcu. I tried call MX_IWDG_Init() after HAL_IWDG_Refresh.. or only HAL_IWDG_Refresh but doesn't have effect. Please help how to resolve this problem. I would like start IWDG in bootloader end periodically refresh it, after jumping into application fw continue refreshing IWDG counter if it is possible.Thank you,best regards

This is 3 year old question coming back again in a hope that the way was found or newly implemented to turn any STM32 example project into the configurable one to use the advantage of STM32CubeMX tool. Again, as in the past, I don't see project configuration files in all the examples I looked into and once I imported the example project, the STM32CubeIDE does not even have means to launch CubeMX ... this icon only appears when a new project created using CubeMX...Please anybody who knows any way to make the provided examples into the CubeMX configurable project without a thousand of clicks to manually match the newly create project with a working example, please let people know .Thanks in advanceVlad

This is a spiritual followup to this post: https://community.st.com/s/question/0D50X00009XkYuH/rtc-daylight-saving-time-stm32f3-discoverySo I do get which functions to use for daylight saving, and how to BCK bit remembers if I already changed to DST or not.But:Since I have to call either function manually, how do I compute "second Sunday in March" or "last Sunday in March"? If I check the date every (running) minute, how can I count Sundays (in particular if the board was powered off during the first Sunday)? Do I need to revert to time() etc.?Wouldn't frequent checks drain performance? Is there no better way, e.g., by using callbacks? Should I set alerts for the DST dates?If the BCK bit has to be set again after each boot, how do I know if it should be set of not? By comparing the current date against the DST dates? But then I could power down the board just before DST start, and power on again after it. Then the BCK bit would be set, but the time would not have been adjusted, which i

Hello,our company is currently using a Spansion/Cypress FM4 MCU to control 3 3-phase BLDC motors with TLE7185-1E drivers. However, after the Infineon acquisition, it seems that the product family is slowly getting phased out over the next years and it is not recommended to use it for any new product.Therefore we are looking for an alternative and we really like the capabilities of the STM32F7 family, but all of them max out at 2 specialized motor control PWM modules. We would very much like to use a single chip solution to reduce the complexity of the PCB and software as well as allow easy OTA firmware updates. That is why we were wondering if there are other product families/products with a similar feature set but with at least three motor control PWM modules instead.

Hello to everyone. I am working on the stm32f429 board. I set up the RTC for every second. In RTC interrupt, I am trying to assign the hour minute second information to the variable and display it on the screen. There is also one more interrupt that I use to extract the data I get from the sensor. When there is information from the sensor, it enters this external interrupt. And when it enters this hack, the RTC breaks down. Never again goes into RTC interrupt. I could not figure out what could be the reason for this. Thank you from now.

Hi allFirst of all I'm working with STM32F469I-DISCO board and I'm using TouchGFX Designer- 4.15.0.I have the next problemMy application have 4 different screens, I'm storing in the model general information, and I can access to it without any problem in three of this screen but in one of them I can't.I've been using the same code and even trying to access at the same data stored in the model but has been impossible.In this screen the program crash but not in the view but in the presenter, the next is the sequence of my problem:First step:Here as you can see below, I'm in a view trying to get _ptr_system from model, so I call to presenter->getsystem();ScreenSetSubsystemView::ScreenSetSubsystemView() :scrollListSubsystemSelectedCallback(this, &ScreenSetSubsystemView::scrollListSubsystemSelectedHandler),_ptr_system (0) {    touchgfx_printf("\n\nEntrando: Constructor clase ScreenSetSubsystemView\n");    touc

Hello,I'm a beginner in FreRTOSS but I've already made basics codes and tutorials. Actually, I'm trying to do two different tasks. The first one is an ADC acquisition and the second one is a printf of the ADC value.But my issue is that the ADC function run only one time. So me thinks I need to make an interruption in the infinite loop, but I don't know how doing that.Can you help me?Thank you in advanceRespectfullyBastien

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Hello,As described in the reference manual of STM32F746, it was found that bidirectional communication using one data line (SDA signal) in the figure can be realized by performing half-duplex communication using the SPI function.​Please tell me the specific control method.Is it possible to switch to reception by setting the BDIOE bit of SPIx_CR1 registers to 0: Output disabled (receive-only mode)?​For exsample1, if the sequence is as follows, does the clock signal automatically become High after the processing of 1 is completed?After that, in the process of 2, does STM32 immediately start transmitting the clock and receive the data?​sequence1. 9-bit transmission completed2. Set BDIOE bit to 03. Receive 8-bit​For exsample2, can STM32 receive data in the following sequence?In that case, is it possible to prevent STM32 from receiving the data for one bit of the dummy clock cycle?Or is it better to send 10 bits in process 1?​sequence1. 9-bit transmission completed2. Set BDIOE bit to 03. Re

Hardware:BORAD：X-NUMCLEO_NFC06A1MCU：​STM32F103ZET6​At present, I can read MIFARE​ card's UID by transplanting the official software on my own MCU ,but i can not countinue to read its data ,so help me, please.

I want to use i2c-2 and i2c-6 from the user space to access different external devices. With 'i2cdetect -l' I can see the interfaces, But executing 'i2cdetect 3' sais 'Bus busy'.Used HW: Phytec Sabre Board (phyBOARD-Sargas)Linux: Yocto-OpenSTLinux PD20.2.0Executed command that results in error:root@phycore-stm32mp1-3:~# i2cdetect -l i2c-3 i2c STM32F7 I2C(0x5c009000) I2C adapter i2c-1 i2c STM32F7 I2C(0x40013000) I2C adapter i2c-2 i2c STM32F7 I2C(0x5c002000) I2C adapter i2c-0 i2c STM32F7 I2C(0x40012000) I2C adapter   root@phycore-stm32mp1-3:~# i2cdetect 3 WARNING! This program can confuse your I2C bus, cause data loss and worse! I will probe file /dev/i2c-3. I will probe address range 0x03-0x77. Continue? [Y/n] 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- [ 217.031102] stm32f7-i2c 5c009000.i2c: bus busy [ 217.034098] stm32f7-i2c 5c009000.i2c: Trying to recover busFor /dev/i2c-0 and /dev/i2c-2 the command i2cdetect works as expected. But not for the newly added /dev/i2c-1 and /dev/i2c-3.R

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IAR version is 9.10.1, the lib version is 1.5.0 for F0 device. The IAR expose a lot of faults about "core_cm0.h". I do not change anything, just open the project file under "EWARM", then compile.

Here is my source code: void CLOCK(void){ RCC_DeInit(); RCC_LSICmd(ENABLE); RCC_HSEConfig(RCC_HSE_ON); while(RCC_WaitForHSEStartUp()==ERROR); FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); FLASH_SetLatency(FLASH_Latency_2); RCC_PLL2Cmd(DISABLE);   RCC_PLLCmd(DISABLE); RCC_PREDIV1Config(RCC_PREDIV1_Source_HSE,RCC_PREDIV1_Div1); RCC_PLLConfig(RCC_PLLSource_PREDIV1,RCC_PLLMul_8); RCC_PLLCmd(ENABLE); while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY)!=SET); RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);   RCC_HCLKConfig(RCC_SYSCLK_Div1); RCC_PCLK1Config(RCC_HCLK_Div2); RCC_PCLK2Config(RCC_HCLK_Div1); while (RCC_GetSYSCLKSource() != 0x08){}   }   int main(){ unsigned long int counter; CLOCK(); GPIOS();   IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable); IWDG_SetPrescaler(IWDG_Prescaler_32); IWDG_SetReload(500); IWDG_Enable();   while(1) { counter=counter+1; Print(counter); if(counter>6553500){counter=0;} IWDG_Rel

Hello,I am building and electric field sensor. The driver signal for it is produced via DAC of the STM32F767zi microcontroller. The signal is 4 kHz and is generated at a sampling speed of 80 kHz via DMA and TIM6. As you can see from the picture the signal has errors in it like every 10-20 wavelengths there is 1 corrupted sample.Best regards

Hello!I have STM32H743BI configure TIM4 to PWM GEnerationstatic void MX_TIM4_Init(void) {   /* USER CODE BEGIN TIM4_Init 0 */   /* USER CODE END TIM4_Init 0 */   TIM_MasterConfigTypeDef sMasterConfig = {0}; TIM_OC_InitTypeDef sConfigOC = {0};   /* USER CODE BEGIN TIM4_Init 1 */   /* USER CODE END TIM4_Init 1 */ htim4.Instance = TIM4; htim4.Init.Prescaler = 0; htim4.Init.CounterMode = TIM_COUNTERMODE_UP; htim4.Init.Period = 65535; htim4.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; htim4.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE; if (HAL_TIM_PWM_Init(&htim4) != HAL_OK) { Error_Handler(); } sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; if (HAL_TIMEx_MasterConfigSynchronization(&htim4, &sMasterConfig) != HAL_OK) { Error_Handler(); } sConfigOC.OCMode = TIM_OCMODE_PWM1; sConfigOC.Pulse = 0xFFFF; sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH; sConfigOC.O

I've searched in all the obvious places but can't find any directive to tell the compiler to place some large arrays I have in the SRAM1, SRAM2 and SRAM3 memory segments. As these are not contiguous with the AXI memory I would assume I need to place arrays there manually.Any hints most welcome.

I want to set a RTC alarm to trigger 1 hour from now but there doesn't seem to be a built-in function (using HAL) to add time. Of course 1 hour in the future is easy unless it happens to be almost midnight or worse almost midnight at the end of the month.Hopefully I have overlooked a simple way to do this(this is on a STM32L0)

I want demo code for STM32F746 Discovery kit as per follow.1) using lwip for TCP Server / Client.2) Not using RTOS.Demo code available for STM32F756-EVAL at Projects\STM32756G_EVAL\Applications\LwIP\LwIP_TCP_Echo_Client.This demo code is perfect but i don't have this board, I have STM32F746 Discovery board.Both have different PHY IC. And one with MII and another is on RMII.So is there any example / demo code for STM32F746G-DISCOVERY for TCP server/client without RTOS..?

Hello. I have been messing around with the STMF407VG for a few weeks now using a discovery board. Been the steep learning curve but I think I have made significant progress on learning firmware development on it. I have gotten my code to be to a point where I wanted to have a custom PCB solution. I went ahead and looked at a few implementations of other STM32 dev boards and used that to help understand how to connect everything up.I finally got my boards in the mail. Power seems to be okay to the target, I measured the power rails for all of the pins and looks okay. Both boot pins are grounded, and the reset line is held high. Though when I try to upload a blank project to my custom PCB, I get the error that there is "No device found on target". Only thing I can think of is that I must have miswired the port that connects to the ST LINK V2 I purchased. I never made a custom PCB with an ARM MCU before so this is my first go at it. I have attached a picture of the MCU section of the sche

Hi,i am new with node-red functionality and i want to decrease the digits in a Gauge.When i start the Dashboard i get the temperature in e.g. 21.77615442345 degrees. And i want to show it with 2 digits e.g. 21.78 degrees.Ho can i do this?

Hi everyone, I'm writing a program for a STM8L152R8 that sends data over UART to another mcu that should respond to me though I have a timeout on the transaction of five seconds using timer 4. I'd also like to include a watchdog however the max timeout we can get with IDWG is 1.7s. What would be the best approach here to ensure the watchdog doesnt reset the system while waiting for a UART response?It's a similar question to https://community.st.com/s/question/0D50X00009Xka0TSAR/watchdog-timer-problem however I feel the last question in this thread is very important and unanswered though.Thanks for the help.

Hi,I would like to ask whether it is possible to put multiple models into an MCU using x-cube ai. The first model would generate one output which will be one of the inputs for another model with 13 inputs and 3 outputs.If you could provide steps as to how to achieve this, it would also be very helpful.Kind regards,Jona