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I have a problem with operating the traffic light from the class method - every time the program crashes at that point.Here is a simplified example for understanding what I'm writing about:Class:class IO_control { int num;   public: osSemaphoreId semaphoreHandle; int *outputs; IO_control(int num,int outputs,osSemaphoreId semaphoreHandle); virtual ~IO_control();   void SetOutputs(); void UnsetOutputs(); };     /***********************************************/     IO_control::IO_control(int num, int *outputs,osSemaphoreId semaphoreHandle) { this->num = num; this->outputs = outputs; this->semaphoreHandle = semaphoreHandle; }   IO_control::~IO_control(){}   void IO_control::SetOutputs() { osSemaphoreWait(semaphoreHandle, osWaitForever); *outputs |= num; osSemaphoreRelease(semaphoreHandle); }   void IO_control::UnsetOutputs() { osSemaphoreWait(semaphoreHandle, osWaitForever); *outputs &= ~(num); osSemaphoreRelease(sem

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Hello,I have a board that use STM32F072C8T6TR reference. After severel weeks of normal use, the STM32 on some boards are not responding anymore. I tried to access the STM32 with STlink Probe, ore by using internal Bootlaoder, without success. After investigations, I can see that the NRST pin (which is internally pulled up, and not connected to any other component on my board) never goes high, and thus I suspect that the MCU is dead. The STM32 only use some GPIOs for SPI communication with components that share the same VDD Power supply.The only idea I have, is that the VDDDIO2 that power the USB PHY and some GPIOs is only powered when a USB cable is connected to my board. I understood in the datasheet that the VDD and VDDIO2 domais are completly independant, and thus the VDDIO2 can be shut off even if the STM32 is running. Is it correct ? If not, could it explain the behaviour I have ?Thanks,

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Hello,​All I / Os are CMOS and TTL compliant (no software configuration required).For example, as shown in the attached document, the VOH in Table 57 has a different Min value depending on whether it is a CMOS port(a side) or a TTL port(b side).When and which one should I choose?​Goto​

I am newbie getting lost in the HAL functions/features to use. I use STM32CubeMx to generate the code and use Keil uvision5 for development. I use STM32G071 Nucleo-64 development kit.  I wish to measure a ‘start’ pulse of a proprietary protocol. The pulse, if low for 55 microseconds is considered start pulse.A port pin has been configured as input. Idea is to poll the line and when a low level is detected, measure the time for how long pulse remains low.I have used timer 3 with no prescalar, in up counting mode. The ARR count is 3520@64MHz. So far, I have not used any interrupt.After a low level is detected, the timer is started byHAL_TIM_Base_Start(&htim3);As a next step, I wish to poll the UIF flag to check whether the time has elapsed.I do not know which HAL function or what should I use to check the status of the flag.Once detected I will need to clear it as well

abbreviations are extremely poorly described throughout the documentation. you have to turn on the fortune-teller mode to understand what is happening. in particular, the UG bit has not been "reliably" deciphered. all documentation is "raw" and made for formality, obviously not for ease of use.

Hi, I am trying to communicate on CAN BUS, I have previously succeeded in doing so with STM32F103C8 and STM32F091RC, but I cant make it work on STM32F407VET It does not trigger its interrupt on message receive. What could be the difference on this MCU? Do I need to enable something different?MCU clock 168Mhz, APB1 42Mhz, CAN BUS speed is 100000bit/s, enabled "CAN1 RX0 interrupts" in NVIC, code:hcan1.Instance = CAN1; hcan1.Init.Prescaler = 28; hcan1.Init.Mode = CAN_MODE_NORMAL; hcan1.Init.SyncJumpWidth = CAN_SJW_1TQ; hcan1.Init.TimeSeg1 = CAN_BS1_12TQ; hcan1.Init.TimeSeg2 = CAN_BS2_2TQ; hcan1.Init.TimeTriggeredMode = DISABLE; hcan1.Init.AutoBusOff = ENABLE; hcan1.Init.AutoWakeUp = DISABLE; hcan1.Init.AutoRetransmission = DISABLE; hcan1.Init.ReceiveFifoLocked = DISABLE; hcan1.Init.TransmitFifoPriority = DISABLE; if (HAL_CAN_Init(&hcan1) != HAL_OK) { Error_Handler(); }   CAN_FilterTypeDef sFilterConfig; sFilterConfig.FilterBank = 0; sFilterConfig.FilterMode = CAN_FILTERMODE_IDMA

I am trying to configure the ADC of STM32L476RGTx to scan three channels, but STM32CubeMX only shows Disabled as an option to select for Scan Conversion Mode. I have also tried this with STM32L471VETx and the same problem exists.Am I missing a prerequisite setting that needs to be enabled before Scan Conversion Mode can be enabled, or is this a problem with the device definition?

Hi,have a question, i don't understand the difference in holding register from low register (address 0) and high register(address 1). I used QmodBus 0.2.1 and if i set degree in low register i have no problem.. But in a High register if set a value >0 the motor start with casual rpm..Second question, i want generate the FW binary.. i Used MCworkbench and set in speed mode. Push on Generate but i have no binary but only the project. Can you help me pls?Thx

As we are using CAN 2.0 A (11 bit ID STANDARD FORMAT) in STM32L431RBTx MCU & it is working fine. Now we want to go for the CAN open protocol. Is there any sample code or document available or any algorithm to initiate CAN open code development for STM32L431RBTx MCU.

For PWM channels to be disabled during a trip instant we use the break input circuit and the function worked well in the Nucleo board. But while using the same in the real circuit having half-bridge, cross conduction occurs every time the break input gets active.we observed that the complementary waveform degrades to zero instead of immediately being pulled down to zeroIs there any option to use the break as an interrupt?Is there any other option to force the output and its complementary channel to zero while using the break functionality?

I have an intermittent issue with a USB composite device on STM32F745 where an endpoint is failing to send data back to the PC and then the PC resets the connection.I've applied the interrupt disabling from https://community.st.com/s/question/0D50X00009XkhXw/usb-cdc-device-receive-fails-on-transmit and that did improve things somewhat, however it isn't fixed.My code is derived from ST's example codes.In normal operation, the MSC is queried by the PC periodically with a "Test Unit Ready" command. The CDC is in full flow at about 150 useful data packets per second.After a random time period (between a few minutes and multiple hours) the USB send function is unable to add data to the IN FIFO.This line fails:  if ( ((USBx_INEP(ep)->DIEPCTL & USB_OTG_DIEPCTL_EPENA) == 0)        && ((USBx_INEP(ep)->DTXFSTS & USB_OTG_DTXFSTS_INEPTFSAV) >= len32b) ) {because EPENA is set.My code was previously just ignoring this an

I'm running into the Cortex M7 r0p0, r0p1 bug where single-stepping is impossible due to the processor handling an interrupt instead.i.e.http://www.keil.com/support/docs/3778.htmI'm using OpenOCD and it is reporting:Warn : Silicon bug: single stepping will enter pending exception handler!As per title, this is with an STM32F746Z on a Nucleo 144 which has the bug. STM32F769N worked as expected.Are there any plans from ST to release a fixed ARM core in the 746 or 745?regardsJames

I'm trying to understand the span of accuracy I can achieve in terms of movement detection, in different Lis2dw12 setups.From my understanding, the LIS samples the axis acceleration values once every ODR (so if ODR corresponds to 1.6HZ, once every ~0.6 seconds. If ODR corresponds to 12.5Hz, once every 0.08 seconds etc), and if the threshold is exceeded for a set duration, the interrupt is asserted. We set the wake_up_dur to 0x00, so that should mean- wake up on a single sample over the threshold.How much time can I expect between the movement starting (assuming its starting past the movement threshold) and when a logical '1' can be measured on the interrupt lines?Thanks!

We are sorry to announce that the refresh data feature is temporarily unavailable for STM32CubeMX, STM32CubeIDE and STMCUFinder. We are working on a solution for this issue. Please note that the FW download stay available. RegardsNawres

Hello,I'm designing backup MPPTs for solar racing that's economical, and I was able to get my hands on some SPV1020 ICs, and at certain points of the AN3392 datasheet, I was having troubles figuring out certain values.For 13.5, what capacitor is cin, would it be capacitor c11 or c5, and if cin is c5, how would we go about deciding a value for c11?For 13.6, the calculated Tin=c6*r1//r2 is not approximately close to Tin=10*1/Fssw when we're using the default FSW.I used the component values in the BOM and they're still not approximately close to each other, so what are these two formulas referring to?On the PCB diagram on the AN3392 datasheet there's a diode D5 and there's no mention on the spv1020 datasheet or the demo board datasheet anywhere. What diode would be recommended?

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I followed this[1] URL to update FUS and wireless stack, it failed and now i can't get wireless to work. All the examples are hard faulting. My FUS is still in version 0.5.3Reading 32-bit memory content Size : 4 Bytes Address: : 0x20030030 0x20030030 : 00050300But i can't upgrade to the latest one.USB speed : Full Speed (12MBit/s) Manuf. ID : STMicroelectronics Product ID : DFU in FS Mode SN : 206F3169554D FW version : 0x011a Device ID : 0x0495 Device name : STM32WBxx Flash size : 1 MBytes Device type : MCU Device CPU : Cortex-M4 Current FUS Version : 0x00050300==================] 100% Uploaded FUS Version : 0x01000200 FUS state is FUS_IDLE FUS status is FUS_NO_ERROR Old wireless stack delete ... Deleting firmware ... Firmware delete finished FUS state is FUS_SERVICE_ONGOING FUS status is FUS_IMAGE_NOT_FOUND FUS state is FUS_IDLE FUS status is FUS_NO_ERROR Download firmware image at address 0x80ec000 ... Memory Programming ... Opening and parsing file: st

Hi,In my experiment based on the STM32F091, a crystal connects between PF0-OSC_IN and PF1-OSC_OUT pins. When the two pins short which may lead the MCU stop working.Please let me know how to address the issue.Best regards,Elvis

�?�以直接将STM32F429的DMA例程直接下载到STM32F407中使用�?？我这边直接下了进去，�?试了一下，�?�现串�?�没数�?�。​应该是�?对STM32F429的例程修改�?STM32F407版本的例程？如果是�?修改的�?，具体应该修改哪些地方呢？​�?次接触，特�?�请教​感谢�?

Using stm32flash -a0x51 -w binary.bin -S 0x3000 /dev/i2c-4but get backFailed to write memory at address 0x00003000For 0x8003000 I getErasing memoryPage-by-page erase error.Failed to erase memoryAny solution...can move offset i.e. bootloader offset. I don't believe sector are issue?

I start from any simple Cube example, such as UART_Printf,enable access to the backup RAM and write some data.After reset by the reset button or NVIC_System_Reset data in the backup RAM is retained.But after powering off the data is lost.Do I miss some configuration steps to make the backup domain use the battery? Any jumper?The battery ML1220 voltage is 2.75V when the board is disconnected from power.Is this too low voltage? Googling shows that minimal voltage can be as low as 2.5V.Apologize for a silly question but I cannot find solution in the board manual.-- pa

 Please, Help me.Attach log:PS C:\> STM32_Programmer_CLI.exe -c port=usb1 -fwdelete     -------------------------------------------------------------------                      STM32CubeProgrammer v2.6.0     -------------------------------------------------------------------USB speed  : Full Speed (12MBit/s)Manuf. ID  : STMicroelectronicsProduct ID : DFU in FS ModeSN         : 20583172544EFW version : 0x011aDevice ID  : 0x0495Device name : STM32WBxxFlash size : 1 MBytesDevice type : MCUDevice CPU : Cortex-M4FUS state is FUS_ERRORFUS status is FUS_NOT_RUNNINGFUS state is FUS_IDLEFUS status is FUS_NO_ERRORDeleting firmware ...Firmware delete finished

Hello,I'm booked in / confirmed for the STM32WL workshop on the 19th of March. Could anyone provide me with information about when the hardware pack (P-Nucleo-LRWAN2 and NUCLEO-WL55JC) is likely to be delivered? Should I expect to get an email confirming that is is on the way, or a parcel tracking number?Thanks,Chris