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I am leaning to program the H743ZI and have a simple application where the user leds blink at a certain rate given by a delay produced by a for loop.When the code is uploaded, I get the desired rate. If I disconnect and connect the board again, the program still runs, but at a slower LED blink rate. If I upload the code again, all is back to normal.

Hi,I am attempting to port the MotionFX Library example to another processor. The project I am using as a reference is the DataLogFusion project for the STM32L476RG-Nucleo in the X-CUBE-MEMS1 V6.0.1. I am trying to compile it on another ARM Cortex M4F Processor and am getting the following error:Output/Release/Exe/project.elf uses VFP register arguments, ./STM32_MotionFX_Library/Lib/MotionFX_CM4F_wc32_ot.a(motion_fx.o) does notIt seems as the MotionFX Library has been compiled using software floating points and does not utilise the FPU. Is this so it can also be used on the M4? Are there any available pre-compiled versions of the library using the FPU on the M4F?

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Hi,when porting some code that uses CubeMX LL drivers to a H7, I noticed that CubeMX doesn't allow selecting LL drivers for any peripherals, but insists on using HAL for everything.Is there a particular reason that LL drivers can't be used on the H7, or will there be LL driver support at some point in the future?Thanks, Patrick

Long ago promised; twice deferred. Please update your community on this release! Thank you!Regards,Dave

I have STM32L496QG soldered on my PCB. I can use only Boot Loader via Serial COM port. I tried to use ST's Flash Loader Demonstrator, it doesn't work. I need some Windows -based software. What can you recommend?

Hello, I'm currently looking into the ST NFC Eval boards, as I'm planning a small project involving NFC and dataloggers. For my needs the NFC04A1 should be perfect, so I am looking at the drivers and example codes given in X-CUBE_NFC4. In the nfc04a1_nfctag.c file, I noticed the NFC04A1_NFCTAG_DeInit function, a variable called NfctagInitialized is set to 0, and there is a function that checks if the tag is initialized which just returns the value of NfctagInitialized. The issue is, in the NFC04A1_NFCTAG_Init function, this variable is never changed to 1, so I fail to see that the check function will ever return anything other that "Uninitialized". Obviously I can easily edit the code so that this isn't an issue, but I wonder how much else on the examples hasn't been implemented. Ideally I want to write my code knowing the functions in the driver work, so if there are any known issues it would be very useful to know them in advance. Codeint32_t NFC04A1_NFCTAG_Init (uint32_t Instance) {

Hello,I wrote an application in which I used an STM32F446 controller(from an STM-32 nucleo board) to configure an external interrupt using a push button.This is my configuration:enabled EXTI0 line and I'm using my push button connected to PA0 to generate falling edge interruptsI have implemented the 'EXTI0_IRQHandler' function and confirmed that the code goes there and the interrupt gets processed properly. However I still have one thing about the debugger which bugs me :). I have put few two breakpoints in the endless while(1) loop to see the flow of the code like this: one on line 47(int a = 1) one on line 49(in c = 3). Then one breakpoint in the ISR to make sure the code goes there when I press the button. If I cycle through the breakpoints by 'run'(f5) then everything works fine. However if I just step through the code in the while loop(by pressing f10) and then I press the button to trigger the falling edge interrupt I would expect the code to go to line 56(beginning of the ISR).

Hello,setting up STM32L412 SPI for 16 bit Spi transfer and doing:    uint16_t *SPI_DR = (uint16_t*)&SPI1->DR;   *SPI_DR = 0;//   while (~SPI1->SR & SPI_SR_TXE) {NutSleep(0);}   *SPI_DR = 0;results in only 16 bit shifted out. With the check for TXE enabled, 32-bits are shifted out as expected. FRXTH is set to 0: RXNE event is generated if the FIFO level is greater than or equal to 1/2 (16-bit) The registers are CR1 = 0x34d, CR2 = 0xf00, SR = 0x2I did not find any restrictions in back to back write in the datasheet. PCLK is 16 MHz. But it seems the second write is ignored. I don't see an errata regarding this issue too.

I am using STM32F401RE and M24SR64-Y to read data from or write data on Mifare tags, and I have some questions, Can I use X-CUBE-NFC4 software with M24SR64-Y ? , as on your site the only compatible software is X-CUBE-NFC1.So, please can you explain to me how can I use M24SR64-Y to read data from or write data on MifareClassic (NDEF Formatable) Tag?Also how can I change st.com in the code?i changed st.com into facebook.com /* Prepare URI NDEF message content */ strcpy( URI.protocol,URI_ID_0x01_STRING ); strcpy( URI.URI_Message,"facebook.com" ); strcpy( URI.Information,"\0" );and the output doesn't change from st.com to facebook.com !! I replaced all "st" in the code with "facebook" and again the output doesn't change.Do you have any idea how is that possible to write "st.com" on the tag while there isn't any "st" in the code?!!!!

We are using your VL6180X Proximity sensor, gesture and ambient light sensing (ALS) module for a time of flight sensing application. We are experiencing a problem with unreliable measurement results from the sensor: some sensors output a low value (10 - 20 mm) with no target present, and sometimes low readings (50 - 60 mm) when a target is ~800 mm away. These problems seem consistent with cover glass selection and air gap distance. Do you have any experience with these types of problems? NOTE: This question and answer originated from a customer support case which was handled by us. We regularly review support cases and add any helpful ones here for all to benefit from.

Hi there! I am actually fighting again i2c communication on the B-L072Z-LRWAN1 evaluation board (STM32L072CZ). Basically I would like to interface a NXP MMA8652 accelerometer over the I2C bus. I was able to do that (get the "who am I" register, get x/y/z acceleration values) with an Arduino board but could not get it properly run on the ST. I can actually see the 100kHz SCL/SDA on the scope but the accelerometer only answers 0xff to all requests.I used CubeMX to set the board, (I2C base freq is 2,048MHz), and based my code on the "I2C_TwoBoards_AdvComIT" example from ST.The code is pretty simple, IT based.Init: hi2c1.Instance = I2C1; hi2c1.Init.Timing = 0x00000708; hi2c1.Init.OwnAddress1 = 0; hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; hi2c1.Init.OwnAddress2 = 0; hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK; hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; if (

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I used one CR95HF demonstration board USB on computer ,it's work well, but : CR95HF.dll library ​CR95HFDLL_USBconnect() Returned value: lngStatus: 0: is connected  and ready to be used ; 1: not connected; I don't how to deal with 2 USB CR95HF on same one computer , how to identify the USB devices index by CR95HF.dll library support ?

My board is NUCLEO-H743ZI. I change the ST-LINK type from STM32 Debug+Mass storage+VCP to STM32 Debug+VCP.But after the change STM32CubeProgrammer can not detect the ST-LINK.It might be a hardware ID issue?The usb pid of STM32 Debug+Mass storage+VCP is 374B.STM32 Debug+VCP is 3752.

i want to control AC voltage using timer PWM mode ..reference zero crossing signal interrupt every rising edge of zero crossingfrequency of pwm signal (100Hz) some time frequency of AC mains very between 99-100Hz so i need to synchronize my timer with every rising edge of zero crossing how can i synchronize TIMER?

I'm trying to understand how I can use a USB Type-C connector together with the STM32MP1 USB OTG peripheral.So obviously I want to use the port in dual role configuration. I want to use the STUSB1600 for that because it takes care of the power source/sink control for me. But I do wonder how should I connect the OTG_ID pin (if at all) in the STM32MP1, should it be to the ATTACH pin of the STUSB1600? The eval and DK only use the micro connectors for OTG.I have found AN4775 and figure 9 (attached) explains how to use Type-C with OTG, but I'm not sure if that applies with the STUSB1600 because it takes care of the CC pins for me.So if someone could please help with figuring out dual role with Type-C connector, please.

i have file.c and i want to convert file.c from html file

Hello.I need a simple example for led blinking with SPC5 Studio and SPC560 series mcu.​thanks.

我现在使用一个DEMO-CR95HF-A usb在电脑上软件是没有问题的，但用两个ＵＳＢ连接时�?知�?�如何作开�?�区分，​CR95HFDLL_USBconnect Returned value: lngStatus: 0: is connected  and ready to be used ; 1: not connected; 如果是两�?�USB读�?�器如何区别是哪�?�USB？（if two or more USB connect ,how to deal with ?） 如何�?�?两�?�USB�?�时工作？ yes , I sucessed to connect 1 USB ​CR95HF for reading card, now I want connect 2 or more CR95HF demonstration board through USB on the 1 PC ,but ​CR95HFDLL_USBconnect can't return which USB port is connect , so how to identify the USB devices index??

On the STM32L072 series, the reset state of all the pins are "Analog mode", except for PA4, PA13 (SWDIO) and PA14 (SWCLK).When I put the STM32 into STOP mode, PA4 (configured as an input) causes the current consumption to increase by ~10uA. When I configure it as analog, the current consumption goes down to an acceptable 1.7uA (with 32 kHz crystal running).I would like to know why PA4 is configured as an input after reset. One of it's alternative functions are "DAC_OUT1"... could this be the reason?Thanks in advance,Pieter

In the manual, it states that it is better to change an input pin to analog to disable the Schmidt trigger input current consumption during STOP mode. How much does this save? Should the pull-up / pull-down be disabled too?If a GPIO pin is configured as an output, will this use more current than when it is configured as analog?If a GPIO pin is configured for an Alternative Function (input), does it use more current than when it is configured as analog?If a GPIO pin is configured for an Alternative Function, but the peripheral is not initialized, does it use more current?Thanks in advance,Pieter

Hello,When generating a project for STM32F746 Disco board a QSPI.mac is generated.This file contains instruction to load into RAM __hwReset(0);    __message "---- setup device ----" ; Reg = __readMemory32(0x40023838, "Memory"); // RCC.AHB3ENR enable QSPI Reg |= (0x02UL); __writeMemory32(Reg, 0x40023838, "Memory");....How is it generated ?How can we modify it as we uses different QUAD SPI on our target ?thanks for any supportbest regards

Hi, eMIOS unified channels have ODIS and ODISSL configuration. ODIS selects one of the four output disable input signals, as follows:00 = Output Disable Input 001 = Output Disable Input 110 = Output Disable Input 211 = Output Disable Input 3I have Discovery Kit for SPC56 with SPC560B54L5 MCU. Reference manual doesnt contain description of Output Disable input signals. How can i configure this signals?Best regards,Alex.

Hello. Which compilers I can use to write some program codes for the SPC560B50L5. ?I think the SPC5Studio only supports b54, b60 and b64 series. ​also has a sophisticated design.Is there any other easy to use compiler that supports this MCU?Thanks.​