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HiI got an STM32MP157C-DK2 during the Embedded World.But Windows7 isn't detecting the DFU ... It detects only the STLink (UART) ....Same issue in a Ubuntu-16 (which is running in VirtualBox on the same Windows 7)Any suggestion?Regards Francesco

I want to tune the Cin, Clen and Cout variable caps on the ST25RU3993 Eval kit. I have modified the Evaluation kit to use a different micro controller, however im using the same source code with very minor modification (to suit the pins that I am using on my micro). When I set capacitor values I then call the GetReflectedPower function which in turn calls the GetADC. However my ADC seems to always return 0. Am I missing something with the hardware set up? I have attached a code sample for clarity.

I have checked and re-checked this. Also used another USB to I2C converter and can read the registers just fine. Put an I2C analyzer on the setup and I see no activity when the GUI program starts.Today on Github I found a HwCheckUtility.exe file. It launches, finds the com port and then indicates it found the I2C device at 0x28 address. I also see the scan on the logic analyzer. I am now at a loss as to what do next.GUI version is 1.06S. Thanks

HelloI have TIM3 set up like so:ABP1 Timer clock = 84 MHzPrescaler = 8399Period 9999Update event selected as triggerNVIC enabled for TIM3 global interruptThis gives me a timer interrupt every 1 second. But it appears as though the callback HAL_TIM_PeriodElapsedCallback is called immediately after I call HAL_TIM_Base_Start_IT(&htim3) and then in intervals of 1 second thereafter.Why does the period elapse immediately after starting the timer? Is there a way to get around this?

Not sure if I messed something up. Signal is okay (on the pin). No differences with layout compared to other inputs. ADC is at full speed (16 MHz).On image it is sensor 22 (reads ~2500). Sensor 23, 24, 25 all read normal values (~3000).Voltages on all those pins is ~2.8V.VREF, VDDA, VDD = 3.3V.

Hello,Where can i find example for STM32F7 of external IRQ programmation ?(how to tell system which pin to use for EXTI_Line, add IRQ vector to NVIC...)thank for any supportbest regards

Posted on February 12, 2016 at 09:33Hi everybody,does anybody know if SPC MCUs libraries are available for Altium Designer?Where could I find them?Thank you,Cel #spc #altium-designer #library

I do not quite understand paragraph 29.3 "Modes of operation" of RM0045 Reference Manual for SPC 56D Line MCUs. It says:Can my firmware change the protection dynamically, i.e. protect resp. unprotect registers?Is there any register that can get the source of reset?                                                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.

Has anybody implemented a small compiler that runs on an STM32 M3 or M7 to produce code for itself. Must be a compiler, not interpreter, as runtime speed is paramount. Doesn't need to be a complete C++ instruction set, a mini-C or something like that would be fine.

I see reference to the jumper between D2 and GND, but I don't see any explanation regarding it's use and when it should be on or when it should be off. I'd like an explanation of this jumper please.

Hi, I´m doing a project in which I have to programm an android app which shall write and read the mailbox. Using the ST25DV Demo app I figured out, how to read and write the Mailbox. A nice feature of the app should be, that I can read the tag and choos between various apps which can handle the technology.What I want is: I read the Tag, then there is a android dialoge which shows my app that I can choose to open. My Android-Manifest contains following code:<intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /></intent-filter><intent-filter> <action android:name="android.nfc.action.TECH_DISCOVERED" /> <category android:name="android.intent.category.DEFAULT"/> <data android:mimeType="text/plain" /></intent-filter><intent-filter> <action android:name="android.nfc.action.NDEF_DISCOVERED" /> <category android:name="android.intent.category.DEFAULT"/&

Hello,When using external NOR is it reasonable to configure its memory addresses as cacheable or should it always be configured as NON-cacheable?If it is cacheable it means that when executing a programming nor command, it is not yet written into device.Only if PROGRAM_TIMEOUT is large enough then validation works (write, read and compare) HAL_NOR_Program(&norHandle, (uint32_t *)(NOR_DEVICE_ADDR + uwStartAddress), pData);   if(HAL_NOR_GetStatus(&norHandle, NOR_DEVICE_ADDR, PROGRAM_TIMEOUT) != HAL_NOR_STATUS_SUCCESS) ....Why a large timeout result in validation suceess ? Does it mean that only after this timeout the data was actually writted into device (in cacheable mapping scenario) ? I've configured NOR address in MPU as non cacheable and thing behave better: the timeout can be lowered to 0 , and there is also the certainty that each NOR programming reaches NOR device. Shouldn't it be always configured as non cahceable also in examples ?Thank you for any comment,ranra

I am using IPS160H switch as a power switch input to DC/DC converters. But now I am confused to see a discrepancy between the data sheet and the STEVAL-IFP028V1 evaluation board schematics how to power the chip (Vcc). a) In IPS160H datasheet it says that pins 1 and 12 should be connected to Vcc: b) But in schematic diagram of STEVAL-IFP028V1 Evaluation Board (AN4781) pins 1 and 12 not connected: So my question is: Which of above pin connection diagram is correct?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.

In USART2 interrupt service routine ISR is read                isrval = USART2->ISR​;Stopping at breakpoint just before this statement, Keil debugger shows ISR value 0x000000F8.Stepping one step (to read this ISR), value in  ISR changes to 0x000000D8.But, what ist this: 'isrval' is also 0x000000D8!!!.This means RXNE flag is lost(!), in ISR AND in isrval and cannot further be evaluated.Any suggestions

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Hi guys, I have a STM32L4R9I-DISCO board. I create a touchgfx project from Application Template for this disco board. After that I can run simulator, generate code and run target without problem. I can see my application in disco board's LCD. I will use Keil for code development. I see in the webinar videos there should be a Keil folder in the Target folder . But in my situtation there are "bsp" + "gcc" + "IAR" + "IAR8.x" + "os" + "main.cpp". Why Keil folder can not be created?

Hi,I'm using STM32L072 Discovery Board and generated UART code using CubeMx, I'm able to transmit the data via UART but not able to receive the data. Please help me in this regard.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();   /* USER CODE BEGIN SysInit */   /* USER CODE END SysInit */   /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_USART2_UART_Init(); /* USER CODE BEGIN 2 */   /* USER CODE END 2 */   /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { /* USER CODE END WHILE */ HAL_UART_Receive(&huart2,buffer,4,5000); HAL_UART_Transmit(&huart2,buffer,4,100); /* USER CODE

Hi, I'm having a hard time understanding the HAL_PCDEx_SetTxFiFo() function that I should call inside the USBD_LL_Init() function for my Stm32L476. I have attach my descriptor results from USBTreeView. But here the highlight:My composite device have multiple interface: 1 HID interface1 interrupt IN EP 0x831 interface for application 1 Bulk IN EP 0x841 Bulk OUT EP 0x04 1 interrupt IN EP 0x851 ISO IN EP 0x86IAD Link both CDC interfaces1 CDC Control interface1 Interrupt IN EP 0x821 CDC Data interface1 Bulk IN EP 0x811 Bulk OUT EP 0x01I did keep the IAD and CDC as the last into the descriptor since it seem to confuse some COM driver. But I still have a hard time with my endpoints and the call to init the TX buffer, I'm not sure I do the right thing.Does HAL_PCDEx_SetTxFiFo() use for the fifo 2nd argument :the endpoint id without the direction (& ~0x80)?the order they appear into descriptor and interface number?What is it represent exactly? Can I skip some? How much can be used, is 6 to

Hello,I tried to access external nor flash in stm32h743 eval board.After configuring it I can view the memory in debugger (IAR).But it fails when trying to access it from debugger memory view (0x60000000) - after erasing the sector.I see that the HAL API for accessing the NOR flash HAL_NOR_Program is setting the address in HAL driver: /* Send program data command */ NOR_WRITE(NOR_ADDR_SHIFT(deviceaddress, uwNORMemoryDataWidth, NOR_CMD_ADDRESS_FIRST), NOR_CMD_DATA_FIRST); NOR_WRITE(NOR_ADDR_SHIFT(deviceaddress, uwNORMemoryDataWidth, NOR_CMD_ADDRESS_SECOND), NOR_CMD_DATA_SECOND); NOR_WRITE(NOR_ADDR_SHIFT(deviceaddress, uwNORMemoryDataWidth, NOR_CMD_ADDRESS_THIRD), NOR_CMD_DATA_PROGRAM);Probably these address setting can explains why trying to access it like a regular memory in write - does not work.Is it correct that flash NOR is not memory mapped in write ?Thanks

STM32F405:

After upgrading STM3CubeMX to ​Version 5.1.0, I started to encounter the Code Generation problem. Even after upgrading Keil uVision to Version V5.26.2.0., the problem is still persist.

how to flash bootloader code in to stm32f4 series

Posted on February 10, 2015 at 15:24The title really says it all. The pin description for the LSM9DS1 says that the DEN_A/G pin is the Accelerometer/Gyroscope Data Enable. This sounds important, but I can't see anywhere in the datasheet that explains what you're meant to do with it. Can I just tie it to 3.3V, since I want data to always be enabled? Or tie it to ground? Or maybe to the CS_A/G pin, so that it only takes readings when I'm not actually communicating with it? The only thing I can't do is connect it to a microcontroller pin, because I've run out of those. Thanks for any help #data-enable #lsm9ds1 #den_a/g

hi i'm reviewing rm0008 ref manual for stm32f103 the adc.accordingly, adc clock max is 14mhz and it takes 14 adc clock cycles for 1 conversion - hence 1msps per ADC.however, from the RCC section the available prescalers are 2, 4, 6, 8and if we take 72mhz / 6 that gives 12 mhzand if we assume it still takes 14 adc clock cycles per conversion, that gives 1m x 12 / 14 ~ 857ksps per adc?does it still takes 14 adc clock cycles per conversion if the adc clock runs at 12mhz?in addition, it seemed there isn't really a feasible way to achieve 14mhz on the adc clock ?thanks

i have making a project which i can simulate the project but i can't run the same on my target.