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I have the FS bits set for +/-100g scale.The accel data is a 12-bit signed value, meaning each bit represents 0.049g.The threshold registers however is only a 7-bit value. From what I understand, this is to be an unsigned magnitude level, representing 0 to full scale. So, each bit represents 0.781g?My issue is that when I get interrupts and read the data, sometimes the levels are below the threshold. For example:Threshold register set to 3 = 3*0.781 = 2.344gAn interrupt occurs and the maximum accel (on any 1 axis) register value is 37. Which is 37*0.049 = 1.813g?Just hoping for some confirmation that I'm understand these values correctly.Thank you for any input.

Hello,I am using a F413ZHTx Controller on a custom board. I am logging data onto the SD card using SDIO interface. Since I am logging a lot of data, I created a code to:1) Open the file on the SD card2) Log 100 entries3) Close the SD card file4) Reopen the file.5) Using f_lseek move to the last location and try appending data. However, this is still resulting in data being overwritten every 100 entries instead on appending. Here is my source code: FRESULT fr; uint testbyte;   if(f_mount(&myFATFS, "0:" , 1) == FR_OK) { // open_append(&myFILE0, "log.csv"); f_open(&myFILE0, "log.csv", FA_WRITE | FA_OPEN_APPEND); }   count = preload_count; HAL_CAN_ActivateNotification(&hcan1, CAN_IT_RX_FIFO0_MSG_PENDING); HAL_CAN_Start(&hcan1); CAN_Filter_IDList(ID_00, ID_01, 0, 0, ENABLE); // CAN_Filter_IDList(ID_02, ID_03, 0, 0, ENABLE); // CAN_Filter_IDList(ID_04, ID_05, 0, 0, ENABLE); // CAN_Filter_IDList(ID_06, ID_07, 0, 0, ENABLE); // CAN_Filter_IDList(ID_08,

For example, to have the first few bytes of a single SPI transaction come from / go to a particular location, with subsequent bytes coming from / going to another location.

Hi... I'm trying to update the contents of a textArea from a freeRTOS task but I have a problem on the second iteration... it seems that the new text is written on top of the old ones... even if I call the Invalidate() methods as reported below:void Screen1View::setMessage(char* message, int msglen){textArea1.invalidate();Unicode::strncpy(textArea1Buffer, message, msglen);textArea1.setWildcard(textArea1Buffer);textArea1.resizeToCurrentText();textArea1.invalidate();}why is this happening ? shouldnt invalidate() do all the magics ? thanks a lot, Giampaolo

I have to design an NFC Antenna that has to stay on PCB whic shape is a circular sector.I'm thinking to design an antenna that follows the profile of the PCB.Is that a good idea? Do you have any other suggestions?Thanks

Hello,Currently i am using NUCLEO-F767ZI  as a development board for my application. As part of project requirement i have to explore NFC. I have gone through the specifications of X-NUCLEO-NFC01A1. This board is using Arduino UNO R3 connector. But NUCLEO-F767ZI board is using Arduino™ Uno V3. Can i interface X-NUCLEO-NFC01A1 with NUCLEO-F767ZI as a expansion board. I request your help in understanding this.Thanks,J. Sekhar

I am currently receiving a Tag EPC number and wondering how the CRC -16 value is generated so that I can check on reception. Following an Ack command I Receive 16 bytes in the fifo register which are read out as: 0x30, 0x00, 0xE2, 0x00, 0x42, 0x16, 0xCB, 0x60, 0x60, 0x15, 0x00,0x95, 0x1E, 0xD6, 0xB9, 0x1F. The Tag EPC number is: 0xE2, 0x00, 0x42, 0x16, 0xCB, 0x60, 0x60, 0x15, 0x00,0x95, 0x1E, 0xD6.Am I correct to assume the last 2 bytes are the CRC-16, how do we arrive at these numbers?

Hello,I searched in cubemx where to change the default value of gpio pins, but couldn't find it.Does anyone knows ? In generated code, all output gpio are set to 0, for example :HAL_GPIO_WritePin(GPIOK, SW_LED1_Pin, GPIO_PIN_RESET);Thanks,ranran

Posted on April 05, 2018 at 12:22Hi,I'm trying make USB custom HID with stm32f302CB. I'm using Keil v5.23 and STM32CubeMX. The problem: PC just don't recognize the USB, when i running in debug mode i saw something strange. Just after calling HAL_PCD_Init interrupt executing. In HAL_PCD_IRQHandler from there we go to HAL_PCD_ResetCallback. Thet calbek must config USB_EP0R register to config default endpoint. It perform by HAL_PCD_EP_Open. Ther are macros PCD_SET_EPTYPE thet write in USB_EPnR  but in peripheral viewer they doesnt change. It's strange because others USB registers are writing normally. I'm trying write UART_EP0R by my own but it's doesn't work either. In RCC_APB1ENR USBEN is set.Im trying to create same USB HID on STM32F407 Discovery with Keil and CubeMX and it works fine. Does someone have an idea where the problem could be?

I am using the latest (1.06) android sample code for BLUENRG-2 SoC. After compiling the sample code with MobleLibrary-release.aar library, the apk file is created but when I am running the app in my mobile it crashes. I tried to debug the code and saw that the crash happens at/after : "mNetwork = mobleNetwork.createNetwork(address);" in the Configuration.java file. Kindly guide.

Pretty frustrating experience so far. I have seen many people asking but no-one has a straight answer. Very simple question, these are my steps:1- Started Cube32MX, selected NUCLEO and reset all no essential pins. See photo. 2- Clock configuration is set to 96MHz. Trying to set clock to 400MHz creates a never ending searchThis is just one of several dead-end headaches I am experiencing after migrating from L4 to H7. Can someone from ST please make an honest comment on this.

Hi Guys, I've searched the ST website on info for setting up the LCD RGB 24bit controller and can't seem to find any info. The reference manual has a little info but doesn't show pin connections etc. Is there a webpage dedicated to the LCD Controller?Thanks Guys, Peter.

I could not find direct definition for the RCC mode options in CubeMX, are these correct?RCC Mode Options:'Disable' - External oscillator disconnected'BYPASS Clock Source' -  External active clock source'Crystal/Ceramic Resonator' -  External passive oscillator connectedIs this correct? I assume so, just wanted to be safe for confirmation :)CubeMX Loc: 'System Core->RCC->RCC Mode and Configuration->Mode->HSE&LSE'

I am using a STM32F746NG which I am attempting to use the STM32_USB_Host_Library. I am able to initialise and start the process fine, but as soon as I connect a USB device to the port the program freezes. I am unsure if the issue is to do with the configuration of the "STM32_USB_Host_Library" or if the issue is to do with the configuration of "STM32F7xx_HAL_Driver". I have found however that the application won't freeze if I comment out the following line from "stm32f7xx_ll_usb.c" (Although then the app won't work)HAL_StatusTypeDef USB_EnableGlobalInt(USB_OTG_GlobalTypeDef *USBx) { //DISABLING THIS LINE STOPS FREEZING USBx->GAHBCFG |= USB_OTG_GAHBCFG_GINT; return HAL_OK; }Does anyone know why this may happen? Or where the kind of area to look for what happens when the USB connects to see if I can track down further what the actual issue is.Thanks in advance

Hi, guys. I boughtSTM32F446RE, mbed-Enabled Development Nucleo STM32F4 MCU 32-Bit ARM® Cortex®-M4 Embedded Evaluation Board (NUCLEO-F446RE)https://www.digikey.com/product-detail/en/stmicroelectronics/NUCLEO-F446RE/497-15882-ND/53477128MHz ±10ppm Crystal 18pF 80 Ohms HC-49/UShttps://www.digikey.com/product-detail/en/txc-corporation/9B-8.000MEEJ-B/887-1233-ND/2207653Mostly the internal clock is less accurate than the external crystal. So I'm planning to populate a 8MHz clock to the board.If I use the external 8MHz as a clock source, do I get an accurate timing than using the internal high frequency resonator?I noticed the 12-bit DAC of STM32L4 discovery board showed the above result. I tried to toggle 0V ~ 3.3V after 200usec. The waveform was not flat compared to the STM32F4 discovery board's output. Since the STM32L4's APB1 clock is faster than STM32F4's APB1 clock, I thought STM32L4's DAC would do the same job. What is the reason for STM32L4 DAC's output when operating with usec range?

Hello, may someone help me with these peripherals? I have never used them on any ARM.I am using STM32F051C6T8 in this project.My setup, I have two shift register chains connected to SPI peripherals. I am using two peripherals, because two types of registers I am using, have different CPOL/CPHA requirements.I am using SPIs as TX-only, with SS signals generated by software and GPIO peripherals - MOSI and SCLK pins only.RCC->APB2RSTR |= RCC_APB2RSTR_SPI1RST; RCC->APB2RSTR &= ~RCC_APB2RSTR_SPI1RST; RCC->APB2ENR |= RCC_APB2ENR_SPI1EN; SPI1->CR1 |= SPI_CR1_BR_1; SPI1->CR1 |= SPI_CR1_CPHA; SPI1->CR1 |= SPI_CR1_MSTR; SPI1->CR2 |= SPI_CR2_DS; SPI1->CR1 |= SPI_CR1_SPE;Above is init code for SPI1. After I enable SPI(SPE flag), I get mode fault.RCC->APB1RSTR |= RCC_APB1RSTR_SPI2RST; RCC->APB1RSTR &= ~RCC_APB1RSTR_SPI2RST; RCC->APB1ENR |= RCC_APB1ENR_SPI2EN; SPI2->CR1 |= SPI_CR1_BR_1; SPI2->CR1 |= SPI_CR1_MSTR; SPI2->CR2 |= SPI_CR2_DS; SPI2->

Hi,We have a bespoke board built around a STM3L4 and a M24SR04-Y.We share data with a NFC reader, i.e. the NFC reader can write a command into the M24SR EEPROM, interrupt the STM32 via GPO and the STM32 will reply by writing something in the EEPROM.Broadly speaking what we've done works. We can use the NFC reader to change the configuration of our device and retrieve data from the device. We finished this code some weeks ago and have been using it.We have recently realised that if we abuse the process by continually exchanging information between the NFC reader and the STM32 it will eventually fail. Earlier I tried continually reading from the STM32 for 10 minutes, it failed on the 620th attempt.In the STM32 code we're forcing the open session and our code gets stuck polling for this to be successful. After that the M24SR seems to be stuck because there is no response from the I2C or NFC sides.The I2C bus is still working because we have another I2C device and it still responds. Restar

Hi,i would like to rotate the text of a flex button from within the designer.Did i miss something?Will you add the rotation option like on the button with label?

I set up DMA with USART in CubeMX 5.0.1 but it is not working correctly....When callingHAL_UART_Receive_DMA(&huart1,USARTBuffer,10);Only the first [0] field of my array changes and contains a received char. All other fields stay untouched. After that I can do what ever I want, DMA seems not to work until I reset. Than I get once again only one char.What am I doing wrong?Contents of my usart.cUART_HandleTypeDef huart1; DMA_HandleTypeDef hdma_usart1_rx;   /* USART1 init function */   void MX_USART1_UART_Init(void) {   huart1.Instance = USART1; huart1.Init.BaudRate = 9600; huart1.Init.WordLength = UART_WORDLENGTH_8B; huart1.Init.StopBits = UART_STOPBITS_1; huart1.Init.Parity = UART_PARITY_NONE; huart1.Init.Mode = UART_MODE_TX_RX; huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE; huart1.Init.OverSampling = UART_OVERSAMPLING_16; huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE; huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT; if (HAL_UART_Init(&

I have an application where it is necessary to read data from external flash to perform operations on data stored in external SRAM by using the same fmc connections. In this case the parallel interface is important as the operations are time sensitive, internal flash and SRAM is not sufficient as i require about 2MB of each. In a previous application I have, with great success, used the FMC to access multiplexed asynchronous SRAM, I am therefore aware that one has to specify the external memory type in during the FMC setup procedure.In short, would it be possible to read/write from external flash memory by using the FSMC set-up in SRAM mode or would the configuration have to change each time the memory type changes?

Hello,Currently i am using NUCLEO-F767ZI  as a development board for my application. As part of project requirement i have to explore NFC. I have gone through the specifications of X-NUCLEO-NFC01A1. This board is using Arduino UNO R3 connector. But NUCLEO-F767ZI board is using Arduino™ Uno V3. Can i interface X-NUCLEO-NFC01A1 with NUCLEO-F767ZI as a expansion board,will there not be a compatibility issue? I request your help in understanding this.Thanks,J. Sekhar

Hi,I'm using the STM32 F429ZI MCU, and I was wondering if an entire port can be deinitialized rather than one pin at a time. I know of the HAL_GPIO_DeInit() in the STM32 headers but it looks like it works one pin at a time. Is there a function to DeInit an entire port, like DeInit(GPIOx)?

I need to whip up a quick daughter board (shield?) for a Nucleo 144 board (F429 discovery).Are Eagle CAD files available (with board outline, connectors, power+signals, ready to add our components)?Thanks!Best Regards, Dave

Hello all,I built with CubeMX 5.0.1 a project from scratch using the default settings.The modifications:MMC --> SD (otherwise it wouldn't run. Probably ST will change it someday)LWIP enabled with fixed IP addressesAdded two lines to blink a LEDCompilation is okay.Run the software and it will hang at:Thread #1 (Suspended : Signal : SIGINT:Interrupt) HAL_GetTick() at stm32f7xx_hal.c:319 0x80020c6 HAL_Delay() at stm32f7xx_hal.c:382 0x80020ea HAL_ETH_Init() at stm32f7xx_hal_eth.c:289 0x800383a low_level_init() at ethernetif.c:253 0x80087a8 ethernetif_init() at ethernetif.c:606 0x8008968 netif_add() at netif.c:310 0x800ae4a MX_LWIP_Init() at lwip.c:110 0x800854e StartDefaultTask() at main.c:1.707 0x80010aa pvTaskIncrementMutexHeldCount() at tasks.c:4.188 0x800a008 In the meantime I bought a DISC1 board with a STM32F769 version Z but this it's not the solution. I also changed the default Timer TIM6 for SysTick with TIM14.Why is it so difficult to create a simple Hello_wo

How many erase / write cycles is the flash inside the STM32L475VC good for?Thanks.David Smith