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ST25RU3993 Firmware porting into STM32F407.Observations, while ST25RU3993 Initialization.-         Check SPI communication is ok .-         Check EN pin + SPI communication is ok.-         Check IRQ Line is ok.-         Check Crystal is Stable.-         Check PLL is Locked.-         ST25RU3993 Initialize() is returns Zero.                Configuration Parameters of ST25RU3993: -         Internal Power Amplifier (Init PA).-         Base Frequency : 867500 (867.5MHz). -         Reference Clock Frequency : 5

Posted on November 20, 2017 at 16:58On our custom board we don't use RTC clock for time or date.But I need to activate RTC to use Backup registers, and we use GPIOC PIN13 in mode OUTPUT_PP for leds.With STM32CUbeMX 4.23.0 and STM32CubeF1 package 1.6.0 I have two options in Pinout :Activate RCT with 'RTC OUT' as 'Disable' or 'No RTC OutPut'.When 'RTC OUT' is 'Disable', in the screen  'RTC Configuration', I can't select 'No output on tamper pin' so GPIOC PIN13 can't be used.When 'RTC OUT' is 'No RTC OutPut', in the generated code we have :hrtc.Init.OutPut = RTC_OUTPUTSOURCE_NONE; which is OK, but the initialisation of time and date uses RTC_BKP_DR1 with value 0x32f2.So I have the choice of not beeing able to use GPIOC PIN13 or RTC_BKP_DR1.I choosed the first Option, and then manually modify the generated code to write hrtc.Init.OutPut = RTC_OUTPUTSOURCE_NONE; Is there another solution ?Is it possible to have the option 'No output on TAMPER pin' when 'RTC OUT' is 'Disable' in S

Posted on February 02, 2017 at 15:44Hey there, I am relatively new to STM32 Development (coming from an AVR Background).I am currently working on a LoRaWAN sample project using the STM32L053 Discovery board and the SX1272 Modem with IBM LMiC Library. According to the Docs i have implemented all needed functions.So there is this function i have to implement: void hal_waitUntil(uint32_t time).So i just call HAL_Delay(time) inside the function. But if I run the code on the controller the delay never exits.Getting the Systick Value with GDB or PRINTF shows, that the systick isn't increasing anymore after entering the delay. But if I call HAL_Delay() somewhere in the main.c it works without problems (so the systick must work).I attached my eclipse project. In the src folder there are main.c, hardware.c (where i init the peripherals) and hal.c (where the LMiC functions are declared).Would be awesome if someone could help me I'm hangin' there for days...#systick #hal_delay #stm32

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Hi,couple of questions-how long it takes from where the CR95HF reads the data correctly until it sends the data to the MCU (over UART)? let's say it's 10 Bytes user data.when reading multiple blocks- does the CR95HF read single block by single block and then send the whole data or in other way?Thanks

i try to use the nfc reader cr95hf (MIKROE-143) since a few days. as mcu i use the evaluation board nRF52832. unfortunately i don't succeed so far.The data sheet for the MIKROE-143 can be found here:https://www.mouser.ch/datasheet/2/272/rfid_click_manual-255532.pdfI use SPI as communication interface (I set SSI_0 high and SSI_1 low.). According to their datasheet, the CR95HF SPI works in 3 steps:1. send command2. poll with 0x03 until SPI return bit 3 to 13. send command 0x02 to readA Control byte is used to specify a communication type and direction:0x00: Send command to the CR95HF0x03: Poll the CR95HF0x02: Read data from the CR95HF0x01: Reset the CR95HFThe SPI_SS line is used to select a device on the common SPI bus. The SPI_SS pin is active low.My SPI configuration looks like this:nrf_drv_spi_config_t spi_config = NRF_DRV_SPI_DEFAULT_CONFIG; spi_config.ss_pin = NRF_SPI_PIN_NOT_CONNECTED; spi_config.miso_pin = SPI_MISO_PIN; spi_config.mosi_pin = SPI_MOSI_PIN; spi_config.sck_pin

Hi, I'm new with STM32 MCU.While i was following the tutorial in USER MANUAL, i faced communication error and i don't know why.I installed USB Driver, so here the USB PORT is fine with COM7.However, usb software can't detect my BOARD. here is the captureanyone knows how can i solve this?? USER MANUAL: https://www.st.com/content/ccc/resource/technical/document/user_manual/group0/59/22/f4/26/87/f6/47/bd/DM00403798/files/DM00403798.pdf/jcr:content/translations/en.DM00403798.pdfMY Window Version is 10Thanks, Patrick

Posted on July 15, 2018 at 09:26Hi,SBSFU gives me the warning 'SECURE ENGINE INITIALIZATION WITH FACTORY DEFAULT VALUES' on every new power-up of the microcontroller. Is this behavior normal after a power-cycle or is anything not configure correctly?= [SBOOT] System Security Check successfully passed. Starting...======================================================================= (C) COPYRIGHT 2017 STMicroelectronics == == Secure Boot and Secure Firmware Update ======================================================================= = [SBOOT] STATE: WARNING: SECURE ENGINE INITIALIZATION WITH FACTORY DEFAULT VALUES!========= End of Execution =========== [SBOOT] System Security Check successfully passed. Starting...======================================================================= (C) COPYRIGHT 2017 STMicroelectronics == == Secure Boot and Secure Firmware Update ======================================================================= = [SBOOT] SECURE ENGINE INITIALI

Hello,I am working on Power Reduction and we are using STM32F446RE Microcontroller. In the RM i found this, "the regulator output voltage (around1.2 V) can be scaled by software to different voltage values (scale 1, scale 2, and scale3 can be configured through VOS[1:0] bits of the PWR_CR register)."so, my question is what is the regulator output voltage at scale 1, 2 and 3. is it less than 1.2 v? if i run my microcontroller at 80Mhz, then selecting scale 3 would reduce the power consumption ?Thanks

I want to get gps information using p nucleo lrwan1. Can I get an open source that can help? I'll use the uart port.(gps)

I am using STM32. I can read the NDEF file from M24SR via I2c but I want to to delete it after reading so do I erase? I didn't found any example of erasing in app note.

Hi,I am trying to enable free-fall interrupt on INT1 and wake-up on INT2. However only free-fall on INT1 works. Here are the register settings:CTRL_REG1 = 0x6F // 200Hz ODR, enable XYZCTRL_REG2 = 0x00 // disbale HP filterCTRL_REG3 = 0x40 // IA1 Interrupt on INT1CTRL_REG4 = 0x30 // +- 16g FSCTRL_REG5 = 0x0A // latch both interruptsINT1_THS = 0x02 // 372mg threshold for free-fallINT1_DURATION = 0x03 INT1_CFG = 0x95 // setup free-fallCTRL_REG6 = 0x02 // IA2 Interrupt on INT2INT2_THS= 0x10 // wake-up threshold 3gINT2_DURATION = 0x00 INT2_CFG = 0x2A // setup wake-upI suspect it has to do with CTRL_REG6. I'm assuming "interrupt 2" refers to the interrupt selected in INT2_CFG, which in this case is wake-up? Regards,Kevin S

Hi,I am reading data out from two LIS3DHs. All works as expected until the full scale is set to +-16g.According to the data sheet, when FS is 11 and low power mode is enabled, each LSb in the data output registers represent 192mg. Low-power mode gives a 8 bit output in the OUT_X/Y/Z_H registers. The maximum value of a 8 bit 2's complement number is 127, and thus the data output registers can in theory show 127*192mg = 24g. This exceeds the +-16g threshold. Does this mean that in low-power mode and +-16g full scale, the number in the data output registers can never exceed 16000mg / 192mg = 83? I am getting values such as 127 and -128 from the data output registers, which don't make sense to me. I believe my register configurations are correct, as I was able to read (0, 0, 5) when the accelerometer is placed flat on the ground. 5*192mg = 960mg, which is close enough to 1g considering the limited resolution.Regards,Kevin S

I'm trying to use the X-CUBE-NFC5 Code in an freeRTOS Project. With only one Task it works well, but when i try to add an other Task it does not. Depending on Task priorities the demo cycle is still working but all other tasks are starving or it even does not work at all. What am i doing wrong? 

I'm trying to debug an application running on a STM32F722 on a custom board. Right now I'm using Atollic TrueStudio and (an original) J-Link EDU.Flashing works totally fine, but when I try to debug, the debugger will throw an error when hitting some breakpoints. In fact, the debugger stops normally at breakpoints in main.c and functions called from main.c, but when reaching breakpoints in functions triggered from external interrupts, it fails with this message:ERROR: Can not read register 15 (R15) while CPU is running  [when BP is hit]Reading all registersERROR: Can not read register 0 (R0) while CPU is runningERROR: Can not read register 1 (R1) while CPU is runningERROR: Can not read register 2 (R2) while CPU is runningERROR: Can not read register 3 (R3) while CPU is runningERROR: Can not read register 4 (R4) while CPU is running...The complete debug log as well as the debug script are attached.The even weirder part is that this has happened before when using a Nucleo board

MCU : STM32F446RETCubeMX Version : 4.26.1​===​Hi! I'm currently developing usb CDC(Communication Device Class / USB-OTG-FS) through STM32CubeMX.​​When I upload the automatically generated code without changing any settings, the usb device will not be recognized properly as follows.(Error code 10)​​​However, ​following this YouTube video https://youtu.be/oDoavXrQdEg, change the CDC_DATA_HS_MAX_PACKET_SIZE value of usbd_cdc.h file from 512 to 256, and you can see that it is normally recognized.​Is this a problem with the STM32CubeMX library?​Thanks! =)

Afternoon Everyone,I'm using an stm32f722zeI'm not sure if I'm doing something wrong or misunderstanding the working of the SPI (it could be either) but I have it up and running.I've got a SPI implementation in slave mode with DMA, like this:static void MX_SPI1_Init(void) {   /* SPI1 parameter configuration*/ hspi1.Instance = SPI1; hspi1.Init.Mode = SPI_MODE_SLAVE; hspi1.Init.Direction = SPI_DIRECTION_2LINES; hspi1.Init.DataSize = SPI_DATASIZE_12BIT; hspi1.Init.CLKPolarity = SPI_POLARITY_LOW; hspi1.Init.CLKPhase = SPI_PHASE_1EDGE; hspi1.Init.NSS = SPI_NSS_HARD_INPUT; hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB; hspi1.Init.TIMode = SPI_TIMODE_DISABLE; hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE; hspi1.Init.CRCPolynomial = 7; hspi1.Init.CRCLength = SPI_CRC_LENGTH_DATASIZE; hspi1.Init.NSSPMode = SPI_NSS_PULSE_DISABLE; if (HAL_SPI_Init(&hspi1) != HAL_OK) { _Error_Handler(__FILE__, __LINE__); }   }And the DMA: hdma_spi1_rx.Instance = DMA2_Stream0; hdma

Hi guys, my codes go into interrupt function just one time.Could you offer me any solution?device clock 72 MHZdevice clock 180 MHZCAN // 1. device   hcan.Init.Prescaler = 4; hcan.Init.Mode = CAN_MODE_NORMAL; hcan.Init.SJW = CAN_SJW_4TQ; hcan.Init.BS1 = CAN_BS1_4TQ; hcan.Init.BS2 = CAN_BS2_5TQ;   CAN // 2.Device   hcan1.Init.Prescaler = 5; hcan1.Init.Mode = CAN_MODE_NORMAL; hcan1.Init.SJW = CAN_SJW_4TQ; hcan1.Init.BS1 = CAN_BS1_4TQ; hcan1.Init.BS2 = CAN_BS2_5TQ;    

I’ve an weird issue with one of my boards. On the code where the clocks are initialised(it’s the default code generated by Cube), the mcu gets stuck on the line, HAL_Pll_Enable and it continuously restarts the mcu every 6ms. But the same hex file, works good in another board. For details, I use an external crystal set to run at 12MHz and once the mcu is on and if I put a breakpoint, I can monitor the output of the crystal, Rcc_osc_out and Rcc_osc_in to be precisely 12MHz.if i configure the system clock to use HSE instead of PllClk, then it works, but I want the board to work with pll to a frequency of 72MHz. This is the first time it’s happening and I’ve no clue where to pinpoint the issue since the core keeps restarting without providing any fault reports or setting some error bits. And when it restarts, I get this warning during debug mode, “cannot access target.�? Can someone shed some light on this issue?thanks !

I am trying to measure the power consumption for Nucleo-144 board.Here is my configExternal power supply 8VJP6 to VINConnect Fluke multimeter to power supplyConnect multimeter to CN8 pin 15Connect ST-LinkCall HAL_PWR_EnterSTANDBYMode() or LL_PWR_SetPowerMode(LL_PWR_MODE_SHUTDOWN) force system going standby/shutdown mode.Is the config correct? I am trying to disable most of the buses before standby. The system doesn't seems go to standby mode since after the call, I am still able to run from IDE.Is there anything I am missing here?Thx HAL_ADCEx_DisableVoltageRegulator(&hadc1);// HAL_CAN_RequestSleep(&hcan1); HAL_CAN_Stop(&hcan1); LL_SPI_Disable(hspi1.Instance); LL_SPI_Disable(hspi2.Instance); LL_USART_Disable(huart1.Instance); LL_USART_Disable(huart2.Instance); LL_USART_Disable(huart4.Instance); __HAL_RCC_SPI1_CLK_DISABLE(); __HAL_RCC_SPI2_CLK_DISABLE(); __HAL_RCC_CAN1_CLK_DISABLE(); __HAL_RCC_USART1_CLK_DISABLE(); __HAL_RCC_USART2_CLK_DISABLE(); __HAL_RCC_UART4_CLK_DI

Hello, I was trieng to use STM32Mat (with simulink) and came across some errors.I discovered that the HAL Library was updated but the STM32Mat wasn't.I'm willing to code everything by hand without using Simulink but I would need documentation on the CAN functions. Is this information provided somewhere?best wishes, Jannis Dohm

Posted on May 18, 2018 at 01:14Aspreviously reported on another post I cando an 'inventory' and get a tag ID back successfully.  I did that by getting the example application for STM32F401RE-Nucleo and X-NUCLEO-NFC0A1 boards ==>>  code is STM32CubeExpansion_NFC5_V1.2.0I am now trying to read and write to the tag.  Unfortunately the above example code stops at getting an 'inventory'.After getting the inventory here:  rfalNfcvPollerInitialize();           /* Initialize for NFC-F */  rfalFieldOnAndStartGT();              /* Turns the Field On if not already and start GT timer */   err = rfalNfcvPollerCollisionResolution(1, &nfcvDev, &devCnt);  if( (err == ERR_NONE) && (devCnt > 0) )  {    /******************************************************/    /* NFC-V card found         

Hi everyoneI have chosen st25r3911b to my new project for NFC and mifares .now I am wondering if it dose not support DESfire , I have to change my project and choose another chip .could you please help me .

Posted on October 18, 2017 at 08:30Hi All,Why there are no standard libraries for the STM32L0XX family?Building a new project for  STM32L0XX depend only on HAL / LL ??link to ST standard libraries download page :http://www.st.com/en/embedded-software/stm32-standard-peripheral-libraries.html?querycriteria=productId=LN1939 Thanks in advance,Moran.#hal #standard-peripheral-library #ll-drivers

Posted on June 07, 2018 at 18:44After updating to CubeMX 4.26.0, Makefile projects cannot be updated due to the following errors:2018-06-08 00:35:55,360 [INFO] ToolchainGenerator:120 - stack trace : java.lang.UnsupportedOperationException: Not supported yet. at generators.MakefileGenerator.updateHeapAndStack(MakefileGenerator.java:315) at generators.Generator.generateLinkerFile(Generator.java:715) at generators.Generator.copyLinkerFile(Generator.java:407) at convertor.Convertor.generateMakefile(Convertor.java:1436) at convertor.Convertor.generate(Convertor.java:608) at convertor.Convertor.convert(Convertor.java:515) at convertor.Convertor.updateProject(Convertor.java:384) at com.st.microxplorer.plugins.projectmanager.model.ToolchainGenerator.update(ToolchainGenerator.java:114) at com.st.microxplorer.plugins.projectmanager.engine.ProjectBuilder.createToolChainFolders(ProjectBuilder.java:1780) at com.st.microxplorer.plugins.projectmanager.engine.ProjectBuilder.createProject(ProjectBuild