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Posted on February 02, 2017 at 16:26Dear all,I'm using a STM32 NUCLEO-L073 together with NUCLEO-NFC03A1.and we want to read and write data to the tag RF37S113 Tag-it from TI.This tag is compliance with ISO 15693.I can successfully detect the TAG, but that's all. I can't write data to the tag.I used the following seuqence:>>.. represents data to CR95HF in hexadecimal<<.. represents data from CR95HF in hexadecimalProtocolSelect   >> 02 02 0109   << 00 00ISO15693_init   >> 09 04  680101d1   << 00 00Inventory   >> 04 03  26 01 00   << 80 0d  00 00 7a 0f a1 66 e7 c0 07 e0  d389  00   According to chapter 4.1 of iso 15693-3 MSB is 'e0', everything seems correctWriting (01 02 03 04 into block 0) (UID is left, according to iso 15693 this is optional)   >> 04 07  02 21 00 01 02 03 04   << 80 05  01 03 04 24 00&n

Posted on February 14, 2017 at 00:23I am using the ST iso19653 and CR95HF software libraries in my application and by following the example set in the M24LRXX code I can make an inventory of a single tag. I want to be able to regonise more than 1 tag in the field and have tried using the 16slot inventory command but this returns with an error. As there are no worked examples for the detection of multiple tags I am not sure how to set up the mask length and mask parameters.

Posted on February 14, 2017 at 09:07Hi, cannot find blueNRG gui in STSW-BLUENRG-DK   archive..exe is missinghttp://www.st.com/etc/clientlibs/st-site/media/app/images/viper17/icon_active.png. If somebody can help me with a link or can send me the file. Thanks.#stm32 #bluenrg-gui #bluenrg

Posted on February 13, 2017 at 18:23Hello!NUCLEO-F767ZI lost in STM32CubeMX 4.19.0 while it was introduced in 4.18.0.I have installed STM32CubeMX as standalone (on a different computer) and as a plugin for Eclipse (as update) - the same result: NUCLEO-F767ZI missing. What happened?Regards,Dmitrij#stm32cubemx

Posted on February 08, 2017 at 23:03STM32L082xx WLCSP49 Not in CubeMX - can the stm32l072czex be used instead? what is the difference between these two parts?#stm32 #cubemx #stm32l0x2

Posted on February 01, 2017 at 18:02HiBy writing a program for very simple one channel ADC I faced with very strange behawior of the ADC in my MCU. During tests of the A/D converter, I read Vrefint (channel 17). If very shortly after calibration, about 1 second, I do the A/D conversion, everything is OK, I have correct value. In case I wait for a few seconds (more then 4 seconds) result is wrong. If I do second read very shortly, less then 4 second, I got correct result. If I do reading every second, the results are OK except first one. Note that incorrect value always is 2048 decimal (very strange).In case I do reading two different channels effect is the same. This mean that I always have to do two conversions to have correct value or to do readings non-stop for all the necessary channels even if I don't need it.In the attachment are flowcharts for ADC calibration, setup and conversion. I need to know what I'm doing wrong.Note that clock source for the ADC is HSI at 4

Posted on January 28, 2017 at 03:29I have board with STM32F050K6U6 microcontroller. I want to change my application program using ST-Link2 -Discovery Board and IAR software, But This chip is not found In IAR support. How can i debug and program it?

Posted on December 19, 2016 at 09:27STM32CubeMX version: 4.18.0Toolchain: SW4STM32 MCU: STM32F103ZET6FW: STM32Cube FW_F1 V1.4.0Wrong syntax for defined symbols. Quotation marks missed.E.g.  __weak=__attribute__((weak))  instead  __weak='__attribute__((weak))'We got make error 258 because of this.For STM32F4 series all works fine.

Posted on February 09, 2017 at 19:42When I run aci_hal_write_config_data() as a first command after BlueNRG-MS reset, I get ERR_CMD_SUCCESS. But when I call getBlueNRGVersion() first, then I get ERR_COMMAND_DISALLOWED from aci_hal_write_config_data(). What is the reason? How checking BlueNRG-MS version can affect any other command?#command #version #aci #bluenrg-ms

Posted on February 10, 2017 at 07:20Hello, I'm trying to write an I2C slave using HAL which can accept variable length packet sizes.  I know this question has been asked before but haven't seen any solutions yet! The master can send data packets of variable length - all the HAL I2C methods seem to need a 'length' parameter.  Has anyone found a solution to this?#i2c #hal

Posted on February 10, 2017 at 04:47I am a beginner in stm32 and I don't understand that how to download the code to the microcontroller.I am also confused about JLink, SWD and st-link. What's the differences between them?Where can I find these information on the datasheet? Thank you!#st-link #stm32

Posted on January 12, 2017 at 01:57Upgrading from 4.17 to 4.18 has silently removed the selection of external triggers from ADC2 on an F303RE. Not only are the selections missing from the generated code, the option in the UI is missing as well.Manually patching the generated 'main.c' file fixes the problem but it means that each time I regenerate the code I have to remember to hack it.I would also question the operation of the EOCSelection field as the UI allows 'ADC_EOC_SINGLE_SEQ_CONV' to be chosen but the HAL code itself says '/*!< reserved for future use */'#cubemx #adc

Posted on February 06, 2017 at 11:53Hello,I am having a problem getting the STM32 Embebbed Matlab/Simulink Target to run. I am following the example in the STM32_MAT-TARGET_HandsOn.pdf document for the third example (everything on STM32) step by step, but whenever I try to build the model from Simulink I get the error: === Build (Elapsed: 0.840 sec) ===    ♯♯♯ Real-Time Workshop build procedure for method: 'entry    ♯♯♯ modelName: 'Test3    ♯♯♯ gcs: 'Test3    ♯♯♯ bdroot: 'Test3        ♯♯♯ Starting Real-Time Workshop build procedure for model: Test3    ♯♯♯ Windows version:win64    ♯♯♯ Model connectivity is: normal    ♯♯♯ Create verification block: None    ♯♯♯ Real-Time Workshop build procedure for method: 'error    ♯♯♯ modelName: 'Test3    ♯♯♯ gcs: 'Test3    ♯♯♯ bdroot: 'Test3   

Posted on January 26, 2017 at 13:31Hello, we are having problems with communicating to sensor LSM9ds1tr via SPI with sm32l011k4 mcu. The problem is that SPI seems to work good and looking with logic analyzer proves that everything is okey, we are seeing exactly the same thing as mcu reads. We are trying to read the WHO_AM_I register of accelerometer/gyroscope and magnetometer and for some reason we read wrong values compared to the datasheet. According to the data sheet, then reading ACC/Gyro  WHO_AM_I register the value should be 0x68 and then reading Magnetometer WHO_AM_I register the value should be 0x3D. However, when reading these, we always get 0x40 when reading accelerometer/gyro register and we always get 0x38 when reading magnetometer WHO_AM_I register. Could anyone help us to solve the problem and point out what we are doing wrong? I attach the schematics of the sensor, spi initialization code and our reading function + snapshots from logic analyzer. /* * @brief: f

Posted on December 13, 2016 at 01:06Hi All, I am developing device to analyze vibration with LIS2DE12 acceclerometer.I have encountered problem that sensor did not work with ORD=5.3kHz, it worked fine for all other ODRs.How to configure sensor to work ODR=5.3kHz ?My configuration is as followsCTRL_REG1 : 0x97CREL_REG3 : 0x10 CTRL_REG4 : 0x10All other registers are default. My expected processing steps are as follows1. INT1 pin is enabled when sensor data is ready2. MCU got INT1 signal, send event to handle interrupt3. interrupt handler read sensor data.As I have measured, the period of INT1 signal is around 1.3kHz please take a look at my configuration and let me know anything to check. Regards,Hae Ryong

Posted on February 08, 2017 at 10:22Hi,I am trying to capture external events on a GPIO pin PC.9 using TIM3 CH4 input capture. I cant understand why I am not getting TIM3 CC4 events with the TIM3 interrupt. Spent a bit time pulling my hair over the issue, but unable to find the problem. Interesting to note was that I was able to get it working with TIM1. But for my understanding purpose, I would like to have it working with TIM3.Attached code of what I am doing.Any idea, what could be wrong ?Thanks,#tim3-input-capture

Posted on February 07, 2017 at 14:59Hi All,I am new to the STM32 platform and as such I am playing around with sensors to gain some experience. I am using Atollic Lite and CubeMX to ease the learning curve.I am having a problem communicating over SPI with an MPU-9250 IMU -  All I want to do right now is read the WHO_AM_I register and as such I am using the HAL_SPI_Transmit(), HAL_SPI_Receive() and HAL_SPI_TransmitReceive() functions.Here is a screen grab from my logic analyser:- The first clock burst is a HAL_SPI_Transmit() to write data.- The second  and third clock bursts is a HAL_SPI_Transmit() and HAL_SPI_Receive() to read a registers data.- The fourth and fifth clock bursts are a HAL_SPI_TransmitReceive() to read the same register data as in the previous burst.As you can see, there is no response on the MISO line when data requests are made. This is my problem and for the life of me I cannot find the issue. I have a feeling is is a configuration issu

Posted on February 07, 2017 at 22:02Is a discovery board available for any of the stm32f417 variants?#stm32f417 #stm32f4-discovery

Posted on February 07, 2017 at 10:44Hello,we are developed products based on STM F0 (F072RB) and F4 (F405VG) Series. We use the DFUSe Bootloader to program our devices using USB. Every thing works as expected, great job and thanks to ST for this solution.The problem:Now we implementing a new product base on the STM32L072KB (128k Flash).I set the device to DFU mode, it enummerates on USB as expected and it gets listed in the Dfuse Demo (v3.0.5).The Dfuse Demo lists 1536 sectors (128 b per sector) for the controller.I wase a bit confused as the device had only 128k flash so the demo should list 1024 sectors. I tried to readback the device memory an it seems that the application fails. The dfu files read from the controller is just 1K, it seems that the erase function didn't work and the leave DFU command also seem to fail.I also tried my own c♯ libs to read from the device. These libs work perfectly on the F0 and F4 with a r/w blocksize of 256 byt

Posted on February 07, 2017 at 14:29In STM32F76xxx and STM32F77xxx silicon limitations DocID028806 Rev 4, 2.2.2  BSY bit may stay high at the end of a data transfer in slave mode which is entirely an SPI error, is listed under I2C peripheral limitations.JW

Posted on February 06, 2017 at 09:07HiI'm using the STM32F401RE Nucleo board, I have noticed that the internal clock HSI has a quite high inaccuracy over temperature and it's not suitable for my application.I want to use an external clock for the board but I don't know how to properly install and configure the external clock?And in STM32Cubemx, when selecting SMT32F401RE Nucleo board, in 'Clock Configuration' tab, it's not possible for choosing the HSE clock, only HSI clock available.Any example on how to use external clock source would be great for me.Thanks#external-clock #stm32f401-nucleo #stm32f4 #stm32

Posted on February 05, 2017 at 16:28Hi,I am trying to interface SD card to stm32l432kc micro controller over SPI and using sparkfun's sd card breakout board.https://www.sparkfun.com/products/12941. I am using sandisk 2GB memory for test.I did connections in following way.PA1(SCLK) - SCLK(SD)PA6(MISO) - D0(SD)PA7(MOSI) - CMD(SD)PB4(CS) - D3(CS in SPI mode)3.3V - Vcc(SD)Gnd - Gnd (SD)In this controller there are two SPI's. I tried both but not able to pull SD card out of Idle mode. Tried using different CS pin other than NSS pins, tried with all alternate functions available on pins. But the results are same. Following is the sequence that i am using.1. CS high2. Initial sequence of 80+clock pluses3. CS low4. Send 0x40,0,0,0,0,0x95 to put sd card in Idle mode.I could see the  MOSI and clock pulses on logic analyzer (USB) and SD card is expected to send 0x01 response for CM0.But i am getting 0xFF only.code for SPI init__HAL_RCC_GPIOA_CLK_ENABLE();__HAL_RCC_SPI1_CLK_ENABLE();GPI

Posted on February 06, 2017 at 17:58I'm really stumped on this one. I have a STM32F411 chip on a Wifi module and I'm trying to get the Serial Wire Output to work. My configuration code is below. Now I can see that there's some signal on the SWO line under the oscilloscope. The signal is about 3.1V peak to peak, but biased around 0V (i.e. signal is changing between -1.5V to 1.5V). On my computer, ST-Link Utility shows nothing in the Serial Wire Viewer. My clock is configured to be 96MHz through PLL and the ST-Link automatically chooses 2MHz for the SWO frequency. However, the signal from the oscilloscope looks more like 1MHz. Any idea on how I can fix this?/* Configure Trace Port Interface Unit */   CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk; // Enable access to registers   TPI->ACPR = 47; // Trace clock = HCLK/(x+1) = 2MHz   TPI->SPPR = 2; // Pin protocol = NRZ/USART   TPI->FFCR = 0x102; // TPIU packet framing

Posted on January 26, 2017 at 15:09Hello,I'm using a STM32F767BI and I want to use the bootloader functonnality. I want to use USART1 (PA9/PA10) and the BOOT0 pin. I read AN2606 and I use pattern 9  (nDBANK(bit) = 1, Boot(pin) = 1 and BOOT_ADD1(optionbyte) = 0x0040')So :- I configure my options bytes (even if default value was ok)- I set the BOOT0 pin to 1- I power my board-  I send 0x7F several time to activate the bootloader in UART mode.On my board this doesn't work : the �C doesn't respond.I tried the same thing on the F7 discovery board and it worked fine. The main difference is the �C (STM32F746 for the eval board)I know the nDBANK register has been add on the F76X serie but I don't understand why this doesn't work on my board.Do you have any idea ?Thank you in advance !#bootloader #stm32f767 #stm32f7 #bootloader-problem #uart

Posted on February 05, 2017 at 14:01i am trying to programm stm32f429 MCU on custom board with keil,i have generated project with cubeMx but when trying to programm the MCU i get the message 'Flash Timout. reset Target and try again'.keil can see the MCU but would't erase the MCU.What could cause that Issue?Thanks.