Solved

Posted on May 18, 2017 at 16:09Hello, I recently migrated from 8 bit processors and something that has always worked for me is showing some unexpected behavior. Clearly I am missing something very obvious to you 32 bit guys // define a structure somewhere in header filetypedef struct{ char first[2]; char second[2]; char third; char fourth; uint8_t fifth; uint16_t sixth; uint8_t seventh; char eight;} my_struct;// create a fielduint8_t my_field[11]={0x2D, 0x43, 0x30, 0x30, 0x52, 0x75, 0x01, 0x0D, 0x00, 0x01, 0x21}; my_struct *p_to_mystruct=(void *)my_field;now if I look into contents of p_to_mystruct i get this:p_to_mystruct->first[0] = 0x2Dp_to_mystruct->first[1] = 0x43p_to_mystruct->second[0] = 0x30p_to_mystruct->second[1] = 0x30p_to_mystruct->third = 0x52p_to_mystruct->fourth = 0x75p_to_mystruct->fifth = 0x01p_to_mystruct->sixth = 0x0100 // NOTICE A PROBLEM HEREp_to_mystruct->seventh = 0x21 // ALSO WRONGp_to_mystruct->eight = 0xb5   /

Posted on July 06, 2016 at 16:22Running the install SetupSTM32CubeMX-4.15.1.linuxcrashes. OS: Ubuntu 16.04LTS 64 Bitjava version:java -versionopenjdk version ''9-internal''OpenJDK Runtime Environment (build 9-internal+0-2016-04-14-195246.buildd.src)OpenJDK 64-Bit Server VM (build 9-internal+0-2016-04-14-195246.buildd.src, mixed mode)Attached is crash log

Posted on May 17, 2017 at 12:50HI, not much experice with Cortex Devices,Is there any Software Interrupt Example, for M0/M0+ devices.I am using STM32 Cube's HAL structure, with a F091 Nucleo board.Just found a void SVC_Handler(void) in the stm32f0xx_it.c,I don't know to implement this, any idea?Thanks!#stm32f0-exti-swi #svc

Posted on May 17, 2017 at 23:22This is a followup to https://community.st.com/thread/40921-multi-slave-spi-using-stm32f7s&sharpcomment-157367 .RM0385, requests MISO being set to open-drain when multiple slaves are connected. This indicates, that NSS set to the inactive state *does not* threestate MISO in STM32 SPI set to slave, as is the custom with SPI. This makes using multiple STM32 SPI slaves not practical.Other than this, I could not find any indication of MISO behaviour in this regard in the RM.I also went to the respective datasheet and the graph indicates that MISO *does* threestate when NSS goes inactive:The STM32F40x DS, in the same table, for the same parameter, the footnote clearly states that MISO is to be threestated (put to Hi-Z)ST, please comment.Jan Waclaweknull

Posted on May 18, 2017 at 11:28Hi all,In my application I am talking to M24SR02 chip over I2C with 100kHz clock. The problem I am having is with ReadBinary command. In the application I issue exactly the same ReadBinary command over and over again - reading 0x10 bytes from offset 0x0097. NDEF message length is set to 0x00E5 in two first bytes of NDEF file in M24SR02. During operation I am not changing the contents of NFC chip, just read it over and over again. Most of the time ReadBinary works fine returning correct values from M24SR02 memory, however sometimes exactly the same command returns 0x6A 0x86 error ('Incorrect P1 or P2 values'). Then after that point re-issuing the same ReadBinary command returns the same error forever. If after receiving and error I change the offset in command to say 0x0000, then everything goes back to normal and ReadBinary works again. I've checked I2C traffic of the offending packet with the scope and I can see that the command sent to M24SR02 is

Posted on May 17, 2017 at 07:54Hi, I have chosen STM32F072RB for our project and I have use it in design. But now we must store about 128-byte data for the calibration of our device. STM32F072RB�s flash is 128K. it is too big for this application. So, I want to use its spare space to store these calibration data (128 bytes) and save an extern flash.Now my issue is, how could this MCU store the data to its own flash?Thanks.#stm32f0 #calibration #flash

Posted on May 15, 2017 at 11:03Hello,I am working on SPC560C40L1 board. I should make use of ADC peripheral and I noticed that there exists three different ADC type pins. (GPI, ANS and ANX). The functional description of each ADC pin is not described in the datasheet or reference manual.Kindly share me the functional description of different ADC pin types which will make us to select the appropriate ADC pin in our hardware design. Also kindly suggest the best ADC pin type among GPI, ANS and ANX.Thanking you in Advancewith Regards,R.Santhamurthy#adc #spc56

Posted on May 17, 2017 at 16:59hi, when i use the m24lr 04e discoveryi cant find the example code of itwhere can i find itis somebody can help mea new user ask

Posted on May 17, 2017 at 13:45Hallo, on my NUCLEO board with a STM32F765ZI MCU I want to activate the compensation cell.I can do this via* HAL_EnableCompensationCell();* LL_SYSCFG_EnableCompensationCell();* oder manually via** SYSCFG->CMPCR |= SYSCFG_CMPCR_CMP_PD;** SYSCFG->CMPCR = SYSCFG_CMPCR_CMP_PD;All methods will only set bit&sharp0 in SYSCFG->CMPCR.After setting Bit&sharp0 I should be able to see this bit as set, and - after a while - I should also see bit&sharp8 as set, which signals that the compensation cell is ready... but...when I read SYSCFG->CMPCR I ALWAYS get 0.I am waiting for bit&sharp8 to be 1 in a while loop, so this while loop is infinite.I checked the assembly code and it is right! Bit&sharp0 is set but the MCU will not show that even this bit is set (and therefore bit&sharp8 is also 0)...What is the right procedure to activate the compensation cell?Is there a hardware error in the STM32F765ZI MCU?Thank you in advance!#compensat

Posted on March 13, 2017 at 14:15Hi.So I've got STM32F469I-Discovery board. I've connected MEMS microphone to I2S input that outputs 16khz and 16bit (in 32bit frame) stereo PCM output. I'm using the SAI1 via BSP_AUDIO interface (defined in stm32469i_discovery_audio.c) to output data to audio codec like in audio record and playback example. Only difference is the data rate of the source.Anyho I'm totally baffled with the clock configuration. I've read the reference manual SAI part and what ever I've managed to google about the STM SAI/I2S clock generation. Also I've tried to setup them via CubeMX. However none of the configurations seem to work properly, but I managed to iterate the clock in ballpark just by changing the PLLSAI.PLLSAIN by hand. However I really don't understand how should I really calculate the clocks properly. Is there any documentation that would clear this?Input I2S: 16bit stereo in 32bit frame @ 16khz (1.029Mhz clock checked with scope)About working config:RCC_OscI

Posted on May 15, 2017 at 18:45Hello,I have the a question about LIS3MDL.I have read http://www.st.com/resource/en/datasheet/lis3mdl.pdf and an http://www.st.com/resource/en/application_note/dm00136626.pdf, but have no idea, how to interpret the data according to chapter 3.3 Understanding magnetic data.Maybe I am missing something, but it seems we are supposed to reverse engineer the data from the table? I can't see any equation as in ANs for another components.Thank You,David#e-compass #magnetometer

Posted on May 15, 2017 at 17:04How i can translate the raw data from LIS2DS12 to G for 2/4/8/16g range?#raw #g #lis2ds12

Posted on May 15, 2017 at 20:37Hi everybody,I can't blink a led on GPIO B3 (PB3) port , the code works well on another ports like PB5 PA5... but not on PB3.I have buy another nucleo board cause I was thinking I have an issue with my previous board but same issue on the new board. Anyone have a explanation.FYI I need this port to emulate an aim board which use this port for a status led so...Thanks for your helpEtienne

Posted on May 02, 2017 at 03:32Hi to everybody!! I'm really concerned about an issue with my MCU. When I use direct current in two channel inputs of the ADC converter, I can see the data and the measurement of the two channels in a right way (I use Matlab and Docklight to receive the signal trough the USART). The problem appears when I start to measure a sine wave, then  just one of the two channels works and the other one measure zero. I use now an operational adder circuit before the input of the ADC and without it, that channel wich works, send the highest value (4095) while the other one remains at zero. What could be the problem, should I add an adder non inverter at the input of the ADC channel, it's the MCU? I really appreciate your help and thank you very much from now!!#stm32f103

Posted on May 16, 2017 at 12:47 I am using DFU source code for nucleo board available in STM32F2Cube.I have generated .dfu file from existing GPIO code. but when i am upgrading the dfu file into nucleo board it is showing as upgrade successful and after clicking on leave DFU mode it is indicating successfully left DFU mode but it is again coming back to DFU mode. I am using -SW4STM32 for generating binary/hex -DfuSeDemo v3.0.5 -while converting from bin to dfu i am giving address as 0x08008000 Note: this post was migrated and contained many threaded conversations, some content may be missing.

Posted on May 13, 2017 at 14:25I tried to download L6180X PC software graphical user interface (GUI). Unfortunately the link for download:http://www.st.com/content/st_com/en/products/embedded-software/proximity-sensors-software/stsw-img004.html does no operate. Is the software available in an other location?

Posted on January 27, 2017 at 23:28Hi.I have problem by SPI that is :When i want to send data for example in slave mode during receiving from master. data will corrupt ( if i just receive data and send to UART it works fine). I think it happens Because both TXE and RXNE occurs at same time and when MCU is in ISR data will rewrite in data register before transfer to Tx/Rx buffer  . How can i Handle this in continuous transmission ?  . it's my code :-------------------------------------------------------------------------↓//Slave Partvoid SPI2_IRQHandler(void){ static char counter = 0x40;            if ( SPI2->SR & SPI_SR_RXNE ) {                    sendToUart(SPI2->DR);            }            if ( SPI2->SR & SPI_SR_TXE ) { &n

Posted on April 19, 2017 at 10:37Hi everybody, I would like to use my CR95HF reader in a Qt quick application (on Windows computer). For that I tried to include the CR95HF.dll and the CR95HF.h in my project. For that I paste the two files on my Qt project folder and include my dll in my .pro like that:   LIBS += -L'./CR95HF.dll'And the header file in my main.cpp like that:  &sharpinclude <./CR95HF.h>The both files are corretly find. My problem is the 'HidManager.h'. Indeed this file is not find by the header file.Maybe I need to past these files in another place ?Does anyone have any idea to help me ?Thanks a lot !Have a good dayRegardsSimon#qt-creator #cr95hf.dll #cr95hf #rfid

Posted on February 02, 2017 at 11:28New version of STM32CubeMX 4.19.0 is giving the following error. what is the problem with LWIP version 2.0.0?#stm32cubemx-4.19.0-lwip-problem

Posted on February 16, 2017 at 17:26Hi allIn the HAL F1, Is there a function to stop serial reception and reset the UART HAL driver state?e.g. when I start a new reception in interrupt mode to receive 10 bytes, but after some time I decide to stop the reception and reset the uart HAL state back to 'stand by', discarding any data that (maybe) were received before completing 10 bytes (and hence before triggering the callback function)Isn't this function lacking in HAL or am I missing something?And another question / suggestion:Is there any sub-forum where we can follow HAL bug-tracks / fixes / possible new HAL versions release dates and etc?I already suggested/reported a couple of features/bugs regarding the HAL lib, but I feel like the process isn't transparent to the user (like me) at all, every time a new version is released there is no information about which bugs/features where corrected or added... Thanks#stm32f1 #hal #uart #usart

Posted on May 03, 2017 at 23:26Hi all,I have 3 boards with 3 different MCUs, one with STM32L053R8T6, one with STM32L152RCT6, and one with STM32L443RCT6.All use same 32,768Khz LSE crystal and 12pF caps. But only STM32L053 works fine when LSE is turned on ...other two MCUs jump to Error handler function. i used STM32Cube for all 3 MCUs. a simple program to turn on LED for example ...I even changed the crystal with another type, or increased LSE Timeout Value in STM32Cube to 10000 but still no result.I checked in Debug, the LSERDY flag is not activated and it leads to Timeout and jump to Error Handler function.What can be the problem ?!#lse-startup

Posted on April 28, 2017 at 11:37Hi,Currently, I'm working on a project where LCD, Camera and CAN are involved.I'm using STM32F769I-EVAL platform for my work with 'SetupSTM32CubeMX-4.19.0' installation and 'STM32Cube_FW_F7_V1.6.0' firmware package.As far as my understanding, Camera and LCD required accurate clocks hence, I have to use HSE oscillator clock for the same.When it comes to bxCAN, I have seen many of the example source initialize HSI clock for the same. When I try to make it into HSE, then BxCAN is not functioning properly!The only CAN example I have found with HSE clock is 'CAN_Networking' example from 'STM32Cube_FW_F7_V1.6.0' firmware package, in which only one side (transmitting) is working properly and other side (receiving) not.So, I would like to know whether bxCAN can work with HSE oscillator clock. If yes, then which values (such as SYSCLK,HCLK, AHB Prescaler, PLLM etc. ) I have to put for the HSE clock configuration in-order to make it work for LCD,

Posted on May 11, 2017 at 04:59Hi,Is there any way to prevent some interrupt sources waking up when in stop mode except the one I want?  I may not know what interrupts are enabled/disabled when entering stop mode (obviously I could check the registers).I want to delay in stop mode using the RTC wakeup timer but don't want other interrupt sources (eg EXTI) waking up during this delay otherwise it may cut my delay short!Can this be done using interrupt priorites or are they not considered for wakeup?Using STM32L051Any ideas?

Posted on May 12, 2017 at 17:16Hi.I am working with the STM32F767 and configuring the Ethernet RMII interface.    The Ethernet PHY has an Rx Error output, and I'm not sure if this must be connected to the STM32.STMCube when configuring the Ethernet RMII interface doesn't allow selecting 'Activate Rx Err signal' .   The Rx Error option is greyed outIs this RMII signal required back to the STM32?How is it configured in STMCube or manually, or where can I find this information?For comparison, the STM32F746 Discovery board has the Rx Error signal wired back to the STM32 on BGA pin PG2, which only lists alternate functions FMC_A12 and EVENT_OUT.    Neither are RMII functions?Thanks.

Posted on April 29, 2017 at 04:09OK, I am sold on STM32 big time. The devices I am using are on a development board, but it's the STM32F103C8T6 at the core. It is the same device used to program using STLINK V2 from a discovery board.When I can program this device, I plan to production run my own board using this device. What I am having lots of issues with is programming the device with other than the Arduino IDE. I want to use Eclipse on a Windows 10 machine, and maybe use my home Debian Linux server but it has no GUI. I do not want to CLI or Command Line Interface this board for now.I have gone through numerous tutorials and posts about using OpenOCD with Eclipse, but nothing I have followed has worked.I am using a STM32 discovery board to program my STM32F103C8T6 and it works fine with Arduino IDE. I want to break out of the Ardiuno IDE though and use Eclipse. I am interested in using my Eclipse Neon 3 build to program everything I have embedded that supports SWD.I don't want