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Posted on June 03, 2018 at 21:53I've used the VCP with a ST32F746 Discovery board, which worked without problems.I now have a Nucleo-H743ZI and I cannot get it to work.I use Windows 7The virtual com port shows up in device manager as COM8.  I can open COM8 with PuTTY, but the application running in the board appears not to send anything.  When I remove the USB plug, device manager shows COM8 disappears and when I plug it in, COM8 shows up again.In the application, I am using USART3 as described in the Nucleo-144 manual.  I send data using the HAL_UART_Transmit() function with the handle address of &huart3.I know the code is running because the loop sends data and a 200 mSec HAL_Delay() with a LED toggle in the loop.  The LED toggles, so I can see that the program is running.  Just no data makes it to the PuTTY screen.The files for the project were generated as a makefile project with STM32CubeMX with my code added into main where the 'infinite loop' sectio

Posted on May 06, 2014 at 02:22Hello everyone I need to use USART2 from my STM32F3 but I can't make it work. Here is my code. If someone can find my error please help me. &sharpinclude ''stm32f30x.h'' /**************************************************************************************/ void RCC_Configuration(void){  /* Enable GPIO clock */  RCC->AHBENR |= RCC_AHBENR_GPIODEN;   /* Enable USART clock */  RCC->APB1ENR |= RCC_APB1ENR_USART2EN;} /**************************************************************************************/ void GPIO_Configuration(void){   /* Connect PD5 to USART1_Tx */  GPIOD->MODER |= 2 << ( 5*2 ); // [ 9:8 ] MODER4[ 1:0 ] = 10b Alternate function on  // PIN C4 //GPIOC->OTYPER |= 1 << ( 5*1 ); // [ 4 ] OT4 = 1 Output as open drain GPIOD->OSPEEDR |= 3 << ( 5*2 ); // [ 9:8 ] OSPEEDR4[ 1:0 ] = 11b 50 MHz High-speed on PIN C4 //GPIOC->PUPDR &= ~( 3 &l

Posted on March 08, 2018 at 10:32 Hi, Do you have an example of CAN BUS Communication can be done with the current version HAL and CubeMx? Regards Ramazan #can-bus Note: this post was migrated and contained many threaded conversations, some content may be missing.

Posted on June 01, 2018 at 11:07I'm working on a STM32F7 project nad like to imporz it ot VisualGDB. I have to generate a *.GPDSC file, but the button is not higliehgted in CubeMX. How I get it highlighted?Martin

Posted on June 01, 2018 at 10:54Hi there,we are now facing a new chapter of progress for our sensor. Our sensor generates data (8bit arrays) and they want to be stored on the device. On our custom board we built-in a QSPI-Nor Flash memory (IS25WPXXX256D) connected to the QSPI bus of the STM32F746VG like on the respective discovery board.Our distributor told us about this combination of tools to store the data:Usage of FreeRTOS, FatFS and USB mass storage (everything middleware) with wear leveling algorithm to increase lifetime. But we think this sounds like much overhead for our little sensor. Currently we are not using any OS and we want to keep it like that. So what would be the best way to read from and write to the memory without having an OS? Also is there a more simple solution for the data management with a lookup table or something like that instead of using FatFS?I guess we are not the only ones facing this issue. I think the qspi-nor flash market will grow fast the next

Posted on May 31, 2018 at 15:48Archive addition leading to Reset.Now its failing in SystemClock_Config.And entering to WWDG_IRQHandler() at startup_stm32l4r5xx.s:132 0x8009dc0Failing at RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; RCC_OscInitTypeDef RCC_OscInitStruct = {0};♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯&sharpin Debug After completing the above 2 lines enter to reset♯♯♯♯♯♯♯♯♯---->>>>>>>>>>>/* Enable voltage range 1 boost mode for frequency above 80 Mhz */ __HAL_RCC_PWR_CLK_ENABLE(); HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1_BOOST); __HAL_RCC_PWR_CLK_DISABLE();/* Enable MSI Oscillator and activate PLL with MSI as source */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI; RCC_OscInitStruct.MSIState = RCC_MSI_ON; RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI; RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE

Posted on June 01, 2018 at 05:43what the advantage and convienient of STM32CubxMX  generate Code in keil5 compare to classic library? Is there some documents for user about STM32CubxMX  generate Code ? The principle of STM32CubxMX  generate Code is ?#stm32cubeprogramer

Posted on May 30, 2018 at 01:15I make the small project for F746 Discovery with STemWin (small test window with button) for KeilAfter the project is compiling & the start  - black screen.void GRAPHICS_Init(void){/* Initialize the GUI */GUI_Init();WM_MULTIBUF_Enable(1);/* Enable the multi-buffering functionality *//* Activate the use of memory device feature *//* USER CODE BEGIN WM_SetCreateFlags *///WM_SetCreateFlags(WM_CF_MEMDEV);/* USER CODE END WM_SetCreateFlags */}I am a comment line//WM_MULTIBUF_Enable(1);An image appears on the screen after this.Why does not  WM_MULTIBUF_Enable(1)  work?#stemwin #cubemx #multibuf

Posted on May 31, 2018 at 19:43I'm using CubeMX and don't see a way to enable the EXTI0 IRQ.  I'm assuming I need to have that interrupt enabled in order to use the PA0 pin as a wakeup pin.I've set that pin to SYS_WKUP1 in the pin configuration.  What else do I need to do?Thanks.

Posted on May 31, 2018 at 16:19hello, can you help me please, to have in assembler an array of more then 16 bytes. i tryed this 'table dc.b  $ff,...........$FF,' but it just accept max 16 bytes, my question is how can i reach for example 255 bytes , many thanks#

Posted on May 31, 2018 at 12:29When I compile the STM32L4R5ZI BME680 libary, I got the error message of use VFP register arguments,Can anyone let me know how to fix  inside the AC6 SW workbench?ThanksPhani

Posted on April 29, 2018 at 17:21Can I used CR95HF as Tag?I have a host(MCU) connected with RFID, with this Can I read content using Mobile NFC reader from MCU+RFID setup

Posted on May 30, 2018 at 20:58Hi all,     I have a really weird problem, no matter what I do the M24SR creates a 1s sqaure wave on the GPO pin and when I say 1 second it is excatly 500ms off and 500ms on.  I have set the GPO to be HIGH Impedance for both RF and I2C comms and it still does it, I have killed all power to it and then re-applied it and same difference. Its like I've managed to discover a test mode which is undocumented as far as I can tell. Has anyone found this before and if so how can I get the device out of this mode?  please find first bit of the system file data attachedThanks for lookingLuke

Posted on May 30, 2018 at 11:15Hi there, I am new to this community and recently started using STM32 mcus. There is still alot I do not know about this subject so please bear with me. I am trying to get familiar with using these mcus and would therefore makea simple datalogger using the STM32F072RBT6 in combination with the ADC MCP3903.While I found a library for arduino, I could not find anything for STM. http://www.kerrywong.com/2014/05/10/mcp3903-library/  -Does such a library exists? If not, Is it possible to convert it so that it can be used in the described combination?-If that does not work either, do you know of a different ADC with similar capabilities where libraries already exist?Thank you very much for your time and help.

Posted on May 01, 2018 at 22:37Hi,We are working with the CR95HF chip using SPI protocol.We get the correct response for echo, protocol set (1443-A) and IDn.However for a continuous SendAndRecv command with the value 0x04022607 we get the response 0x8300 which is unknown instead of 0x8700 since there is no tag in the field.Any recommendations with this issue ?Regards,Sid

Posted on May 31, 2018 at 03:52I'm currently using SPC560B-DISOur company chose SPC560B50 for mass product but i cannot select SPC560B50 on the list of SPC5 studio Platform Setting RLAHow can i set up environment for SPC560B50 ?

Posted on May 31, 2018 at 10:53i am not able to u understand the API, so can get code or sample code to interface vl53xl1 with ATMEGA88pa

Posted on May 30, 2018 at 12:18Good morning to everyone,I am developing a low power application on STM32L151RET6, the clock is generated by MSI @4.194 MHz. In this configuration I am experiencing some strange behaviour when I use the ADC synched by Timer4, in fact the resulting sample frequency seems not correct and if I change the source clock from MSI to HSE+PLL @6MHz the ADC even doesn't start (no ADC callback is invoked).If I configure the clock configuration using CubeMX (latest version 4.25.1) surprisingly it warns me that APB1 clock must be >= 10MHz.If I look at the STM32L151RET datasheet, table 13, paragraph 6.3.1 (page 61, rev.9) the section 'General operating conditions' reports that the min and max values of APB1 clock frequency should be from 0 to 32Mhz.So, is there a real limitation on minimum APB1 clock frequency? I read again the STM32L1X Reference Manual but nothing I could find out more.Thank you in advance.

Posted on May 04, 2018 at 17:06I'm using a STM32L461VGTx and am trying to implement the SDMMC peripheral to read and write to a SD card using DMA. I've adapted CubeMX FatFs_uSD_DMA_Standalone example to my project which uses a simpler, custom file system. The problem I'm seeing is this: I can get DMA2 Channel 5 to work but not DMA2 Channel 4. I've set up both DMA channels using CubeMX with the following settings: Priority: LowDMA Request Settings: Mode: NormalDMA Request Settings: Increment Address: Memory checkedData Width: Peripheral: WordData Width: Memory: WordI've tried swapping the DMA channels assigned to SDMMC Rx and Tx, and that doesn't help: it's always DMA2 Channel 4 that does not work regardless of whether it is handling Rx or Tx.Specifically, I am calling HAL_SD_ReadBlocks_DMA or HAL_SD_WriteBlocks_DMA and waiting in a while loop for the operation to complete. The conditions I'm waiting for are: HAL_SD_GetState != HAL_SD_STATE_BUSYHAL_SD_GetCardState == HAL_SD_CARD_TRANSF

Posted on April 07, 2018 at 03:44I am working on a project with stm32l432kb. It uses 8 MHz external clock in order to achieve 80 MHz system clock. I've configured clock with the Cube. The diagram shows system clock at 80 MHz, nevertheless the real clock seems to be about 16 MHz. Reading clock with  HAL_RCC_GetHCLKFreq() gives value of 15875000. I've verified that the defined HSE_VALUE is 8 MHz. Here is the Cube generated code for clock configuration:void SystemClock_Config(void){RCC_OscInitTypeDef RCC_OscInitStruct; RCC_ClkInitTypeDef RCC_ClkInitStruct; RCC_PeriphCLKInitTypeDef PeriphClkInit;/**Initializes the CPU, AHB and APB busses clocks */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLN = 40; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV7; RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2; RCC_OscInitSt

Posted on May 27, 2018 at 18:12Hi, I'm using an LIS3DSH in a case where I want to periodically (say once every 50 milliseconds) get the most recent X,Y,Z position of the accelerometer and perform a calculation.My current approach is to just set a timer on my MCU to interrupt every 50 milliseconds.  During this interrupt routine I simply query the OUT_X, OUT_Y and OUT_Z registers of the LIS3DSH and then immediately perform my calculations.I've configured the block data update value (in register CTRL_REG4) on the LIS3DSH to 'continuous' and I'm not using the FIFO feature either (FIFO_CTRL = 'Bypass mode: FIFO turned off').  Additionally, I've configured the output data rate (in register CTRL_REG4) to 100 Hz.  Am I correct to believe this will result in the OUT_X, OUT_Y and OUT_Z register values continually being updated with the very latest accelerometer position data every 10 milliseconds?If so, this would make a worst case scenario of the X, Y, Z pos

Posted on May 28, 2018 at 17:21Hello ST All.I have a NUCLEOL476RG and i have some troubles trying to read a battery level using ADC.I made a voltage divider partitor to get 3.3V starting from 14.1V.1)  using 162K resistor + 50K resistor the adc read 2.9v2) using 68.8k + 20.78k the adc read 2.6v.Using multimeter on partitor in both read 3.20v .If i read 3.3 from Nucleo (CN7  pin 2 or 4) adc read correctly.please, Anyone may helm me with hints?Regards,Carmelo

Posted on May 28, 2018 at 12:46Hi All, I have tried to connect my custom target board with ST-link/V2 ISOL.when I run STM32 ST-Link Utility, it looks OK, setting is captured as followsafter connect 20 pin JTAG cable to my custom board, STM32F103RF with empty flash.(I haven't flash it yet)few seconds later, setting is changed as follows,after error, I have to disconnect and reconnect USB cable connected to PC, and re-run ST-link utility.Would you please let me know what is wrong with my setting or connection ?FYI, ST-link/V2 is updated with latest firmware.Thanks in advance.Best Regards,Hae Ryong

Posted on January 27, 2018 at 08:16Every project generated in CubeMX with Truestudio as the target fails.The project generates ''Virtual'' folders in Drivers but the contents of the folders are missing. Compilation fails due to missing HAL_ driver source.Also generates a ''Virtual'' folder called Application but that folder does not exist. What is the purpose of it?

Posted on March 25, 2018 at 12:43Was attempting to generate a project in CubeMX for the STM32F769I-Disco board for the Atollic TrueStudio and was greeted with this:Did I miss a step?