Solved

Posted on May 24, 2017 at 11:06The last driver for L1, version 1.7.0 contains this error when trying to compile projects in OpenSTM32 IDE where I replaced the HAL driver by hand. So I had to revert to 1.6.0 version. stm32l1xx_hal_rtc.c:424:38: error: 'RTC_CR_BKP' undeclared ...#error #driver #stm32l1 #openstm32 #170

Posted on May 30, 2017 at 18:56Hi All,I've got a  Nucleo-F103RB, and have been able to successfully implement an SPI interface to an FPGA, using the software to control the flow of the SPI.I want to now move this across to the DMA, such that the DMA transmits and reads the data from the SPI. I've gotten the transmission part of it working correctly; data goes across correctly and the FPGA recognises it.The issue that I have is the STM DMA reading the data, it doesn't come in the correct format:The data from the FPGA is in 8 packets (1 byte each), with the 3 MSB bits indicating its position within the sequence ('000' is first, '001', second, etc.), when I read the data that the DMA has received it doesn't follow this sequence it's all over the place (I know that the FPGA is transmitting the data correctly, as I've gotten this working in software). So I wonder if there are some conflicts with using the DMA, as to read data via SPI, you need to transmit data.Below is a copy of

Posted on May 29, 2017 at 17:01I try doing usb device with two bulk endpoint IN/OUT.All work fine but i lost every first packet on start device. Every new packet work fine, and work fine if i unplug and plug usb cable. And i recevie num of bytes in packet but not his content.Code on STM32:USBD_ClassTypeDef USBD_SPI = {    USBD_SPI_Init, //USBD_MSC_Init,    USBD_SPI_DeInit, //USBD_MSC_DeInit,    NULL, //USBD_MSC_Setup,    NULL, /*EP0_TxSent*/    NULL, /*EP0_RxReady*/    USBD_SPI_DataIn, //USBD_MSC_DataIn,    USBD_SPI_DataOut, //USBD_MSC_DataOut,    NULL, /*SOF */    NULL,    NULL,    USBD_SPI_GetHSCfgDesc,    USBD_SPI_GetFSCfgDesc,    USBD_SPI_GetOtherSpeedCfgDesc,    NULL, //USBD_MSC_GetDeviceQualifierDescriptor,};uint8_t buff[100];uint8_t USBD_SPI_DataOut(USBD_HandleTypeDe

Posted on March 31, 2017 at 15:06Hi,   I have a STM32L071KB Chip Inserted in a  STM32F031K6-Nucleo Development Board.   I am trying to Get into I2C Bootloader mode by Setting BOOT0 Pin to HIGH.   But When I Try to detect the I2C Slave Address (0x42), SCL pin is driven low, and timeout error occurs.   TIA. P.S.:I2C1 Bus is Working Normally when I ran the Example Code in ''\Examples\I2C\I2C_TwoBoards_ComIT'' I also tried UART Bootloader, which is also Not working Similarly, but Works in the Example Code in ''\Examples\UART\UART_Printf''. #stm32l0-nucleo #i2c-bootloader #stm32l071 #stm32l071kb

Posted on May 30, 2017 at 10:07 hi everybody I'm using stm32l151 and I want to use usb peripheral in cdc mode. I used stm32 cubeMx to generate the project. when I connect the boar to PC, I can see the VCP in device manager.however I can't sen any data to PC. The function CDC_Transmit_FS() always return USBD_BUSY. can anyone help me? Here is my code: while (1) { CDC_Transmit_FS(Buffer, 6); HAL_Delay(2000); } I only added the above code to the project created by STM32cubeMX but it didn't work. Thanks

Posted on May 30, 2017 at 09:13Hi, I'm looking for a spatial component (ESA qualified would be better) which is equivalent to an Eight Darlington Array like the series ULQ280X. Thank you ! Have a nice day ! 

Posted on May 29, 2017 at 16:41 Hello, I am developing an application using a CAN bus and 2 differentMCU: STM32F407 and STM32F The code for the STM32F407 works fine. Icanseedata on the bus using an oscillo. However, the STM32F302 does not ack the message and does not transmit either. The STM32F302 works in loop back mode, but in normal mode, I cannot get it to send data on the Tx line. the tx line is always high and the Tx Mailbox just stays full. I suppose the problem is in the GPIO initialization, but cannot find the problem :( Any help is welcome. void CAN_Config() { CAN_InitTypeDef CAN_InitStructure; GPIO_InitTypeDef GPIO_InitStructure; /* Enable CAN clock */ RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1, ENABLE); /* Enable GPIO clock */ RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE); /* Connect CAN pins to AF */ GPIO_PinAFConfig(GPIOA, GPIO_PinSource11, GPIO_AF_9); GPIO_PinAFConfig(GPIOA, GPIO_PinSource12, GPIO_AF_9); /* Configure CAN RX and TX pins */ GPIO_Ini

Posted on May 15, 2017 at 10:40Hi Forum,I'm using the stm32f091RCt6, (LQFP64) to set up USART4Kind RegardsBob  USART_InitTypeDef USART_InitStructure;  GPIO_InitTypeDef GPIO_InitStructure;  NVIC_InitTypeDef NVIC_InitStructure;  // Enable GPIOC clock   RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);   // Enable USART3 APB clock   RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART4, ENABLE);        // Connect pin to Periph  GPIO_PinAFConfig(GPIOC, GPIO_PinSource10, GPIO_AF_0);   //  USART4 TX  GPIO_PinAFConfig(GPIOC, GPIO_PinSource11, GPIO_AF_0);   //  USART4 RX   // Configure pins as AF pushpull   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10 | GPIO_Pin_11;  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;  GPI

Posted on April 13, 2017 at 20:38Has anyone else run into this problem? If I start a new project for the STM32F746G-DISCO board, the pinout view is glacially slow. It doesn't respond well to input, for example clicking any of the drop down menus in the peripheral configuration takes upwards of 20-30 seconds to display the menu.I'm on a 2016 Macbook Pro with macOS Sierra.

Posted on February 02, 2017 at 11:51Hello,in thehttp://www.st.com/content/st_com/en/support/resources/resource-selector.html?querycriteria=productId=FM141$$resourceCategory=technical_literature$$resourceType=programming_manual the latest update field is empty. With the lastest update date given, a search for what has changed would be easy. Without that date, one has to navigate to the product and compare the document revision there with the the local revision. Is there another way to see what documents changed?Thanks

Posted on May 26, 2017 at 18:11 I'm use STM32F412RGT. IDE is IAR. if(__HAL_I2S_GET_FLAG(&hi2s3, I2S_FLAG_FRE) && __HAL_I2S_GET_FLAG(&hi2s3, I2S_FLAG_CHSIDE))  {  __HAL_I2S_DISABLE(&hi2s3);  while(HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_4) != GPIO_PIN_SET)//WS  {  asm('nop;');  }   uint32_t tmpreg = hi2s3.Instance->SR; __HAL_I2S_ENABLE(&hi2s3);  }After executing this code, I again get a Frame error flag (FRE)#stm32f412rgt #i2s

Posted on May 24, 2017 at 11:04Here the procedure : - Join -> Join OK - Uplink , a downlink is send by the networkat this point sometimes (near 25%), no more uplink is send after.I did not success to reproduce this problem in debug mode to understand what the problem is.... :(Is someone already see this problem ?i am using the i cube lrwan v 1.1.0 software.#i-cube-lrwan

Posted on May 26, 2017 at 07:07Hello,I am developing one application with high speed inputs and outputs.Peripheral requirement for application are as below:1. 4 PWM output with resolution 32bit and 2MHZ clock OR external clock source for PWM with 32bit resolution2. 8 external interrupt pins. Dedicated interrupt request for each interrupt3. One UART(for programming)4. One I2C (100kHz)5. Clock source : external crystal support, clock should be higher than 40MHz.6. Pin count : 32 to 487. Flash : 32kB to 128kBIs any microcontroller available with these features?

Posted on May 24, 2017 at 03:21Hello,I would like to use an USART with DMA (peripheral to memory) with FIFO enabled in a circular mode on the STM32F205.My stream of data is pretty random and I would like to process the memory buffered data on the fly.The problem is that the NDTR value is taking into account also the data in the FIFO, so that I can not know how much data is in the memory.Is there any way to know the exact amount of data in memory and the exact state of the FIFO on the fly in the program?Kind regards,Greg

Posted on May 24, 2017 at 11:49Hi, I've got this from the F446 data sheet.I hope that I can run TIM2 at 180MhzHowever, it seems that APB1 peripheral CLK can only run at 90Mhz as the cubeMX indicates as followed:So can I really make TIM2 run at 180MHz or not?!Thanks for reading!,Zt #tim2 #stm32f4 #clock-configuration #cube-mx #stm32f446

Posted on May 24, 2017 at 18:24For my design i am already using STM32F429BI--LQFP208 package, Now i am looking to replace this with STM32F777BI-LQFP208, both are pin compatible..Question: In the data sheet of STM32F777BI Its mentioned that GPIO'S=159 in the page number 17,but in STM32F429BI Its mentioned that GPIO'S=168 in page number 16,so what is the difference.The above one is STM32F777BI,http://www.st.com/content/ccc/resource/technical/document/datasheet/group3/8a/34/ed/7e/4c/04/4b/7a/DM00225424/files/DM00225424.pdf/jcr:content/translations/en.DM00225424.pdf The above one is STM32F429BI,http://www.st.com/content/ccc/resource/technical/document/datasheet/03/b4/b2/36/4c/72/49/29/DM00071990.pdf/files/DM00071990.pdf/jcr:content/translations/en.DM00071990.pdfBUT in the front page of the datasheet -product description its mentioned i/o's 168 in both of the data sheetand also in the ST.COM  its mentioned i/o's 168 I/O'SSo my question is what is this differen

Posted on May 23, 2017 at 18:02I dont know I must be wrong but I didn't find function call to change the dutycycle of a pwm so I wrote this and I added it to stm32F3xx_hal_tim.c/**  * @brief  Set the PWM DutyCycle.  * @param  htim: TIM handle  * @param  Channel: TIM Channels to setted  *          This parameter can be one of the following values:  *            @arg TIM_CHANNEL_1: TIM Channel 1 selected  *            @arg TIM_CHANNEL_2: TIM Channel 2 selected  *            @arg TIM_CHANNEL_3: TIM Channel 3 selected  *            @arg TIM_CHANNEL_4: TIM Channel 4 selected    * @param  v: value of dutycycle  * @retval HAL status*/HAL_StatusTypeDef H

Posted on May 22, 2017 at 15:35The STM32L471 Errata document states that:  An overconsumption can appear on VDDA in the following conditions:• a voltage VPAD is applied on PA3 or PB0 with VDDA+ 50 mV < VPAD < VDDA + 600 mV ...Our application uses PB0 as a GPIO output with a voltage in the range described above.  Is that matching the condition 'a voltage VPAD is applied'?

Posted on January 04, 2017 at 10:17Anybody knows that H7 mcu's and development boards marketing day ? Any idea or certain info about that ? When we can get h7 eval boards briefly ? Thanks#stm32h7

Posted on May 05, 2017 at 16:11Hi community,I'm using stm32f769i-disco to make a serial communication with a Vacuum Transducer (925 MicroPirani).The 925 transducer can provide pressure mesurement output as RS232 digital value.Pressure request :Query: @253PR1?;FFQuery reply: @253ACK9.00E+2;FFThe discovery card transmit the request bufftr[30] = @253PR1?;FF via the HAL_UART_Transmit(&UartHandle, bufftr, 30, 100)and the 925 transducer send the pressure value that is to say that the discovery card receive the reply for her request via HAL_UART_Receive(&UartHandle, buffrec, 30, 100); buffrec[30]=@253ACK9.00E+2;FF Then I use double pression to get just the bit 7,12,13 of the buffrec and finally I display this value in the LCD.Here is my code:int main(void){  MPU_Config();CPU_CACHE_Enable(); HAL_Init();SystemClock_Config();/* Enalbe clock for USART6 and GPIOC */__HAL_RCC_GPIOC_CLK_ENABLE();__HAL_RCC_USART6_CLK_ENABLE();__HAL_UART_ENABLE(&UartHand

Posted on April 14, 2017 at 11:32Hello,In order to have more than 6 services on my BlueNRG-MS device, I wanted to create a service that will add/remove the other ones.At the beginning, it worked well, I could choose the services I wanted to activate but quickly, a problem appear. Indeed, it seems that the memory is not freed after deleting characteristics and services : after few adding/removing, I can't anymore add service because of a out of memory error.I use the aci_gatt_del_char and aci_gatt_del_service functions to remove a service but is there something more to do ?Thanks,Julien#bluenrg-ms #ble

Posted on May 19, 2017 at 14:32Hi,I have an STM32F1 and am running the UART printf example from the standard peripheral library. I've modified the code to allow me to use USART3 (I'm using a custom pcba and only USART3 is wired to a connector mounted on the board). I've connected USART3 to a serial terminal on my computer (RealTerm) using an FTDI USB-UART converter. I am successfully receiving data from the UART but the data is incorrect and the terminal complains of a framing error. I am transmitting a single character 'T' but am receiving unknown data:I am convinced that there is a problem in my code, most likely in how I have configured USART3, but am not sure where. I have checked that my baud rate etc is good in both the code, cable and terminal.Can anyone help me with this? What is the most likely reason I am not receiving the correct data?Cheers,Tony#stm32-f1 #framing-error #usart

Posted on May 22, 2017 at 16:07Hello,the pinout view of Cube is good for planning pin assignment. However I don't see an item for SWD/JTAG to reserve the needed pins.  Do I miss something? Otherwise Cube should get entries for JTAG/SWD.

Posted on May 18, 2017 at 17:51Hi all,In my application I am using M24SR02 where the same part of the chip is being read through NFC and I2C interface at the same time. NFC reader is working in infinite loop and does two things:1) Reads 0x10 bytes from 0x0097 offset2) Issues SendInterrupt command to toggle GPO pin on M24SR02MCU that is driving I2C interface does the following in infinite loop:1) waits for GPO toggle2) issues KillRFsession command over I2C3) issues NDEF Tag Application Select,  NDEF Select commands4) Issues ReadBinary command to read 0x02 bytes from 0x0000 offset to get NDEF message length. The returned length is 0xE55) Finally issues ReadBinary command to read 0x10 bytes from 0x0097 offset.Most of the time ReadBinary works fine returning correct data. Sometimes it returns 0x6A 0x86 status meaning 'Incorrect P1 or P2 values' even if ReadBinary command is always the same (checked with oscilloscope). The same thing happens when I use ExtendedRead

Posted on May 19, 2017 at 17:25Hi!When I flash a .hex or .bin file with a ST-LINK V2 device on my STM32F4 microcontroller (with ST-LINK utility), the program only works if both the ST-LINK V2 and my MCU board stay connected to the computer (through a USB cable). Whenever I unplug one of them the program just flashed on the board does not run anymore.Does anyone have any idea of what is happening ?Thanks for your help!#st-link #flash-stm32 #st-link-utility