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Posted on July 04, 2018 at 01:25I am writing a custom application that transfers bytes of sensor information from my own custom board to an app I am basing off of the ST25SDK (specifically V1.2.0). My application was failing to read the mailbox (yes, it's enabled) through the RF channel, failing with an 'ST25SDK: transfer finished with error message'. When I download the ST25AndroidApp and compile from source, I also ran into this same error message when attempting to read a Data transfer from the tag. In looking at my debug output, it appears to be trying to read 1 less byte than I write in my embedded application. More details: So my application writes 18 bytes of data into the Fast Mailbox. When I debug the Read from Tag command, the following line appears to read my 18 bytes written by the embedded (I2C) app. int length = mST25DVTag.readMailboxMessageLength();However, further down that function, when I step further into the function and enter into mST25DVTag.re

Posted on July 05, 2018 at 18:47Hi,I just generated two identical PWN pulses using two separated identical timers in the STM32F407 chip. After the MCU resets or a momnet after the MCU startup, both PWM pulses overlap each other as naturally should be (First picture).But as time passes (few seconds) one of the pulses starts to make phase shift (Second picture). After the MCU reset, both pulses come together and overlap again.It is weird isn't it?!!!! This could be a bug in the HAL drivers. I have used  HAL_TIM_PWM_Start() for the both timersas I mentioned everything on both timers are identical which also leads to an identical frequency. Therefore the reason of this gradual phase shift must be investigated.

Posted on July 03, 2018 at 16:10If you do not migrate a project from 4.25 to 4.26 then the code generated will be buggy. E.g The copyright header in the main.c is missing as well as the functions like MX_GPIO_Init().#regression-testing-overrated #stmcube-bug

Posted on July 04, 2018 at 12:51Hi EveryOne.Hi have a problem with PWM on my Stm32f303k8, nucleo board.Hi searched on this forum, but I not find an answer that solve my problem.So: I need to have a pwm output on PB_1 Pin, and, to do this, I've used cubeMX to generate the code:This is Tim.c#include 'tim.h'/* USER CODE BEGIN 0 *//* USER CODE END 0 */TIM_HandleTypeDef htim1;TIM_HandleTypeDef htim2;/* TIM1 init function */void MX_TIM1_Init(void){  TIM_MasterConfigTypeDef sMasterConfig;  TIM_OC_InitTypeDef sConfigOC;  TIM_BreakDeadTimeConfigTypeDef sBreakDeadTimeConfig;  htim1.Instance = TIM1;  htim1.Init.Prescaler = 7900;  htim1.Init.CounterMode = TIM_COUNTERMODE_UP;  htim1.Init.Period = 999;  htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;  htim1.Init.RepetitionCounter = 0;  htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;  if (HAL_TIM_PWM_Init(&htim1) != HAL_OK)  {    _Error_Handler(__FILE__,

Posted on July 01, 2018 at 15:32Dear all:     Dose cubemx support stm32h7 using other phy ic, not only using lan8742, like stm32f4. The first pic is cubemx support stm32h7,the second pic is cubemx support stm32f4,the different between two pics is the page ''advanced parameters'' only showed in stm32f4. Thanks.#stm32h7-ethernet

Posted on June 28, 2018 at 17:07I found an issue with the latest (and updated) STM32CubeMx when generating code both for SW4STM32 and for  MDK-ARM relate to STM32F746 board.Changing 'LSE Drive Capability' from ''LSE oscillator low drive capability' to 'LSE oscillator high drive capability' doesn't produce any changing into the code generate by STM32CubeMx.To enable ''LSE oscillator low drive capability'  I have to add to the code the lines:  HAL_PWR_EnableBkUpAccess();  __HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_HIGH);But when I use again CubeMx to generate the code it remove my code...Info about versions use by me.   CubeMx version: 4.26.0   STM327CubeF7: 1.11.0Ciao.Gianluca#stm327cubef7 #lse-startup

Posted on March 21, 2018 at 09:01Hello,i have a STM32F051 and use the independent watchdog.I would like the IWDG counter to stop if the core is halted.I set the DBG_IWDG_STOP in the DBG Modul, but when i stop the core with the debuger my mcu still goes in reset.I tried setting the bit with µVision IDE, with HAL driver code and with code writing to the register directly.Best Regards,Eggers

Posted on June 26, 2018 at 00:26Hi,I am trying to dynamically configure the interrupt threshold on the LIS2MDL. It seems that sometimes after setting a new threshold, the old threshold still is in effect and causes an interrupt transition on the output pin. Is there any minimum (settling) time required after setting a new threshold on the LIS2MDL?Thank you.

Posted on June 15, 2018 at 08:14The CubeMX, and associated Flash programming tool doesn't want to install with the latest version of OSX (High Sierra).  Is this a known issue or am I doing something wrong...?

Posted on July 03, 2018 at 12:16Dear ST team,I am working with the ST25DV chip (I use ST25DV_Discovery_Ant_C5 hardware conected to my processor with wires). VDCG is connected to VCC. LPD is High while the device is not active. I set LPD Low when a GPO nterrupt is triggered before communicating with the ST25DV. I want to get an interrupt when a message is posted into the mailbox.If I only configure the GPO_CTRL_DYN register with RF_PUT_MSG_EN and GPO_EN bits to 1, I never get an interrupt if post a message into the mailbox while LPD is High. (of course, If I set LPD Low beforehand and never reset it, I get a GPO interrupt and I receive the message).If I set all bits of GPO_CTRL_DYN to 1 with LPD High, then I get an RF_ACTIVITY interrupt at the time when the NFC Reader is near to the ST25DV, but I never get an interrupt when I post a message in the mailbox. is it normal ? (If so, I can set LPD Low when the ST25DV detects RF activity so that I will receive the messages posted in the mail

Posted on July 02, 2018 at 19:20Hi,I'm working on a STM32F407 chip and I have enabled one of its ADCs and I read the values by the DMA. I mean using this HAL function: HAL_ADC_Start_DMAis there anyway to measure the ADC sampling time or conversion time? (according to the datasheet it must be around 2.4Msps for each ADC).I don't mean by calculations, I mean measuring it in the live debugger or something like that. #adc-speed #adc-sampling-time #dma-adc #stm32f407

Posted on July 02, 2018 at 00:39Hello ST community ,I am Chayma a student of electrical engineering in national school of engineering of tunis . I am doing currently my Internship about DC motor PID regulation using STM32F407VGThe project of the internship is about PID regulation of the acceleration (position or velocity) of a DC motor using the accelerometer sensor (LIS302DL) existing in the STM32F407VGActuallay i stuck in how can i developpe a code that can do it especially the link between duty cycle and the regulated value of acceleration.I really need a quick help.thank you ,Best regards.#duty-cycle #dc-motor #accelerometer-lis302dl #stm32f4 #acceleration #stm32f407vg #pid

Posted on June 27, 2018 at 23:15Hello,I am developing a custom board that mounts a STM32F469 MCU. The board is very simple, and the circuit embeds only the main 8Mhz crystal and the RTC 32.768 one. No embedded peripherals except for a couple of status LEDs and a MUX 74*138 chip used to select memory banks on an expansion BUS based on the FMC.Crystals are more or less equivalent to the 469 Discovery, they are very close to the CHIP and the capacitors are the ones required by the crystals. ''Electrically'' speaking everything should be correct since the board works fine.The board mounts several headers to connect peripherals, so I can say that this is a minimal STM32F469 system. I have developed many drivers for this system so far, SRAM on FMC, SD over SPI, Usart etc, now I am fine tuning a VGA driver. Each driver can be included or not at the startup, so, for now, I am fine tuning the VGA driver and in this specific case is the is the only one started in the project.All the firmwa

Posted on August 22, 2014 at 23:45I have been working with the CR95HF chip for about the last month. I need to be able to use the Tag Detect version of the Idle state for my application. However, when I attempt to run the Tag Calibration sequence, I get a Wake Up response of 0x02 (value of the third byte) during the second step when my DACDataH value is 0xFC, which according to the Application Note, AN3433, is an error state. I would assume it was a problem with my matching network or with my receive pins, but the other RF operations I am interested in (inventories, reads and writes) are functional. I have tried changing the value of the Rrx resistors (from 330 ohm to 249 ohm), but if i lower the value, I encounter the opposite problem: I only get a Wake Up response of 0x01 until my value of DACDataH is 0x03 while attempting to calibration and this value clearly doesn't lead to a usable DACDataL value for actual Idle commands. Has anyone else experienced this

Posted on July 03, 2018 at 17:03I cannot communicate my mpu6050 with nucleo-F103RB board via I2C interface. Here is my code, maybe someone could explain me what is wrong.&sharpinclude 'stm32f1xx.h'I2C_HandleTypeDef hi2c;UART_HandleTypeDef uart;void send_char(char c){ HAL_UART_Transmit(&uart, (uint8_t*)&c, 1, 1000);}int __io_putchar(int ch){ if (ch == '\n') send_char('\r'); send_char(ch); return ch;}int main(void){ uint8_t who_i_am=1;SystemCoreClock = 8000000; HAL_Init();__HAL_RCC_GPIOA_CLK_ENABLE(); __HAL_RCC_GPIOB_CLK_ENABLE(); __HAL_RCC_USART2_CLK_ENABLE(); __HAL_RCC_I2C1_CLK_ENABLE();GPIO_InitTypeDef gpio; gpio.Mode = GPIO_MODE_AF_OD; gpio.Pin = GPIO_PIN_6 | GPIO_PIN_7; // SCL, SDA gpio.Pull = GPIO_PULLUP; gpio.Speed = GPIO_SPEED_FREQ_HIGH; HAL_GPIO_Init(GPIOB, &gpio);gpio.Mode = GPIO_MODE_AF_PP; gpio.Pin = GPIO_PIN_2; gpio.Pull = GPIO_NOPULL; gpio.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOA, &gpio);gpio.Mode = GPIO_MODE_AF_INPUT; gpio.Pin = GPIO_PIN_3; HAL

Posted on June 05, 2018 at 13:25I believe I do not violate any forum policy here. I do not want anyone to break any secrets here.I am a hobbyist & STM32 enthusiast but I have never seen any real products where the STM32 was embedded (besides Sony SmartWatch a few years ago, and Primer / EvoPrimer Tools).I think such information might be interesting for many STM32 enthusiasts.If you could share some information about real products where we can find the STM32 MCUs.

Posted on July 03, 2018 at 12:04Hello,I'd like to report a typo in the STM32F4 reference manual, RM0090, in 30.6.1 Status Register (USART_SR), where the default value is 0x00C0 0000. Actually the default value, is 0x0000 00C0, as can be inferred from table 148. USART register map and reset values.Thanks.

Posted on July 03, 2018 at 12:41I try to build and run the 'Test_PIL_IIR_Filter' using Matlab 2018b.I get the following error:### Connectivity configuration for referenced model 'IIR_Filter_int32': STM32 PIL ###### Preparing to start PIL simulation ...Building with 'lcc-win64'.'cp' is not recognized as an internal or external command,operable program or batch file.What could be the cause of this.#SIMULINKWhat should I do in order to run the simulationRegards

Posted on July 03, 2018 at 13:48I’ve setup a DSP application including a F32 FFT that takes on STM32F407 about 5 ms and on a STM32F429 approximately  .5 ms. The clock settings are in both cases the highest possible values (STM32F407 -> 168 MHz and STM32F429 -> 180 MHz) Did I something wrong in case of the STM32F407 or is the performance difference between both the µC that high ?

Posted on June 24, 2018 at 15:54What is the blind range or minimum tag detection distance of ST25RU3993?#blind-range #minimum-tag-distance #st25ru3993

Posted on February 25, 2018 at 14:30Obviously a copy-paste error.JW

Posted on July 02, 2018 at 12:14Hallo.I'm developing an application, using a STM32L433.My device is a SPI Slave that receive, every a fixed amount of time, a 4 bytes long frame on SPI3 port.Since I need a time syncronization with the SPI master, my idea was to enable an external interrupt (EXTI) on the SPI clock pin, to manage a kind of time stamp, leaving the SPI fifo receiving the four bytes.When I was in the 'timestamp' interrupt routine I would have disabled the EXTI interrupt.At the end of processing the four bytes received by the SPI RX FIFO, I would have enable again the external interrupt in the SPI Clock pin.The question is: is it possible that a pin used as SPI Clock, as slave (so the pin, in this case, is an input), triggers even an external interrupt?Thank you in advance.Paolo

Posted on November 23, 2016 at 07:17Hello all, has anyone successfully installed CubeMX 4.17.0 on Mac OSX Sierra (10.12.1)? Every time I doubleclick the install it just bounces and then nothing happens. Any suggestions? #cubemx-macos-sierra

Posted on June 27, 2018 at 11:57hello ,i'm new with NFC i'm using Android st25sdk  i need to read/write fom/to NFC Tag using iso15693 command.my example is read battery voltage (commande= 0x35)i write this code:public Type5Tag mType5Tag;mType5Tag = (Type5Tag) this.getTag();byte[] payload=mType5Tag.readSingleBlock(0x35);is it true what i'm doing?thanx in advance.#iso-15693 #nfc-tag-type-5

Posted on June 29, 2018 at 17:16Hello team,i used CR95HFDll to write comand on the EPROM and read response.Now i want to do this with St25 Android SDK.could you please help me and give me some demo if exist.best regardsAmine#st25sdk #android