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when I run the CAN module in loopback mode - packets transferred to the bus - everything is OKwhen I run the CAN module in silent mode I will receive packets - everything is OKbut when I start the CAN module in normal mode - 15 pulses go out on the TX pin and everything stops ... packets are not transmitted ...what am I doing wrong???I generated the start configuration using:STM32CubeMX 5.6.1Firmwere STM32Cube FW_F1 V1.8.0Atollic TrueSTUDIO Version: 9.3.0 Build id: 20190212-0734I've been in conjunction with both ISO1050 and MCP2551 ...I looked at the bus using a Chinese logic analyzer ....connected to the parallel of RX and TX pinsCode:/* Private define ------------------------------------------------------------*//* USER CODE BEGIN PD */#define TxBroadcastVoltagIdentifier 0x5FF400C#define TxDeviceRegistrationFeedbeckIdentifier 0x5004804#define TxSetDefaultVoltageIdentifier 0x5FF400C/* USER CODE END PD *//* Private variables ---------------------------------------------

Hi everybody, I use chip set ST25R3912-AWLT for NFC design,In PCB layout, i was draw ST25R3912 in main circuit and connect Tx, Rx to antenna use connector.Do i need control impedance trace transmitter and receiver. Thank you,AnhDN

on my board, the voltage on Pin21/ 24 are ~ 0.002v after power-up, it that correct ?here is my schema: Thank you very much!

#include <stdio.h>#include <sys/ioctl.h>#include <fcntl.h>#include <unistd.h>#include <time.h>#include <netinet/in.h>#include <linux/i2c-dev.h>/* NDEF Text Record */unsigned char NDEF_DATA[] ={/*NDEF Text Record*/0x03, 0x0E, //NDEF message, 14 byte message0xD1,       //NDEF Record header: MB = 1b, ME = 1b, CF = 0b, SR = 1b, IL = 0b, TNF = 001b0x01, 0x0A, //type length, payload length0x54,       //Type = Text0x02,       //Language code size0x65, 0x6E, // Language = English, 'e', 'n',/*Payload data = " EEwiki"*/' ', 'E', 'E', 'w', 'i', 'k', 'i',};#define ADDRESS 0x53int main() { int fd;unsigned char buffer[3];unsigned char buffer1[2]; if ((fd = open("/dev/i2c-2", O_RDWR)) < 0) { printf("Couldn't open device! %d\n", fd); return 1; } if (ioctl(fd, I2C_SLAVE, ADDRESS) < 0){printf("Couldn't find device on addres

When can I expect STM32WB35CCU6A BT LE MCA to be supported in STM32CubeIDE?

I've set up the POWERSTEP01 driver in voltage mode, which works nicely. Now I want to use the sensor less stall detection feature to implement sensor less homing. How must the stall_th and also the ocd_th values be dimensioned for this to work correctly.Let's say for example I have a 1.68A stepper and my shunt resistor is 30mOhms. I've configured the hold current to be ~50% of the run current 1.68A using the formulas from application manual.To calculate the voltages used in the register, I use U = R*I, v_stall = 30mOhm*1.8A = 0.054V, which results in stall_th register value of 1, meaning 31.25mV. Is this correct?In general, how big shall the stall and overcurrent values approximately be for a stepper?

Hi,I have designed a 65x85cm 2-turn PCB antenna but I cannot place it close to the damping resistors (I use the ST25R3916 for this). How would the horizontal tracks from the damping resistors to the antenna feed affect its performance, efficiency, field strength and so on? regards,gaston

Is it possible to change the current protection threshold in motor control WB? if yes, how?

Hi,Is there an example code for start with this kit?. I have tried all code proposed(speed ramp with potenziometer) in STMCW but no one works for me, instead the motor profiler works so i think the harware is OK.I created the project in STMCW ,i generated the code in cubbeMX and finaly i opened CUBEMXIDE for compile and download the code on board, but like i alread say the motor do not moves.I hope in any kind of help.Best.

The idea is to 1) Control position - that is to rotate the motor with a desired angle such as 5 degrees, 7 degrees, 10 deg, 13 deg, 20 deg, etc.. 2) Control speed in rpmBut as the motor control based application is new for me, I'm not sure what control algorithm or which solution is best fit for my requirement.I started working on implementing 6 step sequence with PWM based on 3 feedback signals of HALL effect outputs from BLDC motor, which I believe this drives the BLDC motor with no control (open loop).Note: For this, I'm using an evaluation kit (other than STM which is already available with me), but yet to get the other hardware like motor driver card and BLDC motor.To start with, could you please suggest a good approach to build this application:1) Any suitable development kit with BLDC motor position control software, so that I plan to buy it and explore the BLDC software application to achieve solution for my project.2) Request to suggest a reference (an application notes o

My application is very low power, and I need to save power wherever possible. To this end, I do the following:LIS2DE12_WriteReg(LIS2DE12_MEMS_I2C_ADDRESS, 0x20, 0x08);Which basically puts the accelerometer in power down mode. The LIS2DE12_WriteReg basically uses HAL_I2C_Mem_Write.I seem to constantly get a HAL_TIMEOUT returned whenever I try to put the accelerometer in power down mode. I even set the timeout to a high value, and its still the same problem.Inside LIS2DE12_WriteReg , this is what happens:HAL_StatusTypeDef i2c_write_status;   i2c_write_status = HAL_I2C_Mem_Write(&hi2c1, deviceAddress, WriteAddr, I2C_MEMADD_SIZE_8BIT, (uint8_t*)&Data, 1, 10000);   DEBUG_LOG_ACC("I2C Bus Status(A): %d", HAL_I2C_GetError(&hi2c1)); DEBUG_LOG_ACC("I2C Write Status(A): %d", i2c_write_status);i2c_write status always returns HAL_TIMEOUT.Thanks for your time.Tim

HiI am working on changing the frequency of the square signal which comes from STM32F4. I used Timer and ADC simultaneously where I change ARR and CCR1 accordingly to change the frequency. When I use an incremental loop for these values I can get different frequency but When I add ADC (continuous mode) in the fly of the program, the output gives me just one frequency and when I press the reset button with changing variable resistor I get updated value. How can I solve this issue? Is there another method to do that?this is my code:-----------------------------------------------------------------------while (1){AA=HAL_ADC_GetValue(&hadc1);DT=0.5*AA;htim3.Instance->ARR=AA;htim3.Instance->CCR1=DT;}-------------------------------------------------------------------------I will hear from you.Thanks

Hello, support team.In my test board, lis3mdl is connected to lsm6dsox I2C.From above board, I want to read acceleration and gyro at 1667Hz, magnetic at 1kHz.I refer to lsm6dsox_sensor_hub_fifo_lis2mdl.c to implement SW.But It looks like magnetic data is rarely read from FIFO.And maximum speed of SHUB_ODR_ is 104hz.How can I read magnetic data at 1kHz speed?And could you check my configuration? /* Electrical pin configuration */ val.sdo_sa0_pull_up = 0; val.aux_sdo_ocs_pull_up = 0; val.int1_int2_push_pull = 0; val.int1_pull_down = 0; lsm6dsox_pin_conf_set(&lsm_ctx, val);   /* Check device ID */ lsm6dsox_device_id_get(&lsm_ctx, &whoamI); while (whoamI != LSM6DSOX_ID) nrf_delay_ms(10); /* Restore default configuration */ lsm6dsox_reset_set(&lsm_ctx, PROPERTY_ENABLE); do { lsm6dsox_reset_get(&lsm_ctx, &rst); } while (rst);   /* Disable I3C interface */ lsm6dsox_i3c_disable_set(&lsm_ctx, LSM6DSOX_I3C_DISABLE);   lis3mdl_dev

Hello. I'm trying to play a music file using PWM with STM32F1. For this, I saved the sound data in flash memory with appropriate resolution. Using Timer 2 and DMA, I transfer the data to TIM2-> CCR1 register. Sampling Frequency 8 Khz. DMA Circular Mode works fine. As soon as I set up the timer, It write the data to the CCR1 register and I getting the pwm at the out. This way I get a constantly repeating sound. But I have a problem. I want the system to stop after Transfer is complete. For this I am running DMA in normal mode. After the transfer is complete, the DMA TC interrupt continues to come. My init settings and DMA interrupt routines are as follows.void TIM_PWM_Sound_Configuration(void) { TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; TIM_OCInitTypeDef TIM_OCInitStructure; GPIO_InitTypeDef GPIO_InitStructure; DMA_InitTypeDef DMA_InitStructure; NVIC_InitTypeDef NVIC_InitStructure; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); RCC_AHBPeriphClockCmd(RCC_AHBPeriph

Dear experts,I have a problem with stm8s_conf.h file. I download the Standard Peripheral Libraries officially from ST web page. After I put them all into STVD, I mean the .c and .h files, then I compile. The compiler detects that stm8s_conf.h does not exist. I try to check the stm8s_conf.h from SPL and thats true. I could not find the stm8s_conf.h file. So, I have to find it from another sources like github or something else. Back to the question, Is the stm8s_conf.h really exist ?Thank you & best regards,Mahendra

I was struggling for a while to do a deep dissect of the cache behavior of my STM32F7508-DK device.Especially, when accessing SDRAM connected to FMC, the performance behavior was weird(some was much better than the others while the code looked semantically equivalent--even considering architectural components).After digging for a while, I found evidences to believe that the hardware prefetcher maybe the culprit.I found here (https://www.st.com/content/ccc/resource/technical/document/application_note/group0/bc/2d/f7/bd/fb/3f/48/47/DM00272912/files/DM00272912.pdf/jcr:content/translations/en.DM00272912.pdf) that I can turn off the prefetcher by changing the memory attribute to strongly-ordered. However, from the same doc it seems like making the memory strongly-ordered would also turn off the cache (Table 4).I really want to only turn off the prefetcher while keeping the cache on. Does anyone know if this is possible?Maybe at this point this became more of an obsession of mine than a prod

Have installed STM32CubeIDE on my Debian Linux system.Following the QuickStart Guide, I try: File > New > STM32 Projectand it thinks about it and the gives me:-What did I forget to do and where does it tell me to do it?

Hello all,Must use I/O expander (PCA9534PW) with STM32F334K8T6.Code:HAL_I2C_Mem_Write(&hi2c1, 0x20<<1, 0x03, I2C_MEMADD_SIZE_8BIT, 0x00, 1, 15000);All code (CubeMX generated): https://pastebin.com/GKNxHSut The usual HAL_I2C_Transmit is not suitable, since here it is necessary to select the module settings register (as well as with an external EEPROM).1) 0x03 - configuration register2) 0x00 - set all 8 pins to exit modeWhen the code is run, the expander reacts, but not as it should. Instead of setting all pins to output mode, he puts one or more (I can see this by the LEDs on the expander outputs, since they are high by default). Having tried various combinations of the configuration register, for example 0x99 - all pins are in output mode. Although 0x99 shouldn't.Identical and with further on / off pins - what I enter - does not match at the outputs.My guess is that there is bit shifting going on here and the shifted combination arrives at the device.What options did I check:

I am using NUCLEO-64 stm32f401 and had to replace the IC with a new one of the same type since the old one got damaged. After soldering the new IC I downloaded my l test code(LED Blinking) but the debugger stopped in HARDFAULT_HANDLER. None of my GPIOs are working. Should I should download a new boot loader or is it already built in to it. What are the procedures I should follow to make my Nucleo-Board working. Is there any material available which can help me through the procedure. Please excuse me , as I just started learning the board. Thank you in Advance.

STM32F407VGTThe microcontroller is somehow goes under write protection mode while practicing firmware upgrade program.Is there any method to unlock write protection ?Cant able to program though keil. But ST LINK UTILITY software is able to reprogram the microcontroller but not able to erase memory.Iam using STM32F407VGT discovery board.Please help!!!!!

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Hello, I currently have this code setup to erase a specific sector of the STM32F207 internal flash:static void eraseSector(uint32_t sector) { FLASH_EraseInitTypeDef eraseInitStruct = { 0 }; HAL_StatusTypeDef status = HAL_OK;   if( HAL_FLASH_Unlock() != HAL_OK ) { printDebug("Error unlocking Flash\r\n"); }   eraseInitStruct.TypeErase = TYPEERASE_SECTORS; eraseInitStruct.VoltageRange = VOLTAGE_RANGE_3; eraseInitStruct.Sector = sector; eraseInitStruct.NbSectors = 1;   status = HAL_FLASHEx_Erase_IT(&eraseInitStruct); if (status != HAL_OK) { print("Unable to erase Sector: %d\n", status); } else { print("Flash sector %d erased. Status: %d\n", sector, status); }   /* Wait for the erase operation to complete */ osSemaphoreWait(FlashOperation_sem, osWaitForever);   if( HAL_FLASH_Lock() != HAL_OK ) { print("Error locking Flash\n"); } }When this code executes, the application resets whenever the FLASH_CR Start bit is set in the FLASH_Erase_Sec

hello want to sense some analog signal with passive modedoes ST25 able to work with passive mode?since i know that many researchers prefer ST product because of fidelity,really want that want to run project with ST products.can you help me with finding the right model that im looking for?the thing im trying to find now is,1. RFID transponder tag2. Passive mode availability3. Sensing interfacethat is the all the features what im looking for now.Will attach image for better understanding the sysmtem in orange box is the thing all i needdoes ST25 is possible to make that system?really appreciate for sharing your time with my postthank you very much

Hello,I am working on BLDC driver based on STM32. I am using HRTIM to generate 3 complimentary PWMs at 20Khz in up-down counting mode. Every now and then, a single pulse of the PWM is wrong, like it would have 100% duty cycle. The issue is non periodic (seems to happen in random time intervals, ranging from ~0.1 Hz to ~10Hz), and happens on all channales of the HRTIM. It results in a loud audible noise from the motor.On the image below you can see an oscilloscope screen of the event. Top curve is current on the one of the motor phases, the lower two are complimentary PWMs (on the STM side, before the mosfet driver). I am using 20 kHz control loop for updating the PWMs duty cycle with normalisation in place to make sure i never accidentally write illegal value to the register. I have tried both with Reload Enabled and Disabled. I have also tied to lower the control loop frequency to 12 kHz and 5 kHz but the issue persisted.

HI,In LSM3DH accelerometer sensor datasheet given output of accelerometer is 16 bitthey are divided into two 8bit registers. MSB, LSB registers. LSB register is always giving ZERO as output. only MSB register is giving output.Why LSB register is always giving ZERO results. Please send your answerThank u