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Hello,I am using the FIFO to read the gyroscope and accelerometer data from the LSM6DS33 using a Raspberry Pi. It is connected over I2C at a frequency of 400kHz. Currently it takes between 4-7 seconds of constant reading to empty out the FIFO and by then it's almost full again. Is there a way to do a bulk read of the FIFO rather than read each sensor reading separately?Thanks,Mahmoud

Hello, I tried to use FIFO in way to count data ready . My idea to count sample and if it is a 32 sample in FIFO I read all at once. As far I understand, according by datasheet "Accelerometer and gyroscope multiple reads (burst)" Page 21Data stores into FIFO in this way0, OUT_G_X,OUT_G_Y,OUT_G_Z,OUT_XL_X,OUT_XL_Y,OUT_XL_Z1, OUT_G_X,OUT_G_Y,OUT_G_Z,OUT_XL_X,OUT_XL_Y,OUT_XL_Z...31, OUT_G_X,OUT_G_Y,OUT_G_Z,OUT_XL_X,OUT_XL_Y,OUT_XL_ZThat is my setup of sensorlsm9ds1_fifo_temp_batch_set(IMU_I2C_ADD, 0); lsm9ds1_fifo_mode_set(IMU_I2C_ADD, LSM9DS1_STREAM_MODE); lsm9ds1_fifo_stop_on_wtm_set(IMU_I2C_ADD, 28);   pin_cfg.int1_drdy_xl= 0; pin_cfg.int1_drdy_g = 1; pin_cfg.int1_boot = 0; pin_cfg.int1_fth = 0; pin_cfg.int1_ovr = 0; pin_cfg.int1_fss5 = 0; pin_cfg.int1_ig_xl = 0; pin_cfg.int1_ig_g = 0; lsm9ds1_fifo_watermark_set(IMU_I2C_ADD, 32); lsm9ds1_fifo_watermark_get(IMU_I2C_ADD, &value); lsm9ds1_filter_settling_mask_set(IMU_I2C_ADD, 1); lsm9ds1_act_mode_set(I

Hi,The package UFQFPN32 (5x5 mm) have an exposed pad but where is the definition of this Exposed Pad in the datasheet for the STM32F302K8 K Must I connect to the GND or is it not connected or maybe another pin definition ? I can't see in the datasheet.Thanks for your help.

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I'm using USART2 on PB3 and PB4 which means setting the AFR bits for those GPIO pins to 7. The CubeMX wizard and HAL GPIO libraries agree with this, but the AFR bits for PB4 stubbornly revert to 0 and my USART wont transmit. What is going on? I've tried my own code and the behaveiour doesn't seem any different. Using a data access breakpoint I can catch the expected writes and in the debugger I can set the AFR momentarily, but then it reverts. The lock register reads zero.Is it a hardware issue?

Hi,I have a new project with STM32G474CE and cant get it start. If I program it with STM32CubeProgrammer it runs the a simple code for led blinking. I checked all VDD,Vref,Vbat pins and all okay. But after powering it off and on again, code gets stuck.I debug it with keil and see it is stuck in some loop at the beginning. Same thing happens if I programm it with keil, it cant reach to led blinking.I checked the option bits with STM32CubeProgrammer for boot0 and it is unchecked.

In CubeIDE SFR view systick registers names do not match Programming Manual definitions.SFR:register | addressSTCSR  | 0xE000E010STRVR  | 0xE000E014STCVR  | 0xE000E018STCR   | 0xE000E01Cpm0214, page 246:register | addressSTK_CTRL | 0xE000E010STK_LOAD | 0xE000E014STK_VAL | 0xE000E018STK_CALIB | 0xE000E01CSo which register definition is correct?

Hello ST Community,in my application I use an STSPIN32F0B in FOC.The design is similar to the STEVAL-SPIN3202 demo board. I used the STSPIN32F0A in Motor Control Workbench to generate the code (STSPIN32F0B is not in the Motor Control Workbench). I use it to control a BLDC motor sensorless. PWM frequency is 20kHz and the deadtime 900ns. The control of the motor works fine.the only thing that strikes me as strange is the oscillogram of the 3 phases. Here there are sporadic short intermediate pulses between the 20KHz pulses (see oscillogram)Do you have any idea what is happening here?Thank you very muchBest regardsFranz

Greetings,I have been working on the SensorTile.box and specifically the pedometer functionality (worn on wrist) for a while now and I am stuck right now.I want to optimize the algorithm to reliably count steps. To achieve this, I began optimizing it for myself, using Unico GUI, just to see, if it is possible the way I intended.For this purpose, I wrote a datalogger, which I pretty much confirmed to work in the way intended, I cut the accelerometer data using Matlab to verify, that I only use actual walking footage for the regression tool in Unico GUI and in the end got an error average of 0 when I fed new data to the tool. I also checked, if the accelerometer configuration is the same in the logger firmware, as well as in the step counter firmware. The data was collected at 104 Hz and sampled down to 26 Hz.I am forced to work with a full-scale setting of 16g because of other projects running on the same device. Using the C code generator inside Unico GUI, I turned the ucf fi

Thank you for helping.When building with sincos ()'sincos' was not declared in this scopeI get the error.What should I do?#include "math.h" is declared.Thank you.

Hey guys , I am trying to program custom stm32 board using stm32lorwan module using stlink v2 pins. I have configured debugger as followed.Can you tell me debug configuration?>>Connect to remote GDB server , port no 61234>>debug prob , stlink (stlink gdb server)>>Interface , SWD>>Access port, 0-cortex,m0plus>>Reset behaviour , Software system reset>>Debug In low power modes, Enable>>Suspend watchdog counters, DisableBelow is issue that I am having.Error in final launch sequence:Failed to execute MI command:target remote localhost:61234Error message from debugger back end:localhost:61234: The system tried to join a drive to a directory on a joined drive.Failed to execute MI command:target remote localhost:61234Error message from debugger back end:localhost:61234: The system tried to join a drive to a directory on a joined drive.localhost:61234: The system tried to join a drive to a directory on a joined drive.

There is a discrepancy between rev 8 of the datasheet and rev 7 of the reference manual regarding the PLL VCO output range parameter when the PLL is setup in wide VCO frequency mode.In section 7.3.10 of the datasheet, the VCO output range is between 192 and 960 MHz.In section 8.7.12 of the reference manual, the documentation regarding the VCC#VCOSEL bits in the RCC_PLLCFGR register specifies a VCO output range is between 192 and 836 MHz.I am pretty sure that the datasheet description is correct as I haven't encountered any issues configuring the micro with a 960 MHz VCO output, but would like an ST representative to confirm that and an assurance that the reference manual will be amended in future revisions.Cheers,Craig

My sincere apologies for what I am sure is an idiot newbie's error. Thank you everyone for your time.I have STM32CubeIDE and I do not seem to be able to read back values of SFRs (peripheral registers) while in debug. E.g. my code containsHRTIM1_MASTER->MCR = 0xD;In the SFRs panel both before and after this statement is executed, MCR is zero, which is its reset value. Same in pop-up window when I mouse over HRTIM1_MASTER->MCR in the source-code file.I see that e.g. the PLL is being configured correctly, likely in SystemClock_Config(). When I look at PLLSYSN at a breakpoint, it is not at its reset value and is at the value that it is set to in SystemClock_Config().STM32CubeIDE is 1.7.0 and my hardware is STM32G474E-EVAL1. I tried various combinations of settings in Debug Configurations -> Debugger. The debugger correctly connects in each case but my code appears unable to modify the SFR in each case, that is, I do not read back by the debugger the value I set in my user code.

I use the NUCLEO-L4R5ZI Evaluation Board.I use STM32CubeIDE with HAL and gcc.When i activate an Timer Output Channel (I have tried it with Output Compare, PWM, Forced Output) i get a Signal:0 in the gdb after the Timer init (e.g. after call of MX_TIM16_Init())If i don't use Output Channel or when i use an Input Channel for Timer everything works fine.I have this behaviour with all timers.For testing i have disabled the NVIC interrupt but this doesn't fix this strange-error.Is it possible that the timer output calls some function that is not defined ? I use APB1 and APB2 clock with 8 MHz.Thanks for your reply.

I have a version of nfcPoller linked against rfal v1.3 on Linux 5.10.17. This has been working fine with gcc 7.5/glibc 2.31. We recently bumped our toolchain to gcc 9.4/glibc 2.33 and now I get timeouts while reading anything with an NDEF field (or anything other than a header). I'm testing with an card that reports as:xampleRfalPollerActivation[exampleRfalPoller.c:900] INFO NFC-A T2T device activated exampleRfalPollerRun[exampleRfalPoller.c:343] INFO atqa_sak: 004400 exampleRfalPollerRun[exampleRfalPoller.c:366] INFO MIFARE Ultralight UID: 04B89DB22F6680The code that causes this is in st25r3911/rfal_rfst25r3911.c, line 1900: /* Only raise Timeout if NRE is detected with no Rx Start (NRT EMV mode) */ if( (irqs & ST25R3911_IRQ_MASK_NRE) && !(irqs & ST25R3911_IRQ_MASK_RXS) ) { gRFAL.TxRx.status = ERR_TIMEOUT; gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_FAIL; break; }It seems I'm getting the NRE interrupt from the ST25R3911B interrupt register. I don't know how I get thi

I am miniaturizing the STM32F767ZI for a project I am working on and would like to have it function identically to the standard STM32F767ZI. Part of this includes having the ST-Link aspect of the board so we can program it via USB. I have not been able to find any resources detailing how this aspect of the board works beyond the schematic.

Hello,Has anyone ever used the emulated usart provided by ST (AN4457) based on timer and DMA?I need it for transmit, not for reception.In my test, most of the time TX characters are corrupted, sometimes it works.I checked with scope and it appears that the startBit is missing, but the rest of the byte is correct.Here example with the 'a', white trace is the correct one, yellow is the measured trace.It seems that the Start bit is present in the 'calculated' buffer for DMA, but the timer overflow early...Thank you,Pierre

I want to use MOVE and GOTO on some of the steppers at less than 15.25 FS/sec and with finer control than 15.25 FS/sec increments. Is there a way to specify MOVE and GOTO speeds other than by using the MAX_SPEED setting?

For example the custom command `0xAD` is "Read" and `0xCD` is "Fast Read". How should I determine when to use the fast version versus the non-fast version? How does this relate to the `data_rate_flag` in the `request_flags` byte of the RF request packet?Note that when I try using the fast versions of commands using the ST25 demo app, I always get "Tag not found" error using several modern iphone and Android devices. This is true with the `data_rate_flasg` both set and clear. Is this expected? Do I need to do something on either the tag or the phone to enable these fast mode versions of commands?

Clarification: Can I be sure that the case in Errata sheet ES0491 "Device may remain stuck in LPTIM interrupt when entering Stop mode" never occurs for certain LPTIMx if no interrupts within it are used to wake up MCU from Stop mode and disabling of LPTIMx by clearing the ENABLE bit in the LPTIM_CRx register can be used safely?

Hi,i'm using the LIS3DSH to read data in different sampling rates (from 25 up to 1600), but in some cases i notice the first data in Z axe is not correct (some times it's too low or too high, for example, first data is -0.7g (or -1.5) and the rest are around -1g) and this happen with a random sampling rate, somethings happen when i use 100 hz and sometimes when i use 400 or 800. i even changed the anti-aliasing but i had no luck, the only think i can do is to wait until the value is updated in the sensor so i can get the next value at the start.this is a snap of my code to about the state machine configuration this is the initialization section:AccelTxCmd(0x01, LIS3DSH_CTRL_REG3_ADDR); /* registers reset */ AccelTxCmd(0x00, LIS3DSH_CTRL_REG4_ADDR); /* make sure LIS3DSH is off */ AccelTxCmd(0x00, LIS3DSH_CTRL_REG3_ADDR); /* make sure IRQs disabled */ AccelTxCmd(0,LIS3DSH_CS_X_ADDR); /* constant shift for x axis*/ AccelTxCmd(0,LIS3DSH_CS_Y_ADDR);/* constant shift for y axis*/ AccelTxCmd(

Classic CAN configuration as below. when the line "if(HAL_FDCAN_ConfigGlobalFilter(...))" is removed, the CAN messages are received without issue. The transmitted message is set as ID: 0x111 . Confirmed by a CAN bus monitor.Configuration as below:FDCAN_FilterTypeDef sFilterConfig; sFilterConfig.IdType = FDCAN_STANDARD_ID; sFilterConfig.FilterIndex = 0; sFilterConfig.FilterType = FDCAN_FILTER_MASK; sFilterConfig.FilterConfig = FDCAN_FILTER_TO_RXFIFO0; sFilterConfig.FilterID1 = 0x111; sFilterConfig.FilterID2 = 0x7FF;  if(HAL_FDCAN_ConfigFilter(&hfdcan1, &sFilterConfig)!= HAL_OK) { Error_Handler(); } // If comment this one, it works. if(HAL_FDCAN_ConfigGlobalFilter(&hfdcan1, FDCAN_REJECT, FDCAN_REJECT, FDCAN_FILTER_REMOTE, FDCAN_FILTER_REMOTE) != HAL_OK) { Error_Handler(); } if(HAL_FDCAN_Start(&hfdcan1) != HAL_OK) { Error_Handler(); }

I am using OSD32MP1 (based on STM32MP157c) in Production Mode with OpenSTLinux on Core A7 and FreeRTOS on M4. One of the tasks is to timestamp ADC data acquired by M4 at very highspeed, very precisely (think it order of nanosecond to microsecond). Note that only time difference between measurements is important.On-chip RTC is available (it is assigned to A7 but registers are accessible to M4). However the subsecond precision is ~0.003s (PREDIV_S is 255 - See Reference Manual for Detail) so it is not good enough. This, this and this stackoverflow posts led to using DWT_CYCCNT i.e., CPU Cycle Counter to measure the time time difference. Relevant portions of the code is as following: On M4 Side:typedef struct tTimeStamp { uint32_t nCPUFreq; uint32_t nCPUCycles; ... }tTimeStamp; ...   tTimeStamp oTimeStamp;   ...   oTimeStamp.nCPUCycles = DWT->CYCCNT; oTimeStamp.nCPUFreq = HAL_RCC_GetSystemCoreClockFreq();The last 2 statements runs inside the FreeRTOS task

I use the viper06HS to generate +3.3V. i follow the reference design provided by eDesignSuite.When i turn on my system. the viper06HS provide 1.24V do you idea?I attach my schematic