Others: hardware and software

Hi,I'm developing a custom board that using the LSM6DSOTR with NRF52832 microcontroler. In my project I defined that 3 minutes without moviment, the system is turned off and wake up when the LSM6DSOTR detect the movement. Below, the code to init my sensor.void Wake_up_init(void){write_register(LSM6DS0_WAKE_UP_DUR, 0x00); // Set Activity/Inactivity thresholdwrite_register(LSM6DS0_WAKE_UP_THS, 0x02); // Select sleep-change notification - Select Slope Filterwrite_register(LSM6DS0_TAP_CFG0, 0x51); // Turn on the gyroscope - ODR_G = 104 Hz, FS_G = ±2000 dpswrite_register(LSM6DS0_TAP_CFG2, 0x80); // Set duration for Inactivity detection - Select Activity/Inactivity threshold resolution and durationwrite_register(LSM6DS0_CTRL1_XL, 0x70); // Turn on the accelerometer - ODR_XL = 104 Hz, FS_XL = ±2 gwrite_register(LSM6DS0_CTRL2_G, 0x4C); // Turn on the gyroscope - ODR_G = 104 Hz, FS_G = ±2000 dpsnrf_delay_ms(4);write_register(LSM6DS0_CTRL1_XL, 0x10); // Turn on the accelerometer - ODR_XL = 104 H

Hi,We are using M95040-DFMN6TP SPI PROM on our board.The Serial Input/ Output timing given in the datasheet is not detailed.There is not much info on the address width and data width, and how to control write/read, there also isn't the register definition.Could you please point me to the document which provides these details, similar to the one in the image attached.

Hi,  Can anyone help me identify the component(s)?  What kind of components these and what is the type of package (SSOP8 or TSSOP8)? Please see the the pictures. Thank you.

Hello, I am using ISM330DLC sensor for my application on Esp32. Data ready pin from esp32 and sensor is being used to check if values are avalaible on the sensor or not.  As per the Application note AN5125, Data ready pin should high for a while and then all data should be fetched properly.  But in my case when I set ODR to 6500 Hz for Accelerometer, data ready pin counting 6500 in a second, but accelerometer samples are only collected 900 in a second (which should be (6500*3) per second). I am using init function from ISM330dlc library: /** * @brief  Configure the sensor in order to be used * @retval 0 in case of success, an error code otherwise */ISM330DLCStatusTypeDef ISM330DLCSensor::begin(){  if(dev_spi)  {    // Configure CS pin    pinMode(cs_pin, OUTPUT);    digitalWrite(cs_pin, HIGH);   }  /* Enable register address automatically incremented during a multiple byte  &nbs

Can anyone confirm that a new M24M02 eeprom 256kB is 100% filled with 0xFF when first used?im wondering if we have a major bug where there are already settled parameters in our system because of addresses with something else than default 0xFF. thank you very much.

Hello,I purchased several of the SMT818 chips and was testing its watchdog timer capabilities for my TI MCU. I started with an input pulse that the MCU sent every 500 ms from a 3.3V GPIO pin into the WDI input. Looking at both this input pulse and the NRST output, I observed that the NRST output stayed high but when I removed this input pulse, the NRST output still remained high and did not attempt to reset like it should have, shown below: (blue signal is the NRST signal and yellow is the WDI signal)I then lowered the input pulse to 31.25 ns which is the fastest my MCU can trigger. This is where the behavior got strange. Instead of remaining high when the WDI signal triggered, the NRST signal started periodically going low for roughly 200ms shown below. When I removed the 31.25ns WDI input, the NRST signal stopped triggering and remained high.As a watchdog timer is supposed to reset a device that could be deadlocked, the behavior described above is clearly the opposite of what we need

Hi! I'm using Inolux_IN-PI554FCH LEDs with a custom PCB, controlled by an STM32H563VGT6.When using the LEDs and setting a colour like 255,0,0 (RGB) the noise generated on the data track is negligible. However, when I set a colour that is not 255, the noise on the data track becomes very high, interfering with the operation of other components. The noise measurements have been taken at the points marked in the following image.   Noise measure of colour 255,0,0 (RGB):Measure at mark 1: Measure at mark 2: Noise measure of colour 255,45,13 (RGB):Measure at mark 1: Measure at mark 2:  As I mentioned, when producing a colour like 255,0,0 (RGB) or any variant such as 0,255,0 (RGB), the noise on the track is negligible. However, when producing a color that is not 255, such as the case of 255,45,13 (RGB), the noise on the track is too significant to ignore.Currently, with this noise, I am experiencing issues with a capac

I'm working on a new board supplied with an updated EEPROM (M24M01-RMN6P), when the EEPROM was added to the schematic an old symbol was used where pin1 was E0 not DNU, as such it has been connected to 3V3 (VCC) instead of VSS.The board has now been modded to lift the pin so its NC but the I2C bus its on is stalling with no comms. Does anyone know what the outcome of connecting Pin1 (DNU) to 3V3 (VCC) instead of VSS is?Would it be expected to break the EEPROM and the I2C interface completely? 

Is someone working on STEVAL-DPSTPFC1?I am planning to cascade a 400VA inverter at the output to run a load. Will the PFC be working? Since the Evaluation Board is 3.6kW and we are planning to run a load less than 300W.

I am looking Strain gauge data logger PCB board with a minimum of 256 Hz above the sampling rate per second, kindly suggest which development is suitable. and how to connect strain gauges and get output

I'm using the BlueNRG-LP and want to enable "Readout Protection". From the reference manual RM0479 it can be enabled by writing the UserKey 0xAAAAAAAA to DATA0/1. In the RF-Flasher 4.3.5 Openocd readout_protection.cfg file writes the UserKey 0xFCBCECCC to DATA0/1. And in the Application note AN5471 it can be enabled via a Bootloader command. So my question is now which one is the correct?

I have an 8pin IC marked 351 but I do not seem to understand what ST component it is. See the image. I will appreciate any help for identification.

Hi Team,   Currently we are using M24C02-WMN6TP and is in NRND status. Could you please suggest an replacement which is FFF and active in status 

What is the lower limit of the POR threshold value for the M24C02-RMN6TPT?The datasheet states "lower than the minimum VCC", but we need to know the specific value.With our hardware, the VCC only goes down to 1.0 V, not 0V.  Therefore, I am inquiring to make sure that Device Reset is working reliably.

Hello, where can i find the altium files for steval-1sa170v1?

Hi to all!I am trying to generate an analog signal using a DAC that is built into the MCP2221 controller. The problem is how do I control the output current? Maybe there are some schemes or built-in capabilities in the MCP2221 controller? Is it enough to simply put a current-limiting resistor?I will be grateful for the answer!

Hello Team,We are considering STM6822SWY6F Watchdog IC for our design.We have query regarding WDI input pulse for time out condition. What is status of Reset pin, if WDI pin is fixed to High or Low voltage level even after 1.6 sec of time out period?Regards,Kadam Shah

Hi, I am using LSM6DSO IMU sensor to track motion and need to know the specifications of the inbuild Low pass filters. Datasheet only shows the block diagram and does not provide any information about filter type, order, frequency response. Could you please provide me with that information?

Can I get the FIT rate for TS3021IYLT including Activation energy (Ea), confidence rate, temperature, MTTF? thanks

hi,where i can download ST200 Micro Toolset software !! thanks

Can you provide the FIT or MTBF value of M24C64-DRMF3TG/K.Thanks

Hai, All,I destoyed (?) the firmware on my STEVAL-IKR002Vx boards. Is there a way to reanimate them with an IDE ?Thank you for your answer in advance.YouB

I am developing with ST31G480, but my emulator was broken. I can't do anything without the emulator.Any one knows how to get a new one for debug and development? Thanks 

Hi,I am trying to find documentation such as white papers user manuals etc. etc, from PSDsoft Express software, and the  UPSD33XX MCU's, but there is nothing available on the STMicroelectronics website.I know that these are obsolete products, but there must some archive on the net where this information has been stored,Thanks for any suggestions as to where this information might be stored. 

Dear sir This is Raja from Acme systemWe are doing flasher for E bikes. I need a flasher IC for LED lights of  less than 10W Bulbs