Others: hardware and software

Good morningI must work to a board not projected from me with STC4054GR.The desgner has connect a led between VCC and pin CHRG (with a resistor) like a feedback for see the status (charging or not)I'm working with 2 board and i see 2 different behaviors:The first board when the battery is disconnected the led (on the CHRG pin) blinks (when the power supply is connected or VCC is ON)The second board in the same condition the led is ON fixed but is a little less bright of when the battery is connected.Does someone tell me why and what's the normal behavior?   

Hi could you advise what the part marking is for below, please?  M24C64-DFMC6TGASM330LHHXTRSTTS22HTRLIS2MDLTR Kind regardsMayura

Hello team!! Perhaps this issue is solved somewhere, just want to be pointed on the right direction.Recently I got two NUCLEO boards (G474 & F334) and wnated to make a fast prototype on them, the first thing I did is the simple "blinky" prog to check if all were fine. As I am fast prototyping, I use SIMULINk to generate the necesary file to do the job.Now, I followed the instructions to registered to use with MATLAB and Simulink, downloaded the file in ST required version 6.4.0) and after installing the version is nor recognized (see first attachement).The STM32CubeMX. exe works as intended, so no issue there~ I checked the .exe  file properties and indeed it has File version 4.1.0.0 (second attachement)! Now, how I can indicate that the version is correct, get the real file with v6.4.0 or how to modify the version in the .exe file to be recognized. And yes, I know that MATLAB has to ask for more recent file but let's be constructive and find the

Hi, I'm having trouble identifiying an ST part from marking code.Component is a 8 pin IC.Code is as below:First line: 3s128wt First line: k952k Thank you !Best regards, M 

We have selected TDE1767DP TDE1747FPT part as a replacement part for TDE1767DP. I have two questions in this case. The first question is: Both the parts has a capability to shut down the driver when internal dissipation becomes too high to prevent excessive heating. But in addition to this, TDE1767DP part has Reset Pin (Pin No: 5) which controls the output as below: The output stays null after the overheating is off, if the reset input is low. If high the output will alternatively switch-on and off until the overload is removed. I would like to know how this (Reset) functionality is controlled when the overheating is in off state in TDE1747FPT. Second Question: It is regarding the output logic. To get the similar output when we use TDE1747FPT IC in place of TDE1767DP do we need to swap the inverting and non inverting inputs because the output side of TDE1747FPT has the NPN transistor logic and TDE1767DP has the PNP logic.

I need a datasheet on the L9116 component. Thanks

We are implementing two TDA 7293 amplifiers in a Master / slave configuration, for a 35 watt, 30 kHz drive of a high frequency device that operates between 2.8 ohms and 7.1 ohms on the output pins (5.6 ohms to 14.2 ohms per amplifier). We have a couple of questions we want to get clarified: What is the output voltage range of the device, as a function of input source voltage? Nothing is specified in Table 2.1, but the onset power points of significant THD on the plots in figures 14 and 15 suggest that clipping and distortion start for peak to peak output amplitudes that exceed 80% to 85% of the supply voltage range. Is that correct?Is there a Gain Bandwidth product specification for the TDA7293 device? If so, what is it? Table 2.3 lists an open loop voltage gain, and specifies a closed loop voltage gain (without specifying the frequency), but no GBWP listing.Note (2) of the Gv entry in table 2.3 states:  “Gvmin >/= 26dB”. Some people in the group here believe that means th

Hello,Please find the below image we design schematic and doing testing of this circuit. This design functionality is working but during capturing the waveform of current waveform and Xfmer input voltage waveform we observed high spike as highlighted in below image. Switching frequency: 20KHzI/P HV: 60VPhase shift: 50%Dead time: 400nsPlease help me out to resolve this issue.Let me know if you have any questions.Thank you.

Hi ST TeamI have a question about the TDA7266D13TR product.Checking the TDA7266D13TR datasheet gives the specifications for the TDA7266D and lists the operating temperature as 0°C to 70°C.The temperature specification I need is -20~85°C or higher.Please let me know if there are other options based on temperature.

Hello,I have a couple of diodes that needs replacing, but I can't decode the markings. Is there a reference manual or an easy way to find the right diode?The markings are:ST-logoT01C029Can anyone help?Thanks! Elco 

 Hi, I'm trying to read an LCD 8 bits information, so I need to quickly change PA0 ~ PA7 to input, then read the IDR register, and return them to output after reading the 8 bit bus, but I need help. Thank you all. 

Hi,I am posting this question, same as I have posted on the stackoverflow to find some clues into my problem.I had been programming my STM32F407 MCU for almost 6 years using OpenOCD's GPIO Bit bang driver over Raspberry-pi for Serial Wire Debug for almost all kinds of projects. Yesterday, I started developing for the USB device driver on my MCU and after the first flash, I am no longer able to connect to it via OpenOCD GPIO Bit Bang driver.I am successfully able to do everything using OpenOCD with STLink; however, I am not able to connect to DP, using bit band SWD driver of openocd, even if I mass erase the flash and reset everything using stm32cube programmer first. All the option bytes show that everything is as it should be to allow connecting and writing to flash memory.Does USB development cause any side effects which I am not aware of ? Did anyone face a similar issue before? My physical connections are not a problem. Sometimes I see messages like Wrong Parity Error. I am no

I am trying to implement a gesture recognition system using tensorflow lite and mpu6050 but for that I have to use tensorflow lite micro in my STM32F446re but after downloading it from github repository I saw it is being build by Bazel but I usually use Cmake to build my project. have anyone tried this before please share your experience/process with me it would be a great help 

Hi, I have an IC which i traced back from a three phase inverter. I am trying to find the part number of the ic, but i couldn't find it. Can you help me to figure out the part number? For identification see the attached screenshot. Thanks in advance,Kevin 

I can write and read byte, float or text on the eeprom. And I was thinking that is Ok with the processes of wiriting and reading. But when I tried that with the group of data, it appeared that something is wrong. It means that when I first write goup of data, fx seven bytes and then I try read them, it appears that only about half of them are correct. Fx:bytes written:Test byte to write into EEPROM: spi_buf = 0xA0Test byte to write into EEPROM: spi_buf = 0xA1Test byte to write into EEPROM: spi_buf = 0xA2Test byte to write into EEPROM: spi_buf = 0xA3Test byte to write into EEPROM: spi_buf = 0xA4Test byte to write into EEPROM: spi_buf = 0xA5Test byte to write into EEPROM: spi_buf = 0xA6Bytes read:Test byte read: 0xA0Test byte read: 0xAFTest byte read: 0xA2Test byte read: 0x0Test byte read: 0xA4Test byte read: 0xA4Test byte read: 0xA6 The same concerns other type of data.=============================================The code written under stm32CubeIDE, board F103C8T6.SPI configuration

Hello, The datasheet for the ESDA25-4BP6 is a superset datasheet that covers 4 part numbers. The datasheet contains functional diagrams for 3 of the 4 parts, but no diagram for the ESDA25-4BP6. I am guessing that the ESDA25-4BP6 has the same pinout and configuration as the ESDA14V2BP6, but don't like to take guesses at these sorts of things. Could someone please confirm that the ESDA25-4BP6 is indeed configured the same as the ESDA14V2BP6?  Thanks,Neal

  Currently, when trying to fuse the Open IMU330BI (MCU: STM32L431) using STM32CubeProgrammer, the error message "There's no active configuration for this device. All 1 configurations are disabled" appears when attempting to connect. Despite the error message, the connection is established, and while the file download initially failed during the fusing process, it is now successfully downloading. What could have caused this issue?

Hi Team, Hope you are good.This assessment is focused on optimizing the Bill of Materials (BOM) and evaluating Supply Chain Management (SCM) readiness for the new design.Could you please confirm if the part from the attachment,  is there any chance to schedule for End-of-Life (EOL) within the next five years?Additionally, kindly provide the following details to support our design process.List of parts: EMIF01-10005W5STM32F779NIH6STTH8S06DSTPS0530ZSTM32F777NIH6STMPS2141STREMIF02-USB03F2Part lifecycle status:Part Introduction date:EOL Plan for next 5 years:Country of Origin:PCN details(if any):EOL announced date:Lead time:RoHS status:Recommended alternates (for early design in opportunity consideration):Waiting for your valuable support.Thanks,Prabhakaran RLead – Advance SourcingPartmatters

Currently, I am using Keil Microvision 5 for programming STM32. Now, I want the example code of I2C to communicate between EEPROM and STM. I am using the STM32F103C8 controller and AT24C512C EEPROM. I searched about that, but I only found the example codes of STM32CUBEIDE and codes based on the HAL library. So if anyone have that code or example please send me. here I have attached the datasheet of STM controller and EEPROM.

Is anyone familiar with communication between stm32 and sim868 gms/gprs/gnss module? I currently have a custom PCB  that has an stm32f103ret6 and sim868 module that are connected via uart. My project setup has uart4 set as Tx and Rx between the two devices. However when I send a simple "AT" command, I get no response from the module even though I am expecting an "OK" response. I have tripled checked all hardware connections and everything is connected as it should be at the right voltage level as well. For context the gsm module GPIOs operate at 2.8v whiles the stm32 gpio is at 3.3v. I have the right voltage divider setup to convert 3.3v - 2.8v and when meaured with the multimeter I get exactly that. Here is the setup of my code. I have been in contact with the manufacturers of the gsm module and after inspecting my custom board, they said everything was fine and perhaps the issue lies with my uart HAL. This is my first bout with any stm32 mcu and I would appreciate a nudge in the

Where can I find the device mark/ body mark of the M95M01-DFDW6TP.Since I'm unable to find in provided datasheet in website.Thanks, in-advance for your support!

Hi, Can anyone confirm is the top side marking for the above is 24MO1WT.RegardsPeter

Hello,We need to integrate CiA417 CANOpen protocol for one of the application. Please suggest suitable STM32 micro-controllers and related documentation.Thank you

Hi, I appreciate that ST7 technology is totally obsolete, but as a hobby, I repair electrical appliances. One such item uses ST7, or more specifically, ST72F262 chips.  But the power supply circuit isn't well designed and fails, outputting well over 5v on the trail, frying the ST7 on the way.I'd like to resurrect some failed boards by installing a new micro, plugging into the 10 pin connector and flashing a clone of the programme flash from a good board. I have some experience with STM32 devices, but nothing with ST7.  The target board features a 10-way connector wired exactly as per the diagram in the data sheet.I don't need to write or develop new software, I just wish to read the programme memory out of a good board and flash it into a new micro that has been installed onto the board.  I've done this before with PICs, so the principle isn't too hard.  The PIC wasn't read-barred, so hopefully the ST72 won't be either.Can anyone steer me towards a solution?  I

I am using M24C04 chip and downloaded the software package EEPRAM2.if(EEPRMA2_M24_Init(EEPRMA2_M24C02_0) == BSP_ERROR_NONE) { chip_ok=1; // DOUBLEFLASH(); } else { chip_ok=0; }  if I used this instance it says chip ok=1 but the  read and write not working .As using M24C04 ,I also tried the instance asif(EEPRMA2_M24_Init(EEPRMA2_M24xx) == BSP_ERROR_NONE) { chip_ok=1; // DOUBLEFLASH(); } else { chip_ok=0; }it says the chip is not working