Others: hardware and software

Hello,       I'm using M95256 IC as the external EEPROM for the controller.  When I test the write flash memory operation, I found that the memory could not write yet, my instrcution order shows below:       step 1: read status register       step 2: check WEL bit and excute WREN if it  WEL bit equal to 0        step 3: execute write four bytes from address 0       step 4: read status register and check WIP bit       step 5: execute read memory when WIP bit equal to 0the SPI order decoded as belows:       So did I execute right write order, and do you have some advices to check the write operation?Thanks！yang.ma  

"Does the M24C64-FMC6TG have a spike filter that allows it to be mounted on an I3C bus and operate at maximum speed?"

can someone help me identity this component

when I use vl6810  with 51 chip , the  i2c use pull up to 1.8V  。all the init register is correctly， I Using an oscilloscope for detection ，It seems all correct。but it always wait at VL6180X_REG_RESULT_INTERRUPT_STATUS_GPIO here ：while(!(VL6180X_ReadByte(VL6180X_REG_RESULT_INTERRUPT_STATUS_GPIO)&0x04));it  always read 0 ，It took me a long time and I couldn't find where the problemBut if I use STM32 as the MCU, everything will be fine。      

Please help me to find equivalent to this IC AP239

Hi, When I start MotorControl Workbench_6.3.0 and select the example project "Electronic speed control on the B-G431B-ESC1 kit" and do nothing else except generate the code, I get these error messages with attachment.Am I missing a software package on my computer?best regardsAaron 

Hi I'm trying to reuse some code that uses use std::fstream for file access.I have the FATFS working and can read and write files. like this:fr = f_open(&fil, path, FA_WRITE | FA_CREATE_ALWAYS);if (fr == FR_OK) {// Write text to the filefr = f_write(&fil, text, strlen(text), &bw); Is it possible to get std::fstream to work in this environment?Or is it just too much hassle? Kristian Vang     

Hello everyone, I have problem with IC identification. Marking is D300I , 90A819. Pls let me know what kind of IC it is.Vcc pin i the 1st pin, and GND is 8th pin, that's all I know.  

hi,I am looking for an example .hex file for the M24M02-DR 2Mbit EEPROM (256k x8 format memory). Could you please point me to it? 

Hello! I need a SPICE simulation model for thermistor(PT1000-A). Kindly help!

Hello,My new NanoVNA-H4 arrived today.  I immediately set out to update its firmware to the latest version (v1.2.29) but have been unable to get the DFuSe_Demo_V3.0.6 bootloader to "Choose" the DFU file (NanoVNA.H4.v1.2.29).  I get a "This file doesn't have a correct format..." error every time I make the attempt.  I therefore cannot update the firmware in my new NanoVNA. How can I fix this problem?See attached screenshot.Thank you,JS2OLO

Does anyone here have a datasheet for part# SD1731-11? I see on website only datasheet SD1731 and SD1731-14. Does anyone know what the "dash #" stands for?

I am currently working on downloading an image into the LT-22222-L using the STM32 Flash Loader. While the download completes successfully and runs as expected, I am encountering significant issues with the application. It frequently crashes, and on the rare occasions when it remains stable, all options within the application appear empty. I would appreciate your prompt assistance in resolving these issues. Thank you for your support.      

I am looking for the component number marked EVU T03 GP442 casing SMB.Thank you

can someone help me identify this diode

Dear Support, Please advise the difference between part numbers STL23NM60ND1311 and STL23NM60ND. Verify their interchangeability as well. Can be replacements for each other. Thanks

How long do EEPROM memories used in HDDs retain all data at a temperature of 36°C?EEPROM, like flash, does the number of erases/writes have to do with the data retention time?2.5" and 3.5" HDDs use EEPROM or flash to store BIOS/firmware. What type of flash memory do they use? Is it the same type of flash for all HDDs that use this technology?

ST M29W640FT 70N6H flash Nor chip with 20 erase write stored in temperature 33-36C and no powered In this case, what is the most approximate and realistic estimate of years for it to retain all the information written on this chip? an approximate number of years

Hello. im currently using the EVAL-RHF1201V2 and would like some help setting it up to properly measure dynamic characteristics. Particularly regarding the RPOL resistance and for a sampling frequency of 40 Mbps and a differential AC input from 1 MHz to 10 MHz with a max amplitude of 2Vpp. I also tried to apply the recommendations in the datasheet (fine = 15MHz and FS = 50 Mbps) in order to measure dynamic performance but I am far from obtaining them. Can someone help me please?  

Hai,   I'm planning to integrate STSAFE-A110 with esp32 for MQTT TLS Authentication.I downloaded the "en.x-cube-safea1". In that I saw that "\Authentication" example.How can I integrate with my project? My setup is like cloud will running MQTT broker. ESP32 is a client.My expectation was connecting ESP32 to cloud MQTT broker with the help of STSAFE-A110.Which example I have to look? Best RegardsBose

Hello,      I am designing with the aforementioned RTC and have the following questions.  I contacted ST support and the solution was to ask the forums.  So here are my questions:What is the date output (i.e. binary, BCD, YY:MM:DD:dd, HH:MM:SS:hh, etc.)?The crystal and battery are in a separate module and are not integrated with the IC itself. I want to make sure that it is compatible with both types (the 48 and 120 mAh).What does the chip control in terms of the NVSRAM? Is it a buffer? What does it do?Unrelated to this chip in particular, does ST have a RTC with an integrated (non-seperate SNAPHAT) crystal and no battery pin, just VDD? I do not need a backup battery, or a pin for it.Thank you

We have an STMC2 in which we have lost the ST Micro Connection Package and cannot use it.Since it is obsolete in STMC2, ST does not have software. Does anyone know where I could download or buy this software?

Dear @all, i am looking for the latest ST Micro Connection Package (for the STMC2) and the manual for arm cortex cores "Using ST development tools with ST Class 4 devices (Doc ID 022499)"? Maybe someone can help me. Thanks! 

2.5" or 3.5" hard disk drives HDDs use what type of flash memory to store bios, firmware, SMART and what is the data retention time on that chip? I know they use a PCB

Hi,trying to get an M24512E-FMN6TP running but I only receive I2C NACKs using the default address in the DS13657 - Rev 3 - October 2023 data sheet. After some detailed reading it seems the FMN6TP device does not apply to this data sheet, there is a cryptic note under 11 Ordering information saying I should use the data sheet M24512E-F revision 1 - October 07,2022 which I cannot find, either on the ST web site or via Google.What is up with this device and where can I find the correct data sheet? ThanksGoran