Others: hardware and software

Discuss hardware and software design challenges, including NOR flash storage, OTA updates, component ID, and thermal management.

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VL6180X_REG_RESULT_INTERRUPT_STATUS_GPIO always 0

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_Read...

QZH by Associate II
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  • 3 replies
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use std::fstream for SDCARD

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(...

Kvang by Associate III
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  • 1 replies
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Component identification

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.  

Zrzut ekranu 2024-09-11 094622.png
Semator by Associate
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  • 5 replies
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Resolved! Cannot update firmware on new NanoVNA-H4

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...

JS2OLO by Associate II
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  • 1 replies
  • 0 kudos