ESP32 Forum

powerbroker

let me present a proof-of-concept build of Java (+ a native library "jSerialComm") Esp32 FlashTool, capable of basic ESP32 serial operations:

read MCU ID + EFUSE bank 0
upload and run ESP-IDF ESP32 Stub loader from json file
retrieve MD5 of a specified flash region
dump specified flash ...

powerbroker

picking all this poothon stuff generously stuffed to us by the ESP team, i come to the conclusion that this is, definitely, possible.

let me present a proof-of-concept build of Java (+ a native library "jSerialComm") Esp32 FlashTool, capable of basic ESP32 serial operations:

read MCU ID ...

powerbroker

despite the fact ESP32 platform has quite significant shortcomings, one of which is definitely an extremely suxy ADC, it can be used in industrial devices and even in measuring instruments. let me show a prototype of an industrial voltmeter 0..10V with recalculation into absolute pressure:

IMG ...

powerbroker

yesterday my friend "bricked" two WeMos Lite boards:

IMG_20250422_015401.jpg
even if MCUs was functioning, they became unable to be flashed with all the arduino stuff. he attached a 5V ADC to some pins including D0, which acts as startup-critical BOOT option. he thought he could destroy pin D0 by ...

powerbroker

My esptool java port is now quite stable. Working with ESP32, ESP32S3, ESP32C3 and ESP8266.

Waiting for my other board to arrive to add them

being inspired with your code now experiencing some progress with running ESP32 Stub loader #2 from java program ;)

it truly reads flash chip with 0xD2 ...

powerbroker

my settings:

: Eclipse clang settings.png (46.43 KiB) Viewed 5318 times

all paths are correct. please note:

it's windows, not linux.
even if "d:\idIoT.Users\KDV\.espressif" is NTFS symlink, clang handles these paths with no problems when invoked by cmd console command.

powerbroker

begin is a method which actively tries to connect to the destination port. It cannot be part of the object definition.
Code: Select all
    HTTPClient http;
    http.begin("192.168.102.23", 8080);

finally it compiles and goes on with:

Code: Select all

	http.begin("http://192.168.102.23:8080/app/data");

powerbroker

There is no happiness in life...

i was highly proud myself thinking i'm the only one able to see the epidemic of sloppiness that affects almost every area...

but it turns out that people know about it

powerbroker

However, posting something like this won’t help either of us. If you need a solution...

well, can we address the LSP editor fake errors highlighting?
the thing is when clang for simple (only 'main.c') ESP32 Eclipse project is invoked from cmd console, it says nothing but silently generates the ...

powerbroker

I bought a ESP32-S3-DevKitC-1-N32R8V board (https://hu.mouser.com/ProductDetail/356-ESS3DVKTC1N32R8V) and try to upload a simple program to it with Arduino ide but got the A fatal error occurred: Failed to connect to ESP32-S3: No serial data received.

have you finally managed with your ESP32 ...

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