Build error

[Slenkis]

My platformio.ini file:

[env:esp32_HW_Ver_1.1]
platform = espressif32
board = esp32dev
framework = arduino
upload_port = COM20
monitor_port = COM20
monitor_speed = 115200
lib_deps = 
    me-no-dev/AsyncTCP@^1.1.1
    me-no-dev/ESP Async WebServer@^1.2.3
    CAN
    FS
    SPIFFS
    DNSServer
build_flags=
    -std=c++11
    -Wall
    -Wextra
    -O3
    -Wl,-Map,firmware.map
    -Ilib/Lawicel
    -Ilib/WebServer
    -Isrc/Adapters
    -Ilib/IO
    -Ilib/Settings
build_unflags = 
    -Os
    -g3
lib_ignore =
    Test

Build log: https://pastebin.com/huNsGX4y

OS: Win10 PRO x64 21H2
VSCode: v1.74
PlatformIO: 6.1.5

• framework-arduinoespressif32 @ 3.20005.220925 (2.0.5)
• tool-esptoolpy @ 1.40201.0 (4.2.1)
• toolchain-xtensa-esp32 @ 8.4.0+2021r2-patch3

[gabryelreyes]

Hi, this project has not been worked on for some time, and there has been some breaking changes since then. But I may have found a quick fix: Add #include <Websocket.h> to main.cpp

If you then get this error: Change your platformio.ini to use older platform version: platform = espressif32@3.5.0

[Slenkis]

I'm trying to use your project in a bundle of esp32 + vp230... for CAN Hacker v2.00.02 via USB

I downgraded the version, removed the build flags and moved the library dependency to include. now it is assembled without errors.

platformio.ino:

[env:esp32_HW_Ver_1.1]
platform = espressif32 @ ~3.5.0
board = az-delivery-devkit-v4
framework = arduino
upload_port = COM8
monitor_port = COM8
monitor_speed = 115200
lib_deps =
    me-no-dev/AsyncTCP@^1.1.1
    me-no-dev/ESP Async WebServer@^1.2.3
    CAN
    FS
    SPIFFS
    DNSServer
lib_ignore = Test

[Slenkis]

Now there is a problem when reading NVS settings..
In serial port after reset:

rst:0x1 (POWERON_RESET),boot:0x12 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:10124
load:0x40080400,len:5828
entry 0x400806a8
[E][Preferences.cpp:472] getString(): nvs_get_str len fail: SerialBaud NOT_FOUND
10.1.1.183
WebSocket client #1 connected from 10.1.1.2
[E][Preferences.cpp:472] getString(): nvs_get_str len fail: CanBaud NOT_FOUND
[E][Preferences.cpp:472] getString(): nvs_get_str len fail: CanBaud NOT_FOUND

In browser:

&

CAN Hacker connected to esp, but it cannot receive and send packets

[gabryelreyes]

The NVS Errors are not fatal. This just means that there are no parameters stored on the NVS yet.
Regarding Sending and Receiving, are you correctly setting your Baudrate and Opening the CAN Channel using the Lawicel Commands?

Regarding the errors on the Web Interface, you can open the web console to read which errors occur in the Javascript code of the frontend

[Slenkis]

When send Lawicel Command ("D[CR]") from browser:

resistance between CAN L and CAN H = 60omh,
voltage between CAN L (or CAN H) and GND = 1.5v (!!!!)

[gabryelreyes]

This should not have anything to do with CAN, as the D command was only implemented to read the current status of the system and send it to the web interface periodically. It has no influence on the Bus itself: implementation here

Edit: Here to the Documentation on the "D" Command

You could try activating the auto-start, in that way the start values will be saved in the NVM.

[gabryelreyes]

Have you opened the CAN Channel? Looks like you have not (from the screenshot of the console). That could explain the voltages you are reading.

Please read the Lawicel Documentation on how to open the channel ("S" command to set a Baudrate. "O" command to open the channel)

You could try sending S6 to set it to 500 kbps, and then O to open the channel. And then measure again.

[Slenkis]

Channel does not open.. And autostart dont saved

[Slenkis]

Arduino Uno + MCP2515 + TJA1050
ESP32 + VP230 (SN65HVD230D)

From Arduino to ESP32

From ESP32 to Arduino

[gabryelreyes]

Are you receiving any confirmation or message each time you send a command? The console should be answer with OK or Error each time you try to open the channel.

Could you please try it using the Serial Interface?

static Lawicel gProtocolLawicel(gSerialAdapter, gSja1000Adapter, gFlashAdapter);

void setup()
{
    Board::init();
    if (!gProtocolLawicel.begin())
    {
        Board::haltSystem();
    }
}

void loop()
{
    if (!gProtocolLawicel.executeCycle())
    {
        Board::blinkError(250);
    }
}

Then you can send S6 and O through the serial monitor, and it should answer with 0x13 (OK) or 0x07 (Error).

If this works and you can send messages, then the problem is in the websocket, but if it does not work and you cannot send messages with it, then the problem is somewhere else.

[Slenkis]

I am open Arduino IDE serial monitor, reset ESP32 and send O[CR]. I didn't get anything in response...

[gabryelreyes]

Does the Serial Monitor append the [CR] (also seen as \r) automatically, or are you writing it yourself? Normally the Serial monitor appends it but it could you could have a different configuration

[Slenkis]

Without [CR] word after O (see photo) the result has not changed..

[gabryelreyes]

Yes, you dont have to write the word CR but only O. But this is weird, as I just tested it and the ESP32 responds as it should.

Have you tested the ESP32 with the VP230 using only a CAN Bus Example? Example

I do not have a transceiver with me right now in order to further diagnose your problem, but I will test in a couple of day as soon as I have one.