ESP wroom 32 old vs new not able to connect to Can

Using Arduino Microcontrollers
1

Hello,
I am currently using ESP wroom 32, (Do it ESP 32 dev kit1)
In which I am having few older versions which are working with my code for connecting with telnet, but newer versions are unable to connect.

Is there any possibility and how can we resolve it.

2

You'll need to find out why it isn't connecting!

  • is the request reaching the server?
  • is the server rejecting the connection?
  • if the server does reply, is the reply reaching your client?
  • etc, etc, ...
3

Sorry ,
When observed in detail,
It is working with the telnet, but the data is not pushed on CAN protocol.
Is it possible that the old and new ESP Wroom 32 may have different bootload?

4

The old version is as below

14:21:29.894 -> ets Jun 8 2016 00:22:57
14:21:29.941 ->
14:21:29.941 -> rst:0x1 (POWERON_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
14:21:29.941 -> configsip: 0, SPIWP:0xee
14:21:29.941 -> clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
14:21:29.941 -> mode:DIO, clock div:1
14:21:29.941 -> load:0x3fff0030,len:1184
14:21:29.941 -> load:0x40078000,len:13260
14:21:29.941 -> load:0x40080400,len:3028
14:21:29.941 -> entry 0x400805e4
14:21:31.253 -> Starting...
14:21:31.863 -> Connecting Wifi

And the new version which is not working is showing below log file.

14:20:57.315 -> ets Jul 29 2019 12:21:46
14:20:57.315 ->
14:20:57.315 -> rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
14:20:57.315 -> configsip: 0, SPIWP:0xee
14:20:57.315 -> clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
14:20:57.315 -> mode:DIO, clock div:1
14:20:57.315 -> load:0x3fff0030,len:1184
14:20:57.362 -> load:0x40078000,len:13260
14:20:57.362 -> load:0x40080400,len:3028
14:20:57.362 -> entry 0x400805e4

5

Are both boards running the exact same Arduino program?
Are they connected to the same CAN bus at the same time?

If so, you probably have CAN bus IDs colliding and causing a 'bus off' state.

6

Both boards running at same code and same hardware.
They are not connected at same time I am taking out one board and putting other one by one.
So it wont have same address issue.
doubt it may have bootload file issue
but dont know how to change and which to put

7

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