reset/abort function gpio2

[runryder912]

As I was configuring the esp32_grbl file, I noticed that the reset pin resets the board and does not abort my cnc machine movement. How would I able to configure the reset pin to function as abort and trigger the alarm state to stop machine movement.

Thanks for your help

[bdring]

Info about control switches is here.

https://github.com/bdring/Grbl_Esp32/wiki/Control-Switches

Make sure they are reporting their state in idle before you try testing with motion.

https://github.com/bdring/Grbl_Esp32/wiki/Help-with-Switch-Problems#checking-switch-status

If you still have problems, please follow this guide to give us information to help solve the problem.

https://github.com/bdring/Grbl_Esp32/wiki/Requesting-Help

[runryder912]

I did some testing with an arduino uno with grbl 1.1. It is responding the way I like. IT stops the program with a short of pin A0 with Alarm 3. This is what I was looking for when I press the estop with the reset/about pin shorted to ground. This kills program. Is this possible with an esp32 [image: image.png] [image: image.png]

…

On Mon, May 10, 2021 at 8:51 AM bdring ***@***.***> wrote: Info about control switches is here. https://github.com/bdring/Grbl_Esp32/wiki/Control-Switches Make sure they are reporting their state in idle before you try testing with motion. https://github.com/bdring/Grbl_Esp32/wiki/Help-with-Switch-Problems#checking-switch-status If you still have problems, please follow this guide to give us information to help solve the problem. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#892 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ATQUGERQWULHL4DHPNWQOCLTM7JGFANCNFSM44QLU5OA> .

[MitchBradley]

You need to provide the information listed in https://github.com/bdring/Grbl_Esp32/wiki/Requesting-Help . Without that information, we cannot deduce what might be going wrong in your situation.

[Protoneer]

I am having similar issue...

I define my pin as follow:
#define CONTROL_RESET_PIN GPIO_NUM_27

Then when I press the button my ESP32 restarts. (I start a movement first G0X1000)

This is the message I get:

Grbl 1.3a ['$' for help]
<Idle|MPos:0.000,0.000,0.000,0.000,0.000,0.000|FS:0,0|WCO:0.000,0.000,0.000,0.000,0.000,0.000>
<Idle|MPos:0.000,0.000,0.000,0.000,0.000,0.000|FS:0,0|Ov:100,100,100>
<Idle|MPos:0.000,0.000,0.000,0.000,0.000,0.000|FS:0,0>
<Idle|MPos:0.000,0.000,0.000,0.000,0.000,0.000|FS:0,0>
<Idle|MPos:0.000,0.000,0.000,0.000,0.000,0.000|FS:0,0>
<Idle|MPos:0.000,0.000,0.000,0.000,0.000,0.000|FS:0,0>
ok
[MSG:Reset via control pin]
[MSG:Reset via control pin]
[MSG:Reset via control pin]
ALARM:3
[MSG:Reset via control pin]
[MSG:Reset Guru Meditation Error: Core 1 panic'ed (Interrupt wdt timeout on CPU1)
Core 1 register dump:
PC : 0x400951d2 PS : 0x00060334 A0 : 0x800943e7 A1 : 0x3ffc0600
A2 : 0x3ffd583c A3 : 0x3ffbced4 A4 : 0x00000001 A5 : 0x00000001
A6 : 0x00060323 A7 : 0x00000000 A8 : 0x3ffbced4 A9 : 0x3ffbced4
A10 : 0x00000018 A11 : 0x00000018 A12 : 0x00000001 A13 : 0x00000001
A14 : 0x00060321 A15 : 0x00000000 SAR : 0x0000001a EXCCAUSE: 0x00000006
EXCVADDR: 0x00000000 LBEG : 0x400014fd LEND : 0x4000150d LCOUNT : 0xfffffff8
Core 1 was running in ISR context:
EPC1 : 0x400938ca EPC2 : 0x00000000 EPC3 : 0x00000000 EPC4 : 0x400951d2

ELF file SHA256: 0000000000000000

Backtrace: 0x400951d2:0x3ffc0600 0x400943e4:0x3ffc0620 0x40092677:0x3ffc0640 0x401706e4:0x3ffc0680 0x40171091:0x3ffc06c0 0x400df9ad:0x3ffc06f0 0x400da652:0x3ffc0710 0x400d8cd6:0x3ffc0730 0x400d8d8a:0x3ffc07d0 0x400df7bc:0x3ffc0890 0x400821b0:0x3ffc08b0 0x400822ad:0x3ffc08d0 0x4008d899:0x3ffc08f0 0x4000bfed:0x3ffbcc50 0x40093a39:0x3ffbcc60 0x40092623:0x3ffbcc80 0x401ed5fe:0x3ffbccc0 0x401dcf69:0x3ffbcce0 0x400efe2e:0x3ffbcd10 0x400f73e1:0x3ffbcd50 0x400e2b49:0x3ffbcd80 0x400eb5a2:0x3ffbcdc0 0x400eb25c:0x3ffbcde0 0x400da5a7:0x3ffbce00 0x400928de:0x3ffbce20

Core 0 register dump:
PC : 0x400938ca PS : 0x00060034 A0 : 0x800940ad A1 : 0x3ffc0270
A2 : 0x3ffbf8c8 A3 : 0x0000cdcd A4 : 0xb33fffff A5 : 0x00000001
A6 : 0x00060021 A7 : 0x0000abab A8 : 0x0000abab A9 : 0x3ffc8fa0
A10 : 0x00000003 A11 : 0x00060023 A12 : 0x00060021 A13 : 0x0000001a
A14 : 0x0000002a A15 : 0x3ffde750 SAR : 0x00000018 EXCCAUSE: 0x00000006
EXCVADDR: 0x00000000 LBEG : 0x00000000 LEND : 0x00000000 LCOUNT : 0x00000000

ELF file SHA256: 0000000000000000

Backtrace: 0x400938ca:0x3ffc0270 0x400940aa:0x3ffc02a0 0x400929cb:0x3ffc02c0 0x40095051:0x3ffc02e0 0x4008d8a2:0x3ffc02f0 0x40222bd7:0x3ffbd540 0x4018bfb2:0x3ffbd560 0x40094075:0x3ffbd580 0x400928de:0x3ffbd5a0

Rebooting...

[Protoneer]

I also tried the abort button while in idle mode with the same results.

[bdring]

@Protoneer I think there is some bounce on the reset pin which is causing the the interrupt to be called many times. The interrupt is printing the message [MSG:Reset via control pin].

Printing from an interrupt is risky and the multiple hits is probably causing the crash. @MitchBradley has identified a few other areas of concern in the control pin handling and started some code changes.

If you want to try some things on your own before his code is merged..

• Remove grbl_msg_sendf(CLIENT_SERIAL, MsgLevel::Info, "Reset via control pin"); in System.cpp
• Try adding some RC filtering to the switch

[Protoneer]

Thanks @bdring ,

I will test the filter and the code changes tonight.

[Protoneer]

@bdring , I did some testing again and #901 has fixed the reboot issue.

I have tested the code changes without adding a pull resister and when the button bounces a bit all I get is a repeat of the unlock message. (I am currently using my tweezer to short the button pins... :) )

<Run|MPos:165.830,0.000,0.000,0.000,0.000,0.000|FS:1000,0|Pn:XYZABC|WCO:0.000,0.000,0.000,0.000,0.000,0.000>
<Run|MPos:168.220,0.000,0.000,0.000,0.000,0.000|FS:1000,0|Pn:XYZABC|Ov:100,100,100>
ALARM:3

Grbl 1.3a ['$' for help]
[MSG:'$H'|'$X' to unlock]

Grbl 1.3a ['$' for help]
[MSG:'$H'|'$X' to unlock]

Grbl 1.3a ['$' for help]
[MSG:'$H'|'$X' to unlock]

Grbl 1.3a ['$' for help]
[MSG:'$H'|'$X' to unlock]

Grbl 1.3a ['$' for help]
[MSG:'$H'|'$X' to unlock]