What Zootalaws does not see on this thread that was on prior thread is that, the way I read your info, the machine was moving properly with these settings. Perhaps I jumped to that conclusion prematurely.
From you initial thread, and the flashing re leds, it sounded like you have shorted or somehow electrically corrupted the EEPROM or possibly flash.
Here is Thomas’ most recent email
So I was just able to take some time and play with this. I was able to get the $$ command to work right from the start. (It could be that the other times I tried to use it was after using the TinyG for a while and I overloaded the communication . Not sure…)
I did the recommended :$defa=1, and it did reset to defaults; however it was not successful. M1 still over travels. I did download the firmware GUI from the website and I was able to load in the latest firmware, same result. When I did this, none of my parameters changed. The firmware number was the exact same as what I had loaded on my board so maybe it didn’t actually load because it realized it was already up to date?
I will upload my parameters like you suggested: “If issues continue, copy your full parameter set ($$) to a cloud drive and post a URL for viewing in a new Forum item at …” as soon as I get to my computer this morning.
Quick question about how I hooked up my spindle on/off:
I wired from the “SPIN” pin, out to the spindle power supply on/off switch, and back to a “GND” pin on the TinyG. I know this was wrong because of what happened, but should I have wired to “3.3v” instead of “GND”? OR should I have used a relay? I found very little explaining how that pin functions. I did measure the spindle power supply switch prior to hooking up and it measure 0v across as well as to ground so I don’t believe I supplied an outside voltage to the “SPIN” pin.
From you extended description, I still have to worry about electrical damage.
The SPIN lead is a 3.3v logic signal from the controller. It “might” be able to turn an opto-isolator switch on and off, but for sure can source or sink much power. I have not see an opto-isolator controlled Spindle Power Supply, but they for sure could exist. Perhaps just post a Model number or easier, a URL to where you bought it.
Can I assume you have seen the tinyG wiki at https://github.com/synthetos/TinyG/wiki ?
To summarize, as said above SPIN is logic on(high) off(low)
SPWM is 3v logic PWM interface to variable speed controllers.
Spindle control is via Gcode M3 and M5 commands.
Can we assume that you manually loaded the parameters you provided?
They are somewhat unusual.
I see very few folks with $_sa=0.9 degree motors, but they do exist.
Depending on which FW loader you used I think it would be clear if your FW re-install did not work.
All that said, I would expect the FW version to be the same (440.20) and if you do not see changes in the parameters, that implies we are looking at the default parameter set. But I don’t think the defaults have $_sa=0.9, so I am curious.
When you come back, please comment on your parameters and where they come from. Are you following a guide for a particular machine?
What are you using to interface to tinyG? PC, MAC, etc
Using CoolTerm or perhaps Chilipeppr or other?
Also, provide more info on wiring SPIN to your power supply control.
What you report implies reasonable functionality, communications wise, which seems to rule out SPIN having experienced a 120V AC event, which I would expect to be rather catastrophic.
