After set timer, ampy doesn't work

[jerrycai73]

I'm using timer to get input value from a Rotary encoder .
timer = machine.Timer(0)

Code: Select all

def handleInterrupt(timer):
	global last
	global e 
	global d
	value = e.getValue()
	d = value - last
	last = value;
	if d != 0:
 		print("rotary::" , str(d))
 	
timer.init(period=200, mode=machine.Timer.PERIODIC, callback=handleInterrupt)

The code works well. But when I tried to upload code again, with following command:
ampy -p com9 put main.py

I got "could not enter raw repl". If I removed main.py for esp8266 and reboot. the ampy woks.

Any solution for this?

[jimmo]

I got "could not enter raw repl". If I removed main.py for esp8266 and reboot. the ampy woks.

Because ampy uses the REPL to send/receive data, anything that your program prints out will confuse ampy.

Unfortunately there's no way for ampy to stop your ISR from running -- if it does a soft reset, then main.py will start again, and if it just does a Ctrl-C, then the ISR is still registered in the background.

I would suggest one of two things:
- Detect if a button is being held at startup, and in which case don't start your program (including not registering the ISR). That way ampy will run as normal.
- Don't do anything in main.py automatically. Let the user start the program manually from the repl() (e.g. provide a run() method that starts everything).

[jimmo]

In general though, instead of using ampy, I recommend either pyboard.py or rshell.

pyboard.py has a neat feature where you can run your program from RAM, ratehr than copying the file to the board. So when your board restarts, nothing is running until you run it with pyboard.py

See http://docs.micropython.org/en/latest/r ... rd.py.html

[jerrycai73]

Thanks a lot.
I'll try it