Pin irq issue

[chrol]

Hi,

I am trying a very simple "if button pressed" scenario - and my wipy doesn't like it.

I have tried based on a class and based on a simple method - with and without parameters. Every time I press the button on the expansion board I get the error message below the code.

I guess it is really picky about something - I just wish it would be better at explaining what...

Has anyone else been able to use an interrupt handler?

from machine import Pin
import micropython
micropython.alloc_emergency_exception_buf(100)
counter=0
led2=machine.Pin('P9',mode=Pin.OUT,pull=Pin.PULL_UP)
class Interrupter(object):
    def button_handler(pin):
        return
#    main.counter=1
#    led2(0)
#    led2.toggle()

inter = Interrupter()

button=Pin('P10',mode=Pin.IN, pull=Pin.PULL_UP)
button.irq(trigger=Pin.IRQ_FALLING,handler=inter.button_handler)

Error message:

connected with Linksys3, channel 11
MicroPython v1.8.6-13-ge1a0670 on 2016-11-18; WiPy with ESP32
Type "help()" for more information.
>>> Guru Meditation Error of type LoadProhibited occurred on core   0. Exception was unhandled.
Register dump:
PC      :  40081882  PS      :  00060031  A0      :  800816bf  A1      :  3ffd49e0  
A2      :  3ffb11f0  A3      :  0000000d  A4      :  3ffd4a98  A5      :  00400461  
A6      :  ffffffff  A7      :  00000001  A8      :  80081882  A9      :  3ffd49c0  
A10     :  00000000  A11     :  3ffc4a60  A12     :  3ffc4a60  A13     :  00000000  
A14     :  00000001  A15     :  00000001  SAR     :  00000020  EXCCAUSE:  0000001c  
EXCVADDR:  00000000  LBEG    :  00000000  LEND    :  00000000  LCOUNT  :  00000000  
CPU halted.

[chrol]

I still can't get this to work with 1.0.0b1 firmware :(

[LoneTech]

I have (by the way, your method is missing a self argument, which led to an unhandled exception), but it seems to be broken now (0.9.5.b1). Code that used to work produces LoadProhibited, apparently inside mp_irq_handler.

>>> from machine import Pin
>>> led=Pin('G16',mode=Pin.OUT)
>>> button=Pin('G17',pull=Pin.PULL_UP)
>>> irq=button.irq(trigger=Pin.IRQ_FALLING, handler=lambda b: led.toggle())
>>> Guru Meditation Error of type LoadProhibited occurred on core   0. Exception was unhandled.
Register dump:
PC      :  400819fa  PS      :  00060031  A0      :  80081767  A1      :  3ffd5430
A2      :  3ffb1170  A3      :  0000000d  A4      :  3ffd54e8  A5      :  00400461
A6      :  ffffffff  A7      :  00000001  A8      :  800819fa  A9      :  3ffd5410
A10     :  00000000  A11     :  3ffc54a0  A12     :  3ffc54a0  A13     :  b33f0000
A14     :  b33fffff  A15     :  00060d23  SAR     :  0000001b  EXCCAUSE:  0000001c
EXCVADDR:  00000000  LBEG    :  00000000  LEND    :  00000000  LCOUNT  :  00000000
CPU halted.