multiple interrupt question

[JimTal001]

I tried your code and of course it worked as expected. I then modified it adding the RTC sleep to see what happens. It crashed (meaning no response from REPL and SD card).

I used pyb.usb_mode('CDC+MSC') in the boot.py

Code: Select all

import pyb
import micropython
micropython.alloc_emergency_exception_buf(100)

rtc = pyb.RTC()
rtc.wakeup(10000) # every 10 sec

led1 = pyb.LED(4) # 4 = Blue
led2 = pyb.LED(3) # 3 = Yellow

pin = pyb.Pin('SW', pyb.Pin.IN, pull=pyb.Pin.PULL_UP)

def callback(line):
	led1.toggle()
	if pin.value(): # 1 = not pressed
		led2.off()
	else:
		led2.on()

ext = pyb.ExtInt(pin, pyb.ExtInt.IRQ_RISING_FALLING, pyb.Pin.PULL_UP, callback)

def mainloop():
	while True:
		print("wakeup time")
		pyb.delay(1000)
		pyb.stop() # go to sleep until next wakeup			

mainloop()

[JimTal001]

You are correct, I moved the pin to X1 and it works fine.

Any comment about the RTC.wakeup() and Interrupt issue I posted earlier?

[dhylands]

Your code actually seems to be working fine.

On the usb-serial REPL, I only ever see the very first output of 'wakeup time'.

However, if I connect a USB-to-serial converter on UART6 (Y1/Y2) and modify the code to do:

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uart = pyb.UART(6,115200)
pyb.repl_uart(uart)
print("REPL is also on UART 6 (Y1=Tx Y2=Rx)")

then this is what I see on UART6:

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>>> import rtc_int
REPL is also on UART 6 (Y1=Tx Y2=Rx)
wakeup time
wakeup time
wakeup time
wakeup time
wakeup time
wakeup time
wakeup time
wakeup time
wakeup time
wakeup time
wakeup time
wakeup time
wakeup time
wakeup time

What's happening is that the USB REPL stops working because the board is going to sleep and it stops responding to the host. When you say that the sdcard stops working, I think you mean that the USB Mass Storage connection stops working, and I think that's for the same reason.

[JimTal001]

Great! my usb serial converter should be coming in today.
Thanks!!