<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Anyone use the ATSAMD21G18 M0 aka Arduino Zero or Adafruit Feather M0? I’m having issues with getting more than one interrupt attached using the Arduino IDE.<div class=""><br class=""></div><div class="">Basically, I need the thing to sleep and be woken up by either having my LIS3DH accelerometer raise a pin (based on a threshold) or by the user pressing a button. I can get one or the other working but not both. If I try to attach a second interrupt, even after having detached the first, I get a hard crash.</div><div class=""><br class=""></div><div class="">The Adafruit forums haven’t been any help. Most likely this is going to require actual setting of registers by hand, but does anyone have any M0 interrupt experience?</div><div class=""><br class=""></div><div class="">By the way, I did consider using something like a 32u4 (which I know would work regarding interrupts), but the issue is in the feather form factor, it doesn’t have interrupt capable pins assigned to the buttons on the Feather OLED/button shield I’d like to use. Also, 32u4 lacks an integral RTC, and I don’t want to stack another shield as that would make it un-wearable.</div><div class=""><br class=""></div><div class="">Maybe I need to get an actual Arduino Zero with a JTAG header and buy something like a Segger J-Link.<div class="">
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