Noticing weird behavior with notecard/ notecarrier (Notecarrier B, FW: 1.5.3.12460). Attn pin is going high for 0.3ms after arming it on a file. My FW requests a note.get on the file which then receives this response: {“err”:“no notes available in queue {note-noexist}”}. Also nothing has been added …

Hello @abar2437 , Thanks for joining the forums! This is an excellent question, and thank you for including the scope capture. If I am understanding correctly… the bottom line, ending in “}”, “\n” is the tail end of the original {"req":"card.attn", "mode":"arm", .... the top line shows the respon…

Hi Abenezer, Could you try substituting the word “rearm” instead of “arm”: {"req":"card.attn","mode":"rearm,files,..."...} This should avoid the high glitch on the attn pin when the Notecard processes the request. thanks Sean

I also recommend updating the Notecard firmware to 1.5.5 - our newest developer release. [image] Announcing the Q2 2021 Developer Firmware Release Firmware Hello everyone! It’s time for another developer firmware release! We’ve cut a new developer version of …

Hello Zak, Thank you. Can ask you about the resetting note put under the rearm API? "rearm" (Added in v1.5.3) Will arm ATTN if not already armed. Otherwise, resets the values of mode , files , and seconds specified in the initial arm or rearm request (idempotent). Can you clarify in what sit…

Hi @abar2437 , I believe I understand your confusion. The ATTN interrupt is a “latching” interrupt, and it does not automatically reset itself. Therefore, when you arm or rearm the ATTN pin on a file, you are setting a file-specific trigger. Once the file receives an update, the trigger is tripped,…

Strange Behavior Attn Pin: Pin goes high before response to arm

Hardware Notecarrier B

abar2437 July 13, 2021, 6:47pm 2

I have included a work around in MCU FW to not check the attn pin until success response is received, but worth mentioning to devs

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Strange Behavior Attn Pin: Pin goes high before response to arm

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