Wizfi210 - Possibly Low Battery 문의
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RE: Wizfi210 - Possibly Low Battery 문의
by ssekim ·
(1) 아래 명령어에서 특별하게 잘못된 점은 없어 보입니다.
다만, AT+XDUM=10 명령어는 AT+XDUM=1로 설정하시는 것이 맞습니다.
아래 문서를 참고하시기 바랍니다.
wiznet.co.kr/Admin_Root/UpLoad_F … _V130E.pdf
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AT+XDUM Format AT+XDUM=n Meaning
This command is to set whether Notification from WizFi210 regarding of some event become enable.
n=1 (Notification Message is disable)
n=0 (Notification Message is enable)
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(2) AT 커맨드를 입력해도 변화가 생기지 않는 현상
Data mode가 되어 AT 커맨드를 입력해도 Data로 처리가 됩니다.
이 때에는 "+++"를 이용하여 Command mode로 빠져나와야 합니다.
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4.1. AT command mode
AT command mode is default communication mode between WizFi210 and user’s system. WizFi210 treats all received data from user as AT command. If all received data follows correct command format, WizFi210 returns a reply to user’s system.
is done by Auto Connection command.
After executing auto connection commands like ATA, ATA2 and ATO, and TCP connection with the peer system is established, or UDP socket is open, then WizFi210 becomes Data mode.
can be done by two method. One is using SW escape sequence(it is +++) or HW Trigger and the other is to close the established Auto Connection session. Using SW escape sequence is not to close the established Auto Connection session, It just only to transit its mode to AT command mode in order to execute some AT command.
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(3) [UnExpected Warm Boot(Possibly Low Battery)]
이 메시지는 전원 인가시에 나오는 메시지라고 보시면 됩니다.
WizFi210의 GPIO, UART 또는 다른 Pin에 미세한 전압이 있는 상태에서, 전원이 인가(또는 Reset)되면 나타납니다.
일반적인 부팅 메시지라고 보셔도 됩니다만, (Reset을 하지 않았는데도) 갑자기 저 메시지가 나타나면 문제가 있는 것으로 판단하여 원인 파악을 하셔야 합니다.