All Rights reserved, No Spreading without GOSUNCN Permission
121
AT Command Reference Guide of Module Product
ME3630
10.9.
AT+ZSDT Enable SIM card hot-plug function
This command is supported at
ME3630C2CV1.0B08 version and above.
This command is used to set/query SIM card
hot-swap
,
hot-swap polarity
(high/low level of SIM_DETECT),
card detect pull
(pull
up/down USIM_DETECT pin). And this command will take effect after the module restart.
Command
返回结果
+ZSDT=<n>[,<polarity>,<pull>]<CR>
<CR><LF>OK<CR><LF>
Or
<CR><LF>ERROR<CR><LF>
+ZSDT=?<CR>
<CR><LF>+ZSDT: (0-1)(0-1)(0-3)<CR><LF>
<CR><LF>OK<CR><LF>
+ZSDT?<CR>
<CR><LF>+ZSDT: <n>,<polarity>,<pull><CR><LF>
<CR><LF>OK<CR><LF>
Parameter
<n>:
0 --- close SIM card hot-plug function
(default value)
1 --- open SIM card hot-plug function
<polarity>:
0---low level valid, when SIM card is plugged, USIM_DETECT(PIN41) is low level; when no SIM card, USIM_DETECT(PIN41) is
high level
(default)
.
1---high level valid, when SIM card is plugged, USIM_DETECT(PIN41) is high level; when no SIM card, USIM_DETECT(PIN41) is
low level.
<pull
>: this parameter is used to set USIM_DETECT pull up or down; if there is USIM_DETECT external pull up,
<pull> should be 0; if there is no SIM_DETECT external pull up, <pull> should be 3.
0 --- NO_PULL
(default value)
1 --- PULL_DOWN
(
not recommend
)
2 --- KEEPER
(
not recommend
)
3 --- PULL_UP
Example
AT+ZSDT=0
OK
AT+ZSDT=1,1,3
OK
AT+ZSDT?
+ZSDT: 1,1,3
OK
AT+ZSDT=?
+ZSDT: (0-1) (0-1) (0-3)