MEIG SLM770A - AT Command Reset

SLM770A Module Hardware Design Manual
MeiG Smart Technology Co., Ltd 77/77
TVS
RESET_N
S2
Close to S2
Figure 12 Reference circuit of RESET_N by using button
The reset timing figure is as follows:
VBAT
RESET_N
STATUS
300ms
4s
V
IL
0.5V
V
IH
1.3V
Figure 13 Reset timing of RESET_N
Note:
1. SLM770A module pulling down RESET_N only resets the baseband chip inside the module and
does not reset the power management chip.
2. When the RESET_N pin of SLM770A module is pulled down, the baseband chip is in the reset state,
and the chip system restarts after release.
3. Ensure that PWRKEY and RESET_N pins do not have large load capacitors, up to 10uF.
3.8.2 AT Command Reset
Enter AT+RESET command in SLM770A UART or USB AT interface to reset and restart SLM770A.