# swtmr
## Command Function
This command is used to query information about system software timers.
## Syntax
swtmr \[_ID_\]
## Parameters
**Table 1** Parameter description
Parameter
Description
Value Range
ID
Specifies the ID of a software timer.
[0,0xFFFFFFFF]
## Usage
- If no parameter is specified, information about all software timers is displayed.
- If the **ID** parameter is specified, information about the specified software timer is displayed.
## Example
Run the following commands:
- swtmr
- swtmr 1
## Output
Example 1: information about all software timers
```
OHOS # swtmr
SwTmrID State Mode Interval Count Arg handlerAddr
---------- ------- ------- --------- ------- ---------- --------
0x00000000 Ticking Period 100 77 0x40802a50 0x4037b8a0
SwTmrID State Mode Interval Count Arg handlerAddr
---------- ------- ------- --------- ------- ---------- --------
0x00000001 Ticking Period 1000 876 0x00000000 0x4037fc04
SwTmrID State Mode Interval Count Arg handlerAddr
---------- ------- ------- --------- ------- ---------- --------
0x00000002 Ticking Period 100 76 0x00000000 0x403727f4
SwTmrID State Mode Interval Count Arg handlerAddr
---------- ------- ------- --------- ------- ---------- --------
0x00000016 Ticking NSD 10 6 0x8021e000 0x401fe7d8
SwTmrID State Mode Interval Count Arg handlerAddr
---------- ------- ------- --------- ------- ---------- --------
0x00000079 Ticking NSD 30000 1749 0x406189d8 0x40160e1c
```
Example 2: information about software timer 1
```
OHOS # swtmr 1
SwTmrID State Mode Interval Count Arg handlerAddr
---------- ------- ------- --------- ------- ---------- --------
0x00000001 Ticking Period 1000 841 0x00000000 0x4037fc04
```
**Table 2** Output
Parameter
Description
SwTmrID
ID of the software timer
State
Status of the software timer
The value can be UnUsed, Created, or Ticking.
Mode
Mode of the software timer
The value can be Once, Period, or NSD (one-shot timer that will not be automatically deleted after the timer has expired).
Interval
Number of ticks for the software timer
Count
Number of times that the software timer has been used
Arg
Input parameter
handlerAddr
Address of the callback
> **NOTE:**
>- The **ID** value can be in decimal or hexadecimal format.
>- If the **ID** value is within the range of \[0, _Number of current software timers - 1_\], the status of the specified software timer is returned. For other values, an error message is displayed.