> For the complete documentation index, see [llms.txt](https://sdk.twelite.info/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sdk.twelite.info/hw-api-ref/perifuraru/timer/timerraiburari/vtimerstart.md).

# vTimerStart()

## 解説

Timer を開始する。

本関数は、既に開始済みのTimerについても呼び出し可能です。Duty 比の変更を行う場合などに利用します。

## 引数

| 型                                                                                  | 名前   | 詳細          |
| ---------------------------------------------------------------------------------- | ---- | ----------- |
| ​[tsTimerContext](/hw-api-ref/perifuraru/timer/timerraiburari/tstimercontext.md)\* | psTC | タイマー設定の構造体。 |

## 戻り値

なし

## サンプル

```c
// initialize and start
vTimerConfig(&sTimerApp); // initialize
vTimerStart(&sTimerApp); // start

// change duty
sTimerPWM.u16Duty = 256; // set new duty ratio
vTimerStart(&sTimerPWM); // just start again to change duty
```


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