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**CAPL Functions** » **K-Line** » **KLine\_SetP1ECU**

# KLine\_SetP1ECU

[Valid for](../../../Shared/FeatureAvailability.md): CANoe DE

## Function Syntax

```
long KLine_SetP1ECU(dword P1_us)
```

## Description

Sets the interbyte time of a response.

## Parameters

* **P1\_us**: P1 in us\
  Value range: 0 – 650000.

## Return Values

On success 0, otherwise a value less than 0.

## Example

```c
on start
{
   KLine_SetP1ECU(10000); // P1 == 10 ms
}
```
