Skip to main content
Open topic with navigation CAPL Functions » FlexRay » resetFlexRayCCEx

​
resetFlexRayCCEx

Valid for: CANoe DE Note
The resetting of the FlexRay communication controller takes considerable time (approx. up to 100 ms). During this time the complete execution including any remaining bus simulation is halted/suspended. Also bus events from other buses are not recognized. Therefore this function should only be used in one channel configurations. For an alternative functionality see Example 2.

​
Function Syntax

long resetFlexRayCCEx (int channel, int wuChMask, int wuCount, int wuTxIdle, int wuTxLow, char[] cfg);

​
Description

This function initializes the FlexRay Communication Controller (CC) and generates the specified wake-up pattern before reintegration in the cluster or the start-up.

​
Parameters

  • channel: FlexRay channel (cluster number)
  • wuChMask: Channel for the wake-up pattern.
    Values:
    • 1: Channel A
    • 2: Channel B
  • wuCount: Number of repetitions (2 – 63) of the wake-up symbol in a wake-up pattern.
  • wuTxIdle: This number designates the number of idle bits in a wake-up symbol. According to protocol specification, this should result in 18 µs.
  • wuTxLow: This number designates the number of low bits in a wake-up symbol. According to protocol specification, this should result in 6 µs.
  • cfg: Character data array. This is currently not used and is of no importance.

​
Return Values

—

​
Example

Example 1
The following program resets the FlexRay interface of the attached channel and sends a wake-up (if network is idle), when the <W> key is pressed. 
on key 'w'
{
   int wuChMask = 3;   // send wake-up on both channels
   int wuCount  = 4;   // send symbol 2 times (range 2-63)
   int wuTxIdle = 180; // idle time of symbol in bit (range 0-255)
   int wuTxLow = 60;   // low time of symbol in bit (range 0-63)
   CHAR cfg[1];        // <cfg> -> not used yet
   resetFlexRayCCEx(%CHANNEL%,wuChMask,wuCount,wuTxIdle,wuTxLow,cfg);
   Write("FlexRay CC %d is reset and sending a wakeup.", %CHANNEL%);
}
Example 2
In order to prevent the suspension during the call of ResetFlexRayCCEx the reset can be executed asynchronously by manipulating the Protocol Operation Control (POC) state machine of the FlexRay Communication Controller directly. See Reset of the CC by its POC.