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canGetConfiguration, canSetConfiguration

Valid for: CANoe DE • CANoe:lite DE

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Function Syntax

long canGetConfiguration(long channel, canSettings settings);
long canSetConfiguration(long channel, canSettings settings);

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Description

The CAN controller parameters can be set or read. canSetConfiguration performs an automatic reset of the CAN controller.

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Parameters

  • Channel: The CAN channel.
  • struct canSettings:
    • float baudrate; // in bit/s
    • unsigned char tseg1, tseg2; // length of the time segments 1 and 2 in time quanta
    • unsigned char sjw; // sync jump width in time quanta
    • unsigned char sam; // number of sampling points (1 or 3)
    • unsigned int flags; // see description below
Flags for canGetConfiguration:
  • Bit Position 0, 1:
    • 0: unknown transceiver
    • 1: Low speed
    • 2: Single wire
    • 3: High speed
  • Bit Position 8:
    • 0x100: The channel is configured for CAN FD
  • All others: Reserved
Flags for canSetConfiguration:
  • Bit Position 0:
    • 0: Normal mode
    • 1: Silent mode (acknowledge not created)
  • All others: Reserved, and must be 0.

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Return Values

  • 1: success
  • 0: error

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Example

int ret;
int channel = 1;
canSettings settings;
settings.baudrate = 1000000;
settings.tseg1=5;
settings.tseg2=2;
settings.sjw=2;
settings.sam=1;
settings.flags = 0;

write("Set 1 MB");
ret = canSetConfiguration(channel, settings);

ret = canGetConfiguration(channel, settings);
if (ret)
{
    write("Settings: baud= %f, tseg1 = %d, tseg2= %d, sjw = %d, sam = %d, flags = 0x%x",
          settings.baudrate, settings.tseg1, settings.tseg2, settings.sjw, settings.sam, settings.flags);
}