CAPLfunctionCanFdSetConfiguration

canFdGetConfiguration, canFdSetConfiguration

Valid for: CANoe DE • CANoe:lite DE

Function Syntax

long canFdSetConfiguration(long channel, canSettings abrSettings, canSettings dbrSettings);
long canFdGetConfiguration(long channel, canSettings abrSettings, canSettings dbrSettings);

Description

The CAN controller parameters for arbitration and data phase can be set or read.

canFdSetConfiguration performs an automatic reset of the CAN controller.

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). Only valid for CAN. For CAN FD “sam” is hard coded to 1.
  • unsigned int flags: see description below

Flags for canFdGetConfiguration:

• 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 canFdSetConfiguration:

• Bit Position 0:

  • 0: normal mode
  • 1: silent mode (acknowledge not created)

• All others: Reserved, and must be 0.

Return Values

• 1: success
• 0: error

Example

int ret;
int channel = 1;
CANsettings abrSettings;

CANsettings dbrSettings;

abrSettings.baudrate = 1000000;
abrSettings.tseg1=5;
abrSettings.tseg2=2;
abrSettings.sjw=2;
abrSettings.sam=1;
abrSettings.flags = 0;

dbrSettings.baudrate = 4000000;
dbrSettings.tseg1=6;
dbrSettings.tseg2=3;
dbrSettings.sjw=2;
dbrSettings.sam=1;
dbrSettings.flags = 0;

write("Set 1 MB");
ret = canFdSetConfiguration(channel, abrSettings, dbrSettings);

if (ret)
{
    write("Arbitration settings: baud= %f, tseg1 = %d, tseg2= %d, sjw = %d, sam = %d, flags = 0x%x", abrSettings.baudrate, abrSettings.tseg1, abrSettings.tseg2, abrSettings.sjw, abrSettings.sam, abrSettings.flags);
    write("Data settings: baud= %f, tseg1 = %d, tseg2= %d, sjw = %d, sam = %d, flags = 0x%x", dbrSettings.baudrate, dbrSettings.tseg1, dbrSettings.tseg2, dbrSettings.sjw, dbrSettings.sam, dbrSettings.flags);
}