CAN internal loop back mode

[veerajuvh619]

Hi sir,

I am using s32k144 controller i need to perform Power on Built in Test(PBIT). To perform CAN test, how to configure internal loop back. After testing CAN Module should communicate with other controller.

Please help me.

Regards,

Veeraju V Hallikeri.

[Sharath_NXP]

Hello Sir

I using S32K148 and TJA1145_CAN_Transceiver .

Here when i send CAN ID 0x50 from Canalyzer , i'm getting an echo of same in CAN ID 0x601.

i also checked that  FDCTRL[TDCEN] = 0 , yet i'm seeing the echo messages.

Kinldy help me stop this echo (0x601)

Best regards

Sharath 

[lukaszadrapa]

Hi,

there's LPB bit in CTRL1 register:

If you use SDK, you need to create new configuration and select loop back mode:

Regards,

Lukas