2368421_en-US

[#1]

Integration of UDS Bootloader and J1939 Stack on CAN

Description:

Hi Team,

I am working on S32K344 using S32DS 3.6.5 with RTD 3.0.0

Current implementation:

• FlexCAN CAN communication
• UDS bootloader over ISO-TP
• J1939 application communication
• GCC compiler
• AUTOSAR RTD drivers

I need guidance regarding coexistence of:

1. UDS diagnostics (ISO14229)
2. ISO-TP transport layer
3. J1939 communication stack
4. ensure CAN termination resistor configuration shall be select through software in S32k344 and How to do ?
5. explain how CAN termination will designed in transceiver and MCU 

Questions:

1. What is the recommended architecture for running UDS and J1939 simultaneously on same CAN controller?
2. Is it recommended to use separate CAN message buffers for UDS and J1939?
3. How should CAN ID filtering be configured?
4. Are there any NXP reference examples for:
   • UDS bootloader
   • J1939 stack
   • Shared FlexCAN usage
5. Any known limitations in RTD 3.0 for this use case?

Controller:

• S32K344
• RTD 3.0
• S32DS 3.5

Thanks.