• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 30 subscribers
  • Views 344 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LAUNCHXL2-RM57L: Debugging and communication capabilities

Federico Silva
Intellectual 795 points
Part Number: LAUNCHXL2-RM57L
Other Parts Discussed in Thread: TM4C129ENCPDT

Hello,

We are developing a board which will replace the Launchpad board and I have some doubts:

1) We are using the microUSB for serial communication with a PC. As per the schematic, the TM4C129ENCPDT seems to translate the USB to UART and communicate to the LIN1 module; is that so? To replace it, we would just need a USB-UART chip connected to LIN1?

2) We currently assign a name to the serial port, ie 'System'. Is that a possibility with any USB-UART chip?

3) To program the uC, we just need to connect a XDS-like external debugger to the TDO, TMS, TDI, TCK, RTCK, NTRST and MR_PB?

4) What does MR_PB do?

Thanks,

Federico

  • 0
    TI__Mastermind 21425 points
    Hello,
    You can use any UART/USB bridge with 3.3V I/O support.
    To use external JTAG, you need to connect TDI, TDO , TCK, TMS, nTRST (nTRST signal is optional but you should test it with your probe. Reset could be done by TCK and TMS). RTCK is optional as well. If you emulator supports RTCK and you don't wont to use it, leave RTCK on MCU floating (or connect it to GND) and shorten RTCK and TCK at emulator side.
    MR-PB is A System Reset (SRST) signal and it is optional. This signal resets whole system.


    Best regards,
    Miro