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TMS570LC4357: Using the pins of the DMM- and RTP-Interface as GPIO

Max Wittekind
Expert 1875 points
Part Number: TMS570LC4357

Hi experts,

we want to use the Pins of the RTP and DMM-Modules as GPIO, but the Safety Manual mentions safety measure DMM1 "Disable the DMM Pin Interface" and RTP1 "Disable the RTP Pin Interface"
Furthermore the manual states in section 6.39.1:
"For the purposes of FIT estimations and safety use, this module is considered strictly as a Debug/Trace related module and active use during an application runtime is not considered even if used solely as GPIO" 

(Q1) Should the RTP and DMM Pins not be used or is there way that would allow us to use the Pins as GPIO?

Thank you and best regards,
Max

  • 0
    TI__Guru**** 197036 points

    Max,

    The RTP and DMM are intended to be used for algorithm calibration and measurement in automotive systems development. It would be expected that DMM and RTP are disabled during production application execution. RTP/DMM pins can not be used as GIO if the modules are disabled.