TMS570LS1224: Can signal transitions on MIBSPI5NCS[0] (pin32) generate an interrupt

Marcus Coxon

Part Number: TMS570LS1224

Our system design has a hardware error signal, for which transitions to low indicate an error condition, connected to TMS570 MIBSPI5NCS[0]. Is it possible to config the TMS570 so that such transitions cause an interrupt to be generated?

over 3 years ago

0 QJ Wang over 3 years ago

TI__Guru**** 196306 points

Hi Marcus,

The MibSPI5NCS[0] can be used as GIO, but it is not capable to generate interrupt.

0 Marcus Coxon over 3 years ago in reply to QJ Wang

Prodigy 250 points

Hi QJ, thanks for confirmation of what I suspected was the case. An earlier design had the error signal connected to N2HET1[11]; I assume that this input could be configured to gen an interrupt.

Marcus

+1 QJ Wang over 3 years ago in reply to Marcus Coxon

TI__Guru**** 196306 points

Hi Marcus,

N2HET1 pins don't generate input interrupt either.

But if program code to N2HET RAM to capture input signal at N2HET1[11] pin using NHET ECNT instruction, the code can detect the falling or/and rising edge of the input signal and generate interrupt.

0 Marcus Coxon over 3 years ago in reply to QJ Wang

Prodigy 250 points

Thanks for the confirmation.

Marcus

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TMS570LS1224: Can signal transitions on MIBSPI5NCS[0] (pin32) generate an interrupt