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AM4378: Interrupt latency

Part Number: AM4378


Hi all,

I have generated 1 msec periodic interrupt using dmtiemr1 with starterware (pdk_am437x_1_0_5\packages\ti\starterware).

GPIO is set to High at the beginning of this interrupt function, but it actually becomes High at 1.05 msec.

That is, the interrupt latency of dmtimer1 is assumed to be about 0.5 msec.

Is this value reasonable? Please tell me if there is any improvement method.

Best regards,

Sasaki