I am using PC parallel port to send and Rx the message to ARM processor.
This Arm processors is exclusively for rx and Tx the message to parallelport.
Whenever I start the communication I could able to send and Rx the messgage withinn 200usec.
But after 1 or 2 minuites Tx and Rx message will take 5000 usec and 200 usec respectively.
But after sometime(random time) Tx and Rx message takes random amount of time i.e 30/40/10/100/0.2/5/200msec.
Could anybody give me an hint. What may be root cause for this type of response time.
Thanks and Regards