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Delay Due to LPC2119 GPIO response

Started by rva2001me July 10, 2008
Hello readers,

I have connected the LPC2119 GPIO to PC paralel port.

I could able to send message (10 bytes) to LPC2119 in 0.2 msec.

But after sometime means after sending 13 to 15 to messages, time
needed to send the message from Paralel port to GPIO is may be
5/10/20/30/40 secs.

But the next immediate message I could able to send in 0.2 milisecond
only.

Once again may be 28 or 30 message takes long to time transmit.

Can anybody give me hint.

What may be the cause why message transmission is getting delayed.
Thanks and regards
Ravi

An Engineer's Guide to the LPC2100 Series