[lwip-users] Examples/Documentation Incorrect Timeout Code

[HM2]

I think there is a mistake in the examples and documentation.

There are many places where timeouts are given as below:

if ( (clock()-last_arp_time) >= (ARP_TMR_INTERVAL * CLOCK_MS) )

Assuming that clock() and last_arp_time are given as ticks,

and assuming that ARP_TMR_INTERVAL is going to be given in mSec,
and CLOCK_MS is the number of mSec/tick, then the above is incorrect.

The units would be: (ticks-ticks = mSec * mSec/Tick)     That's wrong.

The correct formula should be:

if ( (clock()-last_arp_time) >= (ARP_TMR_INTERVAL / CLOCK_MS) )

The units are: (ticks-ticks = mSec * ticks/mSec)  or (ticks = ticks)

Chris.