Hi!... In a work I made using RTLinux for time synchronization I found that the worst case delay between the interrupt and the interrupt acknowledgment by the computer (a PIII 500MHz and 128MB of RAM) was always less than 6 us and typically 5 us. For the interrupt signal I used the Pulse Per Second (PPS) signal from a GPS receiver connected to the parallel port interrupt pin. This pulse had a maximum deviation of 200ns. I measured the delay in an oscilloscope between the rise of this signal and the rise of acknowledgment signal sent through one of the parallel port bits.
Sérgio Rui Silva ----- Original Message ----- From: "yeshayahu, Liat" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Sunday, October 14, 2001 8:32 AM Subject: [rtl] rtlinux interrupt latency results > > Hi all, > > I would like to know please if there is written or self experiment > > result information > > about rtlinux interrupt latency period with load or/and unload machine (of > > course in > > a certain computer power and a certain rtlinux version data ) > > Thx, > > Liat > > > -- [rtl] --- > To unsubscribe: > echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR > echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED] > -- > For more information on Real-Time Linux see: > http://www.rtlinux.org/ > -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED] -- For more information on Real-Time Linux see: http://www.rtlinux.org/
