Fwd: Delivery Status Notification (Failure)
Amitai Broyde <[email protected]> Fri, 15 Jul 2016 11:45:19 +0000
| Newsgroups | gmane.comp.hardware.bus.can |
|---|---|
| Message-ID | <CACkzUiPeh=0dV-_-Xs+eS8AThn674RcUQ1A56BNj5naUf8MeUQ@mail.gmail.com> |
---------- Forwarded message --------- From: Mail Delivery Subsystem <[email protected]> Date: יום ו׳, 15 ביולי 2016 ב-13:45 Subject: Delivery Status Notification (Failure) To: <[email protected]> Hi, The cable is a controlled 120 OHM cable (5nS/m) by Axon Cables . Don't recall the exact p/n. I would like to extend the bus to about 30m. The dominant to recessive loop worst case delay is 400nS, there are 16 nodes nodes. All nodes clocks' use XOs - several ppm accuracy. What the risk of edgy sampling? it is still 125nS in. Regards, ab בתאריך יום ו׳, 15 ביולי 2016 ב-10:52 מאת John Dammeyer < [email protected]>: <[email protected]> > That puts the sample point at the 87.5% point and is really on the edge. You > haven’t described how long a bus you want to create or what type of cable > you want to use. All that will affect how long a bus you can make at > that bit rate. > > John Dammeyer > Hi, > > I am using 1Mbps CAN network based on Cores running at 8MHz. I would like > to extend the bus length by setting sampling point 125ns before end of bit > time. Current bit sampling time is 250ns before end of bit time. > > Will it work? > > > > Regards, > > ab >The cable is a controlled 120 OHM cable (5nS/m) by Axon Cables . Don't recall the exact p/n. I would like to extend the bus to about 30m. The dominant to recessive loop worst case delay is 400nS, there are 16 nodes nodes. All nodes clocks' use XOs - several ppm accuracy. What the risk of edgy sampling? it is still 125nS in. Regards, ab בתאריך יום ו׳, 15 ביולי 2016 ב-10:52 מאת John Dammeyer < [email protected]>: <[email protected]> > That puts the sample point at the 87.5% point and is really on the edge. You > haven’t described how long a bus you want to create or what type of cable > you want to use. All that will affect how long a bus you can make at > that bit rate. > > John Dammeyer > Hi, > > I am using 1Mbps CAN network based on Cores running at 8MHz. I would like > to extend the bus length by setting sampling point 125ns before end of bit > time. Current bit sampling time is 250ns before end of bit time. > > Will it work? > > > > Regards, > > ab >