Cannot scan two daisy chained Ethercat nodes using stack 1.0.0.5 and revA silicon

PeterN

Other Parts Discussed in Thread: AM3359, AM3357

Hi,

Our first slave nodes using the pre-release 'XAM' AM3359 silicon would scan correctly with Twincat when daisy chained, however the new silicon AM3359 with 1.0.0.5 stack does not scan when two slaves are daisy chained, Twincat does not see any slaves. But the slaves do scan ok separately. Is this a known issue?

over 12 years ago

0 PratheeshGangadhar over 12 years ago

TI__Mastermind 47941 points

Hi,

Please make sure that samples are AM3357/9. Issue looks similar to this thread http://e2e.ti.com/support/arm/sitara_arm/f/791/t/242648.aspx

isEtherCATDevice() in tiescappl.c checks for this and prints on the UART console following message for samples other than AM3357/AM3359

Device Type: Non-EtherCAT Device

In Industrial SDK 1.0.0.6 : http://processors.wiki.ti.com/index.php/AM335x_SYSBIOS_Industrial_SDK_01.00.00.06_Release_Notes - we did fix some issues with DL link loop control in EtherCAT firmware and added support for redundancy in PG 2.x silicon.

SDOCM00097587

EtherCAT: Rescan does not detect a slave attached to Port B of active EtherCAT slave unless PortB set to AUTO mode manually before scan

Fixed

I recommend to upgrade to 1.0.0.6 or later. Sometime this week, we will be releasing 1.0.0.7

0 PeterN over 12 years ago in reply to PratheeshGangadhar

Intellectual 365 points

ok, thanks, it appears that 0.6 SDK has resolved the issue.

Processors

Processors forum

Cannot scan two daisy chained Ethercat nodes using stack 1.0.0.5 and revA silicon