Re: [etherlab-users] Maximum mailbox size?

2014-07-07 Thread Dave Page
On 2014-07-08 11:21, Gavin Lambert wrote: Though one of my original questions remains: If it's not supposed to work, shouldn't the master just select a smaller size if it doesn't support large sizes? While it's supposed to respect the slave's preference, ultimately the master is in control of m

Re: [etherlab-users] Maximum mailbox size?

2014-07-07 Thread Dave Page
On 2014-07-08 13:55, Gavin Lambert wrote: On 8 July 2014, quoth Dave Page: A brief look at the SSC suggests the master is responsible for specifying the mailbox size each transfer via the Length parameter in the mailbox header. The FMMU mailbox protocol requires the last mailbox byte to b

Re: [etherlab-users] Maximum mailbox size?

2014-07-07 Thread Gavin Lambert
On 8 July 2014, quoth Dave Page: > A brief look at the SSC suggests the master is responsible for > specifying the mailbox size each transfer via the Length parameter in > the mailbox header. The FMMU mailbox protocol requires the last mailbox > byte to be accessed to hand over the mailbox buf

Re: [etherlab-users] Maximum mailbox size?

2014-07-07 Thread Gavin Lambert
On 7 July 2014, quoth Dave Page: > On 2014-05-20 22:00, etherlab-users-requ...@etherlab.org wrote: > > what is the limit for the maximum supported mailbox size? Either in > > EtherCAT in general or in EtherLab in particular? > > ETG1000.5 V1i02 page 43 indicates that the mailbox can be from

Re: [etherlab-users] Maximum mailbox size?

2014-07-07 Thread Dave Page
On 2014-05-20 22:00, etherlab-users-requ...@etherlab.org wrote: what is the limit for the maximum supported mailbox size? Either in EtherCAT in general or in EtherLab in particular? ETG1000.5 V1i02 page 43 indicates that the mailbox can be from 38 to 1486 bytes. Best regards -