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Emax

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Re: [emax] Re: RS422 fun

2008-11-01 by Michael Wisbech

Could it be that the computer is too fast for the EII ?
try slowing the script down, sending smaller blocks at 'x' seconds interval.
maybe 5 bytes at the time?


>But when I the command
>sring or the databytes in one move, the EII starts complaining.
>Strange. At the other hand this might proove that it's a problem with
>timing...
>I have no timing problems for receiving data from the EII.


Well I am just guesing actually
cheer up with the good work.
Could be major with upgrade packs of the emu stuff.

Michael


At 29-10-2008 21:35, you wrote:

>A small example: the command to send 5 bytes to a certain position in
>the EII memory is a stream of 4 bytes, e.g. FF 00 96 05. Then the EII
>should answer with a kind of ACK (one byte) after which it expects
>the actual 5 data bytes to be sent from the computer. Now when I send
>the command byte after byte with pauses of 2 seconds between them,
>it's OK for the EII. After receiving the ACK from the EII I can send
>the 5 actual data bytes one by one, again one by one and even with
>huge elapstime in between them, that's still fine for the EII. After
>receiving the last byte it ACKs that it's OK. But when I the command
>sring or the databytes in one move, the EII starts complaining.
>Strange. At the other hand this might proove that it's a problem with
>timing...
>I have no timing problems for receiving data from the EII.


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