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Emu XL-7 & MP-7 User's Group

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Re: [xl7] Re: E-loader Help

2009-04-11 by Aaron Eppolito

Steve, you're awesome.  Just thought I'd mention.


----- Original Message ----
From: steve_the_composer <smw-mail@...>
To: xl7@yahoogroups.com
Sent: Friday, April 10, 2009 7:34:34 PM
Subject: [xl7] Re: E-loader Help

Update of e-loader "Get sequence" [transfer from E-Mu sequencer to computer] problem.
*If ID = 0, sequencer transfers.
*If ID > 0, transfer fails.
E-Mu sends songs packets 1 and 2 (universal system exclusive format).
e-loader (java console) reports a checksum error and sends NAK. 
It looks like the the actual cs = the "should be" cs + sysex ID.
(In snippet 1, ID was 64; in snippet 2 ID was 5; in snippet 3 ID was 1.) 

CONSOLE SNIPPET 1:
bad checksum received. packetNum: 0 cs was: 117 should be: 53
sending NAK

CONSOLE SNIPPET 2:
bad checksum received. packetNum: 0 cs was: 48 should be: 53
sending NAK

CONSOLE SNIPPET 3:
bad checksum received. packetNum: 0 cs was: 127 should be: 126
sending NAK
------------------------------

SUGGESTION:
If "Get sequence" transfer fails:
(1) check sysex ID [E-Mu sequencer and e-loader]
(2) check for bad checksum error in java console [e-loader]
(3) if "was" cs - "should be" cs = sysex ID, change ID to 0.

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