Yahoo Groups archive

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

Index last updated: 2026-03-31 23:44 UTC

Message

Re: E-loader Help

2009-04-11 by steve_the_composer

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.

Attachments