On May 16 2015 20:22, Takashi Sakamoto wrote:
But, Behringer F-Control Audio 202 (based on OXFW 970) has a quirk to postpone transferring isochronous packet till finish handling any asynchronous packets. In this case, this model is lazy, transfers no packets during several cycle-start packets. After finishing, this model pushes required data in next isochronous packet. As a result, the packet include more data blocks than IEC 61883-6 defines.
This is an actual packet dump. We can see this model postpone transferring packets during handling asynchronous transaction.
FYI
-- Time expressed in clock-ticks of 10.172526 nSec 19657542078 CycleStart dst=0xFFFF label=0 rcode=retry_1 src=0xFFC3 offset=0xFFFFF0000200 cycle_time_data=0x58F3F024 speed=100 19657546326 Streaming length=40 tag=1 channel=0 synchronization=0 speed=400 0000: 02020072 900002E4 40FFFF8B 40000005 [...r....@...@...] 0010: 40FFFFD8 40FFFFFD 40FFFF37 40FFFFA5 [@...@...@..7@...] 0020: 40FFFE81 40FFFF2F [@...@../] 19657554363 CycleStart dst=0xFFFF label=0 rcode=retry_1 src=0xFFC3 offset=0xFFFFF0000200 cycle_time_data=0x58F40024 speed=100 19657559477 Streaming length=40 tag=1 channel=0 synchronization=0 speed=400 0000: 02020076 90000351 40FFFF1C 40FFFF95 [...v...Q@...@...] 0010: 40FFFF01 40FFFEF6 40FFFF2E 40FFFF77 [@...@...@...@..w] 0020: 40FFFEE9 40FFFF72 [@...@..r] 19657566647 CycleStart dst=0xFFFF label=0 rcode=retry_1 src=0xFFC3 offset=0xFFFFF0000200 cycle_time_data=0x58F41024 speed=100 19657570253 Streaming length=40 tag=1 channel=0 synchronization=0 speed=400 0000: 0202007A 90000244 40FFFF11 40FFFF80 [...z...D@...@...] 0010: 40FFFF2A 40FFFFA7 40FFFF40 40FFFF71 [@..*@...@..@@..q] 0020: 40FFFF0E 40FFFFB1 [@...@...] 19657578933 CycleStart dst=0xFFFF label=0 rcode=retry_1 src=0xFFC3 offset=0xFFFFF0000200 cycle_time_data=0x58F42024 speed=100 19657582987 Streaming length=40 tag=1 channel=0 synchronization=0 speed=400 0000: 0202007E 900002B4 40FFFF8C 40FFFFC5 [...~....@...@...] 0010: 40FFFF79 40FFFFBB 40FFFFDE 40FFFFE0 [@..y@...@...@...] 0020: 40FFFFF2 40000031 [@...@..1] 19657591217 CycleStart dst=0xFFFF label=0 rcode=retry_1 src=0xFFC3 offset=0xFFFFF0000200 cycle_time_data=0x58F43024 speed=100 19657595721 Streaming length=40 tag=1 channel=0 synchronization=0 speed=400 0000: 02020082 90000324 4000004C 4000004B [.......$@..L@..K] 0010: 40000054 40FFFFF9 4000004D 40FFFFFE [@..T@...@..M@...] 0020: 40000053 4000003F [@..S@..?] 19657600127 ReadReq dst=0xFFC2 label=36 rcode=retry_X src=0xFFC3 offset=0xFFFFF0000904 speed=400 ack=ack_pending 19657603503 CycleStart dst=0xFFFF label=0 rcode=retry_1 src=0xFFC3 offset=0xFFFFF0000200 cycle_time_data=0x58F44024 speed=100 19657615788 CycleStart dst=0xFFFF label=0 rcode=retry_1 src=0xFFC3 offset=0xFFFFF0000200 cycle_time_data=0x58F45024 speed=100 19657628072 CycleStart dst=0xFFFF label=0 rcode=retry_1 src=0xFFC3 offset=0xFFFFF0000200 cycle_time_data=0x58F46024 speed=100 19657633918 ReadResp dst=0xFFC3 label=36 rcode=retry_X src=0xFFC2 response=resp_complete data=0x81008042 speed=400 ack=ack_complete 19657640358 CycleStart dst=0xFFFF label=0 rcode=retry_1 src=0xFFC3 offset=0xFFFFF0000200 cycle_time_data=0x58F47024 speed=100 19657644228 Streaming length=136 tag=1 channel=0 synchronization=0 speed=400 0000: 02020086 90000257 40FFFFE9 4000003C [.......W@...@..<] 0010: 40000000 40FFFFE2 40FFFFDF 40FFFFD9 [@...@...@...@...] 0020: 40000010 40000024 40FFFF6E 4000000B [@...@..$@..n@...] 0030: 40FFFFC7 40FFFFE8 40FFFFE6 40FFFFAF [@...@...@...@...] 0040: 40FFFFE1 4000002A 40000039 4000004A [@...@..*@..9@..J] 0050: 40000055 40000043 40000091 400000C0 [@..U@..C@...@...] 0060: 40000089 40000010 40FFFFEF 40FFFFE7 [@...@...@...@...] 0070: 40000036 4000001D 40FFFFF8 40FFFFD5 [@..6@...@...@...] 0080: 4000001C 40000014 [@...@...] 19657652642 CycleStart dst=0xFFFF label=0 rcode=retry_1 src=0xFFC3 offset=0xFFFFF0000200 cycle_time_data=0x58F48024 speed=100 19657657066 Streaming length=40 tag=1 channel=0 synchronization=0 speed=400 0000: 02020096 900002F1 40FFFFC2 40FFFF9F [........@...@...] 0010: 40FFFFC1 4000000A 4000002A 40000018 [@...@...@..*@...] 0020: 40FFFFA5 40FFFFD5 [@...@...] 19657664928 CycleStart dst=0xFFFF label=0 rcode=retry_1 src=0xFFC3 offset=0xFFFFF0000200 cycle_time_data=0x58F49024 speed=100 19657670106 Streaming length=40 tag=1 channel=0 synchronization=0 speed=400 0000: 0202009A 90000380 40000044 40000053 [........@..D@..S] 0010: 40000050 40000046 40000086 4000003A [@..P@..F@...@..:] 0020: 4000006D 4000002D [@..m@..-] 19657677213 CycleStart dst=0xFFFF label=0 rcode=retry_1 src=0xFFC3 offset=0xFFFFF0000200 cycle_time_data=0x58F4A024 speed=100 19657680881 Streaming length=40 tag=1 channel=0 synchronization=0 speed=400 0000: 0202009E 90000253 4000006A 40000047 [.......S@..j@..G] 0010: 40000056 4000000A 40000074 4000001F [@..V@...@..t@...] 0020: 4000004A 4000004A [@..J@..J] 19657689497 CycleStart dst=0xFFFF label=0 rcode=retry_1 src=0xFFC3 offset=0xFFFFF0000200 cycle_time_data=0x58F4B024 speed=100 19657693615 Streaming length=40 tag=1 channel=0 synchronization=0 speed=400 0000: 020200A2 900002C4 40000030 40000014 [........@..0@...] 0010: 4000002F 4000002D 40000013 4000001A [@../@..-@...@...] 0020: 4000002F 40FFFFBE [@../@...]
Regards
Takashi Sakamoto