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Discussion Groups | LPC2000 | LPC2148 USB DMA OUT endpoint data overrun

Discussion group dedicated to the Philips LPC2000 family of ARM MCUs

LPC2148 USB DMA OUT endpoint data overrun - Wojciech Kromer - Oct 9 3:09:19 2008

Hi.

I'm using LPC2148 USB with DMA mode.
My bulk endpoint sometimes return 'data overrun' in DMA descriptor.
This is not a problem.
Anyway t it seems that DMA engine overrides data AFTER data buffer in
this case.

I have configured MaxPSize to 64.

Thank you in advance.
============= Here is DMA memory dump just after configuration

alloc_ep_all_dd_bufs 4 udca_table[]=7fd00280 udca_startup[4]=7fd00280

-------------- 4 udca_table[]=7fd00280 udca_startup[4]=7fd00280

dd(7fd00280) b=7fd00710 nx=7fd002a8 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd002a8 1:00400804 2:7fd00710 3:00000000 4:00000000
buf(7fd00710) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd002a8) b=7fd00750 nx=7fd002d0 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd002d0 1:00400804 2:7fd00750 3:00000000 4:00000000
buf(7fd00750) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd002d0) b=7fd00790 nx=7fd002f8 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd002f8 1:00400804 2:7fd00790 3:00000000 4:00000000
buf(7fd00790) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd002f8) b=7fd007d0 nx=7fd00320 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd00320 1:00400804 2:7fd007d0 3:00000000 4:00000000
buf(7fd007d0) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd00320) b=7fd00810 nx=7fd00348 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd00348 1:00400804 2:7fd00810 3:00000000 4:00000000
buf(7fd00810) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd00348) b=7fd00850 nx=7fd00370 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd00370 1:00400804 2:7fd00850 3:0000 4:00000000
buf(7fd00850) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd00370) b=7fd00890 nx=7fd00398 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd00398 1:00400804 2:7fd00890 3:00000000 4:00000000
buf(7fd00890) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd00398) b=7fd008d0 nx=7fd003c0 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd003c0 1:00400804 2:7fd008d0 3:00000000 4:00000000
buf(7fd008d0) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd003c0) b=7fd00910 nx=7fd003e8 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd003e8 1:00400804 2:7fd00910 3:00000000 4:00000000
buf(7fd00910) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd003e8) b=7fd00950 nx=7fd00410 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd00410 1:00400804 2:7fd00950 3:00000000 4:00000000
buf(7fd00950) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd00410) b=7fd00990 nx=7fd00438 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd00438 1:00400804 2:7fd00990 3:00000000 4:00000000
buf(7fd00990) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd00438) b=7fd009d0 nx=00000000 inf=0800 len=0040 sts=0000 pres=0
DD WORD 0:00000000 1:00400800 2:7fd009d0 3:00000000 4:00000000
buf(7fd009d0) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 0 00
00 00 00 00 00 00 0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00
=============== Just after error case:

DMA_EVT_EOT EP4 dd=7fd00280 status_code=8

-------------- 4 udca_table[]=7fd00370 udca_startup[4]=7fd00280

dd(7fd00280) *b=7fd00790* nx=7fd002a8 inf=0804 len=0040 sts=0031 *pres=128

Why there is** 7fd00790?

* DD WORD 0:7fd002a8 1:00400804 *2:7fd00790* *3:00800031* 4:00000000
buf(7fd00710) 128 max 64 :a1 a2 a3 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af
b0 b1 b2 b3 b4 b5 b6 b7 b8
b9 ba bb bc bd be bf c0 c1 c2 c3 c4 c5 c6 c7 c8 c9 ca cb cc cd ce cf d0
d1 d2 d3 d4 d5 d6 d7 d8 d
9 da db dc dd de df e0
WARNING len=128 DATA(7fd00750): 1f 20 21 22 23 24 25 26 27 28 29 2a 2b
2c 2d 2e 2f 30 31 32 33 34
35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 47 48 49 4a 4b 4c
4d 4e 4f 50 51 52 53 54 5
5 56 57 58 59 5a 5b 5c 5d 5e

dd(7fd002a8) b=7fd00790 nx=7fd002d0 inf=0804 len=0040 sts=0025 pres=64
DD WORD 0:7fd002d0 1:00400804 2:7fd00790 3:00400025 4:00000000
buf(7fd00750) 64 max 64 :1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d
2e 2f 30 31 32 33 34 35 36
37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e
4f 50 51 52 53 54 55 56 57
58 59 5a 5b 5c 5d 5e

dd(7fd002d0) b=7fd007ca nx=7fd002f8 inf=0804 len=0040 sts=0027 pres=58
DD WORD 0:7fd002f8 1:00400804 2:7fd007ca 3:003a0027 4:00000000
buf(7fd00790) 58 max 64 :5f 60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d
6e 6f 70 71 72 73 74 75 76
77 78 79 7a 7b 7c 7d 5d 7d 5e 7f 80 81 82 83 84 85 86 87 88 89 8a 8b 8c
8d 8e 8f 90 91 92 93 94 95
96 00 00 00 00 00 00

dd(7fd002f8) b=7fd00810 nx=7fd00320 inf=0804 len=0040 sts=0025 pres=64
DD WORD 0:7fd00320 1:00400804 2:7fd00810 3:00400025 4:00000000
buf(7fd007d0) 64 max 64 :97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 a4 a5
a6 a7 a8 a9 aa ab ac ad ae
af b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 c2 c3 c4 c5 c6
c7 c8 c9 ca cb cc cd ce cf
d0 d1 d2 d3 d4 d5 d6

dd(7fd00320) b=7fd00850 nx=7fd00348 inf=0804 len=0040 sts=0025 pres=64
DD WORD 0:7fd00348 1:00400804 2:7fd00850 3:00400025 4:00000000
buf(7fd00810) 64 max 64 :d7 d8 d9 da db dc dd de df e0 e1 e2 e3 e4 e5
e6 e7 e8 e9 ea eb ec ed ee
ef f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd fe ff 00 01 02 03 04 05 06
07 09 0a 0b 0c 0d 0e 0f 10
7d 31 12 7d 33 14

dd(7fd00348) b=7fd00890 nx=7fd00370 inf=0804 len=0040 sts=0025 pres=64
DD WORD 0:7fd00370 1:00400804 2:7fd00890 3:00400025 4:00000000
buf(7fd00850) 64 max 64 :15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23
24 25 26 27 28 29 2a 2b 2c
2d 2e 2f 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44
45 46 47 48 49 4a 4b 4c 4d
4e 4f 50 51 52 53 54

dd(7fd00370) b=7fd008ca nx=7fd00398 inf=0804 len=0040 sts=0027 pres=58
DD WORD 0:7fd00398 1:00400804 2:7fd008ca 3:003a0027 4:00000000
buf(7fd00890) 58 max 64 :55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63
64 65 66 67 68 69 6a 6b 6c
6d 6e 6f 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 5d 7d 5e 7f 80 81 82
83 84 85 86 87 88 89 8a 8b
8c 00 00 00 00 00 00

dd(7fd00398) b=7fd00910 nx=7fd003c0 inf=0804 len=0040 sts=0025 pres=64
DD WORD 0:7fd003c0 1:00400804 2:7fd00910 3:00400025 4:00000000
buf(7fd008d0) 64 max 64 :8d 8e 8f 90 91 92 93 94 95 96 97 98 99 9a 9b
9c 9d 9e 9f a0 a1 a2 a3 a4
a5 a6 a7 a8 a9 aa ab ac ad ae af b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc
bd be bf c0 c1 c2 c3 c4 c5
c6 c7 c8 c9 ca cb cc

dd(7fd003c0) b=7fd00950 nx=7fd003e8 inf=0804 len=0040 sts=0025 pres=64
DD WORD 0:7fd003e8 1:00400804 2:7fd00950 3:00400025 4:00000000
buf(7fd00910) 64 max 64 :cd ce cf d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db
dc dd de df e0 e1 e2 e3 e4
e5 e6 e7 e8 e9 ea eb ec ed ee ef f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc
fd fe ff 00 01 02 03 04 05
06 07 08 09 0a 0b 0c

dd(7fd003e8) b=7fd00990 nx=7fd00410 inf=0804 len=0040 sts=0025 pres=64
DD WORD 0:7fd00410 1:00400804 2:7fd00990 3:00400025 4:00000000
buf(7fd00950) 64 max 64 :0d 0e 0f 10 7d 31 12 7d 33 14 15 16 17 18 19
1a 1b 1c 1d 1e 1f 20 21 22
23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31 32 33 34 35 36 37 38 39 3a
3b 3c 3d 3e 3f 40 41 42 43
44 45 46 47 48 49 4a

dd(7fd00410) b=7fd009ca nx=7fd00438 inf=0804 len=0040 sts=0027 pres=58
DD WORD 0:7fd00438 1:00400804 2:7fd009ca 3:003a0027 4:00000000
buf(7fd00990) 58 max 64 :4b 4c 4d 4e 4f 50 51 52 53 54 55 56 57 58 59
5a 5b 5c 5d 5e 5f 60 61 62
63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f 70 71 72 73 74 75 76 77 78 79 7a
7b 7c 7d 5d 7d 5e 7f 80 81
82 00 00 00 00 00 00

dd(7fd00438) b=7fd00a10 nx=00000000 inf=0800 len=0040 sts=0025 pres=64
DD WORD 0:00000000 1:00400800 2:7fd00a10 3:00400025 4:00000000
buf(7fd009d0) 64 max 64 :83 84 85 86 87 888a 8b 8c 8d 8e 8f 90 91 92 93
94 95 96 97 98 99 9a 9b 9
c 9d 9e 9f a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af b0 b1 b2 b3
b4 b5 b6 b7 b8 b9 ba bb bc
bd be bf c0 c1 c2
====================== Another error case:

DMA_EVT_EOT EP4 dd=7fd00280 status_code=8

-------------- 4 udca_table[]=7fd00280 udca_startup[4]=7fd00280

dd(7fd00280) *b=7fd00750* nx=7fd002a8 inf=0804 len=0040 sts=0031 pres=64
DD WORD 0:7fd002a8 1:00400804 *2:7fd00750* 3:00400031 4:00000000
*
Something written inside buffer, but preselect count and data pointer
are wrong.

* buf(7fd00710) 64 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 *7b 7c 7d 5d 7d 5e*

dd(7fd002a8) b=7fd00750 nx=7fd002d0 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd002d0 1:00400804 2:7fd00750 3:00000000 4:00000000
buf(7fd00750) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd002d0) b=7fd00790 nx=7fd002f8 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd002f8 1:00400804 2:7fd00790 3:00000000 4:00000000
buf(7fd00790) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd002f8) b=7fd007d0 nx=7fd00320 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd00320 1:00400804 2:7fd007d0 3:00000000 4:00000000
buf(7fd007d0) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd00320) b=7fd00810 nx=7fd00348 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd00348 1:00400804 2:7fd00810 3:00000000 4:00000000
buf(7fd00810) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd00348) b=7fd00850 nx=7fd00370 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd00370 1:00400804 2:7fd00850 3:00000000 4:00000000
buf(7fd00850) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd00370) b=7fd00890 nx=7fd00398 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd00398 1:00400804 2:7fd00890 3:00000000 4:00000000
buf(7fd00890) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd00398) b=7fd008d0 nx=7fd003c0 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd003c0 1:00400804 2:7fd008d0 3:00000000 4:00000000
buf(7fd008d0) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd003c0) b=7fd00910 nx=7fd003e8 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd003e8 1:00400804 2:7fd00910 3:00000000 4:00000000
buf(7fd00910) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd003e8) b=7fd00950 nx=7fd00410 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd00410 1:00400804 2:7fd00950 3:00000000 4:00000000
buf(7fd00950) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd00410) b=7fd00990 nx=7fd00438 inf=0804 len=0040 sts=0000 pres=0
DD WORD 0:7fd00438 1:00400804 2:7fd00990 3:00000000 4:00000000
buf(7fd00990) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00

dd(7fd00438) b=7fd009d0 nx=00000000 inf=0800 len=0040 sts=0000 pres=0
DD WORD 0:00000000 1:00400800 2:7fd009d0 3:00000000 4:00000000
buf(7fd009d0) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00
------------------------------------



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Re: LPC2148 USB DMA OUT endpoint data overrun - hjiongh - Oct 24 3:41:37 2008

hi, sir

i am working on LPC2478 USB with DMA mode . I think we can discuss
together. I'm a frosh of using USB . Hope your help.
Would you please send your example application with DMA mode ?

Thanks a lot !

Regards
Vincent

--- In l...@yahoogroups.com, Wojciech Kromer
wrote:
>
> Hi.
>
> I'm using LPC2148 USB with DMA mode.
> My bulk endpoint sometimes return 'data overrun' in DMA descriptor.
> This is not a problem.
> Anyway t it seems that DMA engine overrides data AFTER data buffer
in
> this case.
>
> I have configured MaxPSize to 64.
>
> Thank you in advance.
> ============= Here is DMA memory dump just after configuration
>
> alloc_ep_all_dd_bufs 4 udca_table[]=7fd00280 udca_startup[4]
=7fd00280
>
> -------------- 4 udca_table[]=7fd00280 udca_startup[4]=7fd00280
>
> dd(7fd00280) b=7fd00710 nx=7fd002a8 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd002a8 1:00400804 2:7fd00710 3:00000000 4:00000000
> buf(7fd00710) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd002a8) b=7fd00750 nx=7fd002d0 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd002d0 1:00400804 2:7fd00750 3:00000000 4:00000000
> buf(7fd00750) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd002d0) b=7fd00790 nx=7fd002f8 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd002f8 1:00400804 2:7fd00790 3:00000000 4:00000000
> buf(7fd00790) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd002f8) b=7fd007d0 nx=7fd00320 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd00320 1:00400804 2:7fd007d0 3:00000000 4:00000000
> buf(7fd007d0) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd00320) b=7fd00810 nx=7fd00348 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd00348 1:00400804 2:7fd00810 3:00000000 4:00000000
> buf(7fd00810) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd00348) b=7fd00850 nx=7fd00370 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd00370 1:00400804 2:7fd00850 3:0000 4:00000000
> buf(7fd00850) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd00370) b=7fd00890 nx=7fd00398 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd00398 1:00400804 2:7fd00890 3:00000000 4:00000000
> buf(7fd00890) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd00398) b=7fd008d0 nx=7fd003c0 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd003c0 1:00400804 2:7fd008d0 3:00000000 4:00000000
> buf(7fd008d0) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd003c0) b=7fd00910 nx=7fd003e8 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd003e8 1:00400804 2:7fd00910 3:00000000 4:00000000
> buf(7fd00910) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd003e8) b=7fd00950 nx=7fd00410 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd00410 1:00400804 2:7fd00950 3:00000000 4:00000000
> buf(7fd00950) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd00410) b=7fd00990 nx=7fd00438 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd00438 1:00400804 2:7fd00990 3:00000000 4:00000000
> buf(7fd00990) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd00438) b=7fd009d0 nx=00000000 inf=0800 len=0040 sts=0000
pres=0
> DD WORD 0:00000000 1:00400800 2:7fd009d0 3:00000000 4:00000000
> buf(7fd009d0) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 0 00
> 00 00 00 00 00 00 0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00
> =============== Just after error case:
>
> DMA_EVT_EOT EP4 dd=7fd00280 status_code=8
>
> -------------- 4 udca_table[]=7fd00370 udca_startup[4]=7fd00280
>
> dd(7fd00280) *b=7fd00790* nx=7fd002a8 inf=0804 len=0040 sts=0031
*pres=128
>
> Why there is** 7fd00790?
>
> * DD WORD 0:7fd002a8 1:00400804 *2:7fd00790* *3:00800031*
4:00000000
> buf(7fd00710) 128 max 64 :a1 a2 a3 a4 a5 a6 a7 a8 a9 aa ab ac ad
ae af
> b0 b1 b2 b3 b4 b5 b6 b7 b8
> b9 ba bb bc bd be bf c0 c1 c2 c3 c4 c5 c6 c7 c8 c9 ca cb cc cd ce
cf d0
> d1 d2 d3 d4 d5 d6 d7 d8 d
> 9 da db dc dd de df e0
> WARNING len=128 DATA(7fd00750): 1f 20 21 22 23 24 25 26 27 28 29
2a 2b
> 2c 2d 2e 2f 30 31 32 33 34
> 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 47 48 49 4a
4b 4c
> 4d 4e 4f 50 51 52 53 54 5
> 5 56 57 58 59 5a 5b 5c 5d 5e
>
> dd(7fd002a8) b=7fd00790 nx=7fd002d0 inf=0804 len=0040 sts=0025
pres=64
> DD WORD 0:7fd002d0 1:00400804 2:7fd00790 3:00400025 4:00000000
> buf(7fd00750) 64 max 64 :1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c
2d
> 2e 2f 30 31 32 33 34 35 36
> 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 47 48 49 4a 4b 4c
4d 4e
> 4f 50 51 52 53 54 55 56 57
> 58 59 5a 5b 5c 5d 5e
>
> dd(7fd002d0) b=7fd007ca nx=7fd002f8 inf=0804 len=0040 sts=0027
pres=58
> DD WORD 0:7fd002f8 1:00400804 2:7fd007ca 3:003a0027 4:00000000
> buf(7fd00790) 58 max 64 :5f 60 61 62 63 64 65 66 67 68 69 6a 6b 6c
6d
> 6e 6f 70 71 72 73 74 75 76
> 77 78 79 7a 7b 7c 7d 5d 7d 5e 7f 80 81 82 83 84 85 86 87 88 89 8a
8b 8c
> 8d 8e 8f 90 91 92 93 94 95
> 96 00 00 00 00 00 00
>
> dd(7fd002f8) b=7fd00810 nx=7fd00320 inf=0804 len=0040 sts=0025
pres=64
> DD WORD 0:7fd00320 1:00400804 2:7fd00810 3:00400025 4:00000000
> buf(7fd007d0) 64 max 64 :97 98 99 9a 9b 9c 9d 9e 9f a0 a1 a2 a3 a4
a5
> a6 a7 a8 a9 aa ab ac ad ae
> af b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf c0 c1 c2 c3 c4
c5 c6
> c7 c8 c9 ca cb cc cd ce cf
> d0 d1 d2 d3 d4 d5 d6
>
> dd(7fd00320) b=7fd00850 nx=7fd00348 inf=0804 len=0040 sts=0025
pres=64
> DD WORD 0:7fd00348 1:00400804 2:7fd00850 3:00400025 4:00000000
> buf(7fd00810) 64 max 64 :d7 d8 d9 da db dc dd de df e0 e1 e2 e3 e4
e5
> e6 e7 e8 e9 ea eb ec ed ee
> ef f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd fe ff 00 01 02 03 04
05 06
> 07 09 0a 0b 0c 0d 0e 0f 10
> 7d 31 12 7d 33 14
>
> dd(7fd00348) b=7fd00890 nx=7fd00370 inf=0804 len=0040 sts=0025
pres=64
> DD WORD 0:7fd00370 1:00400804 2:7fd00890 3:00400025 4:00000000
> buf(7fd00850) 64 max 64 :15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22
23
> 24 25 26 27 28 29 2a 2b 2c
> 2d 2e 2f 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42
43 44
> 45 46 47 48 49 4a 4b 4c 4d
> 4e 4f 50 51 52 53 54
>
> dd(7fd00370) b=7fd008ca nx=7fd00398 inf=0804 len=0040 sts=0027
pres=58
> DD WORD 0:7fd00398 1:00400804 2:7fd008ca 3:003a0027 4:00000000
> buf(7fd00890) 58 max 64 :55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62
63
> 64 65 66 67 68 69 6a 6b 6c
> 6d 6e 6f 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 5d 7d 5e 7f 80
81 82
> 83 84 85 86 87 88 89 8a 8b
> 8c 00 00 00 00 00 00
>
> dd(7fd00398) b=7fd00910 nx=7fd003c0 inf=0804 len=0040 sts=0025
pres=64
> DD WORD 0:7fd003c0 1:00400804 2:7fd00910 3:00400025 4:00000000
> buf(7fd008d0) 64 max 64 :8d 8e 8f 90 91 92 93 94 95 96 97 98 99 9a
9b
> 9c 9d 9e 9f a0 a1 a2 a3 a4
> a5 a6 a7 a8 a9 aa ab ac ad ae af b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba
bb bc
> bd be bf c0 c1 c2 c3 c4 c5
> c6 c7 c8 c9 ca cb cc
>
> dd(7fd003c0) b=7fd00950 nx=7fd003e8 inf=0804 len=0040 sts=0025
pres=64
> DD WORD 0:7fd003e8 1:00400804 2:7fd00950 3:00400025 4:00000000
> buf(7fd00910) 64 max 64 :cd ce cf d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da
db
> dc dd de df e0 e1 e2 e3 e4
> e5 e6 e7 e8 e9 ea eb ec ed ee ef f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa
fb fc
> fd fe ff 00 01 02 03 04 05
> 06 07 08 09 0a 0b 0c
>
> dd(7fd003e8) b=7fd00990 nx=7fd00410 inf=0804 len=0040 sts=0025
pres=64
> DD WORD 0:7fd00410 1:00400804 2:7fd00990 3:00400025 4:00000000
> buf(7fd00950) 64 max 64 :0d 0e 0f 10 7d 31 12 7d 33 14 15 16 17 18
19
> 1a 1b 1c 1d 1e 1f 20 21 22
> 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31 32 33 34 35 36 37 38
39 3a
> 3b 3c 3d 3e 3f 40 41 42 43
> 44 45 46 47 48 49 4a
>
> dd(7fd00410) b=7fd009ca nx=7fd00438 inf=0804 len=0040 sts=0027
pres=58
> DD WORD 0:7fd00438 1:00400804 2:7fd009ca 3:003a0027 4:00000000
> buf(7fd00990) 58 max 64 :4b 4c 4d 4e 4f 50 51 52 53 54 55 56 57 58
59
> 5a 5b 5c 5d 5e 5f 60 61 62
> 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f 70 71 72 73 74 75 76 77 78
79 7a
> 7b 7c 7d 5d 7d 5e 7f 80 81
> 82 00 00 00 00 00 00
>
> dd(7fd00438) b=7fd00a10 nx=00000000 inf=0800 len=0040 sts=0025
pres=64
> DD WORD 0:00000000 1:00400800 2:7fd00a10 3:00400025 4:00000000
> buf(7fd009d0) 64 max 64 :83 84 85 86 87 888a 8b 8c 8d 8e 8f 90 91
92 93
> 94 95 96 97 98 99 9a 9b 9
> c 9d 9e 9f a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af b0 b1 b2
b3
> b4 b5 b6 b7 b8 b9 ba bb bc
> bd be bf c0 c1 c2
> ====================== Another error case:
>
> DMA_EVT_EOT EP4 dd=7fd00280 status_code=8
>
> -------------- 4 udca_table[]=7fd00280 udca_startup[4]=7fd00280
>
> dd(7fd00280) *b=7fd00750* nx=7fd002a8 inf=0804 len=0040 sts=0031
pres=64
> DD WORD 0:7fd002a8 1:00400804 *2:7fd00750* 3:00400031 4:00000000
> *
> Something written inside buffer, but preselect count and data
pointer
> are wrong.
>
> * buf(7fd00710) 64 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 00
> 00 *7b 7c 7d 5d 7d 5e*
>
> dd(7fd002a8) b=7fd00750 nx=7fd002d0 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd002d0 1:00400804 2:7fd00750 3:00000000 4:00000000
> buf(7fd00750) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd002d0) b=7fd00790 nx=7fd002f8 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd002f8 1:00400804 2:7fd00790 3:00000000 4:00000000
> buf(7fd00790) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd002f8) b=7fd007d0 nx=7fd00320 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd00320 1:00400804 2:7fd007d0 3:00000000 4:00000000
> buf(7fd007d0) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd00320) b=7fd00810 nx=7fd00348 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd00348 1:00400804 2:7fd00810 3:00000000 4:00000000
> buf(7fd00810) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd00348) b=7fd00850 nx=7fd00370 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd00370 1:00400804 2:7fd00850 3:00000000 4:00000000
> buf(7fd00850) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd00370) b=7fd00890 nx=7fd00398 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd00398 1:00400804 2:7fd00890 3:00000000 4:00000000
> buf(7fd00890) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd00398) b=7fd008d0 nx=7fd003c0 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd003c0 1:00400804 2:7fd008d0 3:00000000 4:00000000
> buf(7fd008d0) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd003c0) b=7fd00910 nx=7fd003e8 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd003e8 1:00400804 2:7fd00910 3:00000000 4:00000000
> buf(7fd00910) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd003e8) b=7fd00950 nx=7fd00410 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd00410 1:00400804 2:7fd00950 3:00000000 4:00000000
> buf(7fd00950) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd00410) b=7fd00990 nx=7fd00438 inf=0804 len=0040 sts=0000
pres=0
> DD WORD 0:7fd00438 1:00400804 2:7fd00990 3:00000000 4:00000000
> buf(7fd00990) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>
> dd(7fd00438) b=7fd009d0 nx=00000000 inf=0800 len=0040 sts=0000
pres=0
> DD WORD 0:00000000 1:00400800 2:7fd009d0 3:00000000 4:00000000
> buf(7fd009d0) 0 max 64 :00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
> 00 00 00 00 00 00 00 00 0
> 0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
> 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00
>

------------------------------------



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