Data storage error ??

[Gary]

Data exection on trying to list memory in vxWorks.
Whats this tring to tell me?.. Thanks in advance..

In vxWorks I want to list the contents of memory at 0x20000000 which is
in my TLB

> d 0x20000000
20000000:
data storage
Exception current instruction address: 0x0011b9b0
Machine Status Register: 0x00029210
Data Exception Address Register: 0x20000000
Condition Register: 0x20004084D

[Michael Lawnick]

Gary said the following:

Well, it may be in your TLB, but there seems to be no H/W responding :-(

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Mit freundlichen Grüßen,
Michael Lawnick

HTML-Mail is the first choice to distribute EMail-worms and -virii.
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[Gary]

Hmmm, I am using visionICE to help debug this but I can successfull
display memory at 0x20000000 in visionICE but when I move over to the
board I/O window I get the posted messages above. Here is my TLB

-> mmu440Tlg bShow
TLB entry 00 : 290 0 7 <- D 0x00000000 is ok...
TLB entry 01 : 10000290 10000001 7 <- D 0x10000000 fails ...
TLB entry 02 : 20000290 20000001 7 <- D 0x20000000 fails ...
TLB entry 03 : 30000290 30000000 7
TLB entry 04 : 40000290 40000000 7
TLB entry 05 : 50000290 50000000 7
TLB entry 06 : 60000290 60000000 7
TLB entry 07 : 70000290 70000000 7
TLB entry 08 : 90000290 3 503
TLB entry 09 : a0000290 10000003 403
TLB entry 10 : b0000290 f0000000 503
TLB entry 11 : c0000240 80000000 7
TLB entry 12 : d0000290 2 503
TLB entry 13 : e0000290 40000001 503
TLB entry 14 : f0000290 f0000001 807
TLB entry 15 : e0000390 40000001 503
TLB entry 16 : f0000390 f0000001 807 <- I can D 0xFC000000 OK ...
TLB entry 17 : 90000390 3 503
TLB entry 18 : a0000390 10000003 403
TLB entry 19 : d0000390 2 503
TLB entry 20 : 16c310 16c000 7
TLB entry 21 : 190310 190000 7
TLB entry 22 : 16d310 16d000 7
TLB entry 23 : 162310 162000 7
TLB entry 24 : 148310 148000 7
TLB entry 25 : 6310 6000 7
TLB entry 26 : 17d310 17d000 7
TLB entry 27 : 17f310 17f000 7
TLB entry 28 : 1a1310 1a1000 7
TLB entry 29 : 1a6310 1a6000 7
TLB entry 30 : fe57310 fe57000 7
TLB entry 31 : 17e310 17e000 7
TLB entry 32 : 1a5310 1a5000 7
TLB entry 33 : fe94310 fe94000 7
TLB entry 34 : fe93310 fe93000 7
TLB entry 35 : 183310 183000 7
TLB entry 36 : fd08310 fd08000 7
TLB entry 37 : fd09310 fd09000 7
TLB entry 38 : 1a3310 1a3000 7
TLB entry 39 : 1a2310 1a2000 7
TLB entry 40 : fe64310 fe64000 7
TLB entry 41 : fe60310 fe60000 7
TLB entry 42 : 19b310 19b000 7
TLB entry 43 : fe52310 fe52000 7
TLB entry 44 : 19c310 19c000 7
TLB entry 45 : 1a0310 1a0000 7
TLB entry 46 : 14c310 14c000 7
TLB entry 47 : feb2310 feb2000 7
TLB entry 48 : 1a4310 1a4000 7
TLB entry 49 : 180310 180000 7
TLB entry 50 : 155310 155000 7
TLB entry 51 : fde7310 fde7000 7
TLB entry 52 : fd7c310 fd7c000 7
TLB entry 53 : fd13310 fd13000 7
TLB entry 54 : fe54310 fe54000 7
TLB entry 55 : feb4310 feb4000 407
TLB entry 56 : fde9310 fde9000 7
TLB entry 57 : feb5310 feb5000 407
TLB entry 58 : fd7e310 fd7e000 7
TLB entry 59 : feb3310 feb3000 407
TLB entry 60 : 16a310 16a000 7
TLB entry 61 : 192310 192000 7
TLB entry 62 : 16b310 16b000 7
TLB entry 63 : 191310 191000 7

[Michael Lawnick]

Gary said the following:

Oh,oh! I think that's your problem:
Word1 as 10000001 means physical address 0x1_10000000, surely not what
you want. Change it to 0x10000000 and it should work (IIRC).

HTH