[Icc-mot] Icc12-V7, XDP512, Xgate...

Fri Jan 11 04:31:08 PST 2008

Thanks, Edward.

I'll try again. Sure, after the start difficulties, it will be ok !
It seems you don't use NoIce ?

I had no problem with Icc12V6 and NoIce, for dp256 processor.
For the moment, with Xdp512... I'm locked.

After your help; I think I understand XGate now. Not so difficult, at all !

About linker, which doesn't accept global variable for XGate... it's not a
problem to modify XGate source in order to put addresses of global variables
used. The sample you send me seems very simple to modify vectors tables (I
plan to put there address of global variable used by the thread)

For the moment, in fact, I've no problem about XGate, but with the team
ICC12-Xdp512-NoIce...
I asked John Hartman (NoIce) about that.

Sure, when I'll be able to burn flash (and paged flash), I'll can go on.
Best regard,
Have a nice week-end.

Joel

> -----Message d'origine-----
> De : icc-mot-bounces at imagecraft.com [mailto:icc-mot-
> bounces at imagecraft.com] De la part de Edward Karpicz
> Envoyé : vendredi 11 janvier 2008 11:42
> À : Discussion List for ICC08/11/12/16 users. You do NOT need
> tosubscribetoicc-announce if you are a member of this.
> Objet : Re: [Icc-mot] Icc12-V7, XDP512, Xgate...
> 
> Hi Joel,
> 
> 
> 1) Regarding strange page numbers. It may be related to *global* addresses
> I
> used to specify xgate and expanded memory areas. Maybe linker overflows
> somewhere. I'm not sure about it, but I remember I saw something like this
> somewhere in the past. See below about this.
> 
> I'm sorry for not working example I sent you. Finally, after a year long
> timeout, I tried to rebuild it :-) and I start to remember that I did it
> because Richard asked for simple one. You probably don't know that before
> Imagecraft released beta of XGATE asm, I did some xgateasm.inc file, that
> consisted of assembler macros emulating XGATE instructions. For example
> 
> .macro _CSEM
>    .if (@0 & 0x8000)
>    .word 0x00F1+((@0 & 7)<<8) ; CSEM  RS
>    .else
>    .word 0x00F0+((@0 & 7)<<8) ; CSEM  #IMM
>    .endif
> .endmacro
> 
> was used to be able to compile XGATE CSEM instruction in old ias6812. Code
> in my example is 100%. Unfortunately there's not only a lack of ICC linker
> support for XGATE, but also XGATE asm is still buggy.
> 
> I converted my example back to use macros but that didn't fix the things.
> xgate.o file looked bit strange for me. Definitely it should contain more
> code than I see in the asm output:
> 
> XH
> H 2 areas 0 global symbols
> M xgate.s
> A text size 0 flags 0
> A XFLASH size 1F4 flags 80
> T 01 09 00 F2 00 FA E0 6B E3 7B F4 80 54 02
> R 00 00 00
> 
> I removed .cpu xgate directive and it compiled to proper o file
> 
> XH
> H 2 areas 0 global symbols
> M xgate.s
> A text size 0 flags 0
> A XFLASH size 1F4 flags 80
> T 01 E0 09 E4 00 37 F2 00 FA E0 6B 40 E3 01 7B 40
> R 00 00 00 01
> T 01 EE F4 80 54 20 02 00
> R 00 00 00 01
> 
> 
> 
> I'll try to send you xgateasm.inc and macroed version of XGATE code.
> 
> 
> 
> 
> 2) regarding IDE buildin settings template. It would be nice if it would
> be
> user-editable. I nearly always use custom settings because standard
> settings
> never suit my needs. It is always useful to specify the upper end of RAM
> area, leaving some space for stack. It's nice when linker errors you in
> case
> your app asks for more then available. It's also useful to specify upper
> border of text area below the vectors => it's also nice when linker erros
> you when your code starts overwriting vectors etc etc.
> 
> 
> 
> 3) regarding addresses. You are right, 0x780000 is a global address.
> 
> if you divide it by 0x4000 to get PPAGE (and the most of debuggers and
> bootloaders should do so), you will get 0x1E0. Writing this 0x1E0 to PPAGE
> is the same as writing 0xE0 , because PPAGE is 8-bits wide register. But
> maybe NoICE will fail setting breakpoints on global addresses? I don't
> know,
> but it should be able to flash the target. Didn't you mix DP512 with
> XDP512
> in NoICE? You can try using linear addresses, linear = global - 0x400000.
> For example 0x780000->0x380000.
> 
> 
> Edward
> 
> 
> 
> 
> ----- Original Message -----
> From: "jpdi"
> To: "'Discussion List for ICC08/11/12/16 users. You do NOT need
> tosubscribetoicc-announce if you are a member of this.'"
> <icc-mot at imagecraft.com>
> Sent: Friday, January 11, 2008 10:42 AM
> Subject: [Icc-mot] Icc12-V7, XDP512, Xgate...
> 
> 
> Hello !
> 
> Here are some questions about ICC12 V7, XDP512, and NoIce debugger
> 
> 1°) strange page numbers
> ------------------------
> 
> I used paged functions with ICC12 V6 (pro version), and Richard helped me
> very well some time ago about that. Under DP256, it was OK (pages where
> 0x30.)
> 
> Now, with ICC12V7 and XDP512, in a very little program, compiler reports
> me
> some paged functions for example in 20:8000, that pages are inexistent in
> XDP512, where pages begin at 0xE0, if I'm correct about XDP512.
> 
> 
> 2°) problem in XDP512 config ?
> ------------------------------
> An other question :
> 
> Select of XDP512 processor reports
> - Program memory 0x4000.0x7fff:... the rest not visible but I suppose OK
> (0x4000.0x7fff:0xC000.0xFFFF)
> - Data memory 0x0800 seems to be incorrect, because RAM for XDP512 begins
> at
> 0x1000, which is paged RAM, RAM non paged beginning at 0x2000
> - Stack pointer 0x4000 (correct)
> 
> Do anybody knows how to change the value of data memory in the XDP512
> config
> ? (of course, I can use "custom" device too, but using different devices,
> it
> seems to better to modify XDP512 config...)
> 
> 3°) trying an other config
> --------------------------
> Edward Karpicz sends me (thanks to him !) by the net XGate prog to
> evaluate
> system...
> 
> Configuration is
> Device : custom
> Program Memory : 0x4000.0x7fff:0xc000.0xfeff
> Data memory : 0x2000
> Stack pointer : 0x4000
> Expanded Memory Enable, expanded mem checked, make paged function default
> too, Addr : 0x790000.0x7fffff
> Other options : -bXFLASH:0x780800.0x787fff
> 
> I suppose these address are in global address format ?
> 
> When I use configuration above, the compiler/linker reports me (in the map
> file) a function for example in E4:8000, which seems to be correct for
> XDP512, but NoIce debugger doesn't flash anything in that location, so
> program crashes, because there is no code...
> 
> 
> Do anybody can help me about all these things ?
> Still working for XGate developpement... It seems there are no many
> samples
> about it (under ICC12 V7), except those from Edward Karpicz ? I try to
> develop that kind of samples too...
> 
> With all my thanks.
> Best regards
> 
> Joel Petrique
> 
> 
> 
> 
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