Hello David,

Am 2010-03-04 14:21:16, schrieb David Brownell:
> Surely that's because OpenOCD doesn't claim to support those
> chips in the first place...

Right, and I was trying to get  no  mather  what  from  the  chip  as  a
starting point...

> from GCC or GDB, either.  Though it does at least seem to use JTAG for
> the transport to its on-chip debug (OCD) module...

The preliminary "MAXQ69 User Guide" is speaking about ISP and debuging

> The most I'd expect you to be able to do with OpenOCD is use the
> autprobe mechanism to discover that one exists on the scan chain,
> and report a few basic TAP attributes.  And as Michael noted,
> maybe SVF and/or XSVF support would work.

Hmmm...

> I'd not think it would happen soon either.  Maybe GCC 4.5.x
> versions could start to use the named address space feature
> from ISO/IEC TR 18037 to help sort out the mess with SFRs (they
> need their own address space.)   8051 is not compiler-friendly.
> I've never seen a compiler that generated 8051 code without
> requiring extensions to C ... (I looked at C for 8051 a few years
> back.  At that time SDCC was the main non-payware option, and
> it wasn't IMO very good.)

I use "sdcc" since 2 years without problem, but have to  use  a  Windows
tool to upoad my code.  But sometimes it does not start in "wine".

> Likewise, no OpenOCD for that particular chip.  A quick scan of
> the manual for that chip doesn't find any reference to JTAG.
> Evidently it uses yet another proprietary transport for OCD.

I have read there is someone which used OpenOCD to access the  C8051F5xx
but I do not find any hints...

> Switch to chips with good GCC/GDB/OpenOCD tools support, or
> help develop that support for your chosen chips.

Do yu know a chip which is

1)  physical small
2)  possibel TSOP, QFP or equivalent
3)  consumes ony som mA of energy
4)  mostly automotive
5)  1x I²C
6)  1x SPI

and chip one has either

a)  1x USB device
b)  1x CAN

Sorry, but any ARM7TDMI suck to much

I use already the SAM7S, SAM7SE and SAM7XC plus a bunch of others.

> Also: Read the Fine Manual; we've been working to make sure
> the OpenOCD User's Guide covers all the important stuff, like
> which cores are supported.
> 
> Current manuals can be read (HTML or PDF) at
> 
>       http://openocd.sourceforge.net/

I am looking for a documentation on how to get support into OpenOCD if a
(yet) non-supportet microchip is needed...  What are the steps?

Thanks, Greetings and nice Day/Evening
    Michelle Konzack
    Systemadministrator
    24V Electronic Engineer
    Tamay Dogan Network
    Debian GNU/Linux Consultant

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