Re: Debugging: Am I a dreamer. . . ?

On Apr 30, 10:43 am, Grant Edwards <gra...@xxxxxxxx> wrote:
On 2008-04-30, Chris H <ch...@xxxxxxxxxxxx> wrote:

I've got a real-time state-machine problem I'm trying to fix
right now and if I could get a timestamped trace of writes to a
couple addresses, it probably would have been fixed a week ago.
:/

You need an ICE :-)

I know. :)

What is the MCU?

Texas Instruments MSP430F2330

But, none of the parts I've ever used supported anything other
than the basic "halt the processor and examine the state" JTAG
interfaces. Maybe I'm just not spending enough money on
processors.

What is the processor. AFAIK there are Ice for PIC, and 51 up.
It is the bigger parts that don't have ICE.

The parts I've used recently are ARM (Samsung), H8, AVR, and
MSP430. All are plain JTAG except the H8 which I don't
remember having any debugging support (except for a GDB stub
that I ported to it).

I think there might be real ICE for some AVR parts, but I
haven't spent much time on that one yet.

Yes, there are Jtag Ice for some of the bigger AVR. There are cool
when working; unfortunately, not always reliable.


--
Grant Edwards grante Yow! Should I get locked
at in the PRINCICAL'S
visi.com OFFICE today -- or have
a VASECTOMY??

.

Relevant Pages

  • Re: Security issue with MSP430?
    ... >I heard there is a security issue with the MSP430. ... have a "BSL" ... JTAG fuse is physically blown and the JTAG can no longer be used. ... Maybe I'll go for an AVR instead. ...
    (comp.arch.embedded)
  • Re: What is JTAG was[Re: What is ICE?....]
    ... ICE simulates the operation of a microcontroller with the capability to look at internal register states, single step So therefore, all the pins of the CPU are connected to an ICE module that provides the electrical interface at this level. ... JTAG is a serial version of ICE, with much less capability. ... In general, JTAG connections can access the internal registers, and set break points, and provide single step capability. ... It basicly has all the pins of a microprocessor, ...
    (comp.arch.embedded)
  • Re: Need advices about possible ICE protocol
    ... Unfortunately EN- must be permanently low to enable the ICE subsystem ... Before discovering that, we tried JTAG ... I have recently read about JTAG mkII which requires one pin less than ... Now I call your experience to get advices about the possible protocol ...
    (comp.arch.embedded)
  • Re: Need advices about possible ICE protocol
    ... Unfortunately EN- must be permanently low to enable the ICE subsystem ... Before discovering that, we tried JTAG ... I have recently read about JTAG mkII which requires one pin less than ... Now I call your experience to get advices about the possible protocol ...
    (comp.arch.embedded)
  • Re: Debugging: Am I a dreamer. . . ?
    ... All are plain JTAG except the H8 which I don't ... I think there might be real ICE for some AVR parts, ... But, of course, it requires lots of money. ...
    (comp.arch.embedded)