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IAR/JFET: 60 second delay in acknowledging breakpoint

Started by Clifford Heath November 5, 2005
Blaaaah. This insidious problem has come back.

IAR says it's using a hardware breakpoint (I
have set only one), and it's hit immediately
when I continue execution (F5), but IAR waits
almost exactly 60 seconds before acknowledging
the breakpoint. Funnily enough, single-step
seems to work fine - most of the time. Sometimes
though, SS also takes 60 seconds(!). It doesn't
seem to make any difference whether the BP is
set in C or assembly code.

I'm debugging (under Win98SE) a C language app
which compiles to just under 4K in an MSP430F1121,
running from a stable 3V3 supply. The IAR system
version is Debugger GUI: 3.3G, Kernel: 3.2K, and
I'm using an Olimex JFET adapter.

It just isn't feasible to work with these delays.
Does anyone know the cause or the fix?

Clifford Heath.




Beginning Microcontrollers with the MSP430

Hmmm, interesting. If it's frozen, waiting to
acknowledge an interrupt that's been hit, and
I move the mouse, it gets ack'ed immediately.
Must be something to do with the Win98 drivers,
or the printer port mode.

At least I can move again, but is there a fix
for this?

Clifford heath.




I think it is related to the PC drivers. I spent considerable time in
investigating the PC-FET-Target protocols (for IAR)
and I have found many idiosyncrasies :)  I never seen before such a
butchered code :)

Try installing the FET drivers _after_ you had done some work with the
mouse.

Alex




----- Original Message ----- 
From: "Clifford Heath" <cjh@cjh@...>
To: <msp430@msp4...>
Sent: Saturday, November 05, 2005 9:34 PM
Subject: [msp430] IAR/JFET: 60 second delay in acknowledging breakpoint


> Blaaaah. This insidious problem has come back.
>
> IAR says it's using a hardware breakpoint (I
> have set only one), and it's hit immediately
> when I continue execution (F5), but IAR waits
> almost exactly 60 seconds before acknowledging
> the breakpoint. Funnily enough, single-step
> seems to work fine - most of the time. Sometimes
> though, SS also takes 60 seconds(!). It doesn't
> seem to make any difference whether the BP is
> set in C or assembly code.
>
> I'm debugging (under Win98SE) a C language app
> which compiles to just under 4K in an MSP430F1121,
> running from a stable 3V3 supply. The IAR system
> version is Debugger GUI: 3.3G, Kernel: 3.2K, and
> I'm using an Olimex JFET adapter.
>
> It just isn't feasible to work with these delays.
> Does anyone know the cause or the fix?
>
> Clifford Heath.
>
>
>
>
>
>
> .
>
>
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