It looks like the watchdog is still enabled.
Did you try the RequestEP93XXSerialTest(fd) test again to see how long the
watchdog lasts?
The EP9302 only sends the serial boot request character "<" once !!!
The reason you see multiple "<" requests is because the EP9302 is being reset.
It is most likely being reset by the TS watchdog timer in on the CPLD.
-Curtis.
On June 4, 2006 09:49 pm, zeener zits wrote:
> Curtis:
> I tied(soldered) pin 11 of the 4020 to pin 16 after lifting pin 11 from the
pad (desoldering). After measuring 3.3 volts to both pins I re-ran serial
blaster.
> Now gives message :
> /*****************************
> 000000000000000000000000000000000
> ***Leaving OutputFile***
> 2048 Bytes in 3 seconds.
> --------------------------------------------------
> waiting for '>'
> ERROR!!! Expected '>' but found '<'
> *********************************/
>
> This is a little different than previous messages (before the mod):
> 0000000000000000000000000
> 2048 bytes in 4 seconds.
> waiting for '>'
> ERROR!!! Expected '>' but found '<'
>
> *****************************
> very curious indeed!
> I have an O, scope, if you think doing a few signal traces are needed I can
do that!
>
>
>
> Curtis Monroe <> wrote: Its likely the TS-7200 watchdog
timer is set for less than 8 seconds. The
> watchdog reboots the board before it can download the SerialBlaster boot
> loader. This isn't a problem on TS-7250 boards 'cause the watchdog is 8
> seconds, and most people can upload the boot image in that time.
>
> So here's my fix....
> Connect the FEED_WDOG/RESET pin of the 74HC4020 binary counter to the 3.3v
> supply. This forces a continuous watchdog feed. Unfortunately your CF
> connector is soldered over this chip, and you'd need access to the chip to
> solder off the reset pin (pin 11), and bend it up and solder it to the
> supply! Pill 11 is really hidden. It looks like you could use a Dremel
power
> tool to cut an access hole in the top of the CF card reader to have access
to
> the chip.
>
> It may also be possible to solder off Power pin (pin 16) (easily accessable
in
> the front without cutting the CF card reader). This may also stop the
> watchdog.
>
> (try, at your own risk)
> I know its not a very practical solution, sorry, the best I can think of
for
> now.
>
> -Curtis.
>
>
> On June 2, 2006 07:34 pm, zeener zits wrote:
> > Thanks for the idea.
> > My next step will be to trya and apply the info the Cirrus 9301 manual
to
> what I am trying to accomplish, as I had not done that yet (but knew I was
> missing important info).
> >
> >
> > yur_grampa <> wrote: Investigating the
Serialblaster
> error message:
> >
> > waiting for '>'
> > error!!!found '<'
> >
> > I found by sending a boot.bin of size less than 2k that the message
> > returned is:
> >
> > Success.
> >
> > Therefore I will now try to determine how to go from here to the
> > confirmation message:
> > waiting for '>'
> > found '>'
> >
> > . Obviously file length is a factor here.
> >
> > Perhaps the ts7200 uses different offsets than the ts7250(in the
> > boot.s or related files) and these will need to be edited.
> >
> >
> >
> >
> >
> >
> >
> >
> >
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