Re: Uploading and saving images

[Gary Thomas <gary at mlbassoc dot com>]

On Mon, 2004-08-30 at 14:21, Wayne Gemmell wrote:
> On Wednesday 18 August 2004 00:11, Wayne Gemmell wrote:
> > Hi all,
> >
> > I don't know if this is the right forum to post this but here goes
> > anyway...
> Hi, could anyone point me in the to a forum that can answer this post? I'm 
> really battling to fix this problem. I need to unplug it for testing.
> >
> > First off, when I try upload files through Minicom using X or Y Modem
> > protocols I get lots of NAK errors and then
> >
> > Ymodem sectors/kbytes sent: 249/31kRetry 0: NAK on sector
> > Ymodem sectors/kbytes sent: 253/31kRetry 0: NAK on sector
> > Ymodem sectors/kbytes sent: 254/31kRetry 0: Cancelled
> >
> > Transfer incomplete
> >
> > RedBoot> load -m y
> > *** Warning! Checksum failure - Addr: 207990, FF <> 46
> > xyzModem - CRC mode, 253(SOH)/0(STX)/2(CAN) packets, 123 retries
> > RedBoot>
> >
> > I get the same results from xmodem.
> >
> > My transfer protocol settings are
> > B  ymodem     /usr/bin/sb -vv                 Y    U    N       Y       Y
> > C  xmodem     /usr/bin/sx -vv                 Y    U    N       Y       N

Check that your timeouts are working correctly.  This can be a problem 
if your CYGACC_CALL_IF_DELAY_US is not right.  Try this:
  RedBoot> lo -m xm
then do nothing.  Measure how fast the "C" characters come out.  If they
come out much faster than 1 per 3-5 seconds, then you need to look at 
the delay functions.

> >
> > I can however load up the program in hyperterminal in Windows.
> >
> > Once loaded I follow the instructions in the documentation...
> > redboot> fis create file_name
> > redboot>fconfig
> > Do you want to run a boot script?>true
> > Enter boot script terminated by empty line>
> > fis load file_name
> > go 0x205000
> >
> > Set time out>5
> > Write>y
> >
> > I can run the program straight away but when I reset the unit (fx35) the
> > program fails to execute with no errors.
> >
> > Any ideas? I've seen similar questions through googling but no real
> > answers.

This can happen if your device has two serial ports.  RedBoot will 
gladly print messages and accept commands on either.  However, if 
you try and run a boot-script and use a port which is not the system
default, then you'll not see any messages get printed. 

-- 
Gary Thomas <gary@mlbassoc.com>
MLB Associates