Re: [ECOS] Redboot for Assabet goes silent

Re: [ECOS] Redboot for Assabet goes silent

[Martin van Veen]

Hi guys,

"Jesper" == Jesper Skov <jskov@redhat.com>
"Gary" == Gary Thomas <gthomas@redhat.com> 

>>>> And it did fix it for me too. Downloading over a serial works
>>>> now, but during download a NAK for each packet is returned. sx
>>>> resends it and then the packet is accepted. That makes the
>>>> download very slow, but having a slow download is much better
>>>> than having no download at all :-)
>>>
>>> Gary> I'm glad it fixed it for you. 
>>> Gary> As for the NAK problem, what is your host computer?
>>> Gary> Have you tried using Ymodem?  I've tried this with both
>>> Gary> Linux and Windows hosts and I get pretty good performance,
>>> Gary> without any extra NAKs.
>>
>> Jesper> Is there only one flavor of assabet boards? I ask because
>> Jesper> I also had a NAK-for-every-packet problem, and it was
>> Jesper> basically due to the target CPU being too slow.
>
> Gary> Yes, however they can be set up to run at different
> Gary> (software selectable) clock frequencies. Is this truly
> Gary> an Assabet, or some other SA1110 based system?

As far as I know I've got a true Assabet board (including the Neponset)
There is a sticker on the backside of the board saying that my board is
a 8A1110DEVDBD. If I look at the pictures on the ARM Linux on Assabet
page (www.cs.cmu.edu/~wearable/software/assabet.html) I've got the same
board.

Triggered by Gary's statement that he has no problems on Linux and
Windows hosts, I've done some testing. I've got a Linux host, but I
also tested using a Windows NT host with HyperTerminal. All tests
showed that the data is sent (getting loads of NAKs) and at the end
is rejected (which I did not notice at the time I wrote the piece of
text above). In other words: I can download, but the data does not
arrive :-(

First, the serial port I use is configured as:

  $ stty < /dev/ttyS0
  speed 38400 baud; line = 0;
  -brkint -imaxbel

I try to upload a file containing a romfs, so I have to upload it
in raw mode. I use minicom -o /dev/ttyS0 to make contact with the
board. Then I type the Redboot load command and then exit minicom
to enter the sx or sb command on the command line. Below you can
find the output of my tests...

----

  Redboot> load -r -v -m xMODEM -b 0x1000000 romfs.img

  $ sx -k romfs.img < /dev/ttyS0 > /dev/ttyS0
  Sending romfs.img, 103 blocks: Give your local XMODEM receive command
now.
  Xmodem sectors/kbytes sent:   8/ 1kRetry 0: Got 7c for sector ACK
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: Retry Count Exceeded

  Transfer incomplete

----

  Redboot> load -r -v -m xMODEM -b 0x1000000 romfs.img

  $ sx romfs.img < /dev/ttyS0 > /dev/ttyS0
  Sending romfs.img, 103 blocks: Give your local XMODEM receive command
now.
  Xmodem sectors/kbytes sent:   1/ 0kRetry 0: Got 7c for sector ACK
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: NAK on sector
  Retry 0: Retry Count Exceeded

  Transfer incomplete

----

  Redboot> load -r -v -m yMODEM -b 0x1000000 romfs.img

  $ sb romfs.img < /dev/ttyS0 > /dev/ttyS0
  Sending: romfs.img
  Ymodem sectors/kbytes sent:   3/ 0kRetry 0: Got 2f for sector ACK
  Retry 0: NAK on sector
  Ymodem sectors/kbytes sent:   5/ 0kRetry 0: Got 2d for sector ACK
  Retry 0: NAK on sector
  Ymodem sectors/kbytes sent:   7/ 0kRetry 0: Got 5c for sector ACK
  Retry 0: NAK on sector
  Ymodem sectors/kbytes sent:   9/ 1kRetry 0: Got 7c for sector ACK
  Retry 0: NAK on sector
  Ymodem sectors/kbytes sent:  11/ 1kRetry 0: Got 2d for sector ACK
  Retry 0: NAK on sector
  Ymodem sectors/kbytes sent:  13/ 1kRetry 0: Got 00 for sector ACK
  Retry 0: NAK on sector

  .
  .
  .

  Ymodem sectors/kbytes sent:  99/12kRetry 0: Got 7c for sector ACK
  Retry 0: NAK on sector
  Ymodem sectors/kbytes sent: 101/12kRetry 0: Got 2f for sector ACK
  Retry 0: NAK on sector
  Ymodem sectors/kbytes sent: 103/12kRetry 0: Got 2d for sector ACK
  Retry 0: NAK on sector
  Bytes Sent:  13312   BPS:268                             
   Error: Illegal command: RedBoot> Retry 0: Bad CRC
  Retry 0: Got ERROR
  00 Error: Illegal command: Retry 0: Bad CRC
  Retry 0: Got ERROR
  00RedBoot> Retry 0: Bad CRC
  Retry 0: Got ERROR
  00 Error: Illegal command: Retry 0: Bad CRC
  Retry 0: Got ERROR
  00RedBoot> Retry 0: Got ERROR
  Retry 0: Got ZNAK
   Error: Illegal command: Retry 0: Got ERROR
  Retry 0: Got ZNAK

----
 
I performed the same tests on a Windows NT machine with HyperTerminal.
Having contact with the board is no problem, but uploading using
different protocols (XMODEM/XMODEM 1K/YMODEM/YMODEM-G) gives the same
result as on the Linux host... (HyperTerminal gives me no error
messages, but tells that I can wait forever before the data is
uploaded).

Strange enough though, is that I can upload over the serial line when
I am sending over an application for debugging with gdb, so I guess
that the serial port configuration is not the problem... (unless gdb
is setting up the serial port itself).

Greetings,
Martin.


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Re: [ECOS] Redboot for Assabet goes silent

[Gary Thomas]

 
On 23-Nov-2000 Martin van Veen wrote:
> Hi guys,
> 
> "Jesper" == Jesper Skov <jskov@redhat.com>
> "Gary" == Gary Thomas <gthomas@redhat.com> 
> 
>>>>> And it did fix it for me too. Downloading over a serial works
>>>>> now, but during download a NAK for each packet is returned. sx
>>>>> resends it and then the packet is accepted. That makes the
>>>>> download very slow, but having a slow download is much better
>>>>> than having no download at all :-)
>>>>
>>>> Gary> I'm glad it fixed it for you. 
>>>> Gary> As for the NAK problem, what is your host computer?
>>>> Gary> Have you tried using Ymodem?  I've tried this with both
>>>> Gary> Linux and Windows hosts and I get pretty good performance,
>>>> Gary> without any extra NAKs.
>>>
>>> Jesper> Is there only one flavor of assabet boards? I ask because
>>> Jesper> I also had a NAK-for-every-packet problem, and it was
>>> Jesper> basically due to the target CPU being too slow.
>>
>> Gary> Yes, however they can be set up to run at different
>> Gary> (software selectable) clock frequencies. Is this truly
>> Gary> an Assabet, or some other SA1110 based system?
> 
> As far as I know I've got a true Assabet board (including the Neponset)
> There is a sticker on the backside of the board saying that my board is
> a 8A1110DEVDBD. If I look at the pictures on the ARM Linux on Assabet
> page (www.cs.cmu.edu/~wearable/software/assabet.html) I've got the same
> board.
> 
> Triggered by Gary's statement that he has no problems on Linux and
> Windows hosts, I've done some testing. I've got a Linux host, but I
> also tested using a Windows NT host with HyperTerminal. All tests
> showed that the data is sent (getting loads of NAKs) and at the end
> is rejected (which I did not notice at the time I wrote the piece of
> text above). In other words: I can download, but the data does not
> arrive :-(
> 
> First, the serial port I use is configured as:
> 
>   $ stty < /dev/ttyS0
>   speed 38400 baud; line = 0;
>   -brkint -imaxbel
> 
> I try to upload a file containing a romfs, so I have to upload it
> in raw mode. I use minicom -o /dev/ttyS0 to make contact with the
> board. Then I type the Redboot load command and then exit minicom
> to enter the sx or sb command on the command line. Below you can
> find the output of my tests...
> 
> ----
> 
>   Redboot> load -r -v -m xMODEM -b 0x1000000 romfs.img
> 
>   $ sx -k romfs.img < /dev/ttyS0 > /dev/ttyS0

Why break out of minicom at all?  I always just use ^A-S (send file) which
sends directly without messing around with the line, etc.
>  
> I performed the same tests on a Windows NT machine with HyperTerminal.
> Having contact with the board is no problem, but uploading using
> different protocols (XMODEM/XMODEM 1K/YMODEM/YMODEM-G) gives the same
> result as on the Linux host... (HyperTerminal gives me no error
> messages, but tells that I can wait forever before the data is
> uploaded).
> 
> Strange enough though, is that I can upload over the serial line when
> I am sending over an application for debugging with gdb, so I guess
> that the serial port configuration is not the problem... (unless gdb
> is setting up the serial port itself).

Also, do you have the latest patches in place?  I'm not sure that they
have made it to anonCVS yet.  There were serious problems with the
X/Y modem stuff which kept it from working at all using Windows.

I can send them to you [privately, no need to clutter the mailing list].

Re: [ECOS] Redboot for Assabet goes silent

[Jonathan Larmour]

Gary Thomas wrote:
> 
> Also, do you have the latest patches in place?  I'm not sure that they
> have made it to anonCVS yet.  There were serious problems with the
> X/Y modem stuff which kept it from working at all using Windows.

It won't be in anon cvs yet. The update happens tomorrow.

Jifl
-- 
Red Hat, 35 Cambridge Place, Cambridge, UK. CB2 1NS  Tel: +44 (1223) 728762
"Plan to be spontaneous tomorrow."  ||  These opinions are all my own fault

Re: [ECOS] Redboot for Assabet goes silent

[Gary Thomas]

On 27-Nov-2000 Martin van Veen wrote:
> Hi all,
> 
> --- Gary Thomas <gthomas@redhat.com> wrote:
>> Here are the patches for X/Y modem support in RedBoot.
>> 
>> Please let me know if they don't help.  I am most interested in 
>> improving this support in RedBoot.
> 
> The patch works fine. I can now upload successfully with awesome
> speed (compared to what I had earlier), except when I use the -v
> switch. Then the I have the same problem as before. So I guess
> that the -v option shouldn't be used for the time being...
>

This should be documented (I forgot to point it out).  Use of "-v"
is contraindicated when downloading over the console.  There is no
way to get it out :-)

Anyway, I'm glad that it's working better for you.

Re: [ECOS] Redboot for Assabet goes silent

[Martin van Veen]

Hi all,

--- Gary Thomas <gthomas@redhat.com> wrote:
> Here are the patches for X/Y modem support in RedBoot.
> 
> Please let me know if they don't help.  I am most interested in 
> improving this support in RedBoot.

The patch works fine. I can now upload successfully with awesome
speed (compared to what I had earlier), except when I use the -v
switch. Then the I have the same problem as before. So I guess
that the -v option shouldn't be used for the time being...

Thanks,
Martin.


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Re: [ECOS] Redboot for Assabet goes silent

[Gary Thomas]

On 22-Nov-2000 Jesper Skov wrote:
>>>>>> "Gary" == Gary Thomas <gthomas@redhat.com> writes:
> 
>>>  And it did fix it for me too. Downloading over a serial works now,
>>> but during download a NAK for each packet is returned. sx resends
>>> it and then the packet is accepted. That makes the download very
>>> slow, but having a slow download is much better than having no
>>> download at all :-)
> 
> Gary> I'm glad it fixed it for you.
> 
> Gary> As for the NAK problem, what is your host computer?  Have you
> Gary> tried using Ymodem?  I've tried this with both Linux and Windows
> Gary> hosts and I get pretty good performance, without any extra NAKs.
> 
> Is there only one flavor of assabet boards? I ask because I also had a
> NAK-for-every-packet problem, and it was basically due to the target
> CPU being too slow.

Yes, however they can be set up to run at different (software selectable)
clock frequencies.

Is this truly an Assabet, or some other SA1110 based system?

Re: [ECOS] Redboot for Assabet goes silent

[Jesper Skov]

>>>>> "Gary" == Gary Thomas <gthomas@redhat.com> writes:

>>  And it did fix it for me too. Downloading over a serial works now,
>> but during download a NAK for each packet is returned. sx resends
>> it and then the packet is accepted. That makes the download very
>> slow, but having a slow download is much better than having no
>> download at all :-)

Gary> I'm glad it fixed it for you.

Gary> As for the NAK problem, what is your host computer?  Have you
Gary> tried using Ymodem?  I've tried this with both Linux and Windows
Gary> hosts and I get pretty good performance, without any extra NAKs.

Is there only one flavor of assabet boards? I ask because I also had a
NAK-for-every-packet problem, and it was basically due to the target
CPU being too slow.

Jesper

RE: [ECOS] Redboot for Assabet goes silent

[Gary Thomas]

On 22-Nov-2000 Martin van Veen wrote:
> Hi,
> 
> --- Gary Thomas <gthomas@redhat.com> wrote:
>> We seem to have broken in the Assabet/GDB code in the last few days.
>> 
>> Try making this change, it fixed it for me.
>>
>> [ 8< patch ]
>>
> 
> And it did fix it for me too. Downloading over a serial works
> now, but during download a NAK for each packet is returned. sx
> resends it and then the packet is accepted. That makes the
> download very slow, but having a slow download is much better
> than having no download at all :-)

I'm glad it fixed it for you.

As for the NAK problem, what is your host computer?  Have you
tried using Ymodem?  I've tried this with both Linux and Windows
hosts and I get pretty good performance, without any extra NAKs.

RE: [ECOS] Redboot for Assabet goes silent

[Martin van Veen]

Hi,

--- Gary Thomas <gthomas@redhat.com> wrote:
> We seem to have broken in the Assabet/GDB code in the last few days.
> 
> Try making this change, it fixed it for me.
>
> [ 8< patch ]
>

And it did fix it for me too. Downloading over a serial works
now, but during download a NAK for each packet is returned. sx
resends it and then the packet is accepted. That makes the
download very slow, but having a slow download is much better
than having no download at all :-)

Thanks,
Martin.


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RE: [ECOS] Redboot for Assabet goes silent

[Gary Thomas]

We seem to have broken in the Assabet/GDB code in the last few days.

Try making this change, it fixed it for me.

Index: hal/arm/sa11x0/var/current/src/hal_diag.c
===================================================================
RCS file: /home/cvs/ecc/ecc/hal/arm/sa11x0/var/current/src/hal_diag.c,v
retrieving revision 1.11
diff -u -5 -p -r1.11 hal_diag.c
--- hal/arm/sa11x0/var/current/src/hal_diag.c   2000/10/26 18:39:02     1.11
+++ hal/arm/sa11x0/var/current/src/hal_diag.c   2000/11/21 15:43:24
@@ -92,10 +92,12 @@ init_channel(channel_data_t* __ch_data)
 
     // Clear sticky (writable) status bits.
     base->utsr0 = SA11X0_UART_RX_IDLE | SA11X0_UART_RX_BEGIN_OF_BREAK |
                   SA11X0_UART_RX_END_OF_BREAK;
 
+#ifdef CYGPKG_HAL_ARM_SA11X0_SA1100MM
+    // This code has problems on other SA11x0 platforms.
     if (SA11X0_UART1_BASE == (volatile unsigned long *)base) {
         cyg_uint32 pdr, afr, par;
 
         HAL_READ_UINT32(SA11X0_GPIO_PIN_DIRECTION, pdr);
         HAL_READ_UINT32(SA11X0_GPIO_ALTERNATE_FUNCTION, afr);
@@ -108,10 +110,11 @@ init_channel(channel_data_t* __ch_data)
         HAL_WRITE_UINT32(SA11X0_GPIO_ALTERNATE_FUNCTION, afr | SA11X0_GPIO_PIN_14 |
SA11X0_GPIO_PIN_15);
 
         // Pin reassignment for serial port 1.
         HAL_WRITE_UINT32(SA11X0_PPC_PIN_ASSIGNMENT, par | SA11X0_PPC_UART_PIN_REASSIGNMENT_MASK);
     }
+#endif
 
     // Set UART to 8N1 (8 data bits, no partity, 1 stop bit)
     base->utcr0 = SA11X0_UART_PARITY_DISABLED | SA11X0_UART_STOP_BITS_1 |
                   SA11X0_UART_DATA_BITS_8;
 


On 21-Nov-2000 Martin van Veen wrote:
> Hi,
> 
> since I'm not able to use Redboot via Ethernet, I'm very pleased
> that uploading data via the serial line is now included in Redboot.
> Since it is not built in in the prebuilt Redboot image (the one in
> hal/arm/sa11x0/assabet/current/images/redboot_ROM.bin) I have to
> build it myself. Building and flashing (using Jflash-linux) the
> newly created image gives no problem at all.
> 
> However, when I use minicom to attach to the board or use Insight to
> debug a program I get no reaction at all. The strange thing is that
> when I flash the prebuilt image on the board, everything works fine
> (except serial downloading :-( ). So I guess that it has something
> to do with the configuration of the serial port, but I have no clue
> at all. I built and flashed the redboot image as follows:
> 
> $ mkdir redboot
> $ cd redboot
> $ ecosconfig new assabet redboot
> $ ecosconfig import $ECOS_REPOSITORY/hal/arm/sa11x0/assabet/ \
>     current/misc/redboot_ROM.cfg
> $ ecosconfig tree
> $ make
> $ Jflash-linux install/bin/redboot.bin
> 
> Any ideas???
> 
> Thanks in advance,
> Martin van Veen.
> 
> 
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[ECOS] Redboot for Assabet goes silent

[Martin van Veen]

Hi,

since I'm not able to use Redboot via Ethernet, I'm very pleased
that uploading data via the serial line is now included in Redboot.
Since it is not built in in the prebuilt Redboot image (the one in
hal/arm/sa11x0/assabet/current/images/redboot_ROM.bin) I have to
build it myself. Building and flashing (using Jflash-linux) the
newly created image gives no problem at all.

However, when I use minicom to attach to the board or use Insight to
debug a program I get no reaction at all. The strange thing is that
when I flash the prebuilt image on the board, everything works fine
(except serial downloading :-( ). So I guess that it has something
to do with the configuration of the serial port, but I have no clue
at all. I built and flashed the redboot image as follows:

$ mkdir redboot
$ cd redboot
$ ecosconfig new assabet redboot
$ ecosconfig import $ECOS_REPOSITORY/hal/arm/sa11x0/assabet/ \
    current/misc/redboot_ROM.cfg
$ ecosconfig tree
$ make
$ Jflash-linux install/bin/redboot.bin

Any ideas???

Thanks in advance,
Martin van Veen.


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