zeener,
1. I paste you an old message from Jesse (04.13.2005 00:13)
------
Your board is not damaged, but its not going to boot again until its flash
can be reprogrammed. The serial boot won't work as-is because in standard
units the watchdog boots up armed and if it can't be reset within two
seconds of bootup, it resets the board. You can send the board back to
Technologic Systems to be reprogrammed.
The other way is to purchase a 7200 "blaster" daughter board. When this
board is attached onto the PC104 bus, the 7200 CPLD will detect it and
rearrange memory space such that the daughter board's flash hijacks the boot
process. This board is sold for some of our high volume customers to aid in
their manufacturing process to enable fast custom reprogramming of flash and
is also what we use internally to run bring-up tests over NFSROOT and to put
the initial programming on the CPU boards. The Linux kernel will detect
both the blast board's flash and also the bottom board flash and present
both flash chips as MTD devices that can be separately (re)programmed with
the "dd" command.
//Jesse Off
------
2. According to the site:
http://www.embeddedarm.com/images/ob_947xobcllw.jpg It's a 16 PC/104 connector.
http://www.embeddedarm.com/epc/ts9420-arm-spec-h.htm It's a 8 bit bus, but you can connect a 8bit bus on the 16 bit PC/104
pass thru connector (like the TS-SER1).
Am I right Jesse ?
As the peripheral is rather expensive you should, send back your TS-7200
to TS and ask them to reprogram the PLD (for 8s watchdog). TS-7250 can
be restored with the serial_blaster.
Matthieu
zeener zits wrote:
> Matthieu:
> It appears many customers are crashing their ts7xxx
> and needing assistance. I am glad you got yours going.
> I plan on purchasing the ts7250 and the blaster board
> unless there is a software solution that could work
> with all ts7xxx
series and could go open source.
> My ts7000 board is a rev B with the 1 second watchdog.
>
> I do not expect Jesse Off to answer that big list of
> questions I had(due to proprietary nature of the
> ts7xxx) but two of them really make me wonder (before
> I purchase a blaster): and wonder if you may know
> 1. Will the 9420 be able to recover a ts7xxx board
>
>> from any form of
>>
>>> fis erase command from redboot (say there are some
>>>
>> over curious users)?
>>
>>> (assume no hardware failure/operator error)...
>>>
>>> 2. is an 8 or 16 pc104 bit pass thru connector
>>>
>> required to use the 9420? (assume an RTC is plugged
>>
> into the pc104).
>
>
>
>
> --- Matthieu Crapet <
com> wrote:
>
>
>> Greetings,
>>
>> I don't know if it will help you, but I also crashed
>> my TS-7200 SBC (Rev
>> C PLD) few days ago.
>> With the help of serial_blaster (and Curtis Monroe),
>> I modified boot.S
>> and added two functions: one to erase and another to
>> write a NOR flash
>> block (0x20000 = 128kb). It's less than 80 lines of
>> assembly code.
>>
>> The process is:
>> - load (from serial) and execute boot.bin
>> - load the file to flash in memory (addresse
>> 0x00008000), write it to flash
>> - mov pc, #0x60000000 @ jump to TS-BOOTROM
>>
>> I even loaded the whole 1.9mb redboot partition,
>> writed it in flashed,
>> executed it :
>> ldr r0, =0x60620000
@ redboot entry point (8MB
>> flash)
>> mov pc, r0
>>
>> Note: that you can also jump to load redboot and
>> execute it directly in
>> memory.
>>
>> I had some more difficulties because I have an old
>> 166MHz system clock
>> so I had to change the system speed and SDRAM
>> timings, fortunately
>> Curtis has commented the dead listings of a
>> ts-bootrom (see
>> ts7250-bootrom.
S).
>>
>> Matthieu
>>
>> PS: Few answers:
>> - 3 : Eddie said me (in a mail) that the TS-7200
>> will not work with a
>> Disk On Chip(DOC).
>> - 4 : You can't, I had to send back my SBC from
>> Paris (France) to
>> Arizona to get my Rev C PLD ! :-)
>>
>>
>> yur_grampa wrote:
>>
>>> Jesse:
>>> This answers most of my questions.
>>> >From what you said, it appears the 9420 is the
>>>
>> most cost effective
>>
>>> alternative. Please answer these questions for
>>>
>> me:
>>
>>> 1. Will the 9420 be able to recover a ts7xxx board
>>>
>> from any form of
>>
>>> fis erase command from redboot (say there are some
>>>
>> over curious users)?
>>
>>> (assume no hardware failure/operator error)...
>>>
>>> 2. is an 8 or 16 pc104 bit pass thru connector
>>>
>> required to use the 9420?
>>
>>> 3. I noted on
>>>
>> http://www.embedded.com/epc/prod_PER.htm that the
>>
>>> description states 32 mB Disk on Chip for
>>>
>> storage***BUT*** the actual
>>
>>> hardware description of the 9240 says 8mB flash
>>>
>> used for
>>
>>> bootloader,linux and flash... Is there an error on
>>>
>> the site?
>>
>>> 4. How can the customer(if they can) reprogram the
>>>
>> CPLD? If they
>>
>>> cannot then how do you do it?(eg. jtag?)
>>>
>>> 5. What function does the reserved flash address
>>>
>> 0x60000000 -
>>
>>> 0x60062000 perform???
>>>
>>> 6. What is the major
factor that is holding up the
>>>
>> release of the
>>
>>> little board (1" x 1") you've created that sits on
>>>
>> the DI"?
>>
>>> Thank you in advance....
>>>
>>> --- In .com, "Jesse Off"
>>>
>> <> wrote:
>>
>>>
>>>
>>>>> Wow!
>>>>>
>>>>> I guess Technologic would be the first place to
>>>>>
>> start.... The job
>>
>>>>> would be much easier if they would provide
>>>>>
>> detailed info about the
>>
>>>>> jtag interface - starting with: "Is this a good
>>>>>
>> idea? Will it work
>>
>>>>>
>>>>>
>>>> to
>>>>
>>>>
>>>>> reflash the boards?" :-)
>>>>>
>>>>>
>>>> We would gladly accept contract work projects
>>>>
>> whose end-goal is
>>
>>>> something open-source.
>>>>
>>>> The flash JTAG interface is not hooked up
>>>>
>> anywhere, so you can't
>>
>>>> program flash using that. If you hook up the
>>>>
>> embedded trace JTAG on
>>
>>>> the CPU-- well then perhaps you could make the
>>>>
>> processor
run opcodes
>>
>>>> to program flash but that sounds complicated.
>>>>
>>>> We use TS-9420 boards to write the initial flash
>>>>
>> in production.
>>
>>>> http://www.embeddedarm.com/epc/ts9420.htm. This
>>>>
>> contains a 8Mbyte
>>
>>>> strataflash that overrides the bootup of the
>>>>
>> processor. We use this
>>
>>>> because its fast and we can just boot to Linux
>>>>
>> and pull the latest
>>
>>>> images off NFS and use the MTD drivers to write
>>>>
>> the flash rather
>>
>>>> than rolling our own low-level
flash write code.
>>>>
>>>> We also can boot the boards with a little board
>>>>
>> (1" x 1") we've
>>
>>>> created that sits on the DIO header and can
>>>>
>> override the CPU bootup
>>
>>>> through SPI. This isn't for sale yet though we
>>>>
>> have been toying
>>
>>>> with the idea of releasing it as a lower-cost
>>>>
>> alternative to using
>>
>>>> the TS-9420 blast board. Currently we use it for
>>>>
>> custom boards that
>>
>>>> don't have the PC104 bus or as a way to save
>>>>
>> about 20 LUTs on the
>>
>>>> glue logic CPLD.
>>>>
>>>> All new boards we've created we arm the watchdog
>>>>
>> for 8 second expiry
>>
>>>> to give time to serial bootup. The 1 second
>>>>
>> arming at bootup was an
>>
>>>> unfortunate "feature" on the TS-7200.
>>>>
>>>> If the price of the TS-9420 board is at issue,
>>>>
>> perhaps this
>>
>>>> community could purchase 1 together and mail it
>>>>
>> around/rent it out
>>
>>>> as needed among members?
>>>>
>>>> //Jesse Off
>>>>
>>>>
>>>>
>>>>
>>>>> I'm not sure what you call jtag-ICE - what I
>>>>>
>> have is a simple flash
>>
>>>>> utility. It is not a debugger or emulator by
>>>>>
>> any means; it has no
>>
>>>>> hooks for runtime debugging.
>>>>>
>>>>> If the intent is to reflash a dead board or
>>>>>
>> flash a custom image
>>
>>>>>
>>>>>
>>>> to a
>>>>
>>>>
>>>>> new board, the debrick utility I've worked with
>>>>>
>> would make a good
>>
>>>>> starting point; AFAIK all it would need is some
>>>>>
>> detailed
>>
>>>>>
>>>>>
>>>> information
>>>>
>>>>
>>>>> on the type and organization of the various TS
>>>>>
>> boards.
>>
>>>>> --Yan
>>>>>
>>>>>
>>>>>
>>>
>>>
>>>
>>>
>>>
>>> Yahoo! Groups Links
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
> === message truncated ===
>
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
