Re: To test the Flash



Where are your bootloader and OS stored? In the flash that you want to
test? You realize that writing values to every location will destroy them,
right? Generally, for testing RAM, you'd do that in the bootloader, before
you have a full OS running, before the MMU is turned on, etc. I suppose
that you could destroy the contents of flash as part of that same testing
process, if you wanted to. Seems like maybe you haven't thought this out,
though...

Paul T.

"Jeyanthi Jayakumar" <JeyanthiJayakumar@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
message news:8B1D103A-E263-4414-9482-AC913C1CA2ED@xxxxxxxxxxxxxxxx
In my application, I want to test the Flash and SRAM memory for their
proper
working. So what we thought was to write 0xAA to all the locations and
read
it back the values and if it is right then we can understand that Flash is
working fine.

But my doubt is to execute this process i need to download the code to
SDRAM
and run from SDRAM. Is it possible to download the code to SDRAM and run
from
ti to test the FLASH. Because i don't want to write anything into the
flash
before it is tested. Can anyone suggest me the best method?

Thanks in advance,
Jeyanthi Jayakumar.


.



Relevant Pages

  • Re: How WinCE bootloader is Jumping to SDRAM after copying itself to i
    ... The bootloader uses boot.bib file to define its internal address mapping. ... > The Eboot, copies itself from Flash to SDRAM. ... Becoz, the compiler is generating ...
    (microsoft.public.windowsce.platbuilder)
  • Re: o_sync in vfat driver
    ... flash disks are not stupid as you assume. ... some experiments and the writer assumed that the device was broken. ... he states that even a single large file can destroy the drive ... The failure mode is a slow loss of data. ...
    (Linux-Kernel)
  • Re: o_sync in vfat driver
    ... flash disks are not stupid as you assume. ... some experiments and the writer assumed that the device was broken. ... It takes about a second to erase a 64k physical sector. ... he states that even a single large file can destroy the drive ...
    (Linux-Kernel)
  • Re: Field Updates of Windows CE
    ... I'd say, if you have the space on the card, yes, 1) rename old nk.bin ... that Windows Mobile actually does nk.bin replacements via the bootloader, ... many, if not all, of the Windows CE integration companies have bootloaders ... and flash copy, which is a BIG job, to my way of thinking. ...
    (microsoft.public.windowsce.embedded)
  • Re: Field Updates of Windows CE
    ... because you need both the SD card driver and the FATFS support. ... Interesting recommendation on not using eboot, but a different bootloader ... many, if not all, of the Windows CE integration companies have bootloaders ... and flash copy, which is a BIG job, to my way of thinking. ...
    (microsoft.public.windowsce.embedded)

Loading