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Hi, I am trying to boot up my program through flash. I have been able to flash the board before using simple programs such as modified versions of the POST program. Now I want to flash a more complicated program which is run from sdram. I am a bit confused at how to approach flashing this program. I was thinking I would burn the contents of my current out file to 0x90000400 in flash and then I must right a 1k bootloader that will load the coff file from 0x90000400 in the same way as CSS loads programs in the DSP. Is there any examples of how to go about doing this? How do I read the coff file and place the sections in there appropriate places? Is there some better way to do this? Thanks Ron |
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Booting program from flash
Started by ●October 28, 2003
Reply by ●October 29, 20032003-10-29
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Hello Ron,
There are a few ways to 'skin that cat' [sorry if you are a cat
lover].
One is a utility from TI called 'flashburn' [if you are a
registered CCS user, you can download it - registration may not be
required].
I prefer the 'manual way' [an overview is listed-research TI docs
for more details]
Your COFF file is meant to be processed by a loader. The first step
is to use a TI utility called hex6x.exe - this converts from COFF to a simple
ASCII readable format [something like "add-data-data-data-csum"].
You can then run flash.exe
[\ti\examples\dsk6711\board_util\flash\Host\Debug\flash.exe].
A troubleshooting tip -
Plug an embedded breakpoint near the beginning of your code, select
debug->reset CPU. The DSP will reset, the flash will start booting and
then halt at the BP and give control to CCS.
You can use the following as an embedded breakpoint in non-optimized C
code-
asm(BP_LABEL: .word 0x10000000);
As far as the 'code layout' is concerned, it is up to you [and
maybe 'how many bits that you need']
mikedunn
ron_zach <r...@yahoo.com> wrote: Hi, |
Reply by ●October 31, 20032003-10-31
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Hi, If you have more than one DSP chained you can not use Flashburn(it is only for one dsp). Hex6x is the tool that convert COFF format file into formats that programmer can use. I think spend some time to understand COFF format is valued. You can parse the binary stream you need from COFF and translate it into a big array and write your own program in CCS to burn the Flash. Tao Wang ShangHai Hello Ron,
There are a few ways to 'skin that cat' [sorry if you are a cat
lover].
One is a utility from TI called 'flashburn' [if you are a
registered CCS user, you can download it - registration may not be
required].
I prefer the 'manual way' [an overview is listed-research TI docs
for more details]
Your COFF file is meant to be processed by a loader. The first step
is to use a TI utility called hex6x.exe - this converts from COFF to a simple
ASCII readable format [something like "add-data-data-data-csum"].
You can then run flash.exe
[\ti\examples\dsk6711\board_util\flash\Host\Debug\flash.exe].
A troubleshooting tip -
Plug an embedded breakpoint near the beginning of your code, select
debug->reset CPU. The DSP will reset, the flash will start booting and
then halt at the BP and give control to CCS.
You can use the following as an embedded breakpoint in non-optimized C
code-
asm(BP_LABEL: .word 0x10000000);
As far as the 'code layout' is concerned, it is up to you [and
maybe 'how many bits that you need']
mikedunn
ron_zach <r...@yahoo.com> wrote: Hi, _____________________________________ Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group. _____________________________________ About this discussion group: To Join: Send an email to c6x-s u...@yahoogroups.com To Post: Send an email to c...@yahoogroups.com To Leave: Send an email to c...@yahoogroups.com Archives: http://www.yahoogroups.com/group/c6x Other Groups: http://www.dsprelated.com ">Yahoo! Terms of Service. -- _______________________________________________ |
