Re: [ECOS] is cyg_start required for redboot.img..?

["Michael Anburaj" <embeddedeng at hotmail dot com>]

Hi Satish,


> board..i m just concern about the instruction "bl   cyg_start"
> called in the vector.S file..
>         my program is in a infinte loop when it enters the cyg_start
> function. i believe this function calles the application program if
> present, but currently i don`t have any application program running.
>
>    i m just interested in building redboot.img..can i comment this line..
> will my redboot image be fine with out calling cyg_start routine.

vector.S initializes the platform by calling the HAL functions & after that 
it sets up the vector table, stack & ultimately it would call cyg_start() of 
?/packages/redboot/current/src/main.c?. This function is the main event loop 
for Redboot. Which would display the Redboot sign on screen on the console, 
Redboot?s prompt & wait for Redboot or GDB commands. If you take out this, 
then all you have is the startup code that will sit there without doing 
anything useful.

Make sure your vector.S calls the cyg_start of main.c in Redboot folder.

Hope this help!
-Mike.

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