On Fri, Apr 18, 2014 at 3:55 AM, Tomek Lorek <tlo...@gmail.com> wrote:
>> Suppose you have a app() function:
>>
>> __attribute__((section(".app_main")))
>> void app() {
>> // body
>> }
>
> Copy-paste error: it should be
> __attribute__((section(".mysection")))
> void app() {
> // body
> }
>
> this is aligned with "position forced with
> __attribute__((section(".mysection")))"
>
> Best Regards,
> Tomek
>
> 2014-04-18 10:53 GMT+02:00 Tomek Lorek <tlo...@gmail.com>:
>> Hi,
>> I'd like to make some functions to be executed from RAM. There are
>> some nice examples of how this can be done in CCS (e.g
>> http://embedded-funk.blogspot.com/2013/11/running-c-function-in-ram-on-msp430.html)
>> but the syntax of TI linker's .cmd file is not compatibile with GNU ld
>> (specifically the load and run parts of ".ram_code : load =
>> FLASH_RAM_CODE, run = RAM_CODE" makes ld to raise the syntax error).
>>
>> Suppose you have a app() function:
>>
>> __attribute__((section(".app_main")))
>> void app() {
>> // body
>> }
>>
>> The code needs to be copied from flash (position forced with
>> __attribute__((section(".mysection")))) to RAM (with memcpy), but
>> assuming they have the same name how to make the microcontroller run
>> the copied function from RAM not the original one from flash when
>> called app();
Without looking at the example code you cited: don't give them the same name.
In general, create a pointer-to-function and invoke through it.
void (* fp)() = ram_where_code_copied;
fp();
Peter
>> ?
>>
>> Thanks in advance!
>>
>> Best Regareds,
>> Tomek
>
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