Lpc2000

Hello All,

I try used linker for automatic assigment adresses for data stored in fram (spi or i2c).
Its possible ?

I saw in WinAVR, that I can use macro like this:
    #define EEPROM__attribute__ ((section(".eeprom")))
next I can define variable:
    int number EEPROM;
and  "&number" return valid addres in eeprom.

My linker scipt is something like this:

MEMORY 
{
flash : ORIGIN = 0, LENGTH = 512K
ram : ORIGIN = 0x40000000, LENGTH = 32K
fram_spi : ORIGIN = 0x10000000, LENGTH = 8K
}
__stack_end__ = 0x40000000 + 32K - 4;
SECTIONS 
{ 

FRAM_SPI : 
{
*(.fram)
} >fram_spi
. = 0;
startup : 
{
*(.startup)
} >flash

But lpc21isp and philips isp  throw some errors:

lpc21isp(v1.27) : Record Type 04 not yet implemented - ignore?

philips flash utility:
"Code in Hex file exceeds Flash Limitations"
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Jaromir

Maybe try NOLOAD
> FRAM_SPI :
> {
> *(.fram)
> } >fram_spi

FRAM_SPI NOLOAD:
{
*(.fram)
  } >fram_spi

> But lpc21isp and philips isp  throw some errors:
>
> lpc21isp(v1.27) : Record Type 04 not yet implemented - ignore?
>
> philips flash utility:
> "Code in Hex file exceeds Flash Limitations"

If NOLOAD does not work use objcopy to remove the FRAM_SPI section from 
the ELF
before downloading.


-- 
42Bastian Schick

Thanks Bastian !

This works!
FRAM_SPI  (NOLOAD):
{
 *(.fram)
} >fram_spi

Jaromir

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