Dear all, we are trying to setup ECOS in order to use an SDRAM connected on the external bus of an AT91SAM7SE. We had a look at the init process of ECOS and we have some difficulties to understand when software is supposed to configure SDRAM controller, and so when it is supposed to switch from internal SRAM to external SDRAM. Massa chapter HAL startup explains that a storage area is reserved for insterrupt stack ; should it be in SDRAM at that point ? When does ECOS start using the heap ? The only place where we find SDRAM address/size is in hal/arm/at91/at91sam7s/current/include/pkgconf/mlt_arm_at91sam7s256_rom.h / mlt_arm_at91sam7s256_rom.ldi. How are they generated ?
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