Hi Forum
I'm using a LPC2478 with 8 MB external RAM. In the project option I have reserved the off-chip area RAM1 to be the framebuffer. Off-chip RAM2 area is the rest of the external RAM. This is set to default. I also have set the on-chip area IRAM1 as being default.
So my question is. How does KEIL compile my code then? Does it put the const/static stuff in the on-chip RAM first and then in the off-chip, or is it unpredictable where things are placed?
Also, it seems that the framebuffer gets corrupted, when the IRAM1 is not marked as default and only the RAM2 is marked as default?
Thomas
Hi
Done that, but I still failed to find what I was looking for.
The question is: did you play with a scatter loading file?
. . . SIGNAL_EVENT SIGNAL_EVENT_FUNCTION_LOCATION FIXED SIGNAL_EVENT_FUNCTION_SIZE { freertos_signal_route.o (firmware_event_interface) } ER_IROM2 +0 (0x80000 - SIGNAL_EVENT_FUNCTION_LOCATION - SIGNAL_EVENT_FUNCTION_SIZE) { .ANY (+RO) } ; FIRST 0x440 BYTES USED BY FIRMWARE AND TO REMAP INTERRUPT VECTORS RW_IRAM1 0x40000440 0xFBC0 { ; RW data LIST.o (+RW +ZI) QUEUE.o (+RW +ZI) TASKS.o (+RW +ZI) TIMERS.o (+RW +ZI) PORT.o (+RW +ZI) PORTasm.o (+RW +ZI) } . . .
No I have not played with a scatter loading file. Just set the areas in the KEIL project settings.