Question

NIOS建立工程问题，nios2-elf/bin/ld.exe: Hello_World.elf section `.text' will not fit in region

d:/altera/11.0/nios2eds/bin/gnu/h-i686-mingw32/bin/../lib/gcc/nios2-elf/4.1.2/../../../../nios2-elf/bin/ld.exe: address 0x16f4c of Hello_World.elf section `.rwdata' is not within region `onchip_memory2'
d:/altera/11.0/nios2eds/bin/gnu/h-i686-mingw32/bin/../lib/gcc/nios2-elf/4.1.2/../../../../nios2-elf/bin/ld.exe: address 0x18c74 of Hello_World.elf section `.bss' is not within region `onchip_memory2'
d:/altera/11.0/nios2eds/bin/gnu/h-i686-mingw32/bin/../lib/gcc/nios2-elf/4.1.2/../../../../nios2-elf/bin/ld.exe: address 0x18c74 of Hello_World.elf section `.onchip_memory2' is not within region `onchip_memory2'
d:/altera/11.0/nios2eds/bin/gnu/h-i686-mingw32/bin/../lib/gcc/nios2-elf/4.1.2/../../../../nios2-elf/bin/ld.exe: address 0x16f4c of Hello_World.elf section `.rwdata' is not within region `onchip_memory2'
d:/altera/11.0/nios2eds/bin/gnu/h-i686-mingw32/bin/../lib/gcc/nios2-elf/4.1.2/../../../../nios2-elf/bin/ld.exe: address 0x18c74 of Hello_World.elf section `.bss' is not within region `onchip_memory2'
d:/altera/11.0/nios2eds/bin/gnu/h-i686-mingw32/bin/../lib/gcc/nios2-elf/4.1.2/../../../../nios2-elf/bin/ld.exe: address 0x18c74 of Hello_World.elf section `.onchip_memory2' is not within region `onchip_memory2'
d:/altera/11.0/nios2eds/bin/gnu/h-i686-mingw32/bin/../lib/gcc/nios2-elf/4.1.2/../../../../nios2-elf/bin/ld.exe: region `onchip_memory2' overflowed by 27764 bytes
collect2: ld returned 1 exit status
make: *** [Hello_World.elf] Error 1

Answer 1

你使用的是FPGA内部RAM来作为niosII的程序存储器，可是你的程序尺寸太大了，内部RAM定义的大小不够。

建议你:

1. 把内部RAM改大点;

2. 勾选niosII工程中的精简C代码选项减小elf文件尺寸(右键单击project名称->Nios II->BSP editor，把enable_small_c_library和enable_reduced_device_drivers勾上)。

3. 干脆用个外部存储器。