解决on_chip_memory过小的问题.doc

【转载】解决on_chip_memory过小的问题 2010-12-12 21:34:57| 分类： work. | 标签：|字号大中小 订阅1、NIOS II IDE 报错 有些同学开始学NIOS II时，使用的是ON_CHIP_MEMORY；在NIOS II IDE编译过程当中遇到以下问题：Unable to reach errno (at 0x02081024) from the global pointer (at 0x0208aaf0) because the offset (-39628) is out of the allowed range, -32678 to 32767或者，Severity and Description Path Resource Location Creation Time Idld: region onchip_mem is full (ep2c_onchip_led_test.elf section .text). Region needs to be 5640 bytes larger. ep2c_onchip_led_test line 0 1250685275234 14679ld: section .bss 00001aac - 00001bbf overlaps section .text 00001020 - 00003607 ep2c_onchip_led_test line 0 1250685275234 14682ld: section .rodata 00001020 - 0000104b overlaps section .text 00001020 - 00003607 ep2c_onchip_led_test line 0 1250685275234 14680ld: section .rwdata 0000104c - 00001aab overlaps section .text 00001020 - 00003607 ep2c_onchip_led_test line 0 1250685275234 14681 又或者：make -s all includesCompiling hello_led.c.Linking ep2c_onchip_led_test.elf./cygdrive/c/altera/81/nios2eds/bin/nios2-gnutools/H-i686-pc-cygwin/bin/./lib/gcc/nios2-elf/3.4.6///nios2-elf/bin/ld:region onchip_mem is full (ep2c_onchip_led_test.elf section .text). Region needs to be 5640 bytes larger./cygdrive/c/altera/81/nios2eds/bin/nios2-gnutools/H-i686-pc-cygwin/bin/./lib/gcc/nios2-elf/3.4.6///nios2-elf/bin/ld:section .rodata 00001020 - 0000104b overlaps section .text 00001020 - 00003607/cygdrive/c/altera/81/nios2eds/bin/nios2-gnutools/H-i686-pc-cygwin/bin/./lib/gcc/nios2-elf/3.4.6///nios2-elf/bin/ld:section .rwdata 0000104c - 00001aab overlaps section .text 00001020 - 00003607/cygdrive/c/altera/81/nios2eds/bin/nios2-gnutools/H-i686-pc-cygwin/bin/./lib/gcc/nios2-elf/3.4.6///nios2-elf/bin/ld:section .bss 00001aac - 00001bbf overlaps section .text 00001020 - 00003607collect2: ld returned 1 exit statusmake: * ep2c_onchip_led_test.elf Error 1Build completed in 2.609 seconds 2、解决方法如下第一步： 第二步： 第三步： 重新编译，问题就解决啦。 3、问题分析程序过大，存储空间过小是导致这种错误的根本原因。按照以上设置，笔者正常编译之后的控制台给出： 可以发现还有3516 Bytes的空间。 另，如果使用SDRAM建议不要勾选small C library和reduced