flash_test

#include "system.h"# include "string.h"# include "stdio.h"# include "sys/alt_irq.h"# include "unistd.h"# include "alt_types.h"# include "flashtest.h"

int main(void)

{

unsigned char buf[100];

unsigned short *flash_test_address;

int i;

int result;

int fail_count = 0;

flash_test_address = (unsigned short *)EXT_FLASH_BASE;

// |

// | Erase the flash. Report result.

// |

printf("(1) erasing flash at 0x%08x\n",flash_test_address);

result = nr_flash_erase_sector((unsigned short *)EXT_FLASH_BASE, flash_test_address);

printf(" result = %d\n",result);

// |

// | Fill the buffer with random (but repeatable) values.

// |

for (i = 0; i < 100; ++i)

// buf = rand();

buf = i; // test value

// |

// | Write that stuff to flash...

// |

printf("(2) writing flash...\n");

result = nr_flash_write_buffer((unsigned short *)EXT_FLASH_BASE,

flash_test_address,

buf,

100); // api wants number of short words

printf(" result = %d\n",result);

// |

// | Read that stuff back, and report if it matches, or what.

// |

printf("(3) reading flash.\n");

for (i = 0; i < 100; ++i)

{

unsigned short a,b;

a = buf;

b = flash_test_address;

if(a != http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/cool.gif

{

printf("verify failure at location 0x%08x (expected 0x%04x, got 0x%04x)\n",

&flash_test_address[i],

a,http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/cool.gif ;

fail_count++;

if(fail_count >= 10)

goto no_more_verifying;

}

}

no_more_verifying:

}

EXT_FLASH_BASE 0x00000000

ONCHIP_RAM_BASE 0x00200000

complile error:

Kind Status Priority Description Resource In Folder Location

Error

/cygdrive/e/EDA/Altera/kits/nios2/bin/nios2-gnutools/H-i686-pc-cygwin/bin/../lib/gcc-lib/nios2-elf/3.3.3/../../../../nios2-elf/bin/ld region onchip_ram is full (flash.elf section .text) flash line 0

Error /cygdrive/e/EDA/Altera/kits/nios2/bin/nios2-gnutools/H-i686-pc-cygwin/bin/../lib/gcc-lib/nios2-elf/3.3.3/../../../../nios2-elf/bin/ld section .rodata [00000020 -> 000005db] overlaps section .exceptions [00000020 -> 00000327] flash line 0

Error /cygdrive/e/EDA/Altera/kits/nios2/bin/nios2-gnutools/H-i686-pc-cygwin/bin/../lib/gcc-lib/nios2-elf/3.3.3/../../../../nios2-elf/bin/ld section .rwdata [000005e0 -> 000020e3] overlaps section .text [00000328 -> 0000e37f] flash line 0

I want to ask why appear the errors?

the rountine is no problem,because I have used them in niosI.

Thank you!