[ECOS] rom Application problem with serial port

[aprakash at tataelxsi dot co dot in]

Hi,

     I m trying to run a simple application from flash which will open serial port /dev/ser1 and write hello world message..

    I have choosen default option for integrator with posix support and flash support.  my flash memory size is 32MB, RAM size is 320KB. i have modified include/pkgconf/*_rom.h file and *_rom.ldi files.  I pasted below too...

     I have enabled tty channal #0,and #1 also. when my application open my serial port, it returns -2.

    please help me to figureout to access serial port ...

  // eCos memory layout - Tue Feb 29 14:25:49 2000

// This is a generated file - do not edit

#include <cyg/infra/cyg_type.h>
#include <stddef.h>

#define CYGMEM_REGION_ram (0)
//#define CYGMEM_REGION_ram_SIZE (0x01000000)
#define CYGMEM_REGION_ram_SIZE (0x00050000)   // my Ram size..
#define CYGMEM_REGION_ram_ATTR (CYGMEM_REGION_ATTR_R | CYGMEM_REGION_ATTR_W)
#define CYGMEM_REGION_rom (0x24040000)        // my executable in FLASH    
#define CYGMEM_REGION_rom_SIZE (0x02000000)
#define CYGMEM_REGION_rom_ATTR (CYGMEM_REGION_ATTR_R)
#ifndef __ASSEMBLER__
extern char CYG_LABEL_NAME (__heap1) [];
#endif
#define CYGMEM_SECTION_heap1 (CYG_LABEL_NAME (__heap1))
//#define CYGMEM_SECTION_heap1_SIZE (0xf00000 - (size_t) CYG_LABEL_NAME (__heap1))
#define CYGMEM_SECTION_heap1_SIZE (0x00050000 - (size_t) CYG_LABEL_NAME (__heap1))

#ifndef __ASSEMBLER__
extern char CYG_LABEL_NAME (__pci_window) [];
#endif
#define CYGMEM_SECTION_pci_window (CYG_LABEL_NAME (__pci_window))
#define CYGMEM_SECTION_pci_window_SIZE (0x100000)

------------------------------

ldi file 

// eCos memory layout - Tue Feb 29 14:25:49 2000

// This is a generated file - do not edit

#include <cyg/infra/cyg_type.inc>

MEMORY
{
    ram : ORIGIN = 0, LENGTH = 0x00050000
    rom : ORIGIN = 0x24040000, LENGTH = 0x02000000
}

SECTIONS
{
    SECTIONS_BEGIN
    SECTION_rom_vectors (rom, 0x24040000, LMA_EQ_VMA)
    SECTION_text (rom, ALIGN (0x4), LMA_EQ_VMA)
//    SECTION_text (rom, ALIGN (0x1), LMA_EQ_VMA)
    SECTION_fini (rom, ALIGN (0x4), LMA_EQ_VMA)
    SECTION_rodata (rom, ALIGN (0x4), LMA_EQ_VMA)
    SECTION_rodata1 (rom, ALIGN (0x4), LMA_EQ_VMA)
    SECTION_got (rom, ALIGN (0x4), LMA_EQ_VMA)
    SECTION_fixup (rom, ALIGN (0x4), LMA_EQ_VMA)
    SECTION_gcc_except_table (rom, ALIGN (0x4), LMA_EQ_VMA)
    SECTION_fixed_vectors (ram, 0x20, LMA_EQ_VMA)
    SECTION_data (ram, ALIGN (0x4), FOLLOWING (.gcc_except_table))
    SECTION_bss (ram, ALIGN (0x4), LMA_EQ_VMA)
    CYG_LABEL_DEFN(__heap1) = ALIGN (0x8);
//    CYG_LABEL_DEFN(__pci_window) = 0xf00000; . = CYG_LABEL_DEFN(__pci_window) + 0x100000;
    SECTIONS_END
}

 

Thanks
Prakash


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