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Problem with programming via rs232 by C2prog. Works ok with CCS

Piotr Ludwiniak
Prodigy 140 points

Hello.

I have problem with programming processor 28335 with rs232. I use c2prog and everything is ok when I erase and program. It looks like everything is ok,  but it doesn't work. I have found that if I erase all sections without B after programming processor starts. If I clear all sections including B processor doesn't start. If I program with same code via JTAG everything is ok. Processor always starts. I attach my cmd file.

  • 0
    Prodigy 140 points

    I solved the problem. Flash B is on page 1( data memory) and I have something like this in my cmd file:

    BEFORE (doesn't work)

    PAGE 1 :   /* Data Memory */

    ...

       RAMDMA2     : origin = 0x00C800, length = 0x003801

       FLASHB      : origin = 0x330000, length = 0x008000     /* on-chip FLASH */

    ...

    SECTIONS
    {

       RAM3                 : LOAD = FLASHB,
       {
                            div_f32.obj (.text),
                            atan2_f32.obj (.text),
                            atan_f32.obj (.text),
                            sincos_f32.obj (.text),
                            cos_f32.obj (.text),
                            sin_f32.obj (.text),
                            sqrt_f32.obj (.text),
                            isqrt_f32.obj (.text),
       }

                            RUN = RAMDMA2,
                                LOAD_START(_RAM3_loadstart),
                              LOAD_END(_RAM3_loadend),
                             RUN_START(_RAM3_runstart)
                             PAGE = 1

    ...

    }

    I divide into 2 sections RAMDMA2 and RAMDMA3 and moved RAMDMA2 to page 0:

    AFTER (works correctly)

    PAGE 0:    /* Program Memory */
    ...
       RAMDMA2     : origin = 0x00C800, length = 0x002000
       FLASHC      : origin = 0x328000, length = 0x008000     /* on-chip FLASH */
    ...


    PAGE 1 :   /* Data Memory */

    ...
       RAMDMA3     : origin = 0x00E800, length = 0x001800
       FLASHB      : origin = 0x330000, length = 0x008000     /* on-chip FLASH */

    ...
    }

    SECTIONS
    {

       RAM3                 : LOAD = FLASHC,
       {
                            div_f32.obj (.text),
                            atan2_f32.obj (.text),
                            atan_f32.obj (.text),
                            sincos_f32.obj (.text),
                            cos_f32.obj (.text),
                            sin_f32.obj (.text),
                            sqrt_f32.obj (.text),
                            isqrt_f32.obj (.text),
       }
       
                             RUN = RAMDMA2,
                                LOAD_START(_RAM3_loadstart),
                              LOAD_END(_RAM3_loadend),
                             RUN_START(_RAM3_runstart)
                             PAGE = 0

    ...

    }