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TMS320F28388S: USING TMS320F28388S

Chong Yu
Intellectual 1435 points

Part Number: TMS320F28388S
Other Parts Discussed in Thread: C2000WARE

Hi,

My customer need assistance.

Code works after programming with jtag
But after soft reset or power reset it doesn’t work,
When I reconnect it says
_system_post_cinit() 0x3FD2AE (an error occurred: failed to parse the previous frame FP)

Both of Boot pin is set to Flash/USB mode

Please help. Thanks.

  • 0
    TI__Intellectual 1435 points

    It is an inquiry about unable to boot after reset with tms320f28388s.

  • 0 in reply to Chong Yu
    TI__Guru* 82910 points

    Chong,

    This is usually caused by not changing the entry point to the flash boot vector.  Please have the customer look at the example in C2000 Ware here: C:\ti\c2000\C2000Ware_3_04_00_00\driverlib\f2838x\examples\c28x\boot

    Specifically the .cmd file in the CPU1 project that has BEGIN location defined as:

    BEGIN            : origin = 0x080000, length = 0x000002

    and  in the sections:

    codestart           : > BEGIN, ALIGN(8)

    This likely is not in the .cmd file they are using for their project.

    Best,

    Matthew

  • 0 in reply to MatthewPate
    TI__Intellectual 1435 points

    Hi Matthew,

    My customer replied:

    MEMORY
    {
    /* BEGIN is used for the "boot to Flash" bootloader mode */
    BEGIN : origin = 0x080000, length = 0x000002
    ---------------------

    SECTIONS
    {
    codestart : > BEGIN, ALIGN(8)


    -----

    i Believe i'm using example flash lnk files,

    what to do now ?.?

    Regards.

  • 0 in reply to Chong Yu
    TI__Guru* 82910 points

    Customer needs to use the flash EMU Boot mode to simulate booting from flash and can debug the issue from there.  In CCS go to "Scripts" the EMU Boot mode->Boot to Flash.  Then under Run->Reset the device.  They should see this take them to a location in BROM.  They can load the symbols from the BROM in C2000Ware->libraries->ROM, etc if they want. 

    If they can get this to work then standalone should also work correctly.  If not we can debug where the code is failing/getting off course.

    Best,

    Matthew

  • 0 in reply to MatthewPate
    TI__Intellectual 1435 points

    Hi Matthew,

    My customer replied:

    3fd299: 00430032 LB 0x030032
    3fd29b: 0030 TRAP #16
    3fd29c: 0030 TRAP #16
    3fd29d: 0030 TRAP #16
    3fd29e: 002D TRAP #13
    3fd29f: 0042004F LB 0x02004f
    3fd2a1: 004F0054 LB 0x0f0054
    3fd2a3: 0000 ITRAP0
    3fd2a4: D206 MOVB XAR2, #0x6
    3fd2a5: 003F TRAP #31
    3fd2a6: D20A MOVB XAR2, #0xa
    3fd2a7: 003F TRAP #31
    3fd2a8: D212 MOVB XAR2, #0x12
    3fd2a9: 003F TRAP #31
    3fd2aa: D20E MOVB XAR2, #0xe
    3fd2ab: 003F TRAP #31
    3fd2ac: D216 MOVB XAR2, #0x16
    3fd2ad: 003F TRAP #31
    3fd2ae: 28AC0137 MOV @T, #0x0137
    3fd2b0: F7AC RPT @T
    3fd2b1: 7700 || NOP
    3fd2b2: 28AD0060 MOV @SP, #0x0060
    3fd2b4: 561F SETC OBJMODE

    3fd2b5: 5616 CLRC AMODE
    3fd2b6: 561A SETC M0M1MAP
    3fd2b7: 2940 CLRC PAGE0
    3fd2b8: 761F0000 MOVW DP, #0x0
    3fd2ba: 2902 CLRC OVM
    3fd2bb: FF69 SPM #0
    3fd2bc: 761F174E MOVW DP, #0x174e

    I was unable to see what happen

    debugs stops after boot falsh Emulation

    Break at address "0x3fd2ae" with no debug information available, or outside of program code.

    Regards.

  • 0 in reply to Chong Yu
    TI__Intellectual 1435 points

    it was _system_post_cinit() though i can't find any information about it

  • 0 in reply to Chong Yu
    TI__Guru* 82910 points

    Chong,

    Sorry for the late reply, I need another day to look deeper into the above and the BROM of the device.  I'll post another reply before the weekend.

    Best,

    Matthew

  • 0 in reply to MatthewPate
    TI__Guru* 82910 points

    Chong,

    Can customer look a the memory at address 0x80000/0x80001 and confirm the data at this location(after flash programming)?  Likely it will point to c_init symbol, but want to be sure this is programmed(not 0xFFFF).  I realize that .cmd earlier in the thread confirms it should have data, I just want to make sure this got programmed.

    Reason is that if it is erased, then device will switch to USB boot mode.

    Best,

    Matthew

  • 0 in reply to MatthewPate
    TI__Intellectual 1435 points

    Hi Matthew,

    My customer replied:

    for reasons i don't know, 0x080000 and 0x080001 only has 0xffff, i'm uploading my linker cmd files, could you kindly look at it?

    https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/171/7230.2838x_5F00_flash_5F00_lnk_5F00_cpu1.cmd

  • 0 in reply to Chong Yu
    TI__Guru* 82910 points

    Chong,

    Please ask the customer to include the file f2838x_codestartbranch.asm in their project.  It is located in C2000Ware in this path  C:\ti\c2000\C2000Ware_4_00_00_00\device_support\f2838x\common\source (I've also attached it to the post).

    This file contains the section directive for codestart that matches the linker.

    Best,

    Matthewf2838x_codestartbranch.asm