Tool/software: Code Composer Studio
Hi,
so I have a strange problem.
To get my uP to boot form flash I need to:
1 start the rest of the sistem so CAN communication is running
2 connect power to the uP (does not boot)
3 remove the power
4 reconnect power to the uP (now boots), but I have to not weight to long else it does not boot.
This procedur is 100% repeatable. To run for flash I did all the same things that I did with my previews project.
Link file:
MEMORY
{
PAGE 0 : /* Program Memory */
/* Memory (RAM/FLASH) blocks can be moved to PAGE1 for data allocation */
/* BEGIN is used for the "boot to Flash" bootloader mode */
BEGIN : origin = 0x080000, length = 0x000002
RAMM0 : origin = 0x000122, length = 0x0002DE
RAMD0 : origin = 0x00B000, length = 0x000800
//RAMLS0 : origin = 0x008000, length = 0x000800
//RAMLS1 : origin = 0x008800, length = 0x000800
//RAMLS2 : origin = 0x009000, length = 0x000800
//RAMLS3 : origin = 0x009800, length = 0x000800
//RAMLS4 : origin = 0x00A000, length = 0x000800
RAMLS1doLS4 : origin = 0x008000, length = 0x002800
RAMGS14 : origin = 0x01A000, length = 0x001000
RAMGS15 : origin = 0x01B000, length = 0x001000
RESET : origin = 0x3FFFC0, length = 0x000002
/* Flash sectors */
FLASHA : origin = 0x080002, length = 0x001FFE /* on-chip Flash */
FLASHB : origin = 0x082000, length = 0x002000 /* on-chip Flash */
FLASHC : origin = 0x084000, length = 0x002000 /* on-chip Flash */
FLASHD : origin = 0x086000, length = 0x002000 /* on-chip Flash */
FLASHE : origin = 0x088000, length = 0x008000 /* on-chip Flash */
FLASHF : origin = 0x090000, length = 0x008000 /* on-chip Flash */
FLASHG : origin = 0x098000, length = 0x008000 /* on-chip Flash */
FLASHH : origin = 0x0A0000, length = 0x008000 /* on-chip Flash */
FLASHI : origin = 0x0A8000, length = 0x008000 /* on-chip Flash */
FLASHJ : origin = 0x0B0000, length = 0x008000 /* on-chip Flash */
FLASHK : origin = 0x0B8000, length = 0x002000 /* on-chip Flash */
FLASHL : origin = 0x0BA000, length = 0x002000 /* on-chip Flash */
FLASHM : origin = 0x0BC000, length = 0x002000 /* on-chip Flash */
FLASHN : origin = 0x0BE000, length = 0x002000 /* on-chip Flash */
FLASHO : origin = 0x0C0000, length = 0x002000 /* on-chip Flash */
FLASHP : origin = 0x0C2000, length = 0x002000 /* on-chip Flash */
FLASHQ : origin = 0x0C4000, length = 0x002000 /* on-chip Flash */
FLASHR : origin = 0x0C6000, length = 0x002000 /* on-chip Flash */
FLASHS : origin = 0x0C8000, length = 0x008000 /* on-chip Flash */
FLASHT : origin = 0x0D0000, length = 0x008000 /* on-chip Flash */
FLASHU : origin = 0x0D8000, length = 0x008000 /* on-chip Flash */
FLASHV : origin = 0x0E0000, length = 0x008000 /* on-chip Flash */
FLASHW : origin = 0x0E8000, length = 0x008000 /* on-chip Flash */
FLASHX : origin = 0x0F0000, length = 0x008000 /* on-chip Flash */
FLASHY : origin = 0x0F8000, length = 0x002000 /* on-chip Flash */
FLASHZ : origin = 0x0FA000, length = 0x002000 /* on-chip Flash */
FLASHAA : origin = 0x0FC000, length = 0x002000 /* on-chip Flash */
FLASHAB : origin = 0x0FE000, length = 0x002000 /* on-chip Flash */
PAGE 1 : /* Data Memory */
/* Memory (RAM/FLASH) blocks can be moved to PAGE0 for program allocation */
BOOT_RSVD : origin = 0x000002, length = 0x000120 /* Part of M0, BOOT rom will use this for stack */
RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */
RAMD1 : origin = 0x00B800, length = 0x000800
RAMLS5 : origin = 0x00A800, length = 0x000800
RAMGS0 : origin = 0x00C000, length = 0x001000
RAMGS1 : origin = 0x00D000, length = 0x001000
RAMGS2 : origin = 0x00E000, length = 0x001000
//RAMGS3 : origin = 0x00F000, length = 0x001000
//RAMGS4 : origin = 0x010000, length = 0x001000
//RAMGS5 : origin = 0x011000, length = 0x001000
//RAMGS6 : origin = 0x012000, length = 0x001000
//RAMGS7 : origin = 0x013000, length = 0x001000
RAMGS3do7 : origin = 0x00F000, length = 0x005000
RAMGS8 : origin = 0x014000, length = 0x001000
RAMGS9 : origin = 0x015000, length = 0x001000
RAMGS10 : origin = 0x016000, length = 0x001000
RAMGS11 : origin = 0x017000, length = 0x001000
RAMGS12 : origin = 0x018000, length = 0x001000
RAMGS13 : origin = 0x019000, length = 0x001000
}
SECTIONS
{
/* Allocate program areas: */
.cinit : > FLASHB PAGE = 0, ALIGN(4)
.pinit : > FLASHB, PAGE = 0, ALIGN(4)
.text : >> FLASHB | FLASHC | FLASHD | FLASHE PAGE = 0, ALIGN(4)
codestart : > BEGIN PAGE = 0, ALIGN(4)
#ifdef __TI_COMPILER_VERSION__
#if __TI_COMPILER_VERSION__ >= 15009000
.TI.ramfunc : {} LOAD = FLASHD,
RUN = RAMLS1doLS4,
LOAD_START(_RamfuncsLoadStart),
LOAD_SIZE(_RamfuncsLoadSize),
LOAD_END(_RamfuncsLoadEnd),
RUN_START(_RamfuncsRunStart),
RUN_SIZE(_RamfuncsRunSize),
RUN_END(_RamfuncsRunEnd),
PAGE = 0, ALIGN(4)
#else
ramfuncs : LOAD = FLASHD,
RUN = RAMLS1doLS4,
LOAD_START(_RamfuncsLoadStart),
LOAD_SIZE(_RamfuncsLoadSize),
LOAD_END(_RamfuncsLoadEnd),
RUN_START(_RamfuncsRunStart),
RUN_SIZE(_RamfuncsRunSize),
RUN_END(_RamfuncsRunEnd),
PAGE = 0, ALIGN(4)
#endif
#endif
/* Allocate uninitalized data sections: */
.stack : > RAMM1 PAGE = 1
.ebss : > RAMGS3do7 PAGE = 1
.esysmem : > RAMLS5 PAGE = 1
/* Initalized sections go in Flash */
.econst : >> FLASHF | FLASHG | FLASHH PAGE = 0, ALIGN(4)
.switch : > FLASHB PAGE = 0, ALIGN(4)
.reset : > RESET, PAGE = 0, TYPE = DSECT /* not used, */
}
/*
//===========================================================================
// End of file.
//===========================================================================
*/
Code start branch:
;//########################################################################### ;// ;// FILE: F2837xS_CodeStartBranch.asm ;// ;// TITLE: Branch for redirecting code execution after boot. ;// ;// For these examples, code_start is the first code that is executed after ;// exiting the boot ROM code. ;// ;// The codestart section in the linker cmd file is used to physically place ;// this code at the correct memory location. This section should be placed ;// at the location the BOOT ROM will re-direct the code to. For example, ;// for boot to FLASH this code will be located at 0x3f7ff6. ;// ;// In addition, the example F2837xS projects are setup such that the codegen ;// entry point is also set to the code_start label. This is done by linker ;// option -e in the project build options. When the debugger loads the code, ;// it will automatically set the PC to the "entry point" address indicated by ;// the -e linker option. In this case the debugger is simply assigning the PC, ;// it is not the same as a full reset of the device. ;// ;// The compiler may warn that the entry point for the project is other then ;// _c_init00. _c_init00 is the C environment setup and is run before ;// main() is entered. The code_start code will re-direct the execution ;// to _c_init00 and thus there is no worry and this warning can be ignored. ;// ;//########################################################################### ;// $TI Release: F2837xS Support Library v210 $ ;// $Release Date: Tue Nov 1 15:35:23 CDT 2016 $ ;// $Copyright: Copyright (C) 2014-2016 Texas Instruments Incorporated - ;// http://www.ti.com/ ALL RIGHTS RESERVED $ ;//########################################################################### *********************************************************************** WD_DISABLE .set 0 ;set to 1 to disable WD, else set to 0 .ref _c_int00 .global code_start *********************************************************************** * Function: codestart section * * Description: Branch to code starting point *********************************************************************** .sect "codestart" code_start: .if WD_DISABLE == 1 LB wd_disable ;Branch to watchdog disable code .else LB _c_int00 ;Branch to start of boot._asm in RTS library .endif ;end codestart section *********************************************************************** * Function: wd_disable * * Description: Disables the watchdog timer *********************************************************************** .if WD_DISABLE == 1 .text wd_disable: SETC OBJMODE ;Set OBJMODE for 28x object code EALLOW ;Enable EALLOW protected register access MOVZ DP, #7029h>>6 ;Set data page for WDCR register MOV @7029h, #0068h ;Set WDDIS bit in WDCR to disable WD EDIS ;Disable EALLOW protected register access LB _c_int00 ;Branch to start of boot._asm in RTS library .endif ;end wd_disable .end ;// ;// End of file. ;//
I defined _FLASH to c2000 compiler, predefined Symbols.
I added code_start to c2000 linker, advanced, symbol management specify program entry point:
Any idea where to start looking for the problem?
Best regards,
Marko
