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LAUNCHXL-F28069M: Running from Flash on F28069M

Lotfi BAGHLI
Intellectual 870 points
Part Number: LAUNCHXL-F28069M
Other Parts Discussed in Thread: MOTORWARE,

Hi

I am trying to port my program that runs well in a RAM configuration to a Flash configuration

So I exclude from compilation the 

f28069F_ram_lnk.cmd  file and replace it with

F28069M.cmd

I still have the

F2806x_Headers_nonBIOS.cmd

in my project for the Peripheral registers

In the beginning of the code I have the 

#ifdef _FLASH
  // Copy time critical code and Flash setup code to RAM
  // The RamfuncsLoadStart, RamfuncsLoadEnd, and RamfuncsRunStart
  // symbols are created by the linker. Refer to the linker files.
  memCopy((uint16_t *)&RamfuncsLoadStart,(uint16_t *)&RamfuncsLoadEnd,(uint16_t *)&RamfuncsRunStart);

now, It compiles and runs (with the debugger)

do I have to replace the lib

IQmath_fpu32.lib

with 2806x_IQmath_BootROMSymbols_fpu32.lib

?

but if I unplug the USB then replug it, it doesn't boot, What is the configuration of the JP BOOT ? J1 J2 J3 

Can I still use GUI with FLASH activated ?

Any clue appart from reading the 

Running_from_Flash_spra958l.pdf

Thanks

  • 0
    TI__Guru** 112570 points
    Please download and install motorware version 18, all projects can support running code in both Flash and RAM. You may open a lab project and select "Flash" build configurations by "Project-> Build Configurations->Set Active-> 1 Flash.. ", and then the project can support running code in Flash.
    For a new project you created, the steps are as below
    1. You may only need to replace F28069F_ram_lnk.cmd with F28069F.cmd, and pre-define the "FLASH" by "Project->Properties->Build->C2000 Compiler->Predefines Symbols".
    2. Don't need replace other files in the project.
    3. Set the correct mode by setting the S1 on LaunchXL-F28069M, the detailed setting can be found in schematic of LaunchXL-F28069M.
    4. You can use GUI continuously, but you need set to emulation boot to enable the on-board JTAG emulator.
  • 0 in reply to Yanming Luo
    Intellectual 870 points
    What is the correct mode of S1 ?
  • 0 in reply to Lotfi BAGHLI
    TI__Guru** 112570 points

    As the boot mode table in the schematic of LaunchXL-F28069M, Set S1-3 to OFF, S1-1 and S1-2 to ON if you want to run the code in Flash without connecting the JTAG emulator. Only need to set S1-3 to ON if you want to run the code under emulation boot mode, the mode can support running code in both Flash and RAM. More detailed description about boot mode can be found in reference manual of F2806x.

  • 0 in reply to Yanming Luo
    Intellectual 870 points

    Thanks, but I found the doc of the LAUNCHXL-F28069M Overview sprui11.pdf

     completely unclear:

    5.3 Boot Mode Selection
    The LaunchPad's F28069M device includes a boot ROM that performs some basic start-up checks and
    allows for the device to boot in many different ways. Most users will either want to perform an emulation
    boot or a boot to flash (if they are running the application standalone). S1 has been provided to allow
    users to easily configure the pins that the bootROM checks to make this decision. The switches on S1
    correspond to:
    Switch Function
    1 GPIO34
    2 GPIO37
    3 TRSTn
    Keep in mind that the debugger does not connect if the device is not in the emulation boot mode (TRST
    switch in the up position). More information about boot mode selection can be found in the Boot ROM
    section of the TMS320x2806x Piccolo Technical Reference Guide (SPRUH18).

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

    this post explain better

    https://e2e.ti.com/support/microcontrollers/c2000/f/171/p/489498/1768299#1768299

    but

    I run the Example_2806xFlash

    Without the need to change S1, I can start debugging or start the prog. (wthout debugging) simply by connection power USB

    Whereas my program, doesn't boot alone when connecting the power. I can only run it with CCS. Though I see he is flashing memory in (Flash mode)

  • 0 in reply to Lotfi BAGHLI
    TI__Guru** 112570 points
    As I replied above post, the code can run from both flash and ram if you connected the JTAG emulator by setting the TRST to HIGH, this emulation boot mode that you mean debugger mode does not need to set GPIO37/G34.

    You need to set TRST to OFF on launchXL-F28069 to disconnect the JTAG emulator, and set GPIO37 and GPIO34 to HIGH which set the boot mode to GetMode, the default behavior of the GetMode option on an OTP unprogrammed devices is to boot to flash.

    The datasheet, reference manual of F2806x should have the same description on bootloader modes, you may refer to the boot mode selection in these two docs to set the S1 on launchXL-F28069, which is the same as the table in the schematic of launchXL-F28069.

    Btw, you must set TRST to ON if you want to connect the on-board JTAG emualtor via USB.