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LAUNCHXL-F28P65X: SCI boot on F28P65x LaunchPad

Luke Chen
Expert 5090 points

Part Number: LAUNCHXL-F28P65X
Other Parts Discussed in Thread: C2000WARE

Hi champs,

The default SCIA communication pins on F28P65x LaunchPad are GPIO42 and GPIO43, however the default SCIA pins for SCI boot of F28065x are GPIO12 and GPIO13.

How can customers evaluate SCI boot on F28P65x LaunchPad without programming the OTP memory please?

Regards,

Luke

  • 0
    TI__Guru* 95315 points

    Luke,

       This can be only done using the emulation boot-flow. Boot-ROM source along with the symbol library is provided in C2000ware. For the source files, see C:\ti\c2000\C2000Ware_5_01_00_00\libraries\boot_rom\f28P65x\rev0\rom_sources\cpu1\F28P65x_ROM\bootROM\source. Once you load the symbols, you should be able to single-step through the source and be able to understand what the code is doing. In bootloader_sci.c, you will need to manually tweak the value of "bootMode" variable. See from line 251 onwards.

  • 0 in reply to Hareesh Janakiraman
    TI__Expert 5090 points

    Hareesh,

    I download symbol F28P65x_CPU1_ROM.out for SCI boot evaluation, I can download flash kernel by using the method you suggested. However, flash programmer stucks and fails to do firmware upgrade, below I capture two screenshots the flash programmer stops for your reference.

    Is there anything else I need to take care? Can you do SCI boot firmware upgrade on F28P65x LP without problem?

    ** Screenshot1, not complete flash kernel download and stucks

    ** Screenshot 2, complete flash kernel download but software stucks.

    Regards,

    Luke

  • 0 in reply to Luke Chen
    TI__Guru* 95315 points

    Luke,

                Please provide details on the host. What code are you trying to program?  Can you try programming a simple code like “blinky” (i.e. GPIO toggling code)?

  • 0 in reply to Hareesh Janakiraman
    TI__Expert 5090 points

    Hareesh,

    Here is the software information I used for evaluation,

    • Flash Kernel : C:\TI\c2000\C2000Ware_5_01_00_00\driverlib\f28p65x\examples\c28x_dual\flash_kernel.
    • App code for test : C:\TI\c2000\C2000Ware_5_01_00_00\driverlib\f28p65x\examples\c28x\led.

    Below is the commands I used for flash programmer,

    serial_flash_programmer.exe -d f28p65x -k flash_kernel_c28x_dual_ex1_c28x1.txt -a led_ex1_blinky.txt -b 9600 -p COM22 -v

    Please let me know if you see any problem, thanks.

    Regards,

    Luke

  • +1 in reply to Luke Chen
    TI__Genius 15080 points

    Hi Luke,

    I was able to download the kernel using the Flash Kernel project for LaunchPad through the following:

    • Switching the set bootMode in the kernel to use SCI_BOOT_ALT3 and rebuilding the project
    • In CCS setting the device's emulation boot mode addresses with associated values:0xD00 (0xFFFF), 0xD01 (0x5AFF), 0xD04 (0x0061)

    What is the bootMode you see set in the Flash Kernel project, is it SCI_BOOT_ALT5? If so, you can change for the LaunchPad.

    Thanks and regards,

    Charles