12 Create Application for Use With the Bootloader

In order to upgrade the application using the bootloader, application images are created with a starting address of 0x10020 (default). The bootloader occupies the flash area below this address. To achieve this, the flash start address defined in the linker command file must be changed.

/*----------------------------------------------------------------------------*/ /* Linker Settings */ --retain="*(.intvecs)" /*----------------------------------------------------------------------------*/ /* Memory Map */ MEMORY { VECTORS (X) : origin=0x00010020 length=0x00000020 /*sector 4/5 are used for application */ FLASH_CODE (RX) : origin=0x00010040 length=0x8000 - 0x40 fill=0xFFFFFFFF FLASH0 (RX) : origin=0x00018000 length=0x00200000 - 0x18000 FLASH1 (RX) : origin=0x00200000 length=0x00200000 STACKS (RW) : origin=0x08000000 length=0x00001500 RAM (RW) : origin=0x08001500 length=0x0007EB00 } /*----------------------------------------------------------------------------*/ /* Section Configuration */ SECTIONS { .intvecs : {} > VECTORS .text align(32) : {} > FLASH_CODE .const align(32) : {} > FLASH_CODE .cinit align(32) : {} > FLASH_CODE .pinit align(32) : {} > FLASH_CODE .bss : {} > RAM .data : {} > RAM .sysmem : {} > RAM }

To create an application using TI Code Composer Studio 9.x, use the linker command file included in this application report as a reference for your project. The included linker command file sets up the starting address of exception vector table to 0x10020 for the binary. In the project properties window, type the following command in “Post-Built Steps" to generate binary file:

"${CCE_INSTALL_ROOT}/utils/tiobj2bin/tiobj2bin" "${BuildArtifactFileName}" "${BuildArtifactFileBaseName}.bin" "${CG_TOOL_ROOT}/bin/armofd" "${CG_TOOL_ROOT}/bin/armhex" "${CCE_INSTALL_ROOT}/utils/tiobj2bin/mkhex4bin"

The resulting binary will be placed in your project folder, and binary file name is projectName.bin.