CMSIS-DAP Refactoring Efforts

Goals are:

• merge in mbed build system tools
• automate testing for validating port contributions and patches
• use mbed exporters for creating project files to debug when needed
• share common source USB, RTOS, IO, etc.
• Add hooks where custom handlers are needed but generally not break buids when adding new targets and features

Current Status

Nothing on this branch is guaranteed to work. Current efforts are with the bootloader and then the interface project

Bootloader:

• K20DX128: working / work in progress

Interface:

• Not working. Changes to the directory structure and hooks broke these

ToDo

• mbed_ser driver installer to not require hardware be connected
• Change USB to expose HID without needing the CDC driver
• Implement XON/XOFF flowcontrol
• Incorporate mbed build system
• Automate basic cross OS tests
• Change offset address to 0x8000 to match OpenSDA for Freescale only targets. NXP stays at 0x5000
• Only erase sectors that code fits in
• Use media eject for MSD
• Verify semi-hosting on HID connection
• RAM allocation for virtual file-system hidden files and folders
• version.txt file for offline, non html-access to the bootloader and CMSIS-DAP version
• Add hex file support (interface only I think). Exists on master but needs verification and testing
• Add srec file support (interface only I think)
• etc...

Tests

A baseline for testing the dap firmware should cover:

1. program hello world echo application onto target MCU
   • copy using cmd line method
   • copy using drag n drop method
   • Top 3 browsers for each OS
2. flash with pyOCD
   • change demo app with package to be hello world echo

Note: Test should be completed when echo is received so CDC support is inclusive to all tests.

Note: To automate bootloader testing it may be worth putting a sequence in the dap firmware to execute the bootloader (ie: erase vector table at offset and reset)

Directory

• bootloader - source files that are only used by the bootloader
• dap- source files that are only used by the CMSIS-DAP application
• flash - Source files to build position independant flash algorithms. Adding new flash algorithms
• shared - A software component that is used by both bootloader and interface
• tools - python files for building and testing the projects as well as exporting project files for debugging

+---bootloader
¦   +---common
¦   +---hal
¦       +---freescale
¦       +---nxp
+---dap
¦   +---common
¦   +---hal
¦       +---freescale
¦       +---nordic
¦       +---nxp
+---flash
¦   +---common
¦   +---hal
¦       +---freescale
¦       +---nxp
+---shared
¦   +---cmsis
¦   +---common
¦   ¦   +---freescale
¦   ¦   +---nxp
¦   +---rtos
¦   +---usb
+---tools
    +---build
    +---export
    +---test