threadx_demo.txt

Sharp LH7A400 BSP平台无关部分的代码,有很高的参考价值,尤其是系统架构设计上,设计成移植度很高的BSP.

/***********************************************************************
 * Example purpose
 ***********************************************************************
 This is a simple demo that demonstrates the use and function of the
 SDK7A400 startup code and the Threadx interrupt handler when used with
 the ThreadX kernel. The startup code sets up the board into an initial
 known state and then branches to the user application code at
 c_entry().

 c_entry() will setup the ThreadX environment and start the ThreadX
 kernel with a few tasks and the LQ035 ADTFT display.

 ***********************************************************************
 * Using the makefile
 ***********************************************************************
 Prior to building an image, the ABL package, LH7A400 CSP, and SDK7A400
 BSP, must of been prebuilt. If the libraries do not exist yet, a link
 error will occur.

 Copy all the necessary ThreadX files into this directory before running
 the makefile.

 Build an executable image by typing:
     make (or make release)

 For ARM targets, an axf file and a bin file will be created.
 FOR GHS and GNU targets, an elf file and a bin file will be created.

 The generated bin file can be FLASHed into FLASH and is linked to be
 executed at address 0x00000000 on reset of the SDK7A400.

 A 'test' release can be built by typing:
     make test
 A test image is linked to execute at address 0xB0000000 in internal
 memory. For small images (of a total size less than 80Kbytes), this
 image can be built and loaded prior to building the release image
 and FLASHing it.

 ***********************************************************************
 * Toolset issues
 ***********************************************************************
Presently, this build only works with the ARM ADS toolset.