Difference between revisions of "Minimal semihosted ARM Cortex-M "Hello World""

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(Goals)
(Goals)
Line 6: Line 6:
 
* Demonstrate that linking to C code is not necessary
 
* Demonstrate that linking to C code is not necessary
 
* Demonstrate that all required assembly code can be done within D
 
* Demonstrate that all required assembly code can be done within D
 +
* Demonstrate that the D toolchains are mature enough to produce correctly executing, albeit very simple, executable
 
* Provide a starting point, with a low barrier to entry, for developers to begin testing the toolchain, porting the D runtime and libraries to the ARM Cortex-M platform, and programming their ARM Cortex-M software in D
 
* Provide a starting point, with a low barrier to entry, for developers to begin testing the toolchain, porting the D runtime and libraries to the ARM Cortex-M platform, and programming their ARM Cortex-M software in D
  

Revision as of 10:44, 2 December 2013

The following is an extremely minimal, semihosted "Hello World" D program for ARM Cortex-M processors.

Goals

  • Verify ARM Cortex-M toolchain (compiler-->linker-->debugger)
  • Demonstrate that the D runtime and D standard library are not mandatory
  • Demonstrate that linking to C code is not necessary
  • Demonstrate that all required assembly code can be done within D
  • Demonstrate that the D toolchains are mature enough to produce correctly executing, albeit very simple, executable
  • Provide a starting point, with a low barrier to entry, for developers to begin testing the toolchain, porting the D runtime and libraries to the ARM Cortex-M platform, and programming their ARM Cortex-M software in D

Tools

  • (host computer) Arch Linux 64-bit
  • (compiler) LDC with ARM backend
  • (linker & debugger) GNU Tools for GNU Tools for ARM Embedded Processors 4.7-2013-q3
  • (GDB server) OpenOCD 0.7.0
  • (JTAG emulator) JTAG-lock-pick Tiny 2