Target (RealView ARM)

Xtal (MHz)

Specifies the XTAL frequency of your device. XTAL is used to configure the debugger and Flash programmer. Note that XTAL reflects the main oscillator externally connected to the device. 

Operating System

Select the RTX Kernel which adds the correct RTX library and enables kernel aware debugging.

Code Generation

Select ARM-Mode or Thumb-Mode for the application.

Use Cross-Module Optimization enables the linker feedback file that allows further code optimizations.

Select usage for the Floating Point Co-processor on devices that have a Vector Floating Point (VFP) co-processor:

• not used: code generated does not use any VFP instructions (Compiler switch: none, Assembler switch: none)
• library calls: compiler generates library calls that use VFP instructions (generates typically the smallest code and should be used when Thumb mode is selected) (Compiler switch: --fpu=softvfp+vfpv2, Assembler switch: --fpu=vfpv2)
• in-line (strict ANSI): compiler mostly uses the VFP unit with in-line code (generates fast code that conforms to the ANSI standard).  (Compiler switch: --fpu=vfpu2, Assembler switch: --fpu=vfpv2)
• in-line (fast): compiler uses for all VFP instructions in-line code (error checking does not always conform to the ANSI standard). (Compiler switch: --fpu=vfpv2 --fpmode=fast, Assembler switch: --fpu=vfpv2)

Use MicroLIB to change the C run-time library set for smallest code application code. MicroLIB is not fully ANSI compatible but sufficient for most small embedded applications.

Read/Only Memory Areas

Specify the RO areas (typically located in ROM space). The default check box before each entry enables the area globally for the application. Individual modules may be assigned in the Properties dialog to specific areas. Startup selects the area used for the Startup code.

Read/Write Memory Areas

Specify the ZI and RW areas (typically located in RAM space). The default check box before each entry enables the area globally for the application. Individual modules may be assigned in the Properties dialog to specific areas. Noinit selects areas that should be excluded from zero initialization.

Note

• The settings for Read/Only Memory Areas and Read/Write Memory Areas are used to create a linker scatter file. This requires that the setting Use Memory Layout from Target Dialog is enabled in the Linker dialog.
• the Evaluation version of the RealView ARM tools do not support linker scatter file. As a result, the settings for Read/Only Memory Areas andRead/Write Memory Areas cannot be used.