Epson S1D13705 technical manual Porting Libse to a new target platform

Page 64	Epson Research and Development
	Vancouver Design Center

9.5 Porting LIBSE to a new target platform

Building Epson Research and Development applications like a simple HelloApp for a new target platform requires 3 things, the HelloApp code, the 13705HAL library, and a some standard C functions (portable ones are encapsulated in our mini C library LIBSE).

HelloApp

HelloApp Source code

C Library Functions (LIBSE for embedded platforms)

13705HAL Library

Components needed to build 13705 HAL application

For example, when building HELLOAPP.EXE for the Intel 16-bit platform, you need the HELLOAPP source files, the 13705HAL library and its include files, and some Standard C library functions (which in this case would be supplied by the compiler as part of its run- time library). As this is a DOS .EXE application, you do not need to supply start-up code that sets up the chip selects or interrupts, etc... What if you wanted to build the application for an SH-3 target, one not running DOS?

Before you can build that application to load onto the target, you need to build a C library for the target that contains enough of the Standard C functions (like sprintf and strcpy) to let you build the application. Epson Research and Development supplies the LIBSE for this purpose, but your compiler may come with one included. You also need to build the 13705HAL library for the target. This library is the graphics chip dependent portion of the code. Finally, you need to build the final application, linked together with the libraries described earlier. The following examples assume that you have a copy of the complete source code for the S1D13705 utilities, including the nmake makefiles, as well as a copy of the GNU Compiler v2.7-96q3a for Hitachi SH3. These are available on the World Wide Web at http://www.erd.epson.com.

S1D13705	Programming Notes and Examples
X27A-G-002-03	Issue Date: 02/01/22