main.asm

此程序为DP256的SPI实验程序,已经通过实验证明

;**************************************************************
;* This stationery is meant to serve as the framework for a   *
;* user application. For a more comprehensive program that    *
;* demonstrates the more advanced functionality of this       *
;* processor, please see the demonstration applications       *
;* located in the examples subdirectory of the                *
;* Metrowerks Codewarrior for the HC08 Program directory      *
;**************************************************************

; export symbols
            XDEF asm_main
            ; we use export 'Entry' as symbol. This allows us to
            ; reference 'Entry' either in the linker .prm file
            ; or from C/C++ later on
                       
; include derivative specific macros
            Include 'gz16_registers.inc'

; variable/data section
MY_ZEROPAGE: SECTION  SHORT
; Insert here your data definition. For demonstration, temp_byte is used.
temp_byte ds.b 1

; code section
MyCode:     SECTION
; this assembly routine is called the C/C++ application
asm_main:
            CLI               ; enable interrupts
            MOV #1,temp_byte  ; just some demonstration code
            NOP               ; Insert here you own code
            RTS               ; return to caller