Texas Instruments MSP50C614 manual Nop ret Dummy interrupt routines

Implementation Details

nop ret

;****************************************************************

;Dummy interrupt routines ;****************************************************************

DAC_ISR TIMER2_ISR TIMER1_ISR PORTD2_ISR PORTD3_ISR PORTF_ISR PORTD4_ISR PORTD5_ISR DUMMY_ISR

nop

INTE iret

Here is a sample C±± file that accesses the routines. #ifdef DOC_FILE #*******************************************************************************

#File:	main.cmm
#
#Version:	Release 1.00	25 MAY 99
#

#Description: Main routine for 614 lock demo

#Demonstrates use of assembly routines with C±±

#Utilizes the microswitches and LED's on a Speech

#Code Development Unit. Waits for user input on the switches.

#The correct sequence is MS7, MS9, MS7, MS10. If the correct

#sequence is detected then all LED's will light for 5 seconds.

#As soon as an incorrect sequence or portion of the sequence is

#detected the LED's will flash and the procedure will repeat.

#Due to the indication of an incorrect sequence partway through,

#there are only 4! combinations needed to find a sequence of length

4.

#The difficulty of determining the code could be increased greatly

by

#using multiple key combinations (MS7 and MS8 simultaneously for ex-

ample )

#or by only indicating an incorrect code after the sequence is com-

plete.

#Revisions:

#Copyright:	(c)	Copyright 1999 Texas Instruments, Inc.
#	All	Rights Reserved

#*******************************************************************************

#endif

#include ºram\ram.hº
cmm_func	asminit();
cmm_func	wait(int x)	; // wait function ( x is ms)
cmm_func	oport(int x, int y) ; // output to a port
cmm_func	cport(int x, int y) ; // configure a port

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