📄 tmr_wdt.asm
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;/////////////////////////////////////////////////////////////////////;//// ////;//// Mini-RISC-1 ////;//// Timer / Wachdog ////;//// Tests Timer / Wachdog ////;//// ////;//// Author: Rudolf Usselmann ////;//// russelmann@hotmail.com ////;//// ////;/////////////////////////////////////////////////////////////////////;//// ////;//// Copyright (C) 2000 Rudolf Usselmann ////;//// russelmann@hotmail.com ////;//// ////;//// This source file may be used and distributed without ////;//// restriction provided that this copyright statement is not ////;//// removed from the file and that any derivative work contains ////;//// the original copyright notice and the associated disclaimer.////;//// ////;//// THIS SOURCE FILE IS PROVIDED "AS IS" AND WITHOUT ANY ////;//// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT ////;//// LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND ////;//// FITNESS FOR A PARTICULAR PURPOSE. ////;//// ////;///////////////////////////////////////////////////////////////////// list p=16c57 #include p16c5x.inc; global Registersr0 equ 0x8r1 equ 0x9r2 equ 0xar3 equ 0xbr4 equ 0xcr5 equ 0xdr6 equ 0xer7 equ 0xf; banked Registersbr0 equ 0x10br1 equ 0x11br2 equ 0x12br3 equ 0x13br4 equ 0x14br5 equ 0x15br6 equ 0x16br7 equ 0x17br8 equ 0x18br9 equ 0x19br10 equ 0x1abr11 equ 0x1bbr12 equ 0x1cbr13 equ 0x1dbr14 equ 0x1ebr15 equ 0x1f; PORTB Indicates Test Number; PORTA Indicates Status: 0 - Running; 1 - done OK; ff - stoped on errormain ; Main code entry ; Port IO Test ; All ports have a Pull up resistor ; SETUP all ports clrw movwf FSR movwf PORTA movwf PORTB movwf PORTC tris PORTA tris PORTB tris PORTC ; --------------------------------------- ; ---- Test RMW on Register fil ---- ; --------------------------------------- movlw 0x01 ; TEST 1 movwf PORTB ; Set Test Number movlw 0x00 option movwf TMR0 clrwdt nop nop nop nop clrw movwf r1loop2 ; repeat 256 times clrw movwf r0 ; repeat 256 timesloop1 movfw TMR0 decfsz r0,F goto loop1 decfsz r1,F goto loop2 nop nop nop nop nop nop clrw movwf TMR0 clrwdt nop nop nop nop movlw 0x01 movwf PORTA nop nop nop nopgood ; Loop in good on success goto good nop nop nop noplerr movlw 0xff movwf PORTA nop nop nop noplerr_loop ; Loop in lerr on failure goto lerr_loop nop nop nop nop END⌨️ 快捷键说明
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