From c42e8965b003a6c80e00b261e90a43843a30e009 Mon Sep 17 00:00:00 2001
From: leo <leo@azuminha.com>
Date: Sun, 29 Oct 2023 16:21:08 -0300
Subject: inicio

---
 main.asm | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 main.asm

(limited to 'main.asm')

diff --git a/main.asm b/main.asm
new file mode 100644
index 0000000..2d97791
--- /dev/null
+++ b/main.asm
@@ -0,0 +1,42 @@
+#include <p16f873.inc>
+	__CONFIG _XT_OSC & _WDT_OFF & _PWRTE_ON & _BOREN_OFF & _LVP_OFF & _CP_OFF & _CPD_OFF
+cblock 0x20 ;definir variaveis
+	led2
+endc
+	org 0x0
+	errorlevel  -302 ;desabilitar mensagens de avisos na compilacao
+	goto INICIO:
+;;;;;;;;INICIO DO TIMER;;;;;;;;;;;;;;;;
+	org 0x004 
+	
+	retfie
+INICIO:
+	; RB0 -> echo
+	; RB1 -> trigger
+	banksel TRISB
+	movlw b'00000010' ; rb0 = input(recebe) / rb1 = output(manda)
+	movwf TRISB
+	;; echo e trigger arrumados
+
+	;;ATIVAR O TRIGGER;;;
+	banksel PORTB
+	bsf PORTB, RB1 ; ligou o trigger
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop ;; 11 us 
+	bcf PORTB, RB1 ;; desliga o trigger
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+	
+	loop $
+
+	end	
+
+
-- 
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