Generated through the single-chip 40kHz pulse, driven ultrasonic probe fired, receiving the first receive signal, after finishing, we can determine the distance from obstacles

ultrasonic_long
...............\DataOS_A.asm
...............\Debug
...............\Device.env
...............\hardware.asm
...............\hardware.h
...............\hardware.inc
...............\IRQ.c
...............\isr.asm
...............\key.asm
...............\main.c
...............\Makefile
...............\Passpoint_Register.txt
...............\Passpoint_Result.txt
...............\Resource.asm
...............\Resource.inc
...............\S480.h
...............\s480.inc
...............\sacmv26e.lib
...............\SPCE061A.h
...............\SPCE061A.inc
...............\Speech.c
...............\ultrasonic_App.c
...............\ultrasonic_App.h
...............\ultrasonic_long.env
...............\ultrasonic_long.h
...............\ultrasonic_long.lik
...............\ultrasonic_long.opt
...............\ultrasonic_long.rc
...............\ultrasonic_long.set
...............\ultrasonic_long.spj
...............\voice
...............\.....\0.72k
...............\.....\1.72k
...............\.....\2.72k
...............\.....\3.72k
...............\.....\4.72k
...............\.....\5.72k
...............\.....\6.72k
...............\.....\7.72k
...............\.....\8.72k
...............\.....\9.72k
...............\.....\BEGIN.72k
...............\.....\CHECK.72k
...............\.....\DOT.72k
...............\.....\ERROR.72k
...............\.....\ERRORS.72k
...............\.....\M.72k
...............\.....\MEASURE.72k
...............\.....\PUSH.72k
...............\.....\RESULT.72k

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