Title:
Ultrasonic-display-LCD1602
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- Category:
- SCM
- Tags:
-
[C/C++]
[源码]
- File Size:
- 37kb
- Update:
- 2012-11-26
- Downloads:
- 0 Times
- Uploaded by:
- Poter
Description: The debugging requirements: 1.MCU: AT89S52 chip AT89C52 2. Crystal: 12MHz debugging Note: the program without the temperature compensation 1.LCD1602 LCD display access ultrasonic module. Note ultrasonic module power supply polarity. Unclear please refer to the a good Taobao circuit diagram 3. Chosen frequency 12MHz crystal oscillator with a different frequency crystal, the microcontroller timer measurement values with the issue 40KHz frequency pulse is not right. Users often mistakenly issued 20KHZ pulse when 40KHZ pulse. (40KHz frequency pulse, cycle 25us, a duty cycle of 50 = 12.5us), 5. Tune with development board ultrasonic module, please check the development board circuit with the the ultrasonic module control pin multiplexing, Ruofu by jumper division developed the circuit board. 6 If you are using a wildcard board, to determine whether the microcontroller reset circuit and crystal oscillator circuit, microcontroller 31 feet (EA) remember to connect the high level
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File list (Check if you may need any files):
禬羘猧陪ボLCD1602\chengxu.c
.................\chengxu.LST
.................\chengxu.OBJ
.................\禬羘猧陪ボLCD1602
.................\禬羘猧陪ボLCD1602.hex
.................\禬羘猧陪ボLCD1602.lnp
.................\禬羘猧陪ボLCD1602.M51
.................\禬羘猧陪ボLCD1602.plg
.................\禬羘猧陪ボLCD1602.uvgui.admin
.................\禬羘猧陪ボLCD1602.uvopt
.................\禬羘猧陪ボLCD1602.uvproj
.................\禬羘猧陪ボLCD1602_uvproj.bak
