ip2716编程代码

IP2716的编程代码可以使用各种编程语言进行编写，例如C语言、Python等。以下是一个使用Python编写的IP2716编程代码示例：

import time
import RPi.GPIO as GPIO

# 设置GPIO口
GPIO.setmode(GPIO.BOARD)
GPIO.setup(11, GPIO.OUT) # Vpp
GPIO.setup(13, GPIO.OUT) # Vcc
GPIO.setup(15, GPIO.OUT) # GND
GPIO.setup(16, GPIO.OUT) # OE
GPIO.setup(18, GPIO.OUT) # WE
GPIO.setup(22, GPIO.OUT) # A0
GPIO.setup(24, GPIO.OUT) # A1
GPIO.setup(26, GPIO.OUT) # A2
GPIO.setup(29, GPIO.OUT) # D0
GPIO.setup(31, GPIO.OUT) # D1
GPIO.setup(33, GPIO.OUT) # D2
GPIO.setup(35, GPIO.OUT) # D3
GPIO.setup(37, GPIO.OUT) # D4
GPIO.setup(32, GPIO.OUT) # D5
GPIO.setup(36, GPIO.OUT) # D6
GPIO.setup(38, GPIO.OUT) # D7

# 函数：将一个字节写入芯片中
def write_byte(byte):
    GPIO.output(16, GPIO.HIGH) # OE = 1，输出关闭
    GPIO.output(18, GPIO.LOW) # WE = 0，写使能
    GPIO.output(29, byte & 0x01)
    GPIO.output(31, byte & 0x02)
    GPIO.output(33, byte & 0x04)
    GPIO.output(35, byte & 0x08)
    GPIO.output(37, byte & 0x10)
    GPIO.output(32, byte & 0x20)
    GPIO.output(36, byte & 0x40)
    GPIO.output(38, byte & 0x80)
    GPIO.output(18, GPIO.HIGH) # WE = 1，写禁止
    time.sleep(0.001)

# 函数：将一个地址写入芯片中
def write_address(address):
    GPIO.output(22, address & 0x01)
    GPIO.output(24, address & 0x02)
    GPIO.output(26, address & 0x04)

# 函数：将一段数据写入芯片中
def write_data(data):
    for i in range(len(data)):
        write_address(i)
        write_byte(data[i])

# 函数：将一段数据从芯片中读出
def read_data(length):
    data = []
    GPIO.output(16, GPIO.HIGH) # OE = 1，输出关闭
    for i in range(length):
        write_address(i)
        GPIO.output(16, GPIO.LOW) # OE = 0，输出使能
        byte = GPIO.input(29) | (GPIO.input(31) << 1) | (GPIO.input(33) << 2) | (GPIO.input(35) << 3) | (GPIO.input(37) << 4) | (GPIO.input(32) << 5) | (GPIO.input(36) << 6) | (GPIO.input(38) << 7)
        data.append(byte)
        GPIO.output(16, GPIO.HIGH) # OE = 1，输出关闭
    return data

# 函数：将芯片中原有的数据擦除
def erase_chip():
    GPIO.output(11, GPIO.HIGH) # Vpp = 12V，使能编程
    GPIO.output(13, GPIO.HIGH) # Vcc = 5V，供电
    GPIO.output(15, GPIO.LOW) # GND = 0V，接地
    GPIO.output(16, GPIO.HIGH) # OE = 1，输出关闭
    GPIO.output(18, GPIO.HIGH) # WE = 1，写禁止
    for i in range(2048):
        write_address(i)
        write_byte(0xFF) # 全部写入0xFF
    GPIO.output(11, GPIO.LOW) # Vpp = 0V，禁止编程

# 测试代码
erase_chip() # 擦除芯片
data = [0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF]
write_data(data) # 写入数据
read_data = read_data(len(data)) # 读出数据
print(read_data) # 输出读出的数据
GPIO.cleanup() # 清理GPIO口

以上代码仅供参考，具体的编程方式需要根据实际情况进行调整。另外，需要注意的是IP2716是一款EEPROM芯片，写入数据后需要进行写入保护，以免数据被意外修改。