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+--[[
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+@module rc522
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+@summary rc522 非接触式读写卡驱动
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+@version 1.0
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+@date 2022.06.14
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+@author Dozingfiretruck
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+@usage
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+--注意:因使用了sys.wait()所有api需要在协程中使用
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+-- 用法实例
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+local rc522 = require "rc522"
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+sys.taskInit(function()
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+ spi_rc522 = spi.setup(0,nil,0,0,8,10*1000*1000,spi.MSB,1,1)
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+ rc522.init(0,pin.PB04,pin.PB01)
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+ wdata = {0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}
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+ while 1 do
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+ rc522.write_datablock(8,wdata)
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+ for i=0,63 do
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+ local a,b = rc522.read_datablock(i)
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+ if a then
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+ print("read",i,b:toHex())
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+ end
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+ end
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+ sys.wait(500)
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+ end
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+end)
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+]]
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+
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+
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+local rc522 = {}
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+
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+local sys = require "sys"
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+
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+local rc522_spi,rc522_rst,rc522_irq,rc522_cs
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+
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+---器件所用地址
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+local rc522_idle = 0x00 --取消当前命令
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+local rc522_authent = 0x0E --验证密钥
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+local rc522_receive = 0x08 --接收数据
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+local rc522_transmit = 0x04 --发送数据
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+local rc522_transceive = 0x0C --发送并接收数据
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+local rc522_resetphase = 0x0F --复位
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+local rc522_calccrc = 0x03 --CRC计算
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+
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+--Mifare_One卡片命令字
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+rc522.reqidl = 0x26 --寻天线区内未进入休眠状态
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+rc522.reqall = 0x52 --寻天线区内全部卡
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+local rc522_anticoll1 = 0x93 --防冲撞
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+local rc522_anticoll2 = 0x95 --防冲撞
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+local rc522_authent1a = 0x60 --验证A密钥
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+local rc522_authent1b = 0x61 --验证B密钥
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+local rc522_read = 0x30 --读块
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+local rc522_write = 0xA0 --写块
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+local rc522_decrement = 0xC0 --扣款
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+local rc522_increment = 0xC1 --充值
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+local rc522_restore = 0xC2 --调块数据到缓冲区
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+local rc522_transfer = 0xB0 --保存缓冲区中数据
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+local rc522_halt = 0x50 --休眠
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+
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+--MF522寄存器定义
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+-- PAGE 0
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+local rc522_rfu00 = 0x00 --保留为将来之用
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+local rc522_com_mand = 0x01 --启动和停止命令的执行
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+local rc522_com_ie = 0x02 --中断请求传递的使能和禁能控制位
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+local rc522_divl_en = 0x03 --中断请求传递的使能和禁能控制位
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+local rc522_com_irq = 0x04 --包含中断请求标志
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+local rc522_div_irq = 0x05 --包含中断请求标志
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+local rc522_error = 0x06 --错误标志，指示执行的上个命令的错误状态
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+local rc522_status1 = 0x07 --包含通信的状态标志
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+local rc522_status2 = 0x08 --包含接收器和发送器的状态标志
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+local rc522_fifo_data = 0x09 --64 字节 FIFO 缓冲区的输入和输出
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+local rc522_fifo_level = 0x0A --指示 FIFO 中存储的字节数
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+local rc522_water_level = 0x0B --定义 FIFO 下溢和上溢报警的 FIFO 深度
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+local rc522_control = 0x0C --不同的控制寄存器
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+local rc522_bit_framing = 0x0D --面向位的帧的调节
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+local rc522_coll = 0x0E --RF 接口上检测到的第一个位冲突的位的位置
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+local rc522_rfu0f = 0x0F --保留为将来之用
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+-- PAGE 1
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+local RFU10 = 0x10 --保留为将来之用
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+local rc522_mode = 0x11 --定义发送和接收的常用模式
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+local rc522_tx_mode = 0x12 --定义发送过程的数据传输速率
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+local rc522_rx_mode = 0x13 --定义接收过程中的数据传输速率
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+local rc522_tx_control = 0x14 --控制天线驱动器管脚 TX1 和 TX2 的逻辑特性
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+local rc522_tx_ayto = 0x15 --控制天线驱动器的设置
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+local rc522_tx_sel = 0x16 --选择天线驱动器的内部源
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+local rc522_rx_sel = 0x17 --选择内部的接收器设置
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+local rc522_rx_threshold = 0x18 --选择位译码器的阈值
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+local rc522_demod = 0x19 --定义解调器的设置
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+local rc522_rfu1a = 0x1A --保留为将来之用
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+local rc522_rfu1b = 0x1B --保留为将来之用
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+local rc522_mifare = 0x1C --控制 ISO 14443/MIFARE 模式中 106kbit/s 的通信
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+local rc522_rfu1d = 0x1D --保留为将来之用
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+local rc522_rfu1e = 0x1E --保留为将来之用
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+local rc522_serial_speed = 0x1F --选择串行 UART 接口的速率
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+-- PAGE 2
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+local rc522_rfu20 = 0x20 --保留为将来之用
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+local rc522_crcresult_m = 0x21 --显示 CRC 计算的实际 MSB 值
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+local rc522_crcresult_l = 0x22 --显示 CRC 计算的实际 LSB 值
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+local rc522_rfu23 = 0x23 --保留为将来之用
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+local rc522_mod_width = 0x24 --控制 ModWidth 的设置
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+local rc522_rfu25 = 0x25 --保留为将来之用
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+local rc522_rfcfg = 0x26 --配置接收器增益
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+local rc522_gsn = 0x27 --选择天线驱动器管脚 TX1 和 TX2 的调制电导
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+local rc522_cwgscfg = 0x28 --选择天线驱动器管脚 TX1 和 TX2 的调制电导
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+local rc522_modgscfg = 0x29 --选择天线驱动器管脚 TX1 和 TX2 的调制电导
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+local rc522_tmode = 0x2A --定义内部定时器的设置
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+local rc522_tprescaler = 0x2B --定义内部定时器的设置
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+local rc522_tpreload_h = 0x2C --描述 16 位长的定时器重装值
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+local rc522_tpreload_l = 0x2D --描述 16 位长的定时器重装值
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+local rc522_tcounter_value_h = 0x2E --描述 16 位长的定时器重装值
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+local rc522_tcounter_value_l = 0x2F --描述 16 位长的定时器重装值
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+-- PAGE 3
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+local rc522_rfu30 = 0x30 --保留为将来之用
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+local rc522_testsel1 = 0x31 --常用测试信号的配置
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+local rc522_testsel2 = 0x32 --常用测试信号的配置和 PRBS 控制
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+local rc522_testpin_en = 0x33 --D1-D7 输出驱动器的使能管脚（注：仅用于串行接口）
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+local rc522_testpin_value = 0x34 --定义 D1-D7 用作 I/O 总线时的值
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+local rc522_testbus = 0x35 --显示内部测试总线的状态
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+local rc522_autotest = 0x36 --控制数字自测试
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+local rc522_version = 0x37 --显示版本
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+local rc522_analogtest = 0x38 --控制管脚 AUX1 和 AUX2
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+local rc522_testadc1 = 0x39 --定义 TestDAC1 的测试值
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+local rc522_testadc2 = 0x3A --定义 TestDAC2 的测试值
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+local rc522_testadc = 0x3B --显示 ADC I 和 Q 通道的实际值
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+local rc522_rfu3c = 0x3C --保留用于产品测试
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+local rc522_rfu3d = 0x3D --保留用于产品测试
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+local rc522_rfu3e = 0x3E --保留用于产品测试
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+local rc522_rfu3f = 0x3F --保留用于产品测试
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+
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+local Key_A = string.char(0xff,0xff,0xff,0xff,0xff,0xff)
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+local Key_B = string.char(0xff,0xff,0xff,0xff,0xff,0xff)
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+
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+--[[
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+写rc522寄存器
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+@api rc522.set_bit_mask(address, value)
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+@number address 地址
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+@number value 值
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+@usage
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+write_rawrc(rc522_bit_framing,0x07)
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+]]
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+local function write_rawrc(address, value)
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+ rc522_cs(0)
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+ local data = string.char((address<<1)&0x7E) .. string.char(value)
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+ spi.send(rc522_spi, data)
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+ -- rc522_spi:send(data)
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+ rc522_cs(1)
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+end
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+
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+--[[
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+读rc522寄存器
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+@api rc522.read_rawrc(address)
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+@number address 地址
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+@return number 寄存器值
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+@usage
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+local n = read_rawrc(rc522_com_irq)
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+]]
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+local function read_rawrc(address)
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+ rc522_cs(0)
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+ local data = string.char(((address<<1)&0x7E)|0x80)
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+ spi.send(rc522_spi, data)
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+ local val = spi.recv(rc522_spi,1)
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+ -- rc522_spi:send(data)
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+ -- local val = rc522_spi:recv(1)
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+ rc522_cs(1)
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+ return string.byte(val)
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+end
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+
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+--[[
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+对rc522寄存器置位
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+@api rc522.set_bit_mask(address, mask)
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+@number address 地址
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+@number mask 置位值
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+@usage
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+rc522.set_bit_mask (rc522_fifo_level, 0x80)
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+]]
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+function rc522.set_bit_mask(address, mask)
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+ local current = read_rawrc(address)
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+ write_rawrc(address, bit.bor(current, mask))
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+end
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+
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+--[[
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+对rc522寄存器清位
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+@api rc522.clear_bit_mask(address, mask)
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+@number address 地址
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+@number mask 清位值
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+@usage
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+rc522.clear_bit_mask(rc522_com_irq, 0x80 )
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+]]
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+function rc522.clear_bit_mask(address, mask)
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+ local current = read_rawrc(address)
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+ write_rawrc(address, bit.band(current, bit.bnot(mask)))
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+end
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+
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+--[[
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+命令通讯
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+@api rc522.command(command,data)
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+@number command
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+@number data
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+@return status data len 结果,返回数据,收到的位长度
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+@usage
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+rc522.version()
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+]]
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+function rc522.command(command,data)
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+ local out_data = {}
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+ local len = 0
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+ local status = false
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+ local Irq_en = 0x00
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+ local waitfor = 0x00
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+ local last_bits,n,l
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+ if command==rc522_authent then
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+ Irq_en = 0x12;
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+ waitfor = 0x10;
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+ elseif command==rc522_transceive then
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+ Irq_en = 0x77;
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+ waitfor = 0x30;
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+ end
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+ write_rawrc(0x02, bit.bor(Irq_en, 0x80))
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+ rc522.clear_bit_mask(rc522_com_irq, 0x80 )
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+ write_rawrc (rc522_com_mand, rc522_idle)
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+ rc522.set_bit_mask (rc522_fifo_level, 0x80)
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+ for i=1,#data do
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+ write_rawrc(rc522_fifo_data, data[i])
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+ end
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+ write_rawrc(rc522_com_mand,command )
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+ if ( command == rc522_transceive )then
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+ rc522.set_bit_mask(rc522_bit_framing,0x80)
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+ end
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+ l = 12;
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+ while true do
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+ sys.wait(1)
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+ n = read_rawrc(rc522_com_irq)
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+ l = l - 1
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+ if not ((l ~= 0) and (bit.band(n, 0x01) == 0) and (bit.band(n, waitfor) == 0)) then
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+ break
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+ end
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+ end
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+ rc522.clear_bit_mask(rc522_bit_framing, 0x80 )
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+ if (l ~= 0)then
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+ if bit.band(read_rawrc(rc522_error), 0x1B) == 0x00 then
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+ status = true
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+ if bit.band(n,Irq_en,0x01)~=0then
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+ status = false
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+ end
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+ if (command == rc522_transceive )then
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+ n = read_rawrc(rc522_fifo_level)
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+ last_bits = bit.band(read_rawrc(rc522_control),0x07)
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+ if last_bits ~= 0 then
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+ len = (n - 1) * 8 + last_bits
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+ else
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+ len = n * 8
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+ end
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+ if n == 0 then
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+ n = 1
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+ end
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+ for i=1, n do
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+ out_data [ i ] = read_rawrc(rc522_fifo_data)
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+ end
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+ end
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+ end
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+ else
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+ status = false
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+ end
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+ rc522.set_bit_mask (rc522_control,0x80 )
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+ write_rawrc(rc522_com_mand,rc522_idle )
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+ return status,out_data,len
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+end
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+
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+--[[
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+防冲撞
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+@api rc522.anticoll(id)
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+@string id 卡片序列号，4字节
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+@return status uid 结果,uid
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+@usage
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+local status,uid = rc522.anticoll(array_id)
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+]]
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+function rc522.anticoll(id)
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+ local check = 0
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+ local uid
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+ rc522.clear_bit_mask(rc522_status2,0x08)
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+ write_rawrc( rc522_bit_framing, 0x00);
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+ rc522.clear_bit_mask (rc522_coll, 0x80);
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+ local status, back_data = rc522.command(rc522_transceive,{0x93,0x20})
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+ if status == true then
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+ for i=1,4 do
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+ check = bit.bxor(check,back_data[i])
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+ end
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+ if check ~= back_data[5] then
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+ status = false;
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+ end
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+ uid = string.char(table.unpack(back_data,1,4))
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+ end
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+ rc522.clear_bit_mask( rc522_coll, 0x80 )
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+ return status,uid;
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+end
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+
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+--[[
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+crc计算
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+@api calculate_crc(data)
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+@table data 数据
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+@return table crc值
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+@usage
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+local crc = calculate_crc(buff)
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+]]
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+local function calculate_crc(data)
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+ local ret_data = {}
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+ rc522.clear_bit_mask(rc522_div_irq, 0x04)
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+ write_rawrc(rc522_com_mand, rc522_idle)
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+ rc522.set_bit_mask (rc522_fifo_level,0x80 )
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+ for i=1,#data do
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+ write_rawrc(rc522_fifo_data, data[i])
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+ end
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+ write_rawrc(rc522_com_mand, rc522_calccrc)
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+ local i = 0xFF
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+ while true do
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+ local n = read_rawrc(0x05)
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+ i = i - 1
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+ if not ((i ~= 0) and not (n&0x04)) then
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+ break
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+ end
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+ end
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+ ret_data[1] = read_rawrc(0x22)
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+ ret_data[2] = read_rawrc(0x21)
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+ return ret_data
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+end
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+
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+--[[
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+验证卡片密码
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+@api authstate(mode, addr,key,uid )
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+@number mode 模式
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+@number addr 地址
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+@string key 密码
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|
|
+@string uid uid
|
|
|
+@return bool 结果
|
|
|
+@usage
|
|
|
+status = authstate(rc522_authent1b, addr,Key_B,uid )
|
|
|
+]]
|
|
|
+local function authstate( mode, addr,key,uid )
|
|
|
+ local buff = {}
|
|
|
+ buff[1] = mode
|
|
|
+ buff[2] = addr
|
|
|
+ for i=1,6 do
|
|
|
+ buff[i+2]=key:byte(i)
|
|
|
+ end
|
|
|
+ for i=1,4 do
|
|
|
+ buff[i+8]=uid:byte(i)
|
|
|
+ end
|
|
|
+ local status, back_data = rc522.command(rc522_authent,buff)
|
|
|
+ if status == true and (read_rawrc(rc522_status2)& 0x08) ~= 0 then
|
|
|
+ return true
|
|
|
+ end
|
|
|
+ return false
|
|
|
+end
|
|
|
+
|
|
|
+--[[
|
|
|
+写数据到M1卡一块
|
|
|
+@api rc522.write(addr, data)
|
|
|
+@number addr 块地址(0-63)M1卡总共有16个扇区(每个扇区有：3个数据块+1个控制块),共64个块
|
|
|
+@table data 数据
|
|
|
+@return bool 结果
|
|
|
+@usage
|
|
|
+rc522.write(addr, data)
|
|
|
+]]
|
|
|
+function rc522.write(addr, data)
|
|
|
+ local buff = {}
|
|
|
+ buff[1] = rc522_write;
|
|
|
+ buff[2] = addr;
|
|
|
+ local crc = calculate_crc(buff)
|
|
|
+ buff[3] = crc[1]
|
|
|
+ buff[4] = crc[2]
|
|
|
+ local status, back_data, back_bits = rc522.command(rc522_transceive,buff)
|
|
|
+ if status == true and back_bits == 4 and (back_data[1]& 0x0F)==0x0A then
|
|
|
+ local buf_w = {}
|
|
|
+ for i=0, 16 do
|
|
|
+ table.insert(buf_w, data[i])
|
|
|
+ end
|
|
|
+ local crc = calculate_crc(buf_w)
|
|
|
+ table.insert(buf_w, crc[1])
|
|
|
+ table.insert(buf_w, crc[2])
|
|
|
+ status, back_data, back_bits = rc522.command(rc522_transceive,buf_w)
|
|
|
+ if status == true and back_bits == 4 and (back_data[1]& 0x0F)==0x0A then
|
|
|
+ return status;
|
|
|
+ end
|
|
|
+ end
|
|
|
+ return status;
|
|
|
+end
|
|
|
+
|
|
|
+--[[
|
|
|
+写数据到M1卡一块
|
|
|
+@api rc522.read(addr)
|
|
|
+@number addr 块地址(0-63)M1卡总共有16个扇区(每个扇区有：3个数据块+1个控制块),共64个块
|
|
|
+@return bool,string 结果，数据
|
|
|
+@usage
|
|
|
+rc522.read(addr, data)
|
|
|
+]]
|
|
|
+local function read(addr)
|
|
|
+ local buff = {}
|
|
|
+ buff[1] = rc522_read;
|
|
|
+ buff[2] = addr;
|
|
|
+ local crc = calculate_crc(buff)
|
|
|
+ buff[3] = crc[1]
|
|
|
+ buff[4] = crc[2]
|
|
|
+ local status, back_data, back_bits = rc522.command(rc522_transceive,buff)
|
|
|
+ if status == true and back_bits == 0x90 then
|
|
|
+ local data = string.char(table.unpack(back_data,1,16))
|
|
|
+ return status,data
|
|
|
+ end
|
|
|
+ return false
|
|
|
+end
|
|
|
+
|
|
|
+--[[
|
|
|
+rc522 硬件版本
|
|
|
+@api rc522.version()
|
|
|
+@return number 硬件版本
|
|
|
+@usage
|
|
|
+rc522.version()
|
|
|
+]]
|
|
|
+function rc522.version()
|
|
|
+ return read_rawrc(rc522_version)
|
|
|
+end
|
|
|
+
|
|
|
+--[[
|
|
|
+rc522 命令卡片进入休眠状态
|
|
|
+@api rc522.halt()
|
|
|
+@return bool 结果
|
|
|
+@usage
|
|
|
+rc522.halt()
|
|
|
+]]
|
|
|
+function rc522.halt()
|
|
|
+ local buff = {}
|
|
|
+ buff[1] = rc522_halt;
|
|
|
+ buff[2] = 0;
|
|
|
+ local crc = calculate_crc(buff)
|
|
|
+ buff[3] = crc[1]
|
|
|
+ buff[4] = crc[2]
|
|
|
+ local status = rc522.command(rc522_transceive,buff)
|
|
|
+ return status
|
|
|
+end
|
|
|
+
|
|
|
+--[[
|
|
|
+rc522 复位
|
|
|
+@api rc522.reset()
|
|
|
+@usage
|
|
|
+rc522.reset()
|
|
|
+]]
|
|
|
+function rc522.reset()
|
|
|
+ rc522_rst(1)
|
|
|
+ rc522_rst(0)
|
|
|
+ rc522_rst(1)
|
|
|
+ write_rawrc(rc522_com_mand, 0x0f)
|
|
|
+ write_rawrc(rc522_mode, 0x3D)
|
|
|
+ write_rawrc(rc522_tpreload_l, 30)
|
|
|
+ write_rawrc(rc522_tpreload_h, 0)
|
|
|
+ write_rawrc(rc522_tmode, 0x8D)
|
|
|
+ write_rawrc(rc522_tprescaler, 0x3E)
|
|
|
+ write_rawrc(rc522_tx_ayto, 0x40)
|
|
|
+end
|
|
|
+
|
|
|
+--[[
|
|
|
+开启天线
|
|
|
+@api rc522.antenna_on()
|
|
|
+@usage
|
|
|
+rc522.antenna_on()
|
|
|
+]]
|
|
|
+function rc522.antenna_on()
|
|
|
+ local uc = read_rawrc( rc522_tx_control )
|
|
|
+ if (( uc & 0x03 )==0 ) then
|
|
|
+ rc522.set_bit_mask(rc522_tx_control, 0x03)
|
|
|
+ end
|
|
|
+end
|
|
|
+
|
|
|
+--[[
|
|
|
+关闭天线
|
|
|
+@api rc522.antenna_on()
|
|
|
+@usage
|
|
|
+rc522.antenna_on()
|
|
|
+]]
|
|
|
+function rc522.antenna_off()
|
|
|
+ rc522.clear_bit_mask( rc522_tx_control, 0x03 )
|
|
|
+end
|
|
|
+
|
|
|
+--[[
|
|
|
+设置rc522工作方式为ISO14443_A
|
|
|
+@api rc522_config_isotype()
|
|
|
+@usage
|
|
|
+rc522_config_isotype()
|
|
|
+]]
|
|
|
+local function rc522_config_isotype()
|
|
|
+ rc522.clear_bit_mask(rc522_status2, 0x08)
|
|
|
+ write_rawrc(rc522_mode, 0x3D)
|
|
|
+ write_rawrc(rc522_rx_sel, 0x86)
|
|
|
+ write_rawrc(rc522_rfcfg, 0x7F)
|
|
|
+ write_rawrc(rc522_tpreload_l, 30)
|
|
|
+ write_rawrc(rc522_tpreload_h, 0)
|
|
|
+ write_rawrc(rc522_tmode, 0x8D)
|
|
|
+ write_rawrc(rc522_tprescaler, 0x3E)
|
|
|
+ rc522.antenna_on()
|
|
|
+end
|
|
|
+
|
|
|
+--[[
|
|
|
+rc522 寻卡
|
|
|
+@api rc522.request(req_code)
|
|
|
+@number req_code rc522.reqidl 寻天线区内未进入休眠状态 rc522.reqall 寻天线区内全部卡
|
|
|
+@return bool tagtype 结果，卡类型
|
|
|
+@usage
|
|
|
+status,array_id = rc522.request(rc522.reqall)
|
|
|
+]]
|
|
|
+function rc522.request(req_code)
|
|
|
+ rc522.clear_bit_mask(rc522_status2,0x08)
|
|
|
+ write_rawrc(rc522_bit_framing,0x07)
|
|
|
+ rc522.set_bit_mask(rc522_tx_control,0x03)
|
|
|
+ local tagtype
|
|
|
+ local status, back_data, back_bits = rc522.command(rc522_transceive,{req_code})
|
|
|
+ if status == true and back_bits == 0x10 then
|
|
|
+ tagtype = string.char(table.unpack(back_data,1,2))
|
|
|
+ return status, tagtype
|
|
|
+ end
|
|
|
+ return false
|
|
|
+end
|
|
|
+
|
|
|
+--[[
|
|
|
+选定卡片
|
|
|
+@api rc522.select(id)
|
|
|
+@number id 卡片序列号，4字节
|
|
|
+@return bool 结果
|
|
|
+@usage
|
|
|
+status = rc522.select(id)
|
|
|
+]]
|
|
|
+function rc522.select(id)
|
|
|
+ local buff = {}
|
|
|
+ buff[1]=rc522_anticoll1
|
|
|
+ buff[2]=0x70
|
|
|
+ buff[7]=0
|
|
|
+ for i=1,4 do
|
|
|
+ buff[i+2]=id:byte(i)
|
|
|
+ buff[7]= bit.bxor(buff[7],id:byte(i))
|
|
|
+ end
|
|
|
+ local crc = calculate_crc(buff)
|
|
|
+ buff[8]=crc[1]
|
|
|
+ buff[9]=crc[2]
|
|
|
+ rc522.clear_bit_mask( rc522_status2, 0x08 )
|
|
|
+ local status, back_data, back_bits = rc522.command(rc522_transceive,buff)
|
|
|
+ if status == true and back_bits == 0x18 then
|
|
|
+ return true
|
|
|
+ end
|
|
|
+ return false
|
|
|
+end
|
|
|
+
|
|
|
+--[[
|
|
|
+按照rc522操作流程写入16字节数据到块
|
|
|
+@api rc522.write_datablock(addr,data)
|
|
|
+@number addr 任意块地址.M1卡总共有16个扇区(每个扇区有：3个数据块+1个控制块),共64个块
|
|
|
+@table data 指向要写入的数据,必须为16个字符
|
|
|
+@return bool 结果
|
|
|
+@usage
|
|
|
+rc522.write_datablock(addr,data)
|
|
|
+]]
|
|
|
+function rc522.write_datablock(addr,data)
|
|
|
+ if #data ~= 6 then
|
|
|
+ return false
|
|
|
+ end
|
|
|
+ local status,array_id = rc522.request(rc522.reqall)
|
|
|
+ if status ~= true then
|
|
|
+ status,array_id = rc522.request(rc522.reqall)
|
|
|
+ end
|
|
|
+ if status == true then
|
|
|
+ local status,uid = rc522.anticoll(array_id)
|
|
|
+ if status == true then
|
|
|
+ rc522.select(uid)
|
|
|
+ status = authstate( rc522_authent1b, addr,Key_B,uid )
|
|
|
+ if status == true then
|
|
|
+ status = rc522.write(addr,data)
|
|
|
+ rc522.halt()
|
|
|
+ return status
|
|
|
+ end
|
|
|
+ end
|
|
|
+ end
|
|
|
+ return false
|
|
|
+end
|
|
|
+
|
|
|
+--[[
|
|
|
+按照rc522操作流程读取块
|
|
|
+@api rc522.read_datablock(addr)
|
|
|
+@number addr 任意块地址.M1卡总共有16个扇区(每个扇区有：3个数据块+1个控制块),共64个块
|
|
|
+@return bool string 结果 数据
|
|
|
+@usage
|
|
|
+ for i=0,63 do
|
|
|
+ local a,b = rc522.read_datablock(i)
|
|
|
+ if a then
|
|
|
+ print("read",i,b:toHex())
|
|
|
+ end
|
|
|
+ end
|
|
|
+]]
|
|
|
+function rc522.read_datablock(addr)
|
|
|
+ local status,array_id = rc522.request(rc522.reqall)
|
|
|
+ if status ~= true then
|
|
|
+ status,array_id = rc522.request(rc522.reqall)
|
|
|
+ end
|
|
|
+ if status == true then
|
|
|
+ local status,uid = rc522.anticoll(array_id)
|
|
|
+ if status == true then
|
|
|
+ rc522.select(uid)
|
|
|
+ status = authstate( rc522_authent1b, addr,Key_B,uid )
|
|
|
+ if status == true then
|
|
|
+ local status,data = read(addr)
|
|
|
+ if status == true then
|
|
|
+ return true, data
|
|
|
+ end
|
|
|
+ rc522.halt()
|
|
|
+ end
|
|
|
+ end
|
|
|
+ end
|
|
|
+ return false
|
|
|
+end
|
|
|
+
|
|
|
+--[[
|
|
|
+rc522 初始化
|
|
|
+@api rc522.init(spi_id, cs, rst)
|
|
|
+@number spi_id spi端口号
|
|
|
+@number cs cs引脚
|
|
|
+@number rst rst引脚
|
|
|
+@return bool 初始化结果
|
|
|
+@usage
|
|
|
+spi_rc522 = spi.setup(0,nil,0,0,8,10*1000*1000,spi.MSB,1,1)
|
|
|
+rc522.init(0,pin.PB04,pin.PB01)
|
|
|
+]]
|
|
|
+function rc522.init(spi_id,cs,rst)
|
|
|
+ rc522_spi = spi_id
|
|
|
+ rc522_cs = gpio.setup(cs, 0, gpio.PULLUP)
|
|
|
+ rc522_cs(1)
|
|
|
+ rc522_rst = gpio.setup(rst, 0, gpio.PULLUP)
|
|
|
+ rc522_rst(1)
|
|
|
+ rc522.reset()
|
|
|
+ rc522_config_isotype()
|
|
|
+ print("rc522.version",rc522.version())
|
|
|
+ return true
|
|
|
+end
|
|
|
+
|
|
|
+function rc522.test()
|
|
|
+
|
|
|
+end
|
|
|
+
|
|
|
+return rc522
|
|
|
+
|
|
|
+
|
|
|
+
|
Dozingfiretruck