zx_flk_app/common/bluetooth/ZXCar.js

const common = require('../common.js');

const FMBMS = require('./FMBMS.js');

const readServiceID = '0000FEE7-0000-1000-8000-00805F9B34FB';
const readID = '000036F6-0000-1000-8000-00805F9B34FB';
const writeServiceID = '0000FEE7-0000-1000-8000-00805F9B34FB';
const writeID = '000036F5-0000-1000-8000-00805F9B34FB';
const MTU = 115;
const app = getApp();

function acceptDevice(device) {
    return device.btid ? true : false;
}

function isSingleBt() {
    console.log('是单蓝牙');
    return true;
}

function haveBms() {
    console.log('是单蓝牙并且带bms');
    return true;
}

function isDevice(device, data) {
	// console.log(device,data,'device111');
    const advertisData = new Uint8Array(data.advertisData);
	// console.log(advertisData.slice(4, 10).toString(),'device2222');
    const mac = device.btid
        .split('')
        .map((p, i) => parseInt(p + device.btid[i + 1], 16))
        .filter((p, i) => i % 2 == 0);

    // if ( advertisData.slice(4, 10).toString() == "095A5832") {
    //     return true;
    // }
	if(data.name === "ZX2202220000000"){
		return true
	}

    return false;
}
 function alterConnect(device, deviceId) {
	 //登录 crc[0x1F,0x0F,0x5A,0x58,0x32,0x32,0x30,0x32,0x32,0x32,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x08,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x67,0xAC,0x53,0xE7,0x08,0x00]
	 //登录 [[0x22,0x22,0x01,0x1F,0x0F,0x5A,0x58,0x32,0x32,0x30,0x32,0x32,0x32,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x08,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x67,0xAC,0x53,0xE7,0x08,0x00,crc_data,0xAA,0xAA]]
	 //时间戳 0x67AC53E7  16:00:05
	 //切换正常，工厂下发指令 [[0x22,0x22,0x54,0x01,0x01,0x12,0xAA,0xAA]]
	 //OTA 升级指令 [[0x22,0x22,]]
	 
	 const data=[0x1F,0x0F,0x5A,0x58,0x32,0x32,0x30,0x32,0x32,0x32,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x08,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x67,0xAC,0x53,0xE7,0x08,0x00]
	 const crc_data=crc8Ieee8023(data)
	 console.log(crc_data,111);
	 return	[[0x22,0x22,0x01,0x1F,0x0F,0x5A,0x58,0x32,0x32,0x30,0x32,0x32,0x32,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x08,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x67,0xAC,0x53,0xE7,0x08,0x00,crc_data,0xAA,0xAA]]
  //return [sendCommand(0x01, [0xAB, 0xCD, 0xAB, 0xCD])]
}
function crc8Ieee8023(data) {
    let crc = 0x00; // 初始化CRC为0
    const polynomial = 0x07; // CRC-8 IEEE 802.3 多项式
    // 遍历数据数组中的每个字节
    for (let byte of data) {
        crc ^= byte; // 将当前字节与CRC寄存器进行异或操作
        // 对CRC寄存器的每一位进行8次迭代
        for (let i = 0; i < 8; i++) {
            if (crc & 0x80) { // 检查最高位是否为1
                crc = (crc << 1) ^ polynomial; // 左移一位并与多项式异或
            } else {
                crc <<= 1; // 仅左移一位
            }
        }
        // 截断CRC到8位（在JavaScript中这一步是多余的，因为位运算会自动处理溢出）
        crc &= 0xFF;
    }
 
    // 返回CRC校验码的最低8位，并转换为十六进制字符串
    return '0x'+ crc.toString(16).toUpperCase().padStart(2, '0'); // 使用padStart确保结果始终是两位十六进制数
}

function readData(device, value, data) {
	console.log(value,'test1111');
    var value = new Uint8Array(value);
	console.log(value,'value***************************');
	// switch (value[0]) {
	// 		case 0x01:
	// 			//登陆成功准备
	// 			switchFactory(device)
	// 			break;

	// 		case 0x42:
	// 			//data = FMBMS.BMSReply(value.slice(2, 2 + value[1]), data)
	// 			packBmsData(device, value, data);
	// 			break;
	// 	}

	return data;
}

function sendCommand(cmd, data = []) {
	const startCmd=[0x02,0x02]
	const endCmd=[0xAA,0xAA]
	data=startCmd.concat(cmd).concat(endCmd)
	return data
}

function stateUpdate(device, deviceId) {
    return [sendCommand(0x04), sendCommand(0x02, FMBMS.BMSRead())]; //return [[0x02,0x00,0x15,0x15,0x00,0x4e,0x57,0x00,0x13,0x00,0x00,0x00,0x00,0x06,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x68,0x00,0x00,0x01,0x27,0x7b]]
}

function turnOn(device, deviceId) {
    return [sendCommand(0x02, FMBMS.BMSTurnOn())];
}

function turnOff(device, deviceId) {
    return [sendCommand(0x02, FMBMS.BMSTurnOff())];
}

function switchFactory(device, deviceId) {
    return [sendCommand([0x54,0x01,0x01,0x12])];
}
function otaUpgrade(device, deviceId) {
    return [sendCommand([0x54,0x01,0x01,0x12])];
}

module.exports = {
    readServiceID: readServiceID,
    readID: readID,
    writeServiceID: writeServiceID,
    writeID: writeID,
    MTU: MTU,
    acceptDevice: acceptDevice,
    isDevice: isDevice,
    alterConnect: alterConnect,
    readData: readData,
    stateUpdate: stateUpdate,
    turnOn: turnOn,
    turnOff: turnOff,
    isSingleBt: isSingleBt,
    haveBms: haveBms,
	
};