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			186 lines
		
	
	
		
			6.0 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			186 lines
		
	
	
		
			6.0 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| import { ROM } from "./rom.js";
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| export class ESP32ROM extends ROM {
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|     constructor() {
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|         super(...arguments);
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|         this.CHIP_NAME = "ESP32";
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|         this.IMAGE_CHIP_ID = 0;
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|         this.EFUSE_RD_REG_BASE = 0x3ff5a000;
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|         this.DR_REG_SYSCON_BASE = 0x3ff66000;
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|         this.UART_CLKDIV_REG = 0x3ff40014;
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|         this.UART_CLKDIV_MASK = 0xfffff;
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|         this.UART_DATE_REG_ADDR = 0x60000078;
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|         this.XTAL_CLK_DIVIDER = 1;
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|         this.FLASH_SIZES = {
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|             "1MB": 0x00,
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|             "2MB": 0x10,
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|             "4MB": 0x20,
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|             "8MB": 0x30,
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|             "16MB": 0x40,
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|         };
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|         this.FLASH_WRITE_SIZE = 0x400;
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|         this.BOOTLOADER_FLASH_OFFSET = 0x1000;
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|         this.SPI_REG_BASE = 0x3ff42000;
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|         this.SPI_USR_OFFS = 0x1c;
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|         this.SPI_USR1_OFFS = 0x20;
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|         this.SPI_USR2_OFFS = 0x24;
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|         this.SPI_W0_OFFS = 0x80;
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|         this.SPI_MOSI_DLEN_OFFS = 0x28;
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|         this.SPI_MISO_DLEN_OFFS = 0x2c;
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|     }
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|     async readEfuse(loader, offset) {
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|         const addr = this.EFUSE_RD_REG_BASE + 4 * offset;
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|         loader.debug("Read efuse " + addr);
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|         return await loader.readReg(addr);
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|     }
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|     async getPkgVersion(loader) {
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|         const word3 = await this.readEfuse(loader, 3);
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|         let pkgVersion = (word3 >> 9) & 0x07;
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|         pkgVersion += ((word3 >> 2) & 0x1) << 3;
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|         return pkgVersion;
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|     }
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|     async getChipRevision(loader) {
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|         const word3 = await this.readEfuse(loader, 3);
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|         const word5 = await this.readEfuse(loader, 5);
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|         const apbCtlDate = await loader.readReg(this.DR_REG_SYSCON_BASE + 0x7c);
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|         const revBit0 = (word3 >> 15) & 0x1;
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|         const revBit1 = (word5 >> 20) & 0x1;
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|         const revBit2 = (apbCtlDate >> 31) & 0x1;
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|         if (revBit0 != 0) {
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|             if (revBit1 != 0) {
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|                 if (revBit2 != 0) {
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|                     return 3;
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|                 }
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|                 else {
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|                     return 2;
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|                 }
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|             }
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|             else {
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|                 return 1;
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|             }
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|         }
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|         return 0;
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|     }
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|     async getChipDescription(loader) {
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|         const chipDesc = [
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|             "ESP32-D0WDQ6",
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|             "ESP32-D0WD",
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|             "ESP32-D2WD",
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|             "",
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|             "ESP32-U4WDH",
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|             "ESP32-PICO-D4",
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|             "ESP32-PICO-V3-02",
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|         ];
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|         let chipName = "";
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|         const pkgVersion = await this.getPkgVersion(loader);
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|         const chipRevision = await this.getChipRevision(loader);
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|         const rev3 = chipRevision == 3;
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|         const single_core = (await this.readEfuse(loader, 3)) & (1 << 0);
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|         if (single_core != 0) {
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|             chipDesc[0] = "ESP32-S0WDQ6";
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|             chipDesc[1] = "ESP32-S0WD";
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|         }
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|         if (rev3) {
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|             chipDesc[5] = "ESP32-PICO-V3";
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|         }
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|         if (pkgVersion >= 0 && pkgVersion <= 6) {
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|             chipName = chipDesc[pkgVersion];
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|         }
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|         else {
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|             chipName = "Unknown ESP32";
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|         }
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|         if (rev3 && (pkgVersion === 0 || pkgVersion === 1)) {
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|             chipName += "-V3";
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|         }
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|         return chipName + " (revision " + chipRevision + ")";
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|     }
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|     async getChipFeatures(loader) {
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|         const features = ["Wi-Fi"];
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|         const word3 = await this.readEfuse(loader, 3);
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|         const chipVerDisBt = word3 & (1 << 1);
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|         if (chipVerDisBt === 0) {
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|             features.push(" BT");
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|         }
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|         const chipVerDisAppCpu = word3 & (1 << 0);
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|         if (chipVerDisAppCpu !== 0) {
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|             features.push(" Single Core");
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|         }
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|         else {
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|             features.push(" Dual Core");
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|         }
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|         const chipCpuFreqRated = word3 & (1 << 13);
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|         if (chipCpuFreqRated !== 0) {
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|             const chipCpuFreqLow = word3 & (1 << 12);
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|             if (chipCpuFreqLow !== 0) {
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|                 features.push(" 160MHz");
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|             }
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|             else {
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|                 features.push(" 240MHz");
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|             }
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|         }
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|         const pkgVersion = await this.getPkgVersion(loader);
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|         if ([2, 4, 5, 6].indexOf(pkgVersion) !== -1) {
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|             features.push(" Embedded Flash");
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|         }
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|         if (pkgVersion === 6) {
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|             features.push(" Embedded PSRAM");
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|         }
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|         const word4 = await this.readEfuse(loader, 4);
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|         const adcVref = (word4 >> 8) & 0x1f;
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|         if (adcVref !== 0) {
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|             features.push(" VRef calibration in efuse");
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|         }
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|         const blk3PartRes = (word3 >> 14) & 0x1;
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|         if (blk3PartRes !== 0) {
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|             features.push(" BLK3 partially reserved");
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|         }
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|         const word6 = await this.readEfuse(loader, 6);
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|         const codingScheme = word6 & 0x3;
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|         const codingSchemeArr = ["None", "3/4", "Repeat (UNSUPPORTED)", "Invalid"];
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|         features.push(" Coding Scheme " + codingSchemeArr[codingScheme]);
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|         return features;
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|     }
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|     async getCrystalFreq(loader) {
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|         const uartDiv = (await loader.readReg(this.UART_CLKDIV_REG)) & this.UART_CLKDIV_MASK;
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|         const etsXtal = (loader.transport.baudrate * uartDiv) / 1000000 / this.XTAL_CLK_DIVIDER;
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|         let normXtal;
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|         if (etsXtal > 33) {
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|             normXtal = 40;
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|         }
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|         else {
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|             normXtal = 26;
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|         }
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|         if (Math.abs(normXtal - etsXtal) > 1) {
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|             loader.info("WARNING: Unsupported crystal in use");
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|         }
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|         return normXtal;
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|     }
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|     _d2h(d) {
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|         const h = (+d).toString(16);
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|         return h.length === 1 ? "0" + h : h;
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|     }
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|     async readMac(loader) {
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|         let mac0 = await this.readEfuse(loader, 1);
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|         mac0 = mac0 >>> 0;
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|         let mac1 = await this.readEfuse(loader, 2);
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|         mac1 = mac1 >>> 0;
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|         const mac = new Uint8Array(6);
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|         mac[0] = (mac1 >> 8) & 0xff;
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|         mac[1] = mac1 & 0xff;
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|         mac[2] = (mac0 >> 24) & 0xff;
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|         mac[3] = (mac0 >> 16) & 0xff;
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|         mac[4] = (mac0 >> 8) & 0xff;
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|         mac[5] = mac0 & 0xff;
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|         return (this._d2h(mac[0]) +
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|             ":" +
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|             this._d2h(mac[1]) +
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|             ":" +
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|             this._d2h(mac[2]) +
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|             ":" +
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|             this._d2h(mac[3]) +
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|             ":" +
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|             this._d2h(mac[4]) +
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|             ":" +
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|             this._d2h(mac[5]));
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|     }
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| }
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