34 lines
810 B
C++
34 lines
810 B
C++
#include "Utils.h"
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#include <Esp.h>
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uint32_t Utils::getChipId()
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{
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uint32_t chipId = 0;
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for (int i = 0; i < 17; i += 8) {
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chipId |= ((ESP.getEfuseMac() >> (40 - i)) & 0xff) << i;
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}
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return chipId;
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}
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uint64_t Utils::generateDtuSerial()
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{
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uint32_t chipId = getChipId();
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uint64_t dtuId = 0;
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// Product category (char 1-4): 1 = Micro Inverter, 999 = Dummy
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dtuId |= 0x199900000000;
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// Year of production (char 5): 1 equals 2015 so hard code 8 = 2022
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dtuId |= 0x80000000;
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// Week of production (char 6-7): Range is 1-52 s hard code 1 = week 1
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dtuId |= 0x0100000;
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// Running Number (char 8-12): Derived from the ESP chip id
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for (uint8_t i = 0; i < 5; i++) {
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dtuId |= (chipId % 10) << (i * 4);
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chipId /= 10;
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}
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return dtuId;
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} |