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Fixing Arduino Unique Identifier byte order

This commit is contained in:
Christoph Kottke 2020-11-28 16:01:41 +01:00
parent 4f3aa8b7e1
commit ff39a9031b
1 changed files with 6 additions and 1 deletions
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7
IODue.cpp
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@ -306,7 +306,12 @@ void CIO::getUDID(uint8_t* buffer)
status = EFC1->EEFC_FSR;
} while ( (status & EEFC_FSR_FRDY) == EEFC_FSR_FRDY );
::memcpy(buffer, (void *)IFLASH1_ADDR, 16U);
for (uint8_t i = 0; i < 16; i+=4) {
buffer[i + 0] = *(uint32_t *)(IFLASH1_ADDR + i) >> 24;
buffer[i + 1] = *(uint32_t *)(IFLASH1_ADDR + i) >> 16;
buffer[i + 2] = *(uint32_t *)(IFLASH1_ADDR + i) >> 8;
buffer[i + 3] = *(uint32_t *)(IFLASH1_ADDR + i) >> 0;
}
EFC1->EEFC_FCR = (0x5A << 24) | EFC_FCMD_SPUI;
do {