Unique chip ID?

MikeH said:

Does anyone know if the Die Record bytes in the Device Descriptor table are unique on a per-die basis? In other words, do "Lot/Wafer ID + Die X position + Die Y position" uniquely identify a die?

Yes, they do uniquely identify a die.

Thanks Brandon.

FYI, Here's a way to create a GUID (globally unique identifier) for use in a network of similar products. It uses the Peripheral Driver Library (Driverlib) function TLV_getInfo.

#include "F5xx_F6xx_Core_Lib/HAL_TLV.h"

BYTE guid[8];

struct s_TLV_Die_Record * pDIEREC;
unsigned char bDieRecord_bytes;
TLV_getInfo(TLV_DIERECORD, 0, &bDieRecord_bytes, (unsigned int **)&pDIEREC);
for(i=0; i<8; i++) guid[i] = pDIEREC->die_record[i+2];