Unique ID of LPC4357

[hdhedhu]

I want to read a unique id of LPC4357 which is 128 bit long(specified in the user manual). But I can't find the address from where I should read it. The user manual has no mention of this thing clearly apart from just telling that it has 128-bit unique id. https://www.y-ic.es/datasheet/e0/(2).pdf  This user manual states in chapter 4.4 at address  0x4004 5000 there is a unique id but using MCU expresso when I see that memory location the id is not 128 bit long. I have attached data available at the given memory address. In STM32 there is a similar unique id of 96 bits located at a flash address which once can read easily but in LPC4357 it is difficult as manual doesn't provide adequate information. Please help me in reading the unique id of the processor.

[bernhardfink · Accepted solution]

If you read carefully the description of the words in Table 14, you see that the unique ID applies only to the flashless parts, e.g. LPC4350. For parts with on-chip flash, e.g. the LPC4357 these 4 word locations are "reserved".

For the flash parts there is an IAP command to read a serial number.

Regards,

Bernhard.

[hdhedhu]

Thanks, Bernhard Fink

Using chip library inbuild function Chip_IAP_ReadUID I am able to read unique id.