LPC MicrocontrollersのトピックUnique ID of LPC4357

Unique ID of LPC4357

hdhedhu — Fri, 17 Apr 2020 06:40:16 GMT

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.

Re: Unique ID of LPC4357

bernhardfink — Fri, 17 Apr 2020 08:19:10 GMT

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.

Re: Unique ID of LPC4357

hdhedhu — Sat, 18 Apr 2020 07:31:56 GMT

Thanks, Bernhard Fink

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