LPC MicrocontrollersのトピックRe: Distinguish 55S66 vs 55S69 at run time

Distinguish 55S66 vs 55S69 at run time

mditto1 — Mon, 24 Aug 2020 21:59:53 GMT

Is there a register (or SDK API) I can use to distinguish LPC55S66 from '69 at run time? I'm thinking some bits in SYSCON->DEVICE_ID0 or something like that.

Re: Distinguish 55S66 vs 55S69 at run time

ZhangJennie — Tue, 25 Aug 2020 06:14:03 GMT

Hi Mike,

No, LPC55 doesn't have register for device id. LPC55 FFR area includes 128-bit unique device serial number for identification (UUID), user can read it out by iap command. But it doesn't include device part number.

Have a great day,
Jun Zhang

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Re: Distinguish 55S66 vs 55S69 at run time

mditto1 — Thu, 10 Sep 2020 19:48:35 GMT

I found a solution. The flash API FLASH_GetProperty gives different values for kFLASH_PropertyPflashTotalSize.

0x40000 for LPC55S66, 0x9DE00 for LPC55S69.

Re: Distinguish 55S66 vs 55S69 at run time

alj — Sat, 07 Nov 2020 08:47:52 GMT

Jun

Is this really true? The SYSCON block has the DEVICE_ID0 register which, according to the header file, includes the field:

PARTCONFIG
SRAM_SIZE
FLASH_SIZE
ROM_REV_MINOR
MODELNUM_EXTENTION

Further to this what do these fields actually _mean_: the user manual (UM11126) shows no information.