topic can the the ship unique identification of imx rt1052 be readed in app code? in i.MX RT Crossover MCUs

can the the ship unique identification of imx rt1052 be readed in app code?

1920844004 — Thu, 18 Oct 2018 06:54:57 GMT

can the the ship unique identification of imx rt1052 be readed in app code?

I know can be readed in flashloader.

I'm investigating...

Any help much appreciated.

Re: can the the ship unique identification of imx rt1052 be readed in app code?

igorpadykov — Thu, 18 Oct 2018 23:47:37 GMT

Hi zhihui

chip unique id description can be found in Table 5-9. Fusemap Descriptions

i.MX RT1050 Reference Manual and some fuse examples can be found in MCUXpresso

..devices/MIMXRT1052/drivers/fsl_dcp.c
https://www.nxp.com/docs/en/reference-manual/IMXRT1050RM.pdf

Best regards
igor
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Re: can the the ship unique identification of imx rt1052 be readed in app code?

brain00 — Sun, 20 Dec 2020 20:35:03 GMT

No.

it is not related to fusemap / dcp module.

Here is the code to read the MCU Unique Device ID:

1. Add fsl_ocotp.c / .h to your drivers folder (you can copy them from the SDK)

#include "fsl_ocotp.h"

#define OCOTP_FREQ_HZ (CLOCK_GetFreq(kCLOCK_IpgClk))

OCOTP_Init(OCOTP, OCOTP_FREQ_HZ);

// Print MCU Unique Device ID

PRINTF("OCOTP controller CFG0: 0x%08X\r\n", OCOTP->CFG0);
PRINTF("OCOTP controller CFG1: 0x%08X\r\n", OCOTP->CFG1);

That's all,

Enjoy !