Is there a Kinetis ID register?

alipoth — Thu, 21 Nov 2013 22:03:57 GMT

How can the CPU model be identified? I found a generic ARM core identification register here: ARM Information Center

Is there a Freescale-specific ID somewhere, which identifies the particular Kinetis model, maskset, etc.?

Re: Is there a Kinetis ID register?

Paul_Tian — Fri, 22 Nov 2013 00:46:45 GMT

Hi, Andras

There is a register in Kinetis for chip identification, called SIM_SDID.

Hope my reply can help you.

Best Regards

Paul

bobpaddock — Fri, 22 Nov 2013 15:19:09 GMT

Incomplete snipped of code I use in my bootloader, that shows the registers that tell something about the part:

data_u32 = (RCM_SRS0 << 24UL);	/* System Reset Status Register 0 */
data_u32 \|= (RCM_SRS1 << 16UL);	/* System Reset Status Register 1 */

sys_id_adr_u32[ SYS_DEV_ID_RESET ] = data_u32;

sys_id_adr_u32[ SYS_DEV_ID_SDID ] = SIM_SDID; /* System Device Identification Register */

sys_id_adr_u32[ SYS_DEV_ID_FCFG1 ] = SIM_FCFG1; /* Flash Configuration Register 1 */

sys_id_adr_u32[ SYS_DEV_ID_FCFG2 ] = SIM_FCFG2; /* Flash Configuration Register 2 */

sys_id_adr_u32[ SYS_DEV_ID_UIDHM ] = SIM_UIDMH; /* Unique Identification Register Mid-High */

sys_id_adr_u32[ SYS_DEV_ID_UIDML ] = SIM_UIDML; /* Unique Identification Register Mid Low */

sys_id_adr_u32[ SYS_DEV_ID_UIDL ] = SIM_UIDL; /* Unique Identification Register Low

sys_id_adr_u32[ SYS_DEV_ID_COMPC ] = SIM_COPC; /* COP Control Register */

....

/* 00000002 */

hex32( ((sys_id_u32[ SYS_DEV_ID_SDID ] & SIM_SDID_FAMID(0x07U)) >> SIM_SDID_FAMID_SHIFT) ); /* Kinetis family */