topic Re: IEEE 1588 TimeStamp in Kinetis Microcontrollers

IEEE 1588 TimeStamp

christophegraul — Mon, 01 Oct 2012 12:06:35 GMT

Hi,

is there anyone that wrote some code about initializing a K60 to have Ethernet frames timestamping ?

I do have an issue with the TimeStamp exceeding 10^9 ns which is not conform to the specs.

Any clues would be appreciated.

Christophe

PaoloRenzo — Thu, 04 Oct 2012 17:39:47 GMT

Hope this helps:

SIM_SOPT2 &= ~SIM_SOPT2_TIMESRC(3);//clear

SIM_SOPT2 |= SIM_SOPT2_TIMESRC(1); //PLL clk

// Program INC and Period Regiser

ENET_ATPER /*(mac_sel)*/ = 0x3B9ACA00; //10^9

//Using PLL/FLL clock

ENET_ATINC/*(0)*/ = ENET_ATINC_INC(10) | ENET_ATINC_INC_CORR(10);//100MHz

// Enable Timer

ENET_ATCR/*(mac_sel)*/ = ENET_ATCR_EN_MASK;

Do not forget to set into Enhanced Buffer Mode (not legacy)!

christophegraul — Fri, 05 Oct 2012 07:21:25 GMT

Hi Paolo,

yes it helped thank you. Your code and correction of some mistakes I did solved the issue. Thank you

igorshakirov — Tue, 17 Sep 2013 18:58:02 GMT

Thank you.