yoann le jeune

MPC5748G  :1588 Timer interrupt

Discussion created by yoann le jeune on Nov 8, 2016
Latest reply on Nov 22, 2016 by yoann le jeune

Hi everybody.

I’m encountering an issue with the ENET controller on a MPC5748G target. Especialy with the 1588 part.

The ENET is, at this time, pretty right configurated. Today i’m able to receive frame on it. Each time a frame is received an interrupt is rised and a routine is called. That is working.

Now i would like to have an interrupt at each 1588 period (1s). Hereafter i’m listing registers i configure to do that :

ATCR=0x00000011 (PEREN=1 ; EN=1)

ATPER=0x3B9ACA00 (1second)

ATINC=0x00003D3D (60ns period (~16.666MHz))


EIR[TS_TIMER]=1 (to clear the interrupt)

With the debugger, i can see the EIR[TS_TIMER] set to 1 each time i clear it by writing a one. But when i run the program, no external interrupt is detected by the core and my routine is never called.

Did i miss configuring something to have this interrupt ?