/stm32h7_atsame70_ptpd

IEEE 1588 PTP daemon for STM32H7 and ATSAME70

Primary LanguageC

PTPD FOR STM32H7 AND ATSAME70

IEEE 1588 PTP daemon for STM32H7 and ATSAME70 microcontrollers. The software is tested to work with LWIP 2.x.

Usage

  1. Enable IGMP in LWIP and make sure it is working. Typically this is done by defining LWIP_IGMP to 1 in lwipopts.h. You typically need to enable IGMP in your network interface as well (for example netif->flags |= NETIF_FLAG_IGMP).
  2. Copy-paste the ptp folder to your solution.
  3. From port folder copy constants_dep.h, ptpd_dep.c and ptpd_dep.h files to the ptp/dep folder. From port folder copy constants.h to ptp folder.
  4. Every 1 ms update the PTPD timers, for example as below 
    // ptpd timers
for (uint8_t i=0; i < TIMER_ARRAY_SIZE; i++)
{
    switch (ptpdTimersCounter[i])
    {
        case 0:
        break;
        case 1:
        ptpdTimersExpired[i] = TRUE;
        ptpdTimersCounter[i] = ptpdTimers[i];
        break;
        default :
        ptpdTimersCounter[i]--;
        break;
    }
}
  5. In the software initilization call function ptpd_init().
  6. Continuously call function ptpd_task(). Remember to call igmp_timer() every 100 ms as well.