Posted on April 17, 2018 at 10:57according to the user manual RM0385, there are some programming steps for system time generation initialization and they are basically setting some register values:
1. Mask the Time stamp trigger interrupt by setting bit 9 in the MACIMR register.
2. Program Time stamp register bit 0 to enable time stamping.
3. Program the Subsecond increment register based on the PTP clock frequency.
4. If you are using the Fine correction method, program the Time stamp addend register
and set Time stamp control register bit 5 (addend register update).
5. Poll the Time stamp control register until bit 5 is cleared.
6. To select the Fine correction method (if required), program Time stamp control register
bit 1.
7. Program the Time stamp high update and Time stamp low update registers with the
appropriate time value.
8. Set Time stamp control register bit 2 (Time stamp init).
9. The Time stamp counter starts operation as soon as it is initialized with the value
written in the Time stamp update register.
10. Enable the MAC receiver and transmitter for proper time stamping.
I followed these steps and the register values are correctly set. But I'm still struggling to find a code to use this feature! any advice? is there a well-known library that solves my problem?
