Re: [time-nuts] (newbie alert) hints on tweaking IEEE1588 on embedded systems

2019-09-23 Thread Philip Gladstone
I also have an STM32 port of the ptpd code that seems to work reasonably well -- it runs on an STM32F407 board. I'll hack up some code to see what the actual error is -- the ptp master is another board deriving time from GPS and I could add another gps to the second board to use as a source of trut

[time-nuts] (newbie alert) hints on tweaking IEEE1588 on embedded systems

2019-09-04 Thread Andrew Kohlsmith (mailing lists account)
Hello everyone, I’ve resurrected an old and no longer supported implementation of PTP for the STM32 series of 32-bit microcontrollers. In a nutshell: the ethernet MAC on these micros has hardware support for packet time stamping and fine-grained adjustment of a free running timer. ST Micro had