Giters

min-protocol / min

The MIN protocol specification and reference implementation

Geek Repo:Geek Repo

Github PK Tool:Github PK Tool

min_time_ms()

Resonanz opened this issue · comments

commented

Hi Ken, I think this callback function documentation needs some more info. This is called by your code but I'm not sure what it is passing...?

min_time_ms()
This is called to obtain current time in milliseconds. This is used by the MIN transport protocol to drive
timeouts and retransmits.
commented

This returns the passage of time in milliseconds. It's used to drive the timeouts in the transport protocol. You need to return a 32-bit integer for the current time in milliseconds. You probably have a periodic interrupt that increments a variable every interrupt? If not then you need to synthesise a timer somehow: maybe read a free-running counter and convert to milliseconds? It depends on your run-time environment.

commented

Okay, thanks! That's easy to implement. So MIN calls the function and gets a signed or unsigned int?

commented

uint32_t: an unsigned int.