Re: [seL4] Get real time clock data (and timer) from I.MX6

I see. Thanks for the info. So by default, the root task has complete control over physical address containing gpt data. And if I want to use the gpt inside a different task, the root task has to pass its capability to that task. Without that, any non-root task wouldnt be able to access it. Am I understanding the timer's capability access control correctly? Oak On Tue, Jun 28, 2016 at 8:39 PM, Norrathep Rattanavipanon wrote:

Thanks Anna.

We are looking for a way to get timestamp (wall clock) that can be used in the userland for authenticating an incoming message from remote server.

I see that the real-time clock driver is not implemented yet but an accurate timer would do the job too.

So any recommendation on which timer implementation to use? Would this one work? https://github.com/seL4/libsel4platsupport/blob/master/src/mach/imx/timer.c

Thanks, Oak

On Tue, Jun 28, 2016 at 5:17 PM, Norrathep Rattanavipanon < nrattana@uci.edu> wrote:

...

Hi,

I was wondering if there's any real time clock implementation for I.MX6 in sel4.

And if there isnt any, what would be the best way to use a timer in sel4 (since I saw many implementations of those)? through sel4platsupport_get_default_timer?

Best, Oak

-- Norrathep (Oak) Rattanavipanon M.S. in Computer Science University of California - Irvine

-- Norrathep (Oak) Rattanavipanon M.S. in Computer Science University of California - Irvine

-- Norrathep (Oak) Rattanavipanon M.S. in Computer Science University of California - Irvine