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libboard_zynq: add GlobalTimer::get_us(), use in libsupport_zynq::logger

This commit is contained in:
Astro 2020-04-25 03:01:19 +02:00
parent fe6a058a6b
commit aa93794632
3 changed files with 17 additions and 4 deletions

View File

@ -268,7 +268,11 @@ pub fn main_core0() {
task::spawn(async move {
loop {
delay(&mut countdown, Milliseconds(1000)).await;
println!("time: {} ms", timer.get_time().0);
let timestamp = timer.get_us();
let seconds = timestamp / 1_000_000;
let micros = timestamp % 1_000_000;
println!("time: {:6}.{:06}s", seconds, micros);
}
});

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@ -78,6 +78,14 @@ impl GlobalTimer {
Milliseconds(self.get_counter() * (prescaler + 1) / (clocks.cpu_3x2x() as u64 / 1000))
}
/// read with high precision
pub fn get_us(&self) -> u64 {
let prescaler = self.regs.global_timer_control.read().prescaler() as u64;
let clocks = Clocks::get();
1_000_000 * self.get_counter() * (prescaler + 1) / clocks.cpu_3x2x() as u64
}
/// return a handle that has implements
/// `embedded_hal::timer::CountDown`
pub fn countdown(&self) -> CountDown {

View File

@ -1,6 +1,6 @@
//! A logger for the `log` crate
use libboard_zynq::{println, stdio};
use libboard_zynq::{println, stdio, timer::GlobalTimer};
pub static LOGGER: Logger = Logger;
@ -17,8 +17,9 @@ impl log::Log for Logger {
fn log(&self, record: &log::Record) {
if self.enabled(record.metadata()) {
// TODO: let timestamp = clock::get_us();
let timestamp = 0;
let timestamp = unsafe {
GlobalTimer::get()
}.get_us();
let seconds = timestamp / 1_000_000;
let micros = timestamp % 1_000_000;