M-Labs/artiq-zynq
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uncommented parts, replaced clock with timer

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This commit is contained in:
mwojcik 2021-08-02 09:52:33 +02:00
parent f543501012
commit 54f95c9335
2 changed files with 19 additions and 18 deletions
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2
src/runtime/src/main.rs
View File

@ -201,7 +201,7 @@ pub fn main_core0() {
i2c::init();
#[cfg(feature = "target_kasli_soc")]
si5324::setup(unsafe { (&mut i2c::I2C_BUS).as_mut().unwrap() },
&SI5324_SETTINGS, si5324::Input::Ckin2).expect("cannot initialize Si5324");
&SI5324_SETTINGS, si5324::Input::Ckin2, timer).expect("cannot initialize Si5324");
let cfg = match Config::new() {
Ok(cfg) => cfg,

35
src/runtime/src/si5324.rs
View File

@ -1,6 +1,7 @@
use core::result;
use log::info;
use libboard_zynq::i2c::I2c;
use libboard_zynq::{i2c::I2c, timer::GlobalTimer, time::Milliseconds};
use embedded_hal::blocking::delay::DelayUs;
type Result<T> = result::Result<T, &'static str>;
@ -134,9 +135,9 @@ fn ident(i2c: &mut I2c) -> Result<u16> {
Ok(((read(i2c, 134)? as u16) << 8) | (read(i2c, 135)? as u16))
}
fn soft_reset(i2c: &mut I2c) -> Result<()> {
//TODO write_no_ack_value(i2c, 136, read(136)? | 0x80)?;
//TODO clock::spin_us(10_000);
fn soft_reset(i2c: &mut I2c, timer: GlobalTimer) -> Result<()> {
write_no_ack_value(i2c, 136, read(i2c, 136)? | 0x80)?;
timer.delay_us(10_000);
Ok(())
}
@ -155,20 +156,20 @@ fn locked(i2c: &mut I2c) -> Result<bool> {
Ok((read(i2c, 130)? & 0x01) == 0) // LOL_INT=0
}
fn monitor_lock(i2c: &mut I2c) -> Result<()> {
fn monitor_lock(i2c: &mut I2c, timer: GlobalTimer) -> Result<()> {
info!("waiting for Si5324 lock...");
// TODO let t = clock::get_ms();
let timeout = timer.get_time() + Milliseconds(20_000);
while !locked(i2c)? {
// Yes, lock can be really slow.
/*if clock::get_ms() > t + 20000 {
if timer.get_time() > timeout {
return Err("Si5324 lock timeout");
}*/
}
}
info!(" ...locked");
Ok(())
}
fn init(i2c: &mut I2c) -> Result<()> {
fn init(i2c: &mut I2c, timer: GlobalTimer) -> Result<()> {
#[cfg(feature = "target_kasli_soc")]
{
i2c.pca9548_select(0x70, 0)?;
@ -179,16 +180,16 @@ fn init(i2c: &mut I2c) -> Result<()> {
return Err("Si5324 does not have expected product number");
}
soft_reset(i2c)?;
soft_reset(i2c, timer)?;
Ok(())
}
pub fn bypass(i2c: &mut I2c, input: Input) -> Result<()> {
pub fn bypass(i2c: &mut I2c, input: Input, timer: GlobalTimer) -> Result<()> {
let cksel_reg = match input {
Input::Ckin1 => 0b00,
Input::Ckin2 => 0b01,
};
init(i2c)?;
init(i2c, timer)?;
rmw(i2c, 21, |v| v & 0xfe)?; // CKSEL_PIN=0
rmw(i2c, 3, |v| (v & 0x3f) | (cksel_reg << 6))?; // CKSEL_REG
rmw(i2c, 4, |v| (v & 0x3f) | (0b00 << 6))?; // AUTOSEL_REG=b00
@ -197,14 +198,14 @@ pub fn bypass(i2c: &mut I2c, input: Input) -> Result<()> {
Ok(())
}
pub fn setup(i2c: &mut I2c, settings: &FrequencySettings, input: Input) -> Result<()> {
pub fn setup(i2c: &mut I2c, settings: &FrequencySettings, input: Input, timer: GlobalTimer) -> Result<()> {
let s = map_frequency_settings(settings)?;
let cksel_reg = match input {
Input::Ckin1 => 0b00,
Input::Ckin2 => 0b01,
};
init(i2c)?;
init(i2c, timer)?;
if settings.crystal_ref {
rmw(i2c, 0, |v| v | 0x40)?; // FREE_RUN=1
}
@ -239,11 +240,11 @@ pub fn setup(i2c: &mut I2c, settings: &FrequencySettings, input: Input) -> Resul
return Err("Si5324 misses clock input signal");
}
monitor_lock(i2c)?;
monitor_lock(i2c, timer)?;
Ok(())
}
pub fn select_input(i2c: &mut I2c, input: Input) -> Result<()> {
pub fn select_input(i2c: &mut I2c, input: Input, timer: GlobalTimer) -> Result<()> {
let cksel_reg = match input {
Input::Ckin1 => 0b00,
Input::Ckin2 => 0b01,
@ -252,6 +253,6 @@ pub fn select_input(i2c: &mut I2c, input: Input) -> Result<()> {
if !has_ckin(i2c, input)? {
return Err("Si5324 misses clock input signal");
}
monitor_lock(i2c)?;
monitor_lock(i2c, timer)?;
Ok(())
}