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si5324: 10 MHz ext_ref_frequency 

* close #1254
* tested on innsbruck2 kasli variant
* sponsored by Uni Innsbruck/AQT

Signed-off-by: Robert Jördens <rj@quartiq.de>
This commit is contained in:
Robert Jördens 2019-11-22 14:02:13 +00:00
parent c536f6c4df
commit e0687b77f5
1 changed files with 13 additions and 0 deletions
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13
artiq/firmware/runtime/rtio_clocking.rs
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@ -67,6 +67,19 @@ pub mod crg {
#[cfg(si5324_as_synthesizer)]
fn setup_si5324_as_synthesizer() {
// 125 MHz output from 10 MHz CLKIN2, 504 Hz BW
#[cfg(all(rtio_frequency = "125.0", si5324_ext_ref, ext_ref_frequency = "10.0"))]
const SI5324_SETTINGS: si5324::FrequencySettings
= si5324::FrequencySettings {
n1_hs : 10,
nc1_ls : 4,
n2_hs : 10,
n2_ls : 300,
n31 : 75,
n32 : 6,
bwsel : 4,
crystal_ref: false
};
// 125MHz output, from 100MHz CLKIN2 reference, 586 Hz loop bandwidth
#[cfg(all(rtio_frequency = "125.0", si5324_ext_ref, ext_ref_frequency = "100.0"))]
const SI5324_SETTINGS: si5324::FrequencySettings