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hmc7043: do not freeze if SYSREF slip fails

This commit is contained in:
Sebastien Bourdeauducq 2018-06-27 17:32:56 +08:00
parent a8a2ad68d3
commit 4bbdd43bdf
1 changed files with 8 additions and 0 deletions
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8
artiq/firmware/libboard_artiq/hmc830_7043.rs
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@ -366,11 +366,19 @@ pub mod hmc7043 {
while sysref_sample() { while sysref_sample() {
sysref_slip(); sysref_slip();
slips0 += 1; slips0 += 1;
if slips0 > 1024 {
error!(" failed to reach 1->0 transition");
break;
}
} }
// get to the edge of the 0->1 transition (our final setpoint) // get to the edge of the 0->1 transition (our final setpoint)
while !sysref_sample() { while !sysref_sample() {
sysref_slip(); sysref_slip();
slips1 += 1; slips1 += 1;
if slips1 > 1024 {
error!(" failed to reach 0->1 transition");
break;
}
} }
info!(" ...done ({}/{} slips), verifying timing margin", slips0, slips1); info!(" ...done ({}/{} slips), verifying timing margin", slips0, slips1);