M-Labs
/
artiq
mirror of https://github.com/m-labs/artiq.git
2
0
Fork 2
Code Issues Projects Releases Wiki Activity

firmware/serwb: automatically adjust prbs test delay to prbs test cycles, increase prbs test cycles

This commit is contained in:
Florent Kermarrec 2018-05-24 10:18:08 +02:00
parent 19e5280824
commit ad89c42acc
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
artiq/firmware/libboard_artiq/serwb.rs
View File

@ -43,16 +43,19 @@ pub fn wait_init() {
info!("done.");
unsafe {
let prbs_test_cycles : u32 = 1<<22;
let prbs_test_us : u64 = ((prbs_test_cycles as u64)*40)/125; // 40 bits @125MHz linerate
info!("RTM to AMC Link test");
csr::serwb_phy_amc::control_prbs_cycles_write(1<<20);
csr::serwb_phy_amc::control_prbs_cycles_write(prbs_test_cycles);
csr::serwb_phy_amc::control_prbs_start_write(1);
clock::spin_us(1000000);
clock::spin_us(prbs_test_us*110/100); // PRBS test time + 10%
info!("{} errors", csr::serwb_phy_amc::control_prbs_errors_read());
info!("AMC to RTM Link test");
csr::serwb_phy_rtm::control_prbs_cycles_write(1<<20);
csr::serwb_phy_rtm::control_prbs_cycles_write(prbs_test_cycles);
csr::serwb_phy_rtm::control_prbs_start_write(1);
clock::spin_us(1000000);
clock::spin_us(prbs_test_us*110/100); // PRBS test time + 10%
info!("{} errors", csr::serwb_phy_rtm::control_prbs_errors_read());
}