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firmware: fix a warning.

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This commit is contained in:
whitequark 2018-03-01 01:25:55 +00:00
parent d051cec0dd
commit 14f6fa6699
1 changed files with 3 additions and 4 deletions
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7
artiq/firmware/libboard_artiq/ad9154.rs
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@ -538,14 +538,13 @@ fn dac_prbs(dacno: u8) -> Result<(), &'static str> {
0b00*ad9154_reg::PHY_PRBS_PAT_SEL);
for i in 0..8 {
let mut lane_errors: u32 = 0;
/* step 9.a: select src err */
write(ad9154_reg::PHY_PRBS_TEST_CTRL,
i*ad9154_reg::PHY_SRC_ERR_CNT);
/* step 9.b: retrieve number of errors */
lane_errors = (read(ad9154_reg::PHY_PRBS_TEST_ERRCNT_LOBITS) as u32) |
((read(ad9154_reg::PHY_PRBS_TEST_ERRCNT_MIDBITS) as u32) << 8) |
((read(ad9154_reg::PHY_PRBS_TEST_ERRCNT_HIBITS) as u32) << 16);
let lane_errors = (read(ad9154_reg::PHY_PRBS_TEST_ERRCNT_LOBITS) as u32) |
((read(ad9154_reg::PHY_PRBS_TEST_ERRCNT_MIDBITS) as u32) << 8) |
((read(ad9154_reg::PHY_PRBS_TEST_ERRCNT_HIBITS) as u32) << 16);
if lane_errors > 0 {
warn!("AD9154-{} PRBS errors on lane{}: {:06x}", dacno, i, lane_errors);
}