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authorsugandhagupta <sugandha.gupta@ettus.com>2017-06-06 16:02:02 -0700
committerMartin Braun <martin.braun@ettus.com>2017-12-22 15:03:59 -0800
commit5f9d617073e12f191df90a0510702e2a1ee52bc9 (patch)
treecb6993cf8a0e6d967687f4c75f14eca20ccbe4e1 /host/lib/rfnoc
parent62e2c25107234ebefe9f2668e44e79d37cd5a2e0 (diff)
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rfnoc: ddc - Changed M = 2 for eiscat DDC
Diffstat (limited to 'host/lib/rfnoc')
-rw-r--r--host/lib/rfnoc/ddc_block_ctrl_impl.cpp10
1 files changed, 9 insertions, 1 deletions
diff --git a/host/lib/rfnoc/ddc_block_ctrl_impl.cpp b/host/lib/rfnoc/ddc_block_ctrl_impl.cpp
index adedf69ae..62a5ce896 100644
--- a/host/lib/rfnoc/ddc_block_ctrl_impl.cpp
+++ b/host/lib/rfnoc/ddc_block_ctrl_impl.cpp
@@ -252,7 +252,15 @@ private:
// Rate change = M/N
sr_write("N", std::pow(2.0, double(hb_enable)) * (decim & 0xff), chan);
- sr_write("M", 1, chan);
+ const auto noc_id = _tree->access<uint64_t>(_root_path / "noc_id").get();
+ // FIXME this should be a rb reg in the FPGA, not based on a hard-coded
+ // Noc-ID
+ if (noc_id == 0xDDC5E15CA7000000) {
+ UHD_LOG_DEBUG("DDC", "EISCAT DDC! Assuming real inputs.");
+ sr_write("M", 2, chan);
+ } else {
+ sr_write("M", 1, chan);
+ }
if (decim > 1 and hb_enable == 0) {
UHD_LOGGER_WARNING("RFNOC") << boost::format(