1 files changed, 52 insertions, 0 deletions
diff --git a/host/tests/x400_rfdc_control_test.cpp b/host/tests/x400_rfdc_control_test.cpp
new file mode 100644
index 000000000..ec80682fa
--- /dev/null
+++ b/host/tests/x400_rfdc_control_test.cpp
@@ -0,0 +1,52 @@
+//
+// Copyright 2020 Ettus Research, a National Instruments Brand
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+//
+
+#include <uhdlib/usrp/common/x400_rfdc_control.hpp>
+#include <boost/test/unit_test.hpp>
+
+using uhd::rfnoc::x400::rfdc_control;
+
+struct x400_rfdc_fixture
+{
+    static constexpr size_t RFDC_MEM_SIZE = 1;
+
+    x400_rfdc_fixture()
+        : mem(1 << rfdc_control::regmap::NCO_RESET_DONE_MSB, RFDC_MEM_SIZE)
+        , rfdcc(
+              uhd::memmap32_iface_timed{
+                  [&](const uint32_t addr, const uint32_t data, const uhd::time_spec_t&) {
+                      mem[addr] = data;
+                  },
+                  [&](const uint32_t addr) { return mem[addr]; }},
+              "TEST::RFDC")
+    {
+        // nop
+    }
+
+    std::vector<uint32_t> mem;
+    rfdc_control rfdcc;
+};
+
+
+BOOST_FIXTURE_TEST_CASE(test_nco_reset, x400_rfdc_fixture)
+{
+    rfdcc.reset_ncos({rfdc_control::rfdc_type::RX0}, uhd::time_spec_t::ASAP);
+    BOOST_CHECK(mem[rfdc_control::regmap::NCO_RESET] & 0x1);
+    // Fake self-clearing bit
+    mem[rfdc_control::regmap::NCO_RESET] = 1 << rfdc_control::regmap::NCO_RESET_DONE_MSB;
+    // This should print a warning:
+    rfdcc.reset_ncos({}, uhd::time_spec_t::ASAP);
+    BOOST_CHECK_EQUAL(mem[rfdc_control::regmap::NCO_RESET]
+                          & (1 << rfdc_control::regmap::NCO_RESET_START_MSB),
+        0);
+    BOOST_CHECK(rfdcc.get_nco_reset_done());
+}
+
+BOOST_FIXTURE_TEST_CASE(test_nco_freq, x400_rfdc_fixture)
+{
+    // TODO: Add checks when implemented
+    rfdcc.set_nco_freq(rfdc_control::rfdc_type::RX0, 1e9);
+}