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-rw-r--r--host/lib/usrp/dboard/db_sbx_common.hpp29
1 files changed, 26 insertions, 3 deletions
diff --git a/host/lib/usrp/dboard/db_sbx_common.hpp b/host/lib/usrp/dboard/db_sbx_common.hpp
index 0e4dc5ace..8f305a7c4 100644
--- a/host/lib/usrp/dboard/db_sbx_common.hpp
+++ b/host/lib/usrp/dboard/db_sbx_common.hpp
@@ -116,6 +116,14 @@ static const freq_range_t sbx_enable_rx_lo_filter = list_of
(range_t(0.4e9, 1.5e9))
;
+static const freq_range_t cbx_enable_tx_lo_filter = list_of
+ (range_t(1.2e9, 2e9))
+;
+
+static const freq_range_t cbx_enable_rx_lo_filter = list_of
+ (range_t(1.2e9, 2e9))
+;
+
static const std::vector<std::string> sbx_tx_antennas = list_of("TX/RX")("CAL");
static const std::vector<std::string> sbx_rx_antennas = list_of("TX/RX")("RX2")("CAL");
@@ -226,9 +234,12 @@ protected:
/*!
* CBX daughterboard
*
- * The only driver difference between SBX and CBX is the MAX2870 vs. ADF435x.
- * There is also no LO filter switching required, but the GPIO is left blank
- * so we don't worry about it.
+ * There are a few differences between SBX and CBX
+ * - The CBX and SBX use the MAX2870 and ADF435x respectively for LOs
+ * - There are different frequency ranges
+ * - There are different LO LPF cutoff frequencies
+ * There is also no LO filter switching required on CBX, but the GPIO is left
+ * blank so we don't worry about it.
*/
class cbx : public sbx_versionx {
public:
@@ -252,6 +263,18 @@ protected:
freq_range_t freq_range;
/*!
+ * Frequency range to use the LO LPF in RX; this is set in the constructor
+ * to correspond either to SBX or CBX.
+ */
+ freq_range_t enable_rx_lo_filter;
+
+ /*!
+ * Frequency range to use the LO LPF in TX; this is set in the constructor
+ * to correspond either to SBX or CBX.
+ */
+ freq_range_t enable_tx_lo_filter;
+
+ /*!
* Handle to the version-specific implementation of the SBX.
*
* Since many of this class's functions are dependent on the version of the