From 05559d64b9c061c0da11cacec46f11fe03d852cb Mon Sep 17 00:00:00 2001 From: michael-west Date: Fri, 6 Jun 2014 15:27:02 -0700 Subject: Fix for BUG #500: B210: RX channels are not phase aligned - Adding UHD side code to invert second RX channel --- host/lib/usrp/b200/b200_impl.cpp | 1 + host/lib/usrp/cores/rx_dsp_core_3000.cpp | 9 +++++++-- host/lib/usrp/cores/rx_dsp_core_3000.hpp | 2 +- 3 files changed, 9 insertions(+), 3 deletions(-) (limited to 'host/lib/usrp') diff --git a/host/lib/usrp/b200/b200_impl.cpp b/host/lib/usrp/b200/b200_impl.cpp index 98141dbaa..261183128 100644 --- a/host/lib/usrp/b200/b200_impl.cpp +++ b/host/lib/usrp/b200/b200_impl.cpp @@ -518,6 +518,7 @@ void b200_impl::setup_radio(const size_t dspno) perif.framer = rx_vita_core_3000::make(perif.ctrl, TOREG(SR_RX_CTRL)); perif.ddc = rx_dsp_core_3000::make(perif.ctrl, TOREG(SR_RX_DSP), true /*is_b200?*/); perif.ddc->set_link_rate(10e9/8); //whatever + perif.ddc->set_mux("IQ", false, dspno == 1 ? true : false, dspno == 1 ? true : false); _tree->access(mb_path / "tick_rate") .subscribe(boost::bind(&rx_vita_core_3000::set_tick_rate, perif.framer, _1)) .subscribe(boost::bind(&rx_dsp_core_3000::set_tick_rate, perif.ddc, _1)); diff --git a/host/lib/usrp/cores/rx_dsp_core_3000.cpp b/host/lib/usrp/cores/rx_dsp_core_3000.cpp index 02c24b4bb..a39b4a05e 100644 --- a/host/lib/usrp/cores/rx_dsp_core_3000.cpp +++ b/host/lib/usrp/cores/rx_dsp_core_3000.cpp @@ -37,6 +37,8 @@ #define FLAG_DSP_RX_MUX_SWAP_IQ (1 << 0) #define FLAG_DSP_RX_MUX_REAL_MODE (1 << 1) +#define FLAG_DSP_RX_MUX_INVERT_Q (1 << 2) +#define FLAG_DSP_RX_MUX_INVERT_I (1 << 3) template T ceil_log2(T num){ return std::ceil(std::log(num)/std::log(T(2))); @@ -70,14 +72,17 @@ public: ) } - void set_mux(const std::string &mode, const bool fe_swapped){ + void set_mux(const std::string &mode, const bool fe_swapped, const bool invert_i, const bool invert_q){ static const uhd::dict mode_to_mux = boost::assign::map_list_of ("IQ", 0) ("QI", FLAG_DSP_RX_MUX_SWAP_IQ) ("I", FLAG_DSP_RX_MUX_REAL_MODE) ("Q", FLAG_DSP_RX_MUX_SWAP_IQ | FLAG_DSP_RX_MUX_REAL_MODE) ; - _iface->poke32(REG_DSP_RX_MUX, mode_to_mux[mode] ^ (fe_swapped? FLAG_DSP_RX_MUX_SWAP_IQ : 0)); + _iface->poke32(REG_DSP_RX_MUX, mode_to_mux[mode] + ^ (fe_swapped ? FLAG_DSP_RX_MUX_SWAP_IQ : 0) + ^ (invert_i ? FLAG_DSP_RX_MUX_INVERT_I : 0) + ^ (invert_q ? FLAG_DSP_RX_MUX_INVERT_Q : 0)); } void set_tick_rate(const double rate){ diff --git a/host/lib/usrp/cores/rx_dsp_core_3000.hpp b/host/lib/usrp/cores/rx_dsp_core_3000.hpp index f35e1e3d3..8c6a2178d 100644 --- a/host/lib/usrp/cores/rx_dsp_core_3000.hpp +++ b/host/lib/usrp/cores/rx_dsp_core_3000.hpp @@ -37,7 +37,7 @@ public: const bool is_b200 = false //TODO: Obsolete this when we switch to the new DDC on the B200 ); - virtual void set_mux(const std::string &mode, const bool fe_swapped = false) = 0; + virtual void set_mux(const std::string &mode, const bool fe_swapped = false, const bool invert_i = false, const bool invert_q = false) = 0; virtual void set_tick_rate(const double rate) = 0; -- cgit v1.2.3