From 4342595ea8379630bc48a78c1ae678fbd7e1f8b9 Mon Sep 17 00:00:00 2001
From: "Raymond.Knopp" <raymond.knopp@eurecom.fr>
Date: Thu, 9 Mar 2017 02:43:31 +0100
Subject: [PATCH] calibration (RX) for LimeSDR. Use of new API for RF gains.
---
targets/ARCH/LMSSDR/USERSPACE/LIB/lms_lib.cpp | 28 +++++++++----------
.../CONF/enb.band13.tm1.50PRB.lmssdr.conf | 12 ++++----
2 files changed, 20 insertions(+), 20 deletions(-)
diff --git a/targets/ARCH/LMSSDR/USERSPACE/LIB/lms_lib.cpp b/targets/ARCH/LMSSDR/USERSPACE/LIB/lms_lib.cpp
index 1e3e1a8cbf..4d020aa319 100644
--- a/targets/ARCH/LMSSDR/USERSPACE/LIB/lms_lib.cpp
+++ b/targets/ARCH/LMSSDR/USERSPACE/LIB/lms_lib.cpp
@@ -134,15 +134,15 @@ int trx_lms_set_gains(openair0_device* device, openair0_config_t *openair0_cfg)
int ret=0;
- double rxg_ratio = openair0_cfg[0].rx_gain[0]/openair0_cfg[0].rx_gain_offset[0];
- if (rxg_ratio > 1) {
- printf("[LMS] Reduce RX Gain 0 by %f dB\n",openair0_cfg[0].rx_gain[0]-openair0_cfg[0].rx_gain_offset[0]);
+ // double rxg_ratio = openair0_cfg[0].rx_gain[0]/openair0_cfg[0].rx_gain_offset[0];
+ if (openair0_cfg->rx_gain[0] > 70+openair0_cfg->rx_gain_offset[0]) {
+ printf("[LMS] Reduce RX Gain 0 by %f dB\n",openair0_cfg->rx_gain[0]-openair0_cfg->rx_gain_offset[0]-70);
ret = -1;
- rxg_ratio = 1;
+ // rxg_ratio = 1;
}
- LMS_SetNormalizedGain(lms_device, LMS_CH_TX, 0, openair0_cfg[0].tx_gain[0]/100.0);
- LMS_SetNormalizedGain(lms_device, LMS_CH_RX, 0, .8*rxg_ratio);
+ LMS_SetGaindB(lms_device, LMS_CH_TX, 0, openair0_cfg->tx_gain[0]);
+ LMS_SetGaindB(lms_device, LMS_CH_RX, 0, openair0_cfg->rx_gain[0]-openair0_cfg->rx_gain_offset[0]);
/*
// RX gains, use low-level setting
double gv = openair0_cfg[0].rx_gain[0] - openair0_cfg[0].rx_gain_offset[0];
@@ -309,18 +309,18 @@ int trx_lms_set_freq(openair0_device* device, openair0_config_t *openair0_cfg,in
// V1.2 board
rx_gain_calib_table_t calib_table_lmssdr_1v2[] = {
{3500000000.0,44.0}, // on L PAD
- {2660000000.0,62.0}, // on L PAD
- {2300000000.0,62.0}, // on L PAD
- {1880000000.0,64.0}, // on L PAD
+ {2660000000.0,55.0}, // on L PAD
+ {2300000000.0,54.0}, // on L PAD
+ {1880000000.0,54.0}, // on L PAD
{816000000.0,79.0}, // on W PAD
{-1,0}};
// V1.4 board
rx_gain_calib_table_t calib_table_lmssdr[] = {
- {3500000000.0,97.0}, // on H PAD
- {2660000000.0,110.0}, // on H PAD
- {2300000000.0,106.0}, // on H PAD
- {1880000000.0,106.0}, // on H PAD
- {816000000.0,116.0}, // on W PAD
+ {3500000000.0,44.0}, // on H PAD
+ {2660000000.0,55.0}, // on H PAD
+ {2300000000.0,54.0}, // on H PAD
+ {1880000000.0,54.0}, // on H PAD
+ {816000000.0,79.0}, // on L PAD
{-1,0}};
diff --git a/targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band13.tm1.50PRB.lmssdr.conf b/targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band13.tm1.50PRB.lmssdr.conf
index 3eea96059b..1083aa382a 100644
--- a/targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band13.tm1.50PRB.lmssdr.conf
+++ b/targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band13.tm1.50PRB.lmssdr.conf
@@ -40,7 +40,7 @@ eNBs =
nb_antennas_tx = 1;
nb_antennas_rx = 1;
tx_gain = 20;
- rx_gain = 116;
+ rx_gain = 100;
prach_root = 0;
prach_config_index = 0;
prach_high_speed = "DISABLE";
@@ -136,7 +136,7 @@ eNBs =
};
////////// MME parameters:
- mme_ip_address = ( { ipv4 = "192.168.12.70";
+ mme_ip_address = ( { ipv4 = "127.0.0.3";
ipv6 = "192:168:30::17";
active = "yes";
preference = "ipv4";
@@ -145,11 +145,11 @@ eNBs =
NETWORK_INTERFACES :
{
- ENB_INTERFACE_NAME_FOR_S1_MME = "eth0";
- ENB_IPV4_ADDRESS_FOR_S1_MME = "192.168.12.150/24";
+ ENB_INTERFACE_NAME_FOR_S1_MME = "lo";
+ ENB_IPV4_ADDRESS_FOR_S1_MME = "127.0.0.2/24";
- ENB_INTERFACE_NAME_FOR_S1U = "eth0";
- ENB_IPV4_ADDRESS_FOR_S1U = "192.168.12.150/24";
+ ENB_INTERFACE_NAME_FOR_S1U = "lo";
+ ENB_IPV4_ADDRESS_FOR_S1U = "127.0.0.5/24";
ENB_PORT_FOR_S1U = 2152; # Spec 2152
};
--
GitLab