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some changes for tx-gain setting

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This commit is contained in:
Raymond.Knopp
2016-11-17 11:57:14 +01:00
parent b018a3bbe9
commit 963ccb9bad
2 changed files with 7 additions and 16 deletions
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targets/ARCH/LMSSDR/USERSPACE/LIB/lms_lib.cpp
+6 -15
View File
@@ -131,18 +131,8 @@ void set_rx_gain_offset(openair0_config_t *openair0_cfg, int chain_index) {
*/ */
int trx_lms_set_gains(openair0_device* device, openair0_config_t *openair0_cfg) { int trx_lms_set_gains(openair0_device* device, openair0_config_t *openair0_cfg) {
/* double gv = openair0_cfg[0].rx_gain[0] - openair0_cfg[0].rx_gain_offset[0]; LMS_SetNormalizedGain(lms_device, LMS_CH_TX, 0, openair0_cfg[0].tx_gain[0]/100.0);
LMS_SetNormalizedGain(lms_device, LMS_CH_RX, 0, openair0_cfg[0].rx_gain[0]/openair0_cfg[0].rx_gain_offset[0]);
if (gv > 31) {
printf("RX Gain 0 too high, reduce by %f dB\n",gv-31);
gv = 31;
}
if (gv < 0) {
printf("RX Gain 0 too low, increase by %f dB\n",-gv);
gv = 0;
}
printf("[LMS] Setting 7002M G_PGA_RBB to %d\n", (uint16_t)gv);
LMS_WriteParam(lms_device,LMS7param(G_PGA_RBB),(uint16_t)gv);*/
return(0); return(0);
} }
@@ -209,10 +199,8 @@ int trx_lms_start(openair0_device *device){
LMS_SetAntenna(lms_device, LMS_CH_RX, 0, 3); LMS_SetAntenna(lms_device, LMS_CH_RX, 0, 3);
LMS_SetAntenna(lms_device, LMS_CH_TX, 0, 2); LMS_SetAntenna(lms_device, LMS_CH_TX, 0, 2);
trx_lms_set_gains(device, device->openair0_cfg);
/*LMS_SetNormalizedGain(lms_device, LMS_CH_TX, 0, 0.175);
LMS_SetNormalizedGain(lms_device, LMS_CH_RX, 0, 0.65);*/
for (int i = 0; i< device->openair0_cfg->rx_num_channels; i++) for (int i = 0; i< device->openair0_cfg->rx_num_channels; i++)
{ {
if (LMS_SetLPFBW(lms_device,LMS_CH_RX,i,device->openair0_cfg->rx_bw)!=0) if (LMS_SetLPFBW(lms_device,LMS_CH_RX,i,device->openair0_cfg->rx_bw)!=0)
@@ -239,6 +227,9 @@ int trx_lms_start(openair0_device *device){
tx_stream.throughputVsLatency = 0.1; tx_stream.throughputVsLatency = 0.1;
tx_stream.dataFmt = lms_stream_t::LMS_FMT_I12; tx_stream.dataFmt = lms_stream_t::LMS_FMT_I12;
tx_stream.isTx = true; tx_stream.isTx = true;
trx_lms_set_gains(device, device->openair0_cfg);
if (LMS_SetupStream(lms_device, &tx_stream)!=0) if (LMS_SetupStream(lms_device, &tx_stream)!=0)
printf("TX stream setup failed %s\n",LMS_GetLastErrorMessage()); printf("TX stream setup failed %s\n",LMS_GetLastErrorMessage());
targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band7.tm1.lmssdr.conf
+1 -1
View File
@@ -39,7 +39,7 @@ eNBs =
nb_antennas_ports = 1; nb_antennas_ports = 1;
nb_antennas_tx = 1; nb_antennas_tx = 1;
nb_antennas_rx = 1; nb_antennas_rx = 1;
tx_gain = 60; tx_gain = 100;
rx_gain = 111; rx_gain = 111;
prach_root = 0; prach_root = 0;
prach_config_index = 0; prach_config_index = 0;