Change in osmo-trx[master]: LMSDevice: Set low-pass filters to smallest possible option

[Harald Welte]

Harald Welte has submitted this change and it was merged. ( https://gerrit.osmocom.org/9606 )

Change subject: LMSDevice: Set low-pass filters to smallest possible option
......................................................................

LMSDevice: Set low-pass filters to smallest possible option

Rx 1.4 MHz, Tx 5MHz.  Both massively too wide for GSM, but there's
no smaller band-width available.

Change-Id: I9723c9a2ea77f65bfa9d796d7c44adc2417e89cf
---
M Transceiver52M/device/lms/LMSDevice.cpp
1 file changed, 4 insertions(+), 0 deletions(-)

Approvals:
  Harald Welte: Looks good to me, approved
  Jenkins Builder: Verified



diff --git a/Transceiver52M/device/lms/LMSDevice.cpp b/Transceiver52M/device/lms/LMSDevice.cpp
index c131aea..3b2ce5e 100644
--- a/Transceiver52M/device/lms/LMSDevice.cpp
+++ b/Transceiver52M/device/lms/LMSDevice.cpp
@@ -156,6 +156,10 @@
 
 	/* Perform Rx and Tx calibration */
 	for (i=0; i<chans; i++) {
+		if (LMS_SetLPFBW(m_lms_dev, LMS_CH_RX, i, 1.4001e6) < 0)
+			goto out_close;
+		if (LMS_SetLPFBW(m_lms_dev, LMS_CH_TX, i, 5e6) < 0)
+			goto out_close;
 		LOG(INFO) << "Calibrating chan " << i;
 		if (LMS_Calibrate(m_lms_dev, LMS_CH_RX, i, LMS_CALIBRATE_BW_HZ, 0) < 0)
 			goto out_close;

-- 
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Gerrit-Project: osmo-trx
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I9723c9a2ea77f65bfa9d796d7c44adc2417e89cf
Gerrit-Change-Number: 9606
Gerrit-PatchSet: 2
Gerrit-Owner: Harald Welte <laforge at gnumonks.org>
Gerrit-Reviewer: Harald Welte <laforge at gnumonks.org>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: Pau Espin Pedrol <pespin at sysmocom.de>
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