miegl/b210-k7-fpga
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

FPGA: Restore FIR filter in rx_frontend_gen3

Browse Source 
The FIR filter applied gain.  Removing it caused incorrect scaling and
signals where every other sample was zero.  Also parameterized heterodyne
frontend processing so it would not use resources in images not
requiring it.

Signed-off-by: michael-west <michael.west@ettus.com>


Original-commit: c27519624ec0f3a44ac1130635a03dafcf2e7f13
This commit is contained in:
michael-west
2023-01-19 10:05:27 -06:00
committed by Wade Fife
parent 740202aa22
commit b8163da1d1
5 changed files with 73 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/control/fe_control.v
+6 -3
View File
@@ -14,7 +14,10 @@ module fe_control #(
parameter NUM_CHANNELS = 2,
parameter [7:0] SR_FE_CHAN_OFFSET = 16,
parameter [7:0] SR_TX_FE_BASE = 192,
parameter [7:0] SR_RX_FE_BASE = 200
parameter [7:0] SR_RX_FE_BASE = 200,
parameter BYPASS_DC_OFFSET_CORR = 0,
parameter BYPASS_IQ_COMP = 0,
parameter BYPASS_HETERODYNE = 1
)(
input clk, input reset,
// Commands from Radio Core
@@ -37,7 +40,7 @@ module fe_control #(
tx_frontend_gen3 #(
.SR_OFFSET_I(SR_TX_OFFSET_I), .SR_OFFSET_Q(SR_TX_OFFSET_Q),.SR_MAG_CORRECTION(SR_TX_MAG_CORRECTION),
.SR_PHASE_CORRECTION(SR_TX_PHASE_CORRECTION), .SR_MUX(SR_TX_MUX),
.BYPASS_DC_OFFSET_CORR(0), .BYPASS_IQ_COMP(0),
.BYPASS_DC_OFFSET_CORR(BYPASS_DC_OFFSET_CORR), .BYPASS_IQ_COMP(BYPASS_IQ_COMP),
.DEVICE("7SERIES")
) tx_fe_corr_i (
.clk(clk), .reset(reset),
@@ -56,7 +59,7 @@ module fe_control #(
rx_frontend_gen3 #(
.SR_MAG_CORRECTION(SR_RX_MAG_CORRECTION), .SR_PHASE_CORRECTION(SR_RX_PHASE_CORRECTION), .SR_OFFSET_I(SR_RX_OFFSET_I),
.SR_OFFSET_Q(SR_RX_OFFSET_Q), .SR_IQ_MAPPING(SR_RX_IQ_MAPPING), .SR_HET_PHASE_INCR(SR_RX_HET_PHASE_INCR),
.BYPASS_DC_OFFSET_CORR(0), .BYPASS_IQ_COMP(0), .BYPASS_REALMODE_DSP(0),
.BYPASS_DC_OFFSET_CORR(BYPASS_DC_OFFSET_CORR), .BYPASS_IQ_COMP(BYPASS_IQ_COMP), .BYPASS_HETERODYNE(BYPASS_HETERODYNE),
.DEVICE("7SERIES")
) rx_fe_corr_i (
.clk(clk), .reset(reset), .sync_in(time_sync),