switch between using/not using tx_mxfe_en

Signed-off-by: PopPaul2021 <[email protected]>

examples/ad9081_stingray.py

@@ -15,6 +15,7 @@
 
 tx_offload_base_addr    = 0x9c440000
 rx_offload_base_addr    = 0x9c450000
+rx_dma_base_addr        = 0x9c420000
 control_reg_offload     = 0x88
 
 conv = adi.ad9081(url)
@@ -30,30 +31,26 @@
 conv.rx_main_nco_frequencies = [100000000] * 4 
 conv.tx_main_nco_frequencies = [100000000] * 4 
 
-conv.rx_enabled_channels = [0]
-conv.tx_enabled_channels = [0]
+conv.rx_enabled_channels = [0,1]
+conv.tx_enabled_channels = [0,1]
 conv.rx_nyquist_zone     = ["odd"] * 4
 
 conv.tx_cyclic_buffer = True
 conv.rx_cyclic_buffer = False
 conv.tx_ddr_offload   = False
 conv.rx_ddr_offload   = False
 
-print("0x001B:", conv.ad9081_register_read(0x001B))
-conv.ad9081_register_write(0x001B,0xf)
-print("0x001B:", conv.ad9081_register_read(0x001B))
-# 
-print("0x0321:", conv.ad9081_register_read(0x0321))
-conv.ad9081_register_write(0x0321,0x00)
-print("0x0321:", conv.ad9081_register_read(0x0321))
-
 stdout, stderr = ssh._run(f"busybox devmem 0x{tx_offload_base_addr + control_reg_offload:02x} 32 0x2")
 stdout, stderr = ssh._run(f"busybox devmem 0x{rx_offload_base_addr + control_reg_offload:02x} 32 0x2")
 
 frame_length_ms           = 1
-generated_signal_time     = 0.3
-tx_time                   = 0.2
-rx_time                   = 0.3
+rx_time                   = 0.533
+generated_signal_time     = 0.1 
+blank_time                = 0.05
+use_tx_mxfe_en            = 1
+tx_time                   = generated_signal_time - blank_time
+capture_range             = 1
+
 
 N_tx                      = int((generated_signal_time * conv.tx_sample_rate) / 1000)
 N_rx                      = int((rx_time * conv.tx_sample_rate) / 1000)
@@ -70,22 +67,36 @@
 RX_MXFE_EN      = 3
 TX_MXFE_EN      = 4
 TX_STINGRAY_EN  = 5
+if use_tx_mxfe_en: 
+    print("0x001B:", conv.ad9081_register_read(0x001B))
+    conv.ad9081_register_write(0x001B,0xf)
+    print("0x001B:", conv.ad9081_register_read(0x001B))
+    # 
+    print("0x0321:", conv.ad9081_register_read(0x0321))
+    conv.ad9081_register_write(0x0321,0x00)
+    print("0x0321:", conv.ad9081_register_read(0x0321))
+    tddn.channel[TX_MXFE_EN].on_ms    = 0
+    tddn.channel[TX_MXFE_EN].off_ms   = tx_time
+    tddn.channel[TX_MXFE_EN].polarity = 0
+    tddn.channel[TX_MXFE_EN].enable   = 1
+else :
+    tddn.channel[TX_MXFE_EN].on_ms    = 0
+    tddn.channel[TX_MXFE_EN].off_ms   = 0
+    tddn.channel[TX_MXFE_EN].polarity = 1
+    tddn.channel[TX_MXFE_EN].enable   = 1
+
 
 for chan in [TDD_ENABLE,RX_MXFE_EN,TX_STINGRAY_EN]:
     tddn.channel[chan].on_ms    = 0
     tddn.channel[chan].off_ms   = 0
     tddn.channel[chan].polarity = 1
     tddn.channel[chan].enable   = 1
 
+
+
 for chan in [RX_OFFLOAD_SYNC, TX_OFFLOAD_SYNC]:
     tddn.channel[chan].on_raw   = 0
-    tddn.channel[chan].off_raw  = 1
-    tddn.channel[chan].polarity = 0
-    tddn.channel[chan].enable   = 1
-
-for chan in [TX_MXFE_EN]:
-    tddn.channel[chan].on_ms    = 0
-    tddn.channel[chan].off_ms   = tx_time
+    tddn.channel[chan].off_raw  = 10
     tddn.channel[chan].polarity = 0
     tddn.channel[chan].enable   = 1
 
@@ -106,31 +117,25 @@
 
 fs = int(conv.tx_sample_rate)
 A = 0.9 * 2**15  # -6 dBFS
-B = 1e4
+B = 1e5
 T = N_tx / fs
 t = np.linspace(0, T, N_tx, endpoint=False)
 tx_sig = A * np.sin(2 * math.pi * B * t)
-conv.tx(tx_sig)
+conv.tx([tx_sig,tx_sig])
 
 tddn.sync_soft  = 0
 tddn.sync_soft  = 1
 
-capture_range = 100
-
-rx_sig = np.zeros((capture_range,N_rx)) 
-rx_t   = np.linspace(0,N_rx, N_rx , endpoint=False)
-
-fig, (ch1, ch2) = plt.subplots(2, 1)
-
+rx_sig = np.zeros((capture_range,2,N_rx)) 
+
 for r in range(capture_range):
     rx_sig[r]  = conv.rx()
 
 for r in range(capture_range):
     plt.suptitle(f"Capture number: {r}")
-    ch1.plot(rx_t, rx_sig[r])
-    ch1.set_title("Channel 1 data")
-    ch2.plot(rx_t, np.append(tx_sig,np.zeros(len(rx_t)-len(tx_sig))))
-    ch2.set_title("Generated signal")
+    plt.plot(rx_sig[0][0], label='Input Channel 1')
+    plt.plot(np.append(tx_sig*0.04, np.zeros(abs(len(rx_sig[0][0]) - len(tx_sig))))-3000, label='Generated Signal')
+plt.legend()
 plt.show()
 
 tddn.enable = 0