updated udp packet fragmentation so that we don't have to restrict number of samples to be a multiple of a fixed udp packet size

python/radar_manager.py

@@ -71,7 +71,8 @@ class RadarManager:
         self.get_fpga_datecode()
 
         # Update UDP packet size
-        self.packet_size = 4096
+        # self.packet_size = 4096
+        self.packet_size = 16
         self.axi_write_register(0x4005001C, self.packet_size)
 
         self.reset_10g_udp()

python/test_cpi.py

@@ -45,11 +45,12 @@ def main():
     # CPI Parameters (timing values are in clk ticks)
     num_pulses = 128
     # Should be multiple of udp packet size, currently 4096 bytes, or 1024 samples
-    num_samples = 8192
+    # num_samples = 8192
+    num_samples = 8100
     start_sample = 2000
     tx_num_samples = 4096
     tx_start_sample = start_sample
-    prf = 1000
+    prf = 10000
     pri = int(1/prf * clk)
     pri -= (pri % 3)
     # pri = int(.0001 * clk)
@@ -58,7 +59,12 @@ def main():
     tx_lo_offset = 10e6
     rx_lo_offset = 0
     dec_rate = 1
-    test_duration = 2
+    test_duration = 60
+
+    # TESTING
+    total_bytes_cpi = num_pulses * num_samples * 4
+    radar.axi_write_register(0x4005001C, total_bytes_cpi)
+    # TESTING
 
     pri_float = pri / clk