diff --git a/verilog/dv/cocotb/hex_files/uart_rx.hex b/verilog/dv/cocotb/hex_files/uart_rx.hex
deleted file mode 100755
index d688718a..00000000
--- a/verilog/dv/cocotb/hex_files/uart_rx.hex
+++ /dev/null
@@ -1,82 +0,0 @@
-@00000000
-6F 00 00 0B 13 00 00 00 13 00 00 00 13 00 00 00
-13 00 00 00 13 00 00 00 13 00 00 00 13 00 00 00
-23 2E 11 FE 23 2C 51 FE 23 2A 61 FE 23 28 71 FE
-23 26 A1 FE 23 24 B1 FE 23 22 C1 FE 23 20 D1 FE
-23 2E E1 FC 23 2C F1 FC 23 2A 01 FD 23 28 11 FD
-23 26 C1 FD 23 24 D1 FD 23 22 E1 FD 23 20 F1 FD
-13 01 01 FC EF 00 40 11 83 20 C1 03 83 22 81 03
-03 23 41 03 83 23 01 03 03 25 C1 02 83 25 81 02
-03 26 41 02 83 26 01 02 03 27 C1 01 83 27 81 01
-03 28 41 01 83 28 01 01 03 2E C1 00 83 2E 81 00
-03 2F 41 00 83 2F 01 00 13 01 01 04 73 00 20 30
-17 01 00 F1 13 01 01 75 17 05 00 00 13 05 85 F6
-73 10 55 30 13 05 00 00 93 05 00 00 17 06 00 00
-13 06 C6 41 63 0C B5 00 83 26 06 00 23 20 D5 00
-13 05 45 00 13 06 46 00 6F F0 DF FE 13 05 00 00
-93 05 80 00 63 08 B5 00 23 20 05 00 13 05 45 00
-6F F0 5F FF 37 15 00 00 13 05 05 88 73 10 45 30
-EF 00 40 2D 6F 00 00 00 13 01 01 FF 23 26 81 00
-13 04 01 01 13 00 00 00 03 24 C1 00 13 01 01 01
-67 80 00 00 13 01 01 FF 23 26 81 00 13 04 01 01
-13 00 00 00 03 24 C1 00 13 01 01 01 67 80 00 00
-13 01 01 FE 23 2E 81 00 13 04 01 02 23 26 A4 FE
-83 27 C4 FE 73 90 07 BC 13 00 00 00 03 24 C1 01
-13 01 01 02 67 80 00 00 13 01 01 FF 23 26 11 00
-23 24 81 00 13 04 01 01 13 05 00 00 EF F0 5F FC
-B7 37 00 F0 93 87 87 03 13 07 A0 00 23 A0 E7 00
-B7 37 00 F0 93 87 C7 03 37 07 02 00 23 A0 E7 00
-13 07 10 00 23 10 E0 00 13 00 00 00 83 20 C1 00
-03 24 81 00 13 01 01 01 67 80 00 00 13 01 01 FF
-23 26 81 00 13 04 01 01 13 00 00 00 03 24 C1 00
-13 01 01 01 67 80 00 00 13 01 01 FF 23 26 81 00
-13 04 01 01 13 00 00 00 03 24 C1 00 13 01 01 01
-67 80 00 00 13 01 01 FE 23 2E 81 00 13 04 01 02
-23 26 A4 FE 83 27 C4 FE 83 A7 07 00 13 85 07 00
-03 24 C1 01 13 01 01 02 67 80 00 00 13 01 01 FF
-23 26 11 00 23 24 81 00 13 04 01 01 B7 67 00 F0
-13 85 87 80 EF F0 1F FC 93 07 05 00 13 85 07 00
-83 20 C1 00 03 24 81 00 13 01 01 01 67 80 00 00
-13 01 01 FE 23 2E 11 00 23 2C 81 00 13 04 01 02
-93 07 05 00 A3 07 F4 FE 03 47 F4 FE 93 07 A0 00
-63 16 F7 00 13 05 D0 00 EF F0 9F FD 13 00 00 00
-B7 67 00 F0 93 87 47 80 03 A7 07 00 93 07 10 00
-E3 08 F7 FE B7 67 00 F0 93 87 07 80 03 47 F4 FE
-23 A0 E7 00 13 00 00 00 83 20 C1 01 03 24 81 01
-13 01 01 02 67 80 00 00 13 01 01 FE 23 2E 11 00
-23 2C 81 00 13 04 01 02 23 26 A4 FE 6F 00 C0 01
-83 27 C4 FE 13 87 17 00 23 26 E4 FE 83 C7 07 00
-13 85 07 00 EF F0 DF F6 83 27 C4 FE 83 C7 07 00
-E3 90 07 FE 13 00 00 00 13 00 00 00 83 20 C1 01
-03 24 81 01 13 01 01 02 67 80 00 00 13 01 01 FD
-23 26 11 02 23 24 81 02 13 04 01 03 23 2E A4 FC
-13 00 00 00 EF F0 9F EF 13 07 05 00 93 07 10 00
-E3 0A F7 FE B7 67 00 F0 93 87 07 80 83 A7 07 00
-03 27 C4 FD 03 47 07 00 63 9C E7 00 B7 07 10 30
-93 87 87 FF 13 07 B0 01 23 A0 E7 00 6F 00 40 01
-B7 07 10 30 93 87 87 FF 13 07 E0 01 23 A0 E7 00
-B7 67 00 F0 93 87 07 80 83 A7 07 00 23 26 F4 FE
-B7 67 00 F0 93 87 07 80 83 A7 07 00 23 26 F4 FE
-B7 67 00 F0 93 87 07 80 83 A7 07 00 23 26 F4 FE
-B7 67 00 F0 93 87 07 80 83 A7 07 00 23 26 F4 FE
-B7 67 00 F0 93 87 07 80 83 A7 07 00 23 26 F4 FE
-13 00 00 00 83 20 C1 02 03 24 81 02 13 01 01 03
-67 80 00 00 13 01 01 FF 23 26 11 00 23 24 81 00
-13 04 01 01 B7 47 00 F0 93 87 07 80 13 07 10 00
-23 A0 E7 00 B7 07 10 30 93 87 87 FF 23 A0 07 00
-B7 07 10 30 93 87 C7 FF 23 A0 07 00 B7 07 00 26
-93 87 C7 03 37 27 00 00 13 07 97 80 23 A0 E7 00
-B7 07 00 26 93 87 87 03 13 07 30 40 23 A0 E7 00
-B7 07 00 26 13 07 10 00 23 A0 E7 00 13 00 00 00
-B7 07 00 26 03 A7 07 00 93 07 10 00 E3 0A F7 FE
-B7 67 00 F0 13 07 10 00 23 A0 E7 00 B7 07 10 30
-93 87 87 FF 13 07 A0 0A 23 A0 E7 00 B7 07 00 10
-13 85 87 4D EF F0 9F E9 B7 07 10 30 93 87 87 FF
-13 07 B0 0B 23 A0 E7 00 B7 07 00 10 13 85 C7 4D
-EF F0 DF E7 B7 07 10 30 93 87 87 FF 13 07 C0 0C
-23 A0 E7 00 B7 07 00 10 13 85 07 4E EF F0 1F E6
-13 00 00 00 83 20 C1 00 03 24 81 00 13 01 01 01
-67 80 00 00
-@000004D4
-00 00 00 00 42 00 00 00 4D 00 00 00 41 00 00 00
-00 00 00 00