Starting Tempest HDMI image generator script

scripts/DTutils.py

@@ -454,7 +454,7 @@ def TMDS_serial(I):
     Iserials.append(channel_list)
 
   # Digital to analog value mapping: [0,1]-->[-A,A] (A=1)
-  Iserials = 2*np.array(Iserials,dtype='int32') - 1
+  Iserials = np.sum(2*np.array(Iserials,dtype='int32') - 1, axis=0)
 
   del(channel_list)
 

scripts/tempest_HDMI_simulator.py

@@ -0,0 +1,42 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+Created on Tue Dec 20 2022
+
+@author: Emilio Martínez <emilio.martinez@fing.edu.uy>
+"""
+#%%
+import numpy as np
+from matplotlib import pyplot as plt
+from skimage.io import imread
+from scipy import signal
+import time
+from PIL import Image
+from DTutils import TMDS_encoding, TMDS_serial
+#%%
+I=imread('../images/VAMO!!.png')
+
+I_TMDS = TMDS_encoding (I, blanking = True)
+#%%
+v_total, h_total = I_TMDS.shape[:2]
+#%%
+I_TMDS_Tx = TMDS_serial(I_TMDS)
+#%%
+N_harm = 1
+fps = 60
+px_rate = h_total*v_total*fps
+bit_rate = 10*px_rate
+
+t_continuous = np.arange(len(I_TMDS_Tx))/bit_rate
+
+harm = N_harm*px_rate
+
+
+baseband_exponential = np.exp(-2j*np.pi*harm*t_continuous)
+#%%
+
+usrp_rate = 50e6
+
+I_Rx = signal.resample_poly(I_TMDS_Tx*baseband_exponential,up=usrp_rate, down=bit_rate)
+
+