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""" ############################ # DS90UB947-Q1 Init Code Example v1.1 # 947->948, Dual FPD-Link STP, 1920x1080@60Hz ############################ import time import sys # System dependant variables - adjust according to system UB947 = 0x18 # 947 I2C Address UB948 = 0x68 # Remote 948 Address StartAmbTemp = 25 # Example temperature measured by local sensor on PCB (Ambient temp around 947). In real system this should be read back from temp sensor during initialization Hres = 1920 # Expected horizontal active resolution Vres = 1080 # Expected vertical active resolution def pollstate(): count=0 board.WriteI2C(UB947,0x23,0x80) board.WriteI2C(UB947,0x24,0x80) mask = int('11111',2) state = board.ReadI2C(UB947,0x24,1) while (state & mask) != 27: #27 = 5'b11011 time.sleep(0.01) #10ms delay state = board.ReadI2C(UB947,0x24,1) count = count +1 if count == 10: print "Error: Serializer is not in Normal state" return(1) board.WriteI2C(UB947,0x23,0x0) board.WriteI2C(UB947,0x24,0x0) def initsequence(): board.WriteI2C(UB947,0x03,0xDA) # Set I2C passthrough linked = 0 retry = 0 mask = int('10000000',2) while linked == 0: STS = board.ReadI2C(UB947,0x5A,1) if ((STS & mask) != 0): linked = 1 print "Deserializer Detected" else: time.sleep(0.1) retry = retry + 1 if retry == 10: print "Error: No Deserializer Detected" return() board.WriteI2C(UB948,0x4A,0x01) # Disable OLDI outputs on 948 to prevent screen glitches from appearing during the init process ##### Init A Sequence # Errata #5 and 6 board.WriteI2C(UB947,0x5B,0x03) # Force dual FPD-Link, disable reset on PLL frequency change # Errata #10 board.WriteI2C(UB947,0x16,0x02) # Adjust BCC watchdog timer to minimum # Errata #11 board.WriteI2C(UB947,0x04,0x90) # Prevent AVMUTE for non-HDCP systems state_error = pollstate() # Poll 947 state machine prior to applying init B errata if state_error == 1: return() ##### Init B Sequence # # Errata #2 (only for older non-eFuse devices) # board.WriteI2C(UB947,0x40,0x10) # board.WriteI2C(UB947,0x41,0x4A) # board.WriteI2C(UB947,0x42,0x3F) # board.WriteI2C(UB947,0x41,0x4B) # if StartAmbTemp < 10: # board.WriteI2C(UB947,0x42,0x88) # else: # board.WriteI2C(UB947,0x42,0x89) # board.WriteI2C(UB947,0x41,0x49) # board.WriteI2C(UB947,0x42,0x10) # board.WriteI2C(UB947,0x42,0x00) # board.WriteI2C(UB947,0x40,0x14) # board.WriteI2C(UB947,0x41,0x4A) # board.WriteI2C(UB947,0x42,0x3F) # board.WriteI2C(UB947,0x41,0x4B) # if StartAmbTemp < 10: # board.WriteI2C(UB947,0x42,0x88) # else: # board.WriteI2C(UB947,0x42,0x89) # board.WriteI2C(UB947,0x41,0x49) # board.WriteI2C(UB947,0x42,0x10) # board.WriteI2C(UB947,0x42,0x00) # Errata #3 board.WriteI2C(UB947,0x40,0x10) board.WriteI2C(UB947,0x41,0x49) board.WriteI2C(UB947,0x42,0x16) board.WriteI2C(UB947,0x41,0x47) board.WriteI2C(UB947,0x42,0x20) board.WriteI2C(UB947,0x42,0xA0) board.WriteI2C(UB947,0x42,0x20) board.WriteI2C(UB947,0x42,0x00) board.WriteI2C(UB947,0x41,0x49) board.WriteI2C(UB947,0x42,0x00) time.sleep(0.01) ##### Timing Confirmation retry = 0 Hconfirm = 0 Vconfirm = 0 while (retry < 3): board.WriteI2C(UB948,0x68,0x08) # Enable PATGEN BIST time.sleep(0.1) # Critical time delay - do not adjust to a shorter value board.WriteI2C(UB948,0x68,0x19) # H active High monitor Hhigh = board.ReadI2C(UB948, 0x69, 1) board.WriteI2C(UB948,0x68,0x09) # H active Low monitor Hlow = board.ReadI2C(UB948, 0x69, 1) board.WriteI2C(UB948,0x68,0x39) # V active High monitor Vhigh = board.ReadI2C(UB948, 0x69, 1) board.WriteI2C(UB948,0x68,0x29) # V active Low monitor Vlow = board.ReadI2C(UB948, 0x69, 1) board.WriteI2C(UB948,0x68,0x00) # Disable PATGEN BIST mask = int('00111111',2) hlowmask = Hlow & mask hhighmask = Hhigh & mask vlowmask = Vlow & mask vhighmask = Vhigh & mask hhighmask = hhighmask << 6 vhighmask = vhighmask << 6 Hactive = hhighmask | hlowmask Vactive = vhighmask | vlowmask if Hactive != Hres: retry = retry + 1 board.WriteI2C(UB947,0x40,0x10) # Reset OLDI PLL board.WriteI2C(UB947,0x41,0x49) board.WriteI2C(UB947,0x42,0x16) board.WriteI2C(UB947,0x41,0x47) board.WriteI2C(UB947,0x42,0x20) board.WriteI2C(UB947,0x42,0xA0) board.WriteI2C(UB947,0x42,0x20) board.WriteI2C(UB947,0x42,0x00) board.WriteI2C(UB947,0x41,0x49) board.WriteI2C(UB947,0x42,0x00) time.sleep(0.1) else: Hconfirm = 1 if Vactive != Vres: retry = retry + 1 board.WriteI2C(UB947,0x40,0x10) # Reset OLDI PLL board.WriteI2C(UB947,0x41,0x49) board.WriteI2C(UB947,0x42,0x16) board.WriteI2C(UB947,0x41,0x47) board.WriteI2C(UB947,0x42,0x20) board.WriteI2C(UB947,0x42,0xA0) board.WriteI2C(UB947,0x42,0x20) board.WriteI2C(UB947,0x42,0x00) board.WriteI2C(UB947,0x41,0x49) board.WriteI2C(UB947,0x42,0x00) time.sleep(0.1) else: Vconfirm = 1 if (Hconfirm == 1) and (Vconfirm == 1): break if (retry > 2): print "Error: Timing confirmation failed. Double check expected video resolution and OLDI video input" return() else: print "Initialization Complete" board.WriteI2C(UB948,0x01,0x01) # Digital reset to restart AEQ time.sleep(0.1) # Allow time for 948 to relock board.WriteI2C(UB948,0x4A,0x00) # Enable OLDI outputs on 948 initsequence()