""" TI Confidential - NDA Restrictions Copyright 2020 Texas Instruments Incorporated. All rights reserved. IMPORTANT: Your use of this Software is limited to those specific rights granted under the terms of a software license agreement between the user who downloaded the software, his/her employer (which must be your employer) and Texas Instruments Incorporated (the "License"). You may not use this Software unless you agree to abide by the terms of the License. The License limits your use, and you acknowledge, that the Software may not be modified, copied or distributed unless embedded on a Texas Instruments microcontroller which is integrated into your product. Other than for the foregoing purpose, you may not use, reproduce, copy, prepare derivative works of, modify, distribute, perform, display or sell this Software and/or its documentation for any purpose. YOU FURTHER ACKNOWLEDGE AND AGREE THAT THE SOFTWARE AND DOCUMENTATION ARE PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, TITLE, NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL TEXAS INSTRUMENTS OR ITS LICENSORS BE LIABLE OR OBLIGATED UNDER CONTRACT, NEGLIGENCE, STRICT LIABILITY, CONTRIBUTION, BREACH OF WARRANTY, OR OTHER LEGAL EQUITABLE THEORY ANY DIRECT OR INDIRECT DAMAGES OR EXPENSES INCLUDING BUT NOT LIMITED TO ANY INCIDENTAL, SPECIAL, INDIRECT, PUNITIVE OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA, COST OF PROCUREMENT OF SUBSTITUTE GOODS, TECHNOLOGY, SERVICES, OR ANY CLAIMS BY THIRD PARTIES (INCLUDING BUT NOT LIMITED TO ANY DEFENSE THEREOF), OR OTHER SIMILAR COSTS. Should you have any questions regarding your right to use this Software, contact Texas Instruments Incorporated at www.TI.com. """ ############################ # DS90UB947-Q1 Init Code Example v1.0 # 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 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()