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DS90UB954-Q1: DS90UB954-Q1

Risto Hedman
Expert 1770 points

Part Number: DS90UB954-Q1

Hi,

We're using DS90UB954-Q1  in our custom baseboard and right now writing interface code (in c/c++). i2c connection has been established and register r/w works fine  SlaveID[n] / SlaveAlias[n] seems not to work properly - or at least Debian 'i2cdetect ' can not detect them - whilst is detecting   e.g. SER_ALIAS_ID. Now we're searching any 'debug help' to solve interfacing issues. 

Google found me one day a thread from TI's forum saying that there excists a python code to interface DS90UB954/953, could it be possible to get that code somewhere? Any 'code' help from any source would be welcome. 

There seems to be also some linux- drivers available but as I understand they are not supported by TI?

Best Regards,

ristoH

  • 0
    TI__Mastermind 29430 points

    Hi Risto,

    I've attached an example script for setting up 953 Patgen (from 954 side) to send a pattern to 954 for testing. You can also find example initialization scripts in the DS90UB96x EVM user guide section 1.10.10 starting on page 22, which I will also link below for you. 

    Since you are having issues with the slaveID/Alias being recognized, I would recommend verifying that I2C pass-through is enabled (register 0x58).

    You are correct TI does not provide drivers.

    User Guide 

    # Patgen YUV ColorBar 1920x1080p30 on 953/954
# Version 0.92

import time

# 953 config
runTime = 3

Alias953 = 0x18
DES954 = 0x60


# Reset 954
board.WriteI2C(DES954, 0x01, 0x01)
time.sleep(1.0)
# CSI enable , continuous clock, 4 lanes
board.WriteI2C(DES954, 0x33, 0x03)
time.sleep(0.1)
# Set CSI_TX_SPEED to select 800Mbps
board.WriteI2C(DES954, 0x1F, 0x02)
time.sleep(0.1)
# Port Control
board.WriteI2C(DES954, 0x0C, 0x83)
time.sleep(0.1)
# Port Selection
board.WriteI2C(DES954, 0x4C, 0x01)
time.sleep(0.1)
# set alias
board.WriteI2C(DES954, 0x5C, 0x18)
time.sleep(0.1)
board.WriteI2C(DES954, 0x20,0x00) # forwarding of all RX to CSI0
time.sleep(0.1)
if (board.ReadI2C(Alias953, 0x00, 0x01) != 0x30):
	print "953 ID Error"
else:
	print "953 ID Ok"

# Reset 953
board.WriteI2C(Alias953, 0x01, 0x01)
time.sleep(1.0)	
# enable pat gen
board.WriteI2C(Alias953, 0xB0, 0x00)
board.WriteI2C(Alias953, 0xB1, 0x01)
board.WriteI2C(Alias953, 0xB2, 0x01) #enable pattern generator

board.WriteI2C(Alias953, 0xB1, 0x02)
board.WriteI2C(Alias953, 0xB2, 0x33) #fixed color pattern, 8 color bars, block size of 5

board.WriteI2C(Alias953, 0xB1, 0x03)
board.WriteI2C(Alias953, 0xB2, 0x1E) #CSI Data Identifier (0x24 = RGB888, 0x2C = RAW12, 0x2B = RAW10)

board.WriteI2C(Alias953, 0xB1, 0x04)
board.WriteI2C(Alias953, 0xB2, 0x0f) #line size (15:8)

board.WriteI2C(Alias953, 0xB1, 0x05)
board.WriteI2C(Alias953, 0xB2, 0x00) #line size (7:0)

board.WriteI2C(Alias953, 0xB1, 0x06)
board.WriteI2C(Alias953, 0xB2, 0x01) #bar size (15:8)

board.WriteI2C(Alias953, 0xB1, 0x07)
board.WriteI2C(Alias953, 0xB2, 0xe0) #bar size (7:0)

board.WriteI2C(Alias953, 0xB1, 0x08)
board.WriteI2C(Alias953, 0xB2, 0x04) #active lines per frame (15:8)

board.WriteI2C(Alias953, 0xB1, 0x09)
board.WriteI2C(Alias953, 0xB2, 0x38) #active lines per frame (7:0)

board.WriteI2C(Alias953, 0xB1, 0x0a)
board.WriteI2C(Alias953, 0xB2, 0x04) #total lines per frame (15:8)

board.WriteI2C(Alias953, 0xB1, 0x0b)
board.WriteI2C(Alias953, 0xB2, 0x65) #total lines per frame (7:0)

board.WriteI2C(Alias953, 0xB1, 0x0c)
board.WriteI2C(Alias953, 0xB2, 0x0b) #line period (15:8)

board.WriteI2C(Alias953, 0xB1, 0x0d)
board.WriteI2C(Alias953, 0xB2, 0x93) #line period (7:0)

board.WriteI2C(Alias953, 0xB1, 0x0e)
board.WriteI2C(Alias953, 0xB2, 0x21) #vertical back porch

board.WriteI2C(Alias953, 0xB1, 0x0f)
board.WriteI2C(Alias953, 0xB2, 0x0a) #vertical front porch

board.WriteI2C(Alias953, 0xB1, 0x10) 
board.WriteI2C(Alias953, 0xB2, 0x00) #1st byte of fixed color

board.WriteI2C(Alias953, 0xB1, 0x11)
board.WriteI2C(Alias953, 0xB2, 0x00) #2nd byte of fixed color

board.WriteI2C(Alias953, 0xB1, 0x12)
board.WriteI2C(Alias953, 0xB2, 0xFF) #3rd byte of fixed color

# board.WriteI2C(0xB1, 0x13)
# board.WriteI2C(0xB2, 0xff) #4th byte of fixed color

# board.WriteI2C(0xB1, 0x14)
# board.WriteI2C(0xB2, 0xff) #5th byte of fixed color

# board.WriteI2C(0xB1, 0x15)
# board.WriteI2C(0xB2, 0x00) #6th byte of fixed color

# board.WriteI2C(0xB1, 0x16)
# board.WriteI2C(0xB2, 0x00) #7th byte of fixed color

# board.WriteI2C(0xB1, 0x17)
# board.WriteI2C(0xB2, 0x0f) #8th byte of fixed color

# board.WriteI2C(0xB1, 0x18)
# board.WriteI2C(0xB2, 0xf0) #9th byte of fixed color

# board.WriteI2C(0xB1, 0x19)
# board.WriteI2C(0xB2, 0x00) #10th byte of fixed color

# board.WriteI2C(0xB1, 0x1A)
# board.WriteI2C(0xB2, 0x00) #11th byte of fixed color

# board.WriteI2C(0xB1, 0x1B)
# board.WriteI2C(0xB1, 0x3f) #12th byte of fixed color

# board.WriteI2C(0xB1, 0x1C)
# board.WriteI2C(0xB2, 0xc0) #13th byte of fixed color

# board.WriteI2C(0xB1, 0x1D)
# board.WriteI2C(0xB2, 0x00) #14th byte of fixed color

# board.WriteI2C(0xB1, 0x1E)
# board.WriteI2C(0xB2, 0x00) #15th byte of fixed color

# board.WriteI2C(0xB1, 0x1F)
# board.WriteI2C(0xB2, 0x00) #16th byte of fixed color


    Regards,

    Darrah