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DLPDLCR2000EVM: Change default of input source

Joselito Go
Expert 3690 points
Part Number: DLPDLCR2000EVM
Other Parts Discussed in Thread: DLPC2607

Hi Experts,

Good day.

The customer has a DLPC2607 and connects it to raspberry pi 4.
Because the default input source of DLP is Splash screen, They should set the input source to the parallel interface, by this i2c code, in every boot:
" I2cset -y 11 0x1b 0x0b 0x00 0x00 0x00 0x00 i "
And it works perfectly.
-The question is how do change the default of the input source?
#Programmers guide (dlpu013a.pdf):
To change the input source, use of second bit at i2c address 0x0B, flash 0x0000000B.
Maybe it's the answer, but I don't know how to use flash 0x0000000B.
Should I run this?
" I2cset -y 11 0x1b 0x0000000b 0x00 0x00 0x00 0x00 i "

Please advise.

Regards,

Josel

  • 0
    TI__Expert 3905 points

    Hello Josel,

    Thank you for the query. Our team will get back to you with an answer by early next week.

    Best,

    Maxine

  • 0 in reply to Maxine Cabrasawan
    TI__Expert 3905 points

    Hello Josel,

    Before flash can be used, several I2C commands must be sent to configure the flash. Have the commands for Flash Interface Setup Protocol and Flash Interface Modes of Operation been successfully executed? The steps can be found on page 9 and 10 of the DLPC2607 Programmer's Guide. 

    As an alternative to flash, the method that we recommend is such that the command to set input to external video is immediately sent to the DLPC2607 at the moment when communication is established with the Raspberry Pi. This way, the splash image should not be seen.

    Best, 

    Maxine