This is the first time I’m working with MIPI DSI so please forgive what may be “stupid” questions.
I would like to enable two display’s on the TX1, one is the normal HDMI via a standard HDMI connector and the other is this below full HD MIPI DSI panel:
My first question is: Does TX “L4T v.24” support dual display with HDMI and DSI panel?
The second question is if I have done the pin out correctly below as I’m guessing DSI0 and DSI1 can be combined to 4-lane?
JETSON DISPLAY PANEL:
G34 DSI0_CLK- -> DSI_CLK- on panel
G33 DSI0_CLK+ -> DSI_CLK+
F35 DSI0_D0- -> DSI_D0-
F34 DSI0_D0+ -> DSI_D0+
H33 DSI0_D1- -> DSI_D1-
H32 DSI0_D1+ -> DSI_D1+
C35 DSI1_D0- -> DSI_D2-
C34 DSI1_D0+ -> DSI_D2+
E33 DSI1_D1- -> DSI_D3-
E32 DSI1_D1+ -> DSI_D3+
A25 LCD_TE -> (TE) TEARING OUTPUT
LCD_VDD_EN -> RESET
I’m a bit at a loss in regards to the LCD’s pin called “LEDPWM” because in section 7-2 page 10 they describe that LED+/- are just that (LED’s in series with no attach to a driver) so I’m guessingthat LEDPWM is an output from the panel to control an external LED driver and since I would rather use the JETSON LCD0_BKLT_PWM output my plan was to totally omit the lcd LEDPWM signal and use a LED driver controlled from jetson instead.
On page 14 there’s a table of commands that needs to be send to the LCD after power on there’s two different DSI data types (Generic and DCS) where exactly in the Jetson do I put these commands??
on Page 15 there’s likewise two commands that needs to be executed during power off of the panel - where would I insert these?
On other displays i have worked with you had to specify a pixel clock, sync signals, porch etc… does MIPI somehow by magic auto detect this information from the LCD (much like EDID on HDMI)? - I ask because the datasheet doesn’t mention anything at all
Is there any problems in setting the Jetson DSI0/1 to work with this 1080p60 panel?
Would it be possible to connect a DSI to HDMI bridge chip to the DSI2/3 port and mirrorthe image of either the normal native jetson HDMI port or the DSI0/1 LCD panel? (I don’t need 3 individual LCD’s but rather 2 different outputs and a third mirrored one if possible)