Connecting DSI displays is not a totally trivial task.
The Pi connector provides the data signals (MIPI_D0[PN], MIPI_D1[PN], and MIPI_CL[PN]), but does not handle all the power supplies that a display may want, nor directly any reset signals.
TE is tear enable which isn't relevant for most displays when run in DSI video mode (not command mode).
VCI on your panel wants to be 3.3V, but I would suggest you use your own 5V to 3.3V regulator rather than trying to use the 3.3V supply on the display connector as you probably want more power than is available.
IOVCC needs to be 1.65 - 3.3V. You could use the same 3.3V rail as for VCI.
LEDA and LEDK need to be connected to a suitable LED driver - 18.6V at 20mA typically according to your datasheet. If you want backlight control, then you'll want some form of PWM control on it.
ILI9806E is a generic panel driver chip. Whilst there is a driver for it at https://github.com/raspberrypi/linux/bl ... ili9806e.c, that is using it in DPI mode with SPI configuration. As you can see from that driver, there are a load of registers in the IC that need to be configured. There is the added frustration that there is no feedback mechanism - get it wrong and you just get a black screen.
The Pi connector provides the data signals (MIPI_D0[PN], MIPI_D1[PN], and MIPI_CL[PN]), but does not handle all the power supplies that a display may want, nor directly any reset signals.
TE is tear enable which isn't relevant for most displays when run in DSI video mode (not command mode).
VCI on your panel wants to be 3.3V, but I would suggest you use your own 5V to 3.3V regulator rather than trying to use the 3.3V supply on the display connector as you probably want more power than is available.
IOVCC needs to be 1.65 - 3.3V. You could use the same 3.3V rail as for VCI.
LEDA and LEDK need to be connected to a suitable LED driver - 18.6V at 20mA typically according to your datasheet. If you want backlight control, then you'll want some form of PWM control on it.
ILI9806E is a generic panel driver chip. Whilst there is a driver for it at https://github.com/raspberrypi/linux/bl ... ili9806e.c, that is using it in DPI mode with SPI configuration. As you can see from that driver, there are a load of registers in the IC that need to be configured. There is the added frustration that there is no feedback mechanism - get it wrong and you just get a black screen.
Statistics: Posted by 6by9 — Wed Jul 03, 2024 7:12 am