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I'd like to learn about interfacing a TFT LCD with a microcontroller via the MIPI DSI protocol and writing a program for it.

Both have suitable number of pins, some microcontrollers support MIPI DSI while others don't.

Where can I start and what should I do?

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  • \$\begingroup\$ Start by using an SoC which supports MIPI DSI (which is probably a bit more than a “microcontroller”). Note that there are variants of MIPI DSI, especially regarding the number of channels. \$\endgroup\$
    – jcaron
    Commented Oct 18, 2020 at 20:58

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MIPI-DSI is a specialized interface intended to drive displays (Display Serial Interface).

It has low-voltage high-speed differential signaling with a low power mode where the differential signals are used in common-mode.

Very few conventional microcontrollers support MIPI-DSI and even fewer support bidirectional capability.

The equivalent interface for input of data is MIPI-CSI (Camera Serial Interface).

The extremely high rate would also be an issue for most processors, speeds of 500Mbps to 2GBps per lane are common.

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  • \$\begingroup\$ So MIPI can't be used with microcontrollers then? \$\endgroup\$ Commented Oct 19, 2020 at 7:05
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    \$\begingroup\$ @akshaykumark - Not what I would call a microcontroller no. Large SOCs, such as in cell phones, use MIPI for communication with the display and camera. I don't know of any smaller devices. \$\endgroup\$ Commented Oct 19, 2020 at 14:07
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ST Microelectronics makes an eval board for the STM32F469 with a bunch of fun peripherals, including a display and touchscreen. It's not terribly expensive, either, depending on your means.

https://www.st.com/content/st_com/en/products/evaluation-tools/product-evaluation-tools/mcu-mpu-eval-tools/stm32-mcu-mpu-eval-tools/stm32-discovery-kits/32f469idiscovery.html

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  • \$\begingroup\$ This is what I had. My apologies if I had provided too little information. \$\endgroup\$ Commented Oct 22, 2020 at 14:54
  • \$\begingroup\$ So are you looking for software guidance then? \$\endgroup\$ Commented Oct 22, 2020 at 16:42
  • \$\begingroup\$ Yeah, I don't know anything even about RGB or LVDS interfacing. I can only do SPI and dot matrix displays. \$\endgroup\$ Commented Oct 22, 2020 at 17:10
  • \$\begingroup\$ I can interface the pins accordingly, that's as much the hardware I can do.. \$\endgroup\$ Commented Oct 22, 2020 at 17:11

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