From several weeks ago i tried to turn on tft lcd by fbtft drivers but failed.|
Anyone trying this?
I confirmed that the spi is working by testing mcp3008 adc on the raspbian image.
I am using hy28b and waveshare22, each are 2.8in and 2.2in tft lcds for raspberrypi.
Both fbtft drivers use 2 spi devices, one is for tft lcd and the other for touch controller,
and 2 or 3 gpio ports for reset, dc, led, etc.
At first I compiled kernel and fbtft driver modules and installed on bananapi.
After rebooting, I did insmod spi-sun7i, fbtft, fbtft_device modules.
Then I tried to start X window through the following command as you know.
$ FRAMEBUFFER=/dev/fb2 startx
But the screen was still blank, no change. Both devices failed. :-(