Using raspberry pi HAT type lcd on orangepi MINI 2

A-P · March 9, 2016

I've been struggling for a while to get raspberry pi HAT type LCD to working. I've been working with loboris images before until recently that I've heard that armbian has cooked a new image for orangepi with newer kernel.

In the description of images it is clearly indicated that the image works with small screen lcds which it seems to be true because there is no error when I want to load a notro module and it successfully loads. I've put lcd configurations in /etc/modules but I was not successful.

this is the parameters I use in /etc/modules

fbtft_device name=flexfb gpios=dc:22,reset:27 speed=48000000
flexfb width=320 height=240 buswidth=8 init=-1,0xCB,0x39,0x2C,0x00,0x34,0x02,-1,0xCF,0x00,0XC1,0X30,-1,0xE8,0x85,0x00,0x78,-1,0xEA,0x00,0x00,-1,0xED,0x64,0x03,0X12,0X81,-1,0xF7,0x20,-1,0xC0,0x23,-1,0xC1,0x10,-1,0xC5,0x3e,0x28,-1,0xC7,0x86,-1,0x36,0x28,-1,0x3A,0x55,-1,0xB1,0x00,0x18,-1,0xB6,0x08,0x82,0x27,-1,0xF2,0x00,-1,0x26,0x01,-1,0xE0,0x0F,0x31,0x2B,0x0C,0x0E,0x08,0x4E,0xF1,0x37,0x07,0x10,0x03,0x0E,0x09,0x00,-1,0XE1,0x00,0x0E,0x14,0x03,0x11,0x07,0x31,0xC1,0x48,0x08,0x0F,0x0C,0x31,0x36,0x0F,-1,0x11,-2,120,-1,0x29,-1,0x2c,-3
ads7846_device model=7846 cs=1 gpio_pendown=17  speed=1000000 keep_vref_on=1 swap_xy=0 pressure_max=255 x_plate_ohms=60 x_min=200 x_max=3900 y_min=200 y_max=3900

the lcd is : SKU ac-tft32-v3.1 that if you google you can get a lot of information.

Can anybody please give me instructions how to get this lcd to working ? It is really important for me.

Igor · March 9, 2016

All those functions are not much tested but drivers should work. I think I read somewhere you need to play a little with spi speed. That is the only hint I can provide at the moment.