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notro / fbtft

Linux Framebuffer drivers for small TFT LCD display modules. Development has moved to https://git.kernel.org/cgit/linux/kernel/git/gregkh/staging.git/tree/drivers/staging/fbtft?h=staging-testing
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ST7789V rotate display 0 degree 90 degree 180 degree 270 degree #523

Closed DRAgon734465502 closed 3 years ago

DRAgon734465502 commented 6 years ago

I get this ST7789V LCD The datasheet is here: http://tr1p1ea.net/files/downloads/hardware/lcd/SF-TC154B-8377A-N.pdf

I got the display from here: https://www.alibaba.com/product-detail/1-54-Inch-Programmable-Micro-Small_60650201984.html?spm=a2700.7724838.2017115.34.1c105d9cDJLadB

and working with the below init code. modprobe fbtft_device name=flexfb speed=32000000 gpios=reset:25,dc:24 modprobe flexfb setaddrwin=0 width=240 height=240 init=-1,0x11,-2,120,-1,0x36,0x00,-1,0x3A,0x05,-1,0xB2,0x0C,0x0C,0x00,0x33,0x33,-1,0xB7,0x35,-1,0xBB,0x1A,-1,0xC0,0x2C,-1,0xC2,0x01,-1,0xC3,0x0B,-1,0xC4,0x20,-1,0xC6,0x0F,-1,0xD0,0xA4,0xA1,-1,0x21,-1,0xE0,0x00,0x19,0x1E,0x0A,0x09,0x15,0x3D,0x44,0x51,0x12,0x03,0x00,0x3F,0x3F,-1,0xE1,0x00,0x18,0x1E,0x0A,0x09,0x25,0x3F,0x43,0x52,0x33,0x03,0x00,0x3F,0x3F,-1,0x29,-3

But have a question, set (0 degree) like this : -1,0x36,0x00,-1, set (90 degree) like this : -1,0x36,0x60,-1,

But I can not find how to set 180 degree and 270 degree I set -1,0x36,0xa0,-1, or -1,0x36,0xc0,-1, just get like this picture image

DRAgon734465502 commented 6 years ago

I do not why , when I set D7-MY to 1. the display will lose One-third area

1

makermelissa commented 4 years ago

I know this is old, but I solved it by adding the following init code to the end of 0x36,0xa0,-1, for 180 and 270 degrees: 0x37,0x00,0x50,-1

So it ends up being: 0x36,0xa0,-1,0x37,0x00,0x50,-1,.

github-actions[bot] commented 3 years ago

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