IoT/LCD のバックアップ(No.12)

LCD †

LCDS & DISPLAYS - Adafruit

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LCDコントローラ †

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Linux †

Linux Fb Documentation

SPIのTFTをRaspBerryPiのコンソールとして使う
ILI9325をRaspBerryPiのコンソールとして使う ... flexfb の使い方が書かれている
パラレルのTFTをRaspberryPiのコンソールとして使う

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fbtft †

notro/fbtft
- Wiki
  - LCD pins
  - LCD Modules

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fbtft_device †

fbtft_device のパラメタ

# modinfo fbtft_device
    :
parm:           name:Devicename (required). name=list => list all supported devices. (charp)
parm:           rotate:Angle to rotate display counter clockwise: 0, 90, 180, 270 (uint)
parm:           busnum:SPI bus number (default=0) (uint)
parm:           cs:SPI chip select (default=0) (uint)
parm:           speed:SPI speed (override device default) (uint)
parm:           mode:SPI mode (override device default) (int)
parm:           gpios:List of gpios. Comma separated with the form: reset:23,dc:24 (when overriding the default, all gpios must be specified) (charp)
parm:           fps:Frames per second (override driver default) (uint)
parm:           gamma:String representation of Gamma Curve(s). Driver specific. (charp)
parm:           txbuflen:txbuflen (override driver default) (int)
parm:           bgr:BGR bit (supported by some drivers). (int)
parm:           startbyte:Sets the Start byte used by some SPI displays. (uint)
parm:           custom:Add a custom display device. Use speed= argument to make it a SPI device, else platform_device (bool)
parm:           width:Display width, used with the custom argument (uint)
parm:           height:Display height, used with the custom argument (uint)
parm:           buswidth:Display bus width, used with the custom argument (uint)
parm:           init:Init sequence, used with the custom argument (array of int)
parm:           debug:level: 0-7 (the remaining 29 bits is for advanced usage) (ulong)
parm:           verbose:0 silent, >0 show gpios, >1 show devices, >2 show devices before (default=3) (uint)

登録済みデバイス

# modprobe fbtft_device name=list
[  209.147292] fbtft_device:  SPI devices registered:
[  209.152122] fbtft_device:      spidev spi3.0 5000kHz 8 bits mode=0x00
[  209.158659] fbtft_device:  'fb' Platform devices registered:
[  209.164418] fbtft_device:  Supported displays:
[  209.168902] fbtft_device:      adafruit18
[  209.172920] fbtft_device:      adafruit18_green
[  209.177478] fbtft_device:      adafruit22
[  209.181493] fbtft_device:      adafruit22a
[  209.185591] fbtft_device:      adafruit28
[  209.189626] fbtft_device:      adafruit13m
[  209.193725] fbtft_device:      agm1264k-fl
[  209.197864] fbtft_device:      dogs102
[  209.201619] fbtft_device:      er_tftm050_2
[  209.205804] fbtft_device:      er_tftm070_5
[  209.210017] fbtft_device:      flexfb
[  209.213683] fbtft_device:      flexpfb
[  209.217462] fbtft_device:      freetronicsoled128
[  209.222168] fbtft_device:      hx8353d
[  209.225921] fbtft_device:      hy28a
[  209.229520] fbtft_device:      hy28b
[  209.233099] fbtft_device:      ili9481
[  209.236868] fbtft_device:      itdb24
[  209.240533] fbtft_device:      itdb28
[  209.244198] fbtft_device:      itdb28_spi
[  209.248228] fbtft_device:      mi0283qt-2
[  209.252240] fbtft_device:      mi0283qt-9a
[  209.256340] fbtft_device:      mi0283qt-v2
[  209.260460] fbtft_device:      nokia3310
[  209.264385] fbtft_device:      nokia3310a
[  209.268420] fbtft_device:      piscreen
[  209.272259] fbtft_device:      pitft
[  209.275837] fbtft_device:      pioled
[  209.279521] fbtft_device:      rpi-display
[  209.283621] fbtft_device:      s6d02a1
[  209.287390] fbtft_device:      sainsmart18
[  209.291489] fbtft_device:      sainsmart32
[  209.295589] fbtft_device:      sainsmart32_fast
[  209.300143] fbtft_device:      sainsmart32_latched
[  209.304938] fbtft_device:      sainsmart32_spi
[  209.309401] fbtft_device:      spidev
[  209.313066] fbtft_device:      ssd1331
[  209.316837] fbtft_device:      tinylcd35
[  209.320762] fbtft_device:      tm022hdh26
[  209.324773] fbtft_device:      tontec35_9481
[  209.329064] fbtft_device:      tontec35_9486
[  209.333337] fbtft_device:      upd161704
[  209.337279] fbtft_device:      waveshare32b
[  209.341467] fbtft_device:      waveshare22

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flexfb †

ILI9325をRaspBerryPiのコンソールとして使う

# modinfo flexfb
    :
parm:           chip:LCD controller (charp)
parm:           width:Display width (uint)
parm:           height:Display height (uint)
parm:           init:Init sequence (array of int)
parm:           setaddrwin:Which set_addr_win() implementation to use (uint)
parm:           buswidth:Width of databus (default: 8) (uint)
parm:           regwidth:Width of controller register (default: 8) (uint)
parm:           nobacklight:Turn off backlight functionality. (bool)
parm:           latched:Use with latched 16-bit databus (bool)

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実行例 †

横長画面 90度回転 96MHz駆動で 2倍速

$ sudo modprobe fbtft_device name=adafruit28 rotate=90 speed=96000000

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トラブルシューティング †

display not supported

gpio_request_one(****) failed
SSD1289 problem #196

fbtft_device がGPIOの設定をする処理中でエラーが発生している
別のところでGPIOを設定している場合は削除（コメントアウト）する

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fbterm †

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jfbterm †

CUI（コンソール）を日本語化する方法

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con2fbmap †

LCD-8000U を Ubuntu 10.04 で使う

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手動登録 †

Linux Kernel 2.2と2.4 のフレームバッファ

/dev/fb0 が存在していない場合，フレームバッファにアクセスできるようにノードを作成
```
# mknod -m 666 /dev/fb0 u 29 0
```
- メジャー番号は 29、マイナー番号は 0 からとなっている

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Arduino †

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u8glib †

u8glibでOLEDを使う part1 ... SPI編
u8glibでOLEDを使う part2 ... I2C編

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AVR †

■ AVRマイコンにカラーLCDを接続 ■

IoT/LCD のバックアップ(No.12)

LCD †

LCDコントローラ †

TFT・OLED †

ILI9341 †

S1D13700 †

SSD13xx †

ST7735 †

ST7789 †

GLCD †

UC1701 †

ST7565 †

ST7567 †

ST7920 †

Linux †

fbtft †

fbtft_device †

flexfb †

実行例 †

トラブルシューティング †

fbterm †

jfbterm †

con2fbmap †

手動登録 †

Arduino †

u8glib †

AVR †