12 063
правки
TFT01-2.2SP/en: различия между версиями
Новая страница: «==Description== Screen http://www.elecfreaks.com/store/22%C3%82%E2%80%99-tft-lcd-tft0122sp-p-672.html Available in large quantities on ebay and aliexpress, see f…»
(Новая страница: «==Connection to Wiren Board controller== The screen requires to connect 0, +3.3 V, 4 SPI lines, d/C line, RESET line. The led input must be supplied +3.3 V to tur…») |
(Новая страница: «==Description== Screen http://www.elecfreaks.com/store/22%C3%82%E2%80%99-tft-lcd-tft0122sp-p-672.html Available in large quantities on ebay and aliexpress, see f…») |
||
| (не показаны 2 промежуточные версии этого же участника) | |||
| Строка 1: | Строка 1: | ||
<languages/> | <languages/> | ||
== | ==Description== | ||
Screen http://www.elecfreaks.com/store/22%C3%82%E2%80%99-tft-lcd-tft0122sp-p-672.html | |||
Available in large quantities on ebay and aliexpress, see for example [http://www.aliexpress.com/item/Brand-New-2-2-Serial-SPI-TFT-Color-LCD-Module-Display-240X320-w-PCB-Adpater/1149927865.html] | |||
http://www.elecfreaks.com/store/images/2.2SP_A.JPG | http://www.elecfreaks.com/store/images/2.2SP_A.JPG | ||
| Строка 14: | Строка 14: | ||
The screen requires to connect 0, +3.3 V, 4 SPI lines, d/C line, RESET line. The led input must be supplied +3.3 V to turn on the backlight. | The screen requires to connect 0, +3.3 V, 4 SPI lines, d/C line, RESET line. The led input must be supplied +3.3 V to turn on the backlight. | ||
It is most convenient to connect the screen to the UEXT2 connector, and the software I2C lines are configured in GPIO mode. | |||
=== | ===Settings=== | ||
Make sure that the dts file (/boot/dts/) contains imx233-wirenboard28.dts is not activated software I2C on UEXT2. | |||
Убедитесь, что линия CS UEXT2 (GPIO 91, 25 @ CON2, UEXT2 CS/GPIO) настроена для использования в качестве chip-select SPI master'а и при этом не занята под другие драйвера (включая spidev). | Убедитесь, что линия CS UEXT2 (GPIO 91, 25 @ CON2, UEXT2 CS/GPIO) настроена для использования в качестве chip-select SPI master'а и при этом не занята под другие драйвера (включая spidev). | ||