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litesom:devicetree:lcd [2017/04/30 09:44] filug |
litesom:devicetree:lcd [2021/05/10 13:40] (current) kateryna.kozakova |
====== liteSOM and LCD display ====== | ====== liteSOM and LCD display ====== |
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| <well> |
| {{:github-mark-32px.png?nolink |}} |
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| Example available on [[https://github.com/grinn-pub/examples|GitHub]]. |
| Check [[https://github.com/grinn-pub/examples/blob/master/configs/grinn_liteboard_lcd_res_defconfig|liteboard LCD + touchscreen]]. |
| </well> |
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<columns 100% 50% - -> | <columns 100% 50% - -> |
* ''PWM'' - <tooltip title="to control LCD display backlight">Pulse Width Modulation</tooltip>. | * ''PWM'' - <tooltip title="to control LCD display backlight">Pulse Width Modulation</tooltip>. |
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Below you can see how to configure [[litesom:liteboard]] to support [[modules:lcd]] module. | Below you can see how to configure [[litesom:liteboard]] to support [[devices:lcd]] module. |
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<alert type="info">Complete example for [[litesom:liteboard]] and [[modules:lcd]] you can find on our [[https://github.com/grinn-pub/examples|GitHub examples repository]].</alert> | <alert type="info">Complete example for [[litesom:liteboard]] and [[devices:lcd]] you can find on our [[https://github.com/grinn-pub/examples|GitHub examples repository]].</alert> |
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On [[evm:lcd]] we are using [[https://riverdi.com/product/rvt7-0a800480tnwr00/|RVT7.0A800480TNWR00]] TFT display produced by [[https://riverdi.com/|Riverdi]]. Below you can find short details about this device: | On [[evm:lcd]] we are using [[https://riverdi.com/product/rvt7-0a800480tnwr00/|RVT7.0A800480TNWR00]] TFT display produced by [[https://riverdi.com/|Riverdi]]. Below you can find short details about this device: |
* touchscreen: resistive. | * touchscreen: resistive. |
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FIXME LCD part number | |
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</columns> | </columns> |
<newcolumn> | <newcolumn> |
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On [[litesom:liteboard]] you can find dedicated LCD backlight boot converter (see [[http://www.ti.com/product/TPS61042|TPS61042]]) controlled by [[:litesom]] via ''PWM2 output'' pin. | On [[litesom:liteboard]] you can find dedicated LCD backlight boot converter (see [[https://www.ti.com/product/TPS61042|TPS61042]]) controlled by [[:litesom]] via ''PWM2 output'' pin. |
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{{ :litesom:devicetree:litesom_backlight_driver.png?500 |}} | {{ :litesom:devicetree:litesom_backlight_driver.png?500 |}} |
</columns> | </columns> |
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FIXME Show how to test this setup. | |