Difference between revisions of "Unit IPSTFT19"

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----
 
----
  
−
''To be documented''
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'''IPSTFT19 specific types'''
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
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<code>PIPSTFT19LCD = ^TIPSTFT19LCD;</code>
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<code>TIPSTFT19LCD = record</code>
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<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
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{| class="wikitable" style="font-size: 14px; background: white;"
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|-
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| <code>Signature:LongWord;</code>
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| Signature for entry validation
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|-
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| <code>Rotation:LongWord;</code>
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| Framebuffer rotation (eg FRAMEBUFFER_ROTATION_180)
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|-
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| <code>SPI:PSPIDevice;</code>
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| SPI device for this display
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|-
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| <code>GPIO:PGPIODevice;</code>
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| GPIO device for this display
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|-
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| <code>Framebuffer:PFramebufferDevice;</code>
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| Framebuffer (ST7789) device for this display
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|-
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|}
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</div></div>
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<br />
  
 
=== Public variables ===
 
=== Public variables ===
 
----
 
----
  
−
''To be documented''
+
 
 +
'''IPSTFT19 specific variables'''
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 +
{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
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|-
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| <code>IPSTFT19_SPI_DEVICE:String = 'SPI0';</code>
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| style="width: 40%;"|
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|-
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|}
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{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
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|-
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| <code>IPSTFT19_LCD_CHIPSELECT:Word = SPI_CS_0;</code>
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| style="width: 40%;"|
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|-
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|}
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{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
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|-
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| <code>IPSTFT19_BL_PWM_ENABLE:LongBool = True;</code>
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| style="width: 40%;"|
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|-
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|}
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<br />
  
 
=== Function declarations ===
 
=== Function declarations ===
 
----
 
----
  
−
''To be documented''
 
  
 +
'''Initialization functions'''
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
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<pre style="border: 0; padding-bottom:0px;">procedure IPSTFT19Init;</pre>
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<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Initialize the IPSTFT19 unit and parameters</div>
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<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
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{| class="wikitable" style="font-size: 14px; background: white;"
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|-
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! Note
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| Called only during system startup
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|-
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|}
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</div></div>
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<br />
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
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<pre style="border: 0; padding-bottom:0px;">function IPSTFT19Start(Rotation:LongWord; const Device:String; DisplaySelect:word):THandle;</pre>
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<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Start the IPSTFT19 driver and Framebuffer device associated with the display</div>
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<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
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{| class="wikitable" style="font-size: 14px; background: white;"
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|-
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! Rotation
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| The rotation of the display (eg FRAMEBUFFER_ROTATION_180)
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|-
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! Device
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| The SPI device that the ST7789 device is connected to
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|-
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! DisplaySelect
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| The SPI chip select of the ST7789 LCD controller
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|-
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! Return
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| The handle of the IPSTFT19 on success or INVALID_HANDLE_VALUE on failure
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|-
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! Note
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| This function will be called during startup if the parameter IPSTFT19_AUTOSTART is True. Can be called multiple times to support more than one IPSTFT LCD display.
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|-
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|}
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</div></div>
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<br />
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
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<pre style="border: 0; padding-bottom:0px;">function IPSTFT19Stop(Handle:THandle):Boolean;</pre>
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<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Stop the IPSTFT19 driver and Framebuffer device associated with the display</div>
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<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
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{| class="wikitable" style="font-size: 14px; background: white;"
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|-
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! Handle
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| The handle of the IPSTFT19 or INVALID_HANDLE_VALUE for the default display
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|-
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! Return
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| True if completed or False on failure
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|-
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|}
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</div></div>
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<br />
  
 
Return to [[Unit_Reference|Unit Reference]]
 
Return to [[Unit_Reference|Unit Reference]]

Latest revision as of 05:16, 14 November 2023

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Description

Adafruit 1.9" 320x170 Color IPS TFT Display LCD Driver unit

Adafruit 1.9" 320x170 Color IPS TFT display has 320x170 16-bit full-color pixels and is an IPS display, so the color looks great up to 80 degrees off-axis in any direction.

The TFT driver (Sitronix ST7789) is very similar to the popular ST7735.

Details:

ST7789

Width: 170 Height: 320

SPI Mode: 0 SPI Frequency: 42000000 SPI Chip Select: SPI_CS_0

DC GPIO: GPIO_PIN_25 (Pull: GPIO_PULL_NONE) RST GPIO: GPIO_PIN_27 (Pull: GPIO_PULL_NONE)

Backlight GPIO: GPIO_PIN_18 (GPIO / PWM)

Constants


[Expand]
IPSTFT19 specific constants IPSTFT19_*


[Expand]
IPSTFT19 GPIO IPSTFT19_LCD_*


Type definitions


IPSTFT19 specific types

[Expand]

PIPSTFT19LCD = ^TIPSTFT19LCD;

TIPSTFT19LCD = record


Public variables


IPSTFT19 specific variables

IPSTFT19_SPI_DEVICE:String = 'SPI0';
IPSTFT19_LCD_CHIPSELECT:Word = SPI_CS_0;
IPSTFT19_BL_PWM_ENABLE:LongBool = True;


Function declarations


Initialization functions

[Expand] 
procedure IPSTFT19Init;
Description: Initialize the IPSTFT19 unit and parameters


[Expand] 
function IPSTFT19Start(Rotation:LongWord; const Device:String; DisplaySelect:word):THandle;
Description: Start the IPSTFT19 driver and Framebuffer device associated with the display


[Expand] 
function IPSTFT19Stop(Handle:THandle):Boolean;
Description: Stop the IPSTFT19 driver and Framebuffer device associated with the display


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