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Fix ILI9341 display driver with SPI connector
and provide a demo for it.
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| Original file line number | Diff line number | Diff line change |
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| # LCD demo | ||
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| This example demonstrates working with the LCD using the | ||
| HAL.Bitmap.Bitmap_Buffer interface. | ||
| Colorful rectangles are displayed on the screen, and their | ||
| colors change based on the X and Y coordinates. | ||
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| For this demo, you need an LCD, (which is usually sold as | ||
| part of the STM32 F4VE board kit) connected as SPI: | ||
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| * PA1 LCD RESET | ||
| * PA2 LCD D/C | ||
| * PA3 LCD BKL | ||
| * PA4 SPI1 NSS | ||
| * PA5 SPI1 SCK | ||
| * PA6 SPI1 MISO | ||
| * PA7 SPI1 MOSI | ||
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| with "stm32_f4ve_full_spi.gpr"; | ||
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| project LCD_SPI is | ||
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| for Runtime ("Ada") use STM32_f4VE_Full'Runtime ("Ada"); | ||
| for Target use "arm-eabi"; | ||
| for Main use ("main.adb"); | ||
| for Languages use ("Ada"); | ||
| for Source_Dirs use ("."); | ||
| for Object_Dir use "obj/"; | ||
| for Create_Missing_Dirs use "True"; | ||
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| package Compiler renames STM32_F4VE_Full.Compiler; | ||
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| package Ide is | ||
| for Program_Host use "localhost:4242"; | ||
| for Communication_Protocol use "remote"; | ||
| for Connection_Tool use "st-util"; | ||
| end Ide; | ||
| end LCD_SPI; |
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| ------------------------------------------------------------------------------ | ||
| -- -- | ||
| -- Copyright (C) 2024, AdaCore -- | ||
| -- -- | ||
| -- Redistribution and use in source and binary forms, with or without -- | ||
| -- modification, are permitted provided that the following conditions are -- | ||
| -- met: -- | ||
| -- 1. Redistributions of source code must retain the above copyright -- | ||
| -- notice, this list of conditions and the following disclaimer. -- | ||
| -- 2. Redistributions in binary form must reproduce the above copyright -- | ||
| -- notice, this list of conditions and the following disclaimer in -- | ||
| -- the documentation and/or other materials provided with the -- | ||
| -- distribution. -- | ||
| -- 3. Neither the name of the copyright holder nor the names of its -- | ||
| -- contributors may be used to endorse or promote products derived -- | ||
| -- from this software without specific prior written permission. -- | ||
| -- -- | ||
| -- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -- | ||
| -- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -- | ||
| -- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -- | ||
| -- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -- | ||
| -- HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -- | ||
| -- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -- | ||
| -- LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -- | ||
| -- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -- | ||
| -- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -- | ||
| -- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -- | ||
| -- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -- | ||
| -- -- | ||
| ------------------------------------------------------------------------------ | ||
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| with Ada.Real_Time; | ||
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| with HAL.Bitmap; | ||
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| with STM32.Board; | ||
| with Display_ILI9341; | ||
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| procedure Main is | ||
| use type Ada.Real_Time.Time; | ||
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| Next : Ada.Real_Time.Time := Ada.Real_Time.Clock; | ||
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| Bitmap : Display_ILI9341.Bitmap_Buffer renames STM32.Board.TFT_Bitmap; | ||
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| begin | ||
| -- STM32.Board.Initialize_LEDs; | ||
| STM32.Board.Display.Initialize; | ||
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| Bitmap.Set_Source (HAL.Bitmap.Black); | ||
| Bitmap.Fill; | ||
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| for X in 0 .. 31 loop | ||
| for Y in 0 .. 31 loop | ||
| Bitmap.Set_Source | ||
| ((Alpha => 255, | ||
| Green => 128, | ||
| Red => HAL.UInt8 (X * 8), | ||
| Blue => HAL.UInt8 (Y * 8))); | ||
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| Bitmap.Fill_Rect (((X * 7, Y * 10), 6, 9)); | ||
| end loop; | ||
| end loop; | ||
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| loop | ||
| -- STM32.Board.Toggle (STM32.Board.D1_LED); | ||
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| Next := Next + Ada.Real_Time.Milliseconds (500); | ||
| delay until Next; | ||
| end loop; | ||
| end Main; |
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