GR-PEACH_Video_Display - Video image display and touch panel sample for G…

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Daiki Kato / Mbed OS GR-PEACH_Video_Display

Video image display and touch panel sample for GR-PEACH LCD Shield.

Information

Japanese version is available in lower part of this page.
このページの後半に日本語版が用意されています．

Information

This sample has multiple frame buffers so that the clock source can display different cameras and LCDs cleanly. If you are using the NTSC signal, the following sample is simpler.
このサンプルはクロック元が異なるカメラとLCDを綺麗に表示するために、複数のフレームバッファを持っています。NTSC信号を使用するのであれば、以下のサンプルの方が単純です。

https://developer.mbed.org/users/dkato/code/GR-PEACH_NTSC_in_2ch/

What is this ?

The basic function of the GR-PEACH LCD Shield can be tried by this sample.
Display the information of the touch panel on the camera image.
A character font is shown to the screen lower right every 1 second.

Touch panel information

The touch location of the blue and the 2nd point becomes pink in the 1st touch location in case of a multi-touch.
While touching the screen, a white square in the upper left corner of the screen will be displayed.
Touch information is being output in printf. When doing terminal designation, please set 230400 as a baud rate.

Composition

GR-PEACH, GR-PEACH 4.3 inch LCD Shield or GR-PEACH 7.1 inch LCD Shield, GR-PEACH AUDIO CAMERA Shield and Camera.
/media/uploads/dkato/gr-peach_with_camera_lcd.png

When using analog input for video input, GR-PEACH AUDIO CAMERA Shield and the camera are unnecessary.
(Setting the VIDEO_CVBS to VIDEO_INPUT_METHOD)
Please input analog signal to NTSC1A pin. (Even if there are no input signals, a touch panel can be operated.).
/media/uploads/dkato/video_display_analog.jpg

Video input of default is a digital input (Cmos Camera). When changing the video input, please change the below.

mbed_app.json

{
    "config": {
        "camera":{
            "help": "0:disable 1:enable",
            "value": "1"
        },
        "camera-type":{
            "help": "Please see README.md",
            "value": "CAMERA_CVBS"
        },
        "lcd":{
            "help": "0:disable 1:enable",
            "value": "1"
        },
        "lcd-type":{
            "help": "Please see README.md",
            "value": "GR_PEACH_4_3INCH_SHIELD"
        }
    }
}

camera-type "value"	Description
CAMERA_CVBS	GR-PEACH NTSC signal
CAMERA_MT9V111	GR-PEACH MT9V111
CAMERA_OV7725	GR-LYHCEE included camera
CAMERA_OV5642	GR-PEACH OV5642
CAMERA_WIRELESS_CAMERA	GR-PEACH Wireless/Camera shield (MT9V111)

lcd-type "value"	Description
GR_PEACH_4_3INCH_SHIELD	GR-PEACH 4.3 inch LCD shield
GR_PEACH_7_1INCH_SHIELD	GR-PEACH 7.1 inch LCD shield
GR_PEACH_RSK_TFT	GR-PEACH RSK board LCD
GR_PEACH_DISPLAY_SHIELD	GR-PEACH Display Shield or DVi-Board
GR_LYCHEE_LCD	GR-LYHCEE TF043HV001A0..etc(40pin)

概要

このサンプルではGR-PEACH LCD Shieldの基本的な機能を試せます。
カメラ画像の上にタッチパネルの情報を重ねて表示します。
文字フォントが右下に1秒毎に表示されます。

タッチパネルの情報

マルチタッチの場合は１点目のタッチ位置は青、２点目のタッチ位置はピンクになります。
画面がタッチされている間、画面左上に白い四角が表示されます。
printfでもタッチ情報を出力しています。ターミナル表示を行う際は、ボーレートに230400を設定してください。

構成

GR-PEACH、GR-PEACH 4.3 inch LCD Shield または GR-PEACH 7.1 inch LCD Shield、GR-PEACH AUDIO CAMERA Shield 、カメラ。
/media/uploads/dkato/gr-peach_with_camera_lcd.png

ビデオ入力にアナログ入力を使用する場合はGR-PEACH AUDIO CAMERA Shield とカメラは不要です。
(VIDEO_INPUT_METHOD にVIDEO_CVBS を設定)
NTSC1Aピンにアナログ信号を入力してください。(入力信号が無くてもタッチパネルは操作できます。)
/media/uploads/dkato/video_display_analog.jpg

デフォルトのビデオ入力はデジタル入力(Cmos Camera)です。ビデオ入力を変更する際は以下を変更してください。

mbed_app.json

{
    "config": {
        "camera":{
            "help": "0:disable 1:enable",
            "value": "1"
        },
        "camera-type":{
            "help": "Please see README.md",
            "value": "CAMERA_CVBS"
        },
        "lcd":{
            "help": "0:disable 1:enable",
            "value": "1"
        },
        "lcd-type":{
            "help": "Please see README.md",
            "value": "GR_PEACH_4_3INCH_SHIELD"
        }
    }
}

camera-type "value"	Description
CAMERA_CVBS	GR-PEACH NTSC signal
CAMERA_MT9V111	GR-PEACH MT9V111
CAMERA_OV7725	GR-LYHCEE included camera
CAMERA_OV5642	GR-PEACH OV5642
CAMERA_WIRELESS_CAMERA	GR-PEACH Wireless/Camera shield (MT9V111)

lcd-type "value"	Description
GR_PEACH_4_3INCH_SHIELD	GR-PEACH 4.3 inch LCD shield
GR_PEACH_7_1INCH_SHIELD	GR-PEACH 7.1 inch LCD shield
GR_PEACH_RSK_TFT	GR-PEACH RSK board LCD
GR_PEACH_DISPLAY_SHIELD	GR-PEACH Display Shield or DVi-Board
GR_LYCHEE_LCD	GR-LYHCEE TF043HV001A0..etc(40pin)

Diff: main.cpp

Revision:: 9:61f53c094a1c
Parent:: 8:5975dd9a8177
Child:: 10:cdef6df6eac9

--- a/main.cpp	Tue Jul 24 03:10:14 2018 +0000
+++ b/main.cpp	Tue Jul 24 04:05:18 2018 +0000
@@ -5,21 +5,19 @@
 
 #define STRING_DISP_TEST       (1)
 
-/* Video input and LCD layer 0 output */
-#define DATA_SIZE_PER_PIC      (2u)
-
-/*! Frame buffer stride: Frame buffer stride should be set to a multiple of 32 or 128
-    in accordance with the frame buffer burst transfer mode. */
-#define VIDEO_PIXEL_HW         LCD_PIXEL_WIDTH
-#define VIDEO_PIXEL_VW         LCD_PIXEL_HEIGHT
 #if (MBED_CONF_APP_LCD_TYPE == GR_PEACH_4_3INCH_SHIELD)
 #define ASPECT_RATIO_16_9      (1)
 #endif
 
-#define FRAME_BUFFER_STRIDE    (((VIDEO_PIXEL_HW * DATA_SIZE_PER_PIC) + 31u) & ~31u)
-#define FRAME_BUFFER_HEIGHT    (VIDEO_PIXEL_VW)
+static DisplayBase Display;
 
-static DisplayBase Display;
+/************************** Camera **************************/
+#if MBED_CONF_APP_CAMERA
+/*! Frame buffer stride: Frame buffer stride should be set to a multiple of 32 or 128
+    in accordance with the frame buffer burst transfer mode. */
+#define DATA_SIZE_PER_PIC      (2u)
+#define FRAME_BUFFER_STRIDE    (((LCD_PIXEL_WIDTH * DATA_SIZE_PER_PIC) + 31u) & ~31u)
+#define FRAME_BUFFER_HEIGHT    (LCD_PIXEL_HEIGHT)
 
 #if defined(__ICCARM__)
 #pragma data_alignment=32
@@ -28,12 +26,51 @@
 static uint8_t user_frame_buffer0[FRAME_BUFFER_STRIDE * FRAME_BUFFER_HEIGHT]__attribute((section("NC_BSS"),aligned(32)));
 #endif
 
+static void Start_Video_Camera(void) {
+    DisplayBase::rect_t rect;
+
+    // Initialize the background to black
+    for (uint32_t i = 0; i < sizeof(user_frame_buffer0); i += 2) {
+        user_frame_buffer0[i + 0] = 0x00;
+        user_frame_buffer0[i + 1] = 0x80;
+    }
+
+    // Video capture setting (progressive form fixed)
+    Display.Video_Write_Setting(
+        DisplayBase::VIDEO_INPUT_CHANNEL_0,
+        DisplayBase::COL_SYS_NTSC_358,
+        (void *)user_frame_buffer0,
+        FRAME_BUFFER_STRIDE,
+        DisplayBase::VIDEO_FORMAT_YCBCR422,
+        DisplayBase::WR_RD_WRSWA_32_16BIT,
+        LCD_PIXEL_HEIGHT,
+        LCD_PIXEL_WIDTH
+    );
+    EasyAttach_CameraStart(Display, DisplayBase::VIDEO_INPUT_CHANNEL_0);
+
+    // LCD setting
+    rect.vs = 0;
+    rect.vw = LCD_PIXEL_HEIGHT;
+    rect.hs = 0;
+    rect.hw = LCD_PIXEL_WIDTH;
+    Display.Graphics_Read_Setting(
+        DisplayBase::GRAPHICS_LAYER_0,
+        (void *)user_frame_buffer0,
+        FRAME_BUFFER_STRIDE,
+        DisplayBase::GRAPHICS_FORMAT_YCBCR422,
+        DisplayBase::WR_RD_WRSWA_32_16BIT,
+        &rect
+    );
+    Display.Graphics_Start(DisplayBase::GRAPHICS_LAYER_0);
+}
+#endif // MBED_CONF_APP_CAMERA
+
+
+/************************** Touch panel **************************/
 #if defined(TouckKey_LCD_shield)
-
 /* TOUCH BUFFER Parameter GRAPHICS_LAYER_1 */
 #define TOUCH_BUFFER_BYTE_PER_PIXEL   (2u)
 #define TOUCH_BUFFER_STRIDE           (((LCD_PIXEL_WIDTH * TOUCH_BUFFER_BYTE_PER_PIXEL) + 31u) & ~31u)
-
 /* Touch panel parameter */
 #define TOUCH_NUM                     (2u)
 #define DRAW_POINT                    (8)
@@ -152,6 +189,8 @@
 }
 #endif // TouckKey_LCD_shield
 
+
+/************************** String Disp Test **************************/
 #if STRING_DISP_TEST
 /* STRING BUFFER Parameter GRAPHICS_LAYER_2 */
 #define STRING_PIXEL_HW               (120)
@@ -170,8 +209,6 @@
     DisplayBase::rect_t rect;
     char test_cnt = 0x20;
 
-    DigitalOut  led_blue(LED_BLUE);
-
     /* The layer by which the character string is drawn */
     memset(user_frame_buffer_string, 0, sizeof(user_frame_buffer_string));
     dcache_clean(user_frame_buffer_string, sizeof(user_frame_buffer_string));
@@ -196,7 +233,6 @@
     ascii_font.DrawStr("Font:", 0, 8, 0x0000ffff, 2);
 
     while (1) {
-        led_blue = !led_blue;
         //colour: rrrrGBAR (r:Reserve G:Green B:Blue A:Alpha R:Red
         ascii_font.DrawChar(test_cnt, 84, 0, 0x0000aa9f, 3);
         if (test_cnt < 0x7e) {
@@ -210,56 +246,24 @@
 }
 #endif // STRING_DISP_TEST
 
-static void Start_Video_Camera(void) {
-    // Video capture setting (progressive form fixed)
-    Display.Video_Write_Setting(
-        DisplayBase::VIDEO_INPUT_CHANNEL_0,
-        DisplayBase::COL_SYS_NTSC_358,
-        (void *)user_frame_buffer0,
-        FRAME_BUFFER_STRIDE,
-        DisplayBase::VIDEO_FORMAT_YCBCR422,
-        DisplayBase::WR_RD_WRSWA_32_16BIT,
-        VIDEO_PIXEL_VW,
-        VIDEO_PIXEL_HW
-    );
-    EasyAttach_CameraStart(Display, DisplayBase::VIDEO_INPUT_CHANNEL_0);
-}
 
-static void Start_LCD_Display(void) {
-    DisplayBase::rect_t rect;
-
-    rect.vs = 0;
-    rect.vw = LCD_PIXEL_HEIGHT;
-    rect.hs = 0;
-    rect.hw = LCD_PIXEL_WIDTH;
-    Display.Graphics_Read_Setting(
-        DisplayBase::GRAPHICS_LAYER_0,
-        (void *)user_frame_buffer0,
-        FRAME_BUFFER_STRIDE,
-        DisplayBase::GRAPHICS_FORMAT_YCBCR422,
-        DisplayBase::WR_RD_WRSWA_32_16BIT,
-        &rect
-    );
-    Display.Graphics_Start(DisplayBase::GRAPHICS_LAYER_0);
-
-    Thread::wait(50);
-    EasyAttach_LcdBacklight(true);
-}
-
+/************************** main **************************/
 int main(void) {
-    // Initialize the background to black
-    for (uint32_t i = 0; i < sizeof(user_frame_buffer0); i += 2) {
-        user_frame_buffer0[i + 0] = 0x00;
-        user_frame_buffer0[i + 1] = 0x80;
-    }
-
+    /* Camera and LCD setting */
 #if ASPECT_RATIO_16_9
     EasyAttach_Init(Display, 640, 360);  //aspect ratio 16:9
 #else
     EasyAttach_Init(Display);            //aspect ratio 4:3
 #endif
+
+    /* Start camera */
+#if MBED_CONF_APP_CAMERA
     Start_Video_Camera();
-    Start_LCD_Display();
+#endif // MBED_CONF_APP_CAMERA
+
+    /* LCD Backlight ON */
+    Thread::wait(50);  // After reset, wait a bit so that the power does not rise abruptly.
+    EasyAttach_LcdBacklight(true);
 
     /* Start touch panel processing */
 #if defined(TouckKey_LCD_shield)
@@ -273,10 +277,10 @@
     stringTask.start(callback(string_task));
 #endif // STRING_DISP_TEST
 
-#if defined(TouckKey_LCD_shield)
-    touchTask.join();
-#endif // TouckKey_LCD_shield
-#if STRING_DISP_TEST
-    stringTask.join();
-#endif // STRING_DISP_TEST
+    /* LED blink */
+    DigitalOut  led_blue(LED_BLUE);
+    while (1) {
+        led_blue = !led_blue;
+        Thread::wait(500);
+    }
 }

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Repository details

Type:	Program
Mbed OS support:	Mbed OS
Created:	30 Jun 2016
Imports:	180
Forks:	1
Commits:	12
Dependents:	0
Dependencies:	0
Followers:	5

Information

Information

What is this ?

Touch panel information

Composition

mbed_app.json

概要

タッチパネルの情報

構成

mbed_app.json

Diff: main.cpp

Repository toolbox

Repository details

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