Diff: C12832/C12832.h

Revision:

25:ca1b1098c77f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/C12832/C12832.h	Wed May 05 14:48:01 2021 +0000
@@ -0,0 +1,314 @@
+/* mbed library for the mbed Lab Board  128*32 pixel LCD
+ * use C12832 controller
+ * Copyright (c) 2012 Peter Drescher - DC2PD
+ * Released under the MIT License: http://mbed.org/license/mit
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef C12832_H
+#define C12832_H
+
+#include "mbed.h"
+#include "GraphicsDisplay.h"
+
+
+/**
+ * Optional Defines:
+ * #define debug_lcd  1  enable infos to PC_USB
+ */
+
+// some defines for the DMA use
+#define DMA_CHANNEL_ENABLE      1
+#define DMA_TRANSFER_TYPE_M2P   (1UL << 11)
+#define DMA_CHANNEL_TCIE        (1UL << 31)
+#define DMA_CHANNEL_SRC_INC     (1UL << 26)
+#define DMA_MASK_IE             (1UL << 14)
+#define DMA_MASK_ITC            (1UL << 15)
+#define DMA_SSP1_TX             (1UL << 2)
+#define DMA_SSP0_TX             (0)
+#define DMA_DEST_SSP1_TX        (2UL << 6)
+#define DMA_DEST_SSP0_TX        (0UL << 6)
+
+/**
+ * Draw mode
+ * NORMAL
+ * XOR set pixel by xor the screen
+ */
+enum {NORMAL,XOR};
+
+/**
+ * Bitmap
+ */
+struct Bitmap{
+    int xSize;
+    int ySize;
+    int Byte_in_Line;
+    char* data;
+};
+
+/**
+ * The C12832 class
+ */
+class C12832 : public GraphicsDisplay
+{
+public:
+    /**
+     * Create a C12832 object connected to SPI1
+     */
+    C12832(PinName mosi, PinName sck, PinName reset, PinName a0, PinName ncs, const char* name = "LCD");
+
+    /**
+     * Get the width of the screen in pixel
+     *
+     * @returns width of screen in pixel
+     *
+     */
+    virtual int width();
+
+    /**
+     * Get the height of the screen in pixel
+     *
+     * @returns height of screen in pixel
+     */
+    virtual int height();
+
+    /**
+     * Draw a pixel at x,y black or white
+     *
+     * @param x horizontal position
+     * @param y vertical position
+     * @param color - 1 set pixel, 0 erase pixel
+     */
+    virtual void pixel(int x, int y,int colour);
+
+     /**
+      * Draw a circle
+      *
+      * @param x0,y0 center
+      * @param r radius
+      * @param color - 1 set pixel, 0 erase pixel
+      */
+    void circle(int x, int y, int r, int colour);
+
+    /**
+     * Draw a filled circle
+     *
+     * @param x0,y0 center
+     * @param r radius
+     * @param color - 1 set pixel, 0 erase pixel
+     *
+     * Use circle with different radius,
+     * Can miss some pixels
+     */
+    void fillcircle(int x, int y, int r, int colour);
+
+    /**
+     * Draw a 1 pixel line
+     *
+     * @param x0,y0 start point
+     * @param x1,y1 stop point
+     * @param color - 1 set pixel, 0 erase pixel
+     */
+    void line(int x0, int y0, int x1, int y1, int colour);
+
+    /**
+     * Draw a rect
+     *
+     * @param x0,y0 top left corner
+     * @param x1,y1 down right corner
+     * @param color - 1 set pixel, 0 erase pixel
+     */
+    void rect(int x0, int y0, int x1, int y1, int colour);
+
+    /**
+     * Draw a filled rect
+     *
+     * @param x0,y0 top left corner
+     * @param x1,y1 down right corner
+     * @param color - 1 set pixel, 0 erase pixel
+     */
+    void fillrect(int x0, int y0, int x1, int y1, int colour);
+
+    /**
+     * Copy display buffer to LCD
+     */
+    void copy_to_lcd(void);
+
+    /**
+     * Set the orienation of the screen
+     */
+
+    void set_contrast(unsigned int o);
+
+    /**
+     * Read the contrast level
+     */
+    unsigned int get_contrast(void);
+
+    /**
+     * Invert the screen
+     *
+     * @param o = 0 normal, 1 invert
+     */
+    void invert(unsigned int o);
+
+    /**
+     * Clear the screen
+     */
+    virtual void cls(void);
+
+    /**
+     * Set the drawing mode
+     *
+     * @param mode NORMAl or XOR
+     */
+    void setmode(int mode);
+
+    virtual int columns(void);
+
+    /**
+     * Calculate the max number of columns.
+     * Depends on actual font size
+     *
+     * @returns max column
+     */
+    virtual int rows(void);
+
+    /**
+     * Put a char on the screen
+     *
+     * @param value char to print
+     * @returns printed char
+     */
+    virtual int _putc(int value);
+
+    /**
+     * Draw a character on given position out of the active font to the LCD
+     *
+     * @param x x-position of char (top left)
+     * @param y y-position
+     * @param c char to print
+     */
+    virtual void character(int x, int y, int c);
+
+    /**
+     * Setup cursor position
+     *
+     * @param x x-position (top left)
+     * @param y y-position
+     */
+    virtual void locate(int x, int y);
+    
+    /**
+     * Setup auto update of screen 
+     *
+     * @param up 1 = on , 0 = off
+     *
+     * if switched off the program has to call copy_to_lcd() 
+     * to update screen from framebuffer
+     */
+    void set_auto_up(unsigned int up);
+
+    /**
+     * Get status of the auto update function
+     *
+     * @returns if auto update is on
+     */
+    unsigned int get_auto_up(void);
+
+    /** Vars     */
+    SPI _spi;
+    DigitalOut _reset;
+    DigitalOut _A0;
+    DigitalOut _CS;
+    unsigned char* font;
+    unsigned int draw_mode;
+
+
+    /**
+     * Select the font to use
+     *
+     * @param f pointer to font array
+     *
+     *   font array can created with GLCD Font Creator from http://www.mikroe.com
+     *   you have to add 4 parameter at the beginning of the font array to use:
+     *   - the number of byte / char
+     *   - the vertial size in pixel
+     *   - the horizontal size in pixel
+     *   - the number of byte per vertical line
+     *   you also have to change the array to char[]
+     */
+    void set_font(unsigned char* f);
+    
+    /**
+     * Print bitmap to buffer
+     *
+     * @param bm Bitmap in flash
+     * @param x  x start
+     * @param y  y start
+     */
+    void print_bm(Bitmap bm, int x, int y);
+
+protected:
+
+    /**
+     * Draw a horizontal line
+     *
+     * @param x0 horizontal start
+     * @param x1 horizontal stop
+     * @param y vertical position
+     * @param color - 1 set pixel, 0 erase pixel
+     */
+    void hline(int x0, int x1, int y, int colour);
+
+    /**
+     * Draw a vertical line
+     *
+     * @param x horizontal position
+     * @param y0 vertical start
+     * @param y1 vertical stop
+     * @param color - 1 set pixel, 0 erase pixel
+     */
+    void vline(int y0, int y1, int x, int colour);
+
+    /**
+     * Init the C12832 LCD controller
+     */
+    void lcd_reset();
+
+    /**
+     * Write data to the LCD controller
+     *
+     * @param dat data written to LCD controller
+     */
+    void wr_dat(unsigned char value);
+
+    /**
+     * Write a command the LCD controller
+     *
+     * @param cmd: command to be written
+     */
+    void wr_cmd(unsigned char value);
+
+    void wr_cnt(unsigned char cmd);
+
+    unsigned int orientation;
+    unsigned int char_x;
+    unsigned int char_y;
+    unsigned char buffer[512];
+    unsigned int contrast;
+    unsigned int auto_up;
+
+};
+
+
+
+
+#endif