Diff: TM1650.h

Revision:

0:4430a1559b4f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TM1650.h	Tue Oct 10 18:38:46 2017 +0000
@@ -0,0 +1,413 @@
+/* mbed TM1650 Library, for TM1650 LED controller
+ * Copyright (c) 2017, v01: WH, Initial version
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, inclumosig without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUmosiG 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 TM1650_H
+#define TM1650_H
+
+// Select one of the testboards for TM1650 LED controller
+#include "TM1650_Config.h"
+
+/** An interface for driving TM1650 LED controller
+ *
+ * @code
+ * #include "mbed.h"
+ * #include "TM1650.h" 
+ * 
+ * Serial pc(USBTX, USBRX);
+ *
+ * //DisplayData_t size is 4 bytes (4 grids @ 8 segments)
+ * TM1650::DisplayData_t all_str  = {0xFF, 0xFF, 0xFF, 0xFF};  
+ *
+ * // KeyData_t size is 1 bytes  
+ * TM1650::KeyData_t keydata; 
+ *
+ * // TM1650 declaration, Select the desired type in TM1650_Config.h
+ * TM1650_MEIBAI MEIBAI(p6, p7);       //LPC1768
+ * //TM1650_MEIBAI MEIBAI(D9, D10);      //F401
+ *
+ * int main() {
+ *   MEIBAI.cls(); 
+ *   MEIBAI.writeData(all_str);
+ *   wait(1);
+ *   MEIBAI.setBrightness(TM1650_BRT0);
+ *   wait(1);
+ *   MEIBAI.setBrightness(TM1650_BRT3);
+ *
+ *   while (1) {
+ *     MEIBAI.cls(); 
+ *     wait(0.5); 
+ *     MEIBAI.writeData(all_str);
+ *     wait(1.0);
+ *     MEIBAI.cls(); 
+ *     MEIBAI.printf(" HI ");  
+ *     wait(1.0); 
+ *
+ *     // Check and read keydata
+ *     if (MEIBAI.getKeys(&keydata)) {
+ *       pc.printf("Keydata = 0x%02x\r\n", keydata);
+ *
+ *       if (keydata == TM1650_SW1_BIT) { //sw1  
+ *         MEIBAI.cls(); 
+ *         MEIBAI.printf("--01"); 
+ *       }  
+ *     } // Check keydata
+ *   } // while 
+ * }
+ * @endcode
+ */
+
+
+//TM1650 Display data
+#define TM1650_MAX_NR_GRIDS    4
+#define TM1650_BYTES_PER_GRID  1
+
+//Significant bits Keymatrix data
+//#define TM1638_KEY_MSK      0xFF 
+
+//Memory size in bytes for Display and Keymatrix
+#define TM1650_DISPLAY_MEM  (TM1650_MAX_NR_GRIDS * TM1650_BYTES_PER_GRID)
+#define TM1650_KEY_MEM         1
+
+//Data write command
+//Valid data addresses are 0x68, 0x6A, 0x6C, 0x6E
+#define TM1650_DATA_WR_CMD  0x68
+#define TM1650_ADDR_MSK     0x03 //0..3
+
+//Display control command
+#define TM1650_DSP_CTRL_CMD 0x48
+
+#define TM1650_BRT_MSK      0x70
+//#define TM1650_BRT_SHFT        4
+#define TM1650_BRT0         0x10 //Pulsewidth 1/16
+#define TM1650_BRT1         0x20
+#define TM1650_BRT2         0x30
+#define TM1650_BRT3         0x40
+#define TM1650_BRT4         0x50
+#define TM1650_BRT5         0x60
+#define TM1650_BRT6         0x70
+#define TM1650_BRT7         0x00 //Pulsewidth 15/16
+
+#define TM1650_BRT_DEF      TM1650_BRT3
+
+#define TM1650_DSP_8S       0x00
+#define TM1650_DSP_7S       0x08
+
+#define TM1650_DSP_OFF      0x00
+#define TM1650_DSP_ON       0x01
+
+
+//Keydata read command
+#define TM1650_KEY_RD_CMD   0x49
+
+//Access to 28 Switches
+//d7 d6 d5 d4 d3 d2 d1 d0
+// .  1  .  .  .  1  .  .   = Valid Key
+#define TM1650_SW_MSK       0x44
+
+//A -> Dig1 .. Dig4
+#define TM1650_SW1_BIT      0x44
+#define TM1650_SW2_BIT      0x45
+#define TM1650_SW3_BIT      0x46
+#define TM1650_SW4_BIT      0x47
+//B -> Dig1 .. Dig4
+#define TM1650_SW5_BIT      0x4C
+#define TM1650_SW6_BIT      0x4D
+#define TM1650_SW7_BIT      0x4E
+#define TM1650_SW8_BIT      0x4F
+//C -> Dig1 .. Dig4
+#define TM1650_SW9_BIT      0x54
+#define TM1650_SW10_BIT     0x55
+#define TM1650_SW11_BIT     0x56
+#define TM1650_SW12_BIT     0x57
+//D -> Dig1 .. Dig4
+#define TM1650_SW13_BIT     0x5C
+#define TM1650_SW14_BIT     0x5D
+#define TM1650_SW15_BIT     0x5E
+#define TM1650_SW16_BIT     0x5F
+//E -> Dig1 .. Dig4
+#define TM1650_SW17_BIT     0x64
+#define TM1650_SW18_BIT     0x65
+#define TM1650_SW19_BIT     0x66
+#define TM1650_SW20_BIT     0x67
+//F -> Dig1 .. Dig4
+#define TM1650_SW21_BIT     0x6C
+#define TM1650_SW22_BIT     0x6D
+#define TM1650_SW23_BIT     0x6E
+#define TM1650_SW24_BIT     0x6F
+//G -> Dig1 .. Dig4
+#define TM1650_SW25_BIT     0x74
+#define TM1650_SW26_BIT     0x75
+#define TM1650_SW27_BIT     0x76
+#define TM1650_SW28_BIT     0x77
+
+
+
+/** A class for driving TM1650 LED controller
+ *
+ * @brief Supports 4 Grids @ 8 Segments and upto 28 Keys. 
+ *        Serial bus interface device. 
+ */
+class TM1650 {
+ public:
+
+  /** Datatype for displaydata */
+  typedef char DisplayData_t[TM1650_DISPLAY_MEM];
+
+  /** Datatypes for keymatrix data */
+  typedef char KeyData_t;
+
+ /** Constructor for class for driving TM1650 LED controller
+  *
+  * @brief Supports 4 Grids @ 8 segments and 28 Keys. 
+  *        Serial bus interface device. 
+  *
+  *  @param  PinName dio Serial bus DIO pin
+  *  @param  PinName sck Serial bus CLK pin 
+  */
+  TM1650(PinName dio, PinName clk);
+
+
+  /** Clear the screen and locate to 0
+   */ 
+  void cls();  
+
+  /** Write databyte to TM1650
+   *  @param  char data byte written at given address
+   *  @param  int address display memory location to write byte
+   *  @return none
+   */ 
+   void writeData(char data, int address); 
+
+   /** Write Display datablock to TM1650
+    *  @param  DisplayData_t data Array of TM1650_DISPLAY_MEM (=4) bytes for displaydata
+    *  @param  length number bytes to write (valid range 0..(TM1650_MAX_NR_GRIDS * TM1650_BYTES_PER_GRID) (=4), when starting at address 0)  
+    *  @param  int address display memory location to write bytes (default = 0) 
+    *  @return none
+    */ 
+    void writeData(DisplayData_t data, int length = (TM1650_MAX_NR_GRIDS * TM1650_BYTES_PER_GRID), int address = 0);
+
+  /** Read keydata block from TM1650
+   *
+   *  @param  *keydata Ptr to bytes for keydata
+   *  @return bool keypress True when at least one key was pressed
+   */   
+  bool getKeys(KeyData_t *keydata);
+
+  /** Set Brightness
+    *
+    * @param  char brightness (3 significant bits, valid range 0..7 (1/16 .. 14/16 dutycycle)  
+    * @return none
+    */
+  void setBrightness(char brightness = TM1650_BRT_DEF);
+  
+  /** Set the Display mode On/off
+    *
+    * @param bool display mode
+    * @return none
+    */
+  void setDisplay(bool on);
+  
+ private:  
+    DigitalInOut _dio;
+    DigitalOut   _clk;  
+
+    char _bright;
+    char _segment;
+    char _display;    
+  
+  /** Init the Serial interface and the controller
+    * @param  none
+    * @return none
+    */ 
+    void _init();
+
+  /** Generate Start condition for TM1650
+    *  @param  none
+    *  @return none
+    */ 
+    void _start();
+  
+  /** Generate Stop condition for TM1650
+    *  @param  none
+    *  @return none
+    */ 
+    void _stop();
+
+  /** Send byte to TM1650
+    *  @param  int data
+    *  @return none
+    */ 
+    void _write(int data);
+
+  /** Read byte from TM1650
+    *  @param  none  
+    *  @return read byte 
+    */ 
+    char _read();
+
+  /** Write command and parameter to TM1650
+    *  @param  int cmd Command byte
+    *  @Param  int data Parameters for command
+    *  @return none
+    */ 
+    void _writeCmd(int cmd, int data);  
+};
+
+#if (MEIBAI_TEST == 1) 
+// Derived class for TM1650 used in MEIBAI display unit with 4 Digits and 3 keys
+//
+
+#include "Font_7Seg.h"
+
+#define MEIBAI_NR_GRIDS  4
+#define MEIBAI_NR_DIGITS 4
+#define MEIBAI_NR_UDC    8
+
+
+/** Constructor for class for driving TM1650 controller as used in MEIBAI
+  *
+  *  @brief Supports 4 Digits of 7 Segments + DP. 
+  *         Also Supports 3 Keys. Serial bus interface device. 
+  *  
+  *  @param  PinName dio Serial bus DIO pin
+  *  @param  PinName sck Serial bus CLK pin  
+  */
+class TM1650_MEIBAI : public TM1650, public Stream {
+ public:
+
+  /** Enums for Icons */
+  //  Grid encoded in 8 MSBs, Icon pattern encoded in 16 LSBs
+  enum Icon {
+    DP1   = ( 1<<24) | S7_DP1,  /**<  Digit 1 */
+    DP2   = ( 2<<24) | S7_DP2,  /**<  Digit 2 */
+    DP3   = ( 3<<24) | S7_DP3,  /**<  Digit 3 */
+    DP4   = ( 4<<24) | S7_DP4,  /**<  Digit 4 */
+  };
+  
+  typedef char UDCData_t[MEIBAI_NR_UDC];
+
+
+ /** Constructor for class for driving TM1650 LED controller
+  *
+  * @brief Supports 4 Digits of 7 Segments + DP.
+  *        Also Supports 3 Keys. Serial bus interface device. 
+  *
+  *  @param  PinName dio Serial bus DIO pin
+  *  @param  PinName sck Serial bus CLK pin
+  */
+  TM1650_MEIBAI(PinName dio, PinName clk);
+
+  
+#if DOXYGEN_ONLY
+    /** Write a character to the Display
+     *
+     * @param c The character to write to the display
+     * @return c
+     */
+    int putc(int c);
+
+    /** Write a formatted string to the Display
+     *
+     * @param format A printf-style format string, followed by the
+     *               variables to use in formatting the string.
+     * @return chars written
+     */
+    int printf(const char* format, ...);   
+#endif
+
+    /** Locate cursor to a screen column
+     *
+     * @param column  The horizontal position from the left, indexed from 0
+     * @return none     
+     */
+    void locate(int column);
+    
+    /** Clear the screen and locate to 0
+     * @param bool clrAll Clear Icons also (default = false)
+     * @return none     
+     */
+    void cls(bool clrAll = false);
+
+    /** Set Icon
+     *
+     * @param Icon icon Enums Icon has Grid position encoded in 8 MSBs, Icon pattern encoded in 16 LSBs
+     * @return none
+     */
+    void setIcon(Icon icon);
+
+    /** Clr Icon
+     *
+     * @param Icon icon Enums Icon has Grid position encoded in 8 MSBs, Icon pattern encoded in 16 LSBs
+     * @return none
+     */
+    void clrIcon(Icon icon);
+
+   /** Set User Defined Characters (UDC)
+     *
+     * @param unsigned char udc_idx   The Index of the UDC (0..7)
+     * @param int udc_data            The bitpattern for the UDC (16 bits)
+     * @return none            
+     */
+    void setUDC(unsigned char udc_idx, int udc_data);
+
+
+   /** Number of screen columns
+    *
+    * @param none
+    * @return columns
+    */
+    int columns();   
+
+   /** Write databyte to TM1650
+     *  @param  char data byte written at given address
+     *  @param  int address display memory location to write byte
+     *  @return none
+     */ 
+    void writeData(char data, int address){
+      TM1650::writeData(data, address);
+    }        
+
+   /** Write Display datablock to TM1650
+    *  @param  DisplayData_t data Array of TM1650_DISPLAY_MEM (=4) bytes for displaydata
+    *  @param  length number bytes to write (valid range 0..(MEIBAI_NR_GRIDS * TM1650_BYTES_PER_GRID) (=4), when starting at address 0)  
+    *  @param  int address display memory location to write bytes (default = 0)
+    *  @return none
+    */   
+    void writeData(DisplayData_t data, int length = (MEIBAI_NR_GRIDS * TM1650_BYTES_PER_GRID), int address = 0) {
+      TM1650::writeData(data, length, address);
+    }  
+
+protected:  
+    // Stream implementation functions
+    virtual int _putc(int value);
+    virtual int _getc();
+
+private:
+    int _column;
+    int _columns;   
+    
+    DisplayData_t _displaybuffer;
+    UDCData_t _UDC_7S; 
+};
+#endif
+
+#endif
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