Wim Huiskamp
PT6315 VFD driver. Supports DVDR3510.
Diff: PT6315.h
- Revision:
- 0:d93c23711ca8
diff -r 000000000000 -r d93c23711ca8 PT6315.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/PT6315.h Wed Jan 20 19:24:17 2016 +0000
@@ -0,0 +1,394 @@
+/* mbed PT6315 Library, for Princeton PT6315 VFD controller
+ * Copyright (c) 2016, v01: WH, Initial version for DVDR3510
+ *
+ * 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, including 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, 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 PT6315_H
+#define PT6315_H
+
+// Select one of the testboards for Princeton PT6315 VFD controller
+#include "PT6315_Config.h"
+
+/** An interface for driving Princeton PT6315 VFD controller
+ *
+ * @code
+ *
+ * #if (PT6315_TEST == 1)
+ * // Direct driving of PT6315 Test
+ *
+ * #include "mbed.h"
+ * #include "PT6315.h"
+ *
+ * DisplayData_t size is 24 bytes (8 Grids @ 20 Segments) ... 48 bytes (16 Grids @ 12 Segments)
+ * DisplayData_t size default is 48 bytes (16 Grids @ 12 Segments)
+ * PT6315::DisplayData_t all_str = {0xFF,0x0F,0x00 0xFF,0x0F,0x00, 0xFF,0x0F,0x00, 0xFF,0x0F,0x00, 0xFF,0x0F,0x00, 0xFF,0x0F,0x00, 0xFF,0x0F,0x00, 0xFF,0x0F,0x00,
+ * 0xFF,0x0F,0x00 0xFF,0x0F,0x00, 0xFF,0x0F,0x00, 0xFF,0x0F,0x00, 0xFF,0x0F,0x00, 0xFF,0x0F,0x00, 0xFF,0x0F,0x00, 0xFF,0x0F,0x00};
+ *
+ * // KeyData_t size is 6 bytes
+ * PT6315::KeyData_t keydata;
+ *
+ * // PT6315 declaration, Default setting 16 Grids @ 12 Segments
+ * PT6315 PT6315(p5,p6,p7, p8);
+ *
+ * int main() {
+ * PT6315.cls();
+ * PT6315.writeData(all_str);
+ * wait(4);
+ * PT6315.setBrightness(PT6315_BRT0);
+ * wait(1);
+ * PT6315.setBrightness(PT6315_BRT3);
+ *
+ * while (1) {
+ * // Check and read keydata
+ * if (PT6315.getKeys(&keydata)) {
+ * pc.printf("Keydata 0..5 = 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\r\n", keydata[0], keydata[1], keydata[2], keydata[3], keydata[4], keydata[5]);
+ *
+ * if (keydata[0] == 0x10) { //sw2
+ * PT6315.cls();
+ * wait(1);
+ * PT6315.writeData(all_str);
+ * }
+ * }
+ * }
+ * }
+ * #endif
+ *
+ * @endcode
+ */
+
+//PT6315 Display and Keymatrix data
+#define PT6315_MAX_NR_GRIDS 12
+#define PT6315_BYTES_PER_GRID 3
+//Significant bits Keymatrix data
+#define PT6315_KEY_MSK 0xFF
+
+//Memory size in bytes for Display and Keymatrix
+#define PT6315_DISPLAY_MEM (PT6315_MAX_NR_GRIDS * PT6315_BYTES_PER_GRID)
+#define PT6315_KEY_MEM 4
+
+//Reserved bits for commands
+#define PT6315_CMD_MSK 0xC0
+
+//Mode setting command
+#define PT6315_MODE_SET_CMD 0x00
+#define PT6315_GR4_SEG24 0x00
+#define PT6315_GR5_SEG23 0x01
+#define PT6315_GR6_SEG22 0x02
+#define PT6315_GR7_SEG21 0x03
+#define PT6315_GR8_SEG20 0x04
+#define PT6315_GR9_SEG19 0x05
+#define PT6315_GR10_SEG18 0x06
+#define PT6315_GR11_SEG17 0x07
+#define PT6315_GR12_SEG16 0x08 //default
+
+//Data setting commands
+#define PT6315_DATA_SET_CMD 0x40
+#define PT6315_DATA_WR 0x00
+#define PT6315_LED_WR 0x01
+#define PT6315_KEY_RD 0x02
+#define PT6315_SW_RD 0x03
+#define PT6315_ADDR_INC 0x00
+#define PT6315_ADDR_FIXED 0x04
+#define PT6315_MODE_NORM 0x00
+#define PT6315_MODE_TEST 0x08
+
+//LED settings data
+#define PT6315_LED_MSK 0x0F
+#define PT6315_LED1 0x01
+#define PT6315_LED2 0x02
+#define PT6315_LED3 0x04
+#define PT6315_LED4 0x08
+
+//Address setting commands
+#define PT6315_ADDR_SET_CMD 0xC0
+#define PT6315_ADDR_MSK 0x3F
+
+//Display control commands
+#define PT6315_DSP_CTRL_CMD 0x80
+#define PT6315_BRT_MSK 0x07
+#define PT6315_BRT0 0x00 //Pulsewidth 1/16, Default
+#define PT6315_BRT1 0x01
+#define PT6315_BRT2 0x02
+#define PT6315_BRT3 0x03
+#define PT6315_BRT4 0x04
+#define PT6315_BRT5 0x05
+#define PT6315_BRT6 0x06
+#define PT6315_BRT7 0x07 //Pulsewidth 14/16
+
+#define PT6315_BRT_DEF PT6315_BRT3
+
+#define PT6315_DSP_OFF 0x00 //Default
+#define PT6315_DSP_ON 0x08
+
+
+/** A class for driving Princeton PT6315 VFD controller
+ *
+ * @brief Supports 8 Grids of 20 Segments upto 16 Grids of 12 Segments. Also supports a scanned keyboard of upto 48 keys, 4 switches and 5 LEDs.
+ * SPI bus interface device.
+ */
+class PT6315 {
+ public:
+
+ /** Enums for display mode */
+ enum Mode {
+ Grid4_Seg24 = PT6315_GR4_SEG24,
+ Grid5_Seg23 = PT6315_GR5_SEG23,
+ Grid6_Seg22 = PT6315_GR6_SEG22,
+ Grid7_Seg21 = PT6315_GR7_SEG21,
+ Grid8_Seg20 = PT6315_GR8_SEG20,
+ Grid9_Seg19 = PT6315_GR9_SEG19,
+ Grid10_Seg18 = PT6315_GR10_SEG18,
+ Grid11_Seg17 = PT6315_GR11_SEG17,
+ Grid12_Seg16 = PT6315_GR12_SEG16
+ };
+
+ /** Datatypes for display and keymatrix data */
+ typedef char DisplayData_t[PT6315_DISPLAY_MEM];
+ typedef char KeyData_t[PT6315_KEY_MEM];
+
+ /** Constructor for class for driving Princeton PT6315 VFD controller
+ *
+ * @brief Supports 4 Grids of 24 Segments upto 12 Grids of 16 Segments. Also supports a scanned keyboard of upto 32 keys and 4 LEDs.
+ * SPI bus interface device.
+ * @param PinName mosi, miso, sclk, cs SPI bus pins
+ * @param Mode selects either number of Grids and Segments (default 12 Grids, 16 Segments)
+ */
+ PT6315(PinName mosi, PinName miso, PinName sclk, PinName cs, Mode mode=Grid12_Seg16);
+
+ /** Clear the screen and locate to 0
+ */
+ void cls();
+
+ /** Write databyte to PT6315
+ * @param int address display memory location to write byte
+ * @param char data byte written at given address
+ * @return none
+ */
+ void writeData(int address, char data);
+
+ /** Write Display datablock to PT6315
+ * @param DisplayData_t data Array of PT6315_DISPLAY_MEM (=36) bytes for displaydata (starting at address 0)
+ * @param length number bytes to write (valid range 0..PT6315_DISPLAY_MEM (=36), starting at address 0)
+ * @return none
+ */
+ void writeData(DisplayData_t data, int length = PT6315_DISPLAY_MEM);
+
+
+ /** Read keydata block from PT6315
+ * @param *keydata Ptr to Array of PT6315_KEY_MEM (=4) bytes for keydata
+ * @return bool keypress True when at least one key was pressed
+ *
+ * Note: Due to the hardware configuration the PT6315 key matrix scanner will detect multiple keys pressed at same time,
+ * but this may result in some spurious keys also being set in keypress data array.
+ * It may be best to ignore all keys in those situations. That option is implemented in this method depending on #define setting.
+ */
+ bool getKeys(KeyData_t *keydata);
+
+
+ /** Set LEDs
+ *
+ * @param char leds (4 least significant bits)
+ * @return none
+ */
+ void setLED (char leds = 0);
+
+ /** Set Brightness
+ *
+ * @param char brightness (3 significant bits, valid range 0..7 (1/16 .. 14/16 dutycycle)
+ * @return none
+ */
+ void setBrightness(char brightness = PT6315_BRT_DEF);
+
+ /** Set the Display mode On/off
+ *
+ * @param bool display mode
+ */
+ void setDisplay(bool on);
+
+ private:
+ SPI _spi;
+ DigitalOut _cs;
+ Mode _mode;
+ char _display;
+ char _bright;
+
+ /** Init the SPI interface and the controller
+ * @param none
+ * @return none
+ */
+ void _init();
+
+ /** Helper to reverse all command or databits. The PT6315 expects LSB first, whereas SPI is MSB first
+ * @param char data
+ * @return bitreversed data
+ */
+ char _flip(char data);
+
+ /** Write command and parameter to PT6315
+ * @param int cmd Command byte
+ * &Param int data Parameters for command
+ * @return none
+ */
+ void _writeCmd(int cmd, int data);
+};
+
+
+
+#if (DVDR3510_TEST == 1)
+// Derived class for DVDR3510 front display unit
+// Grids 2-11 all display 14-Segment digits and several Icons.
+// Grid 1 and 12 display Icons.
+
+//
+#include "Font_16Seg.h"
+
+//DVDR3510 Display data
+#define DVDR3510_NR_GRIDS 11
+#define DVDR3510_NR_DIGITS 8
+#define DVDR3510_NR_UDC 8
+
+//DVDR3510 Memory size in bytes for Display
+#define DVDR3510_DISPLAY_MEM (DVDR3510_NR_GRIDS * PT6315_BYTES_PER_GRID)
+
+
+/** Constructor for class for driving Princeton PT6315 VFD controller as used in DVDR3510
+ *
+ * @brief Supports 11 Grids of 17 Segments and Icons (8 digits of 14 segments plus some icons).
+ * Also supports a scanned keyboard of 11 keys and 1 LED.
+ *
+ * @param PinName mosi, miso, sclk, cs SPI bus pins
+ */
+class PT6315_DVDR3510 : public PT6315, public Stream {
+ public:
+
+ /** Enums for Icons */
+ // Grid encoded in 8 MSBs, Icon pattern encoded in 24 LSBs
+ enum Icon {
+ RCV = (1<<24) | S16_RCV,
+ SAT = (8<<24) | S16_SAT,
+ DRT = (9<<24) | S16_DRT,
+ TV = (9<<24) | S16_TV,
+ COL4 = (10<<24) | S16_COL4,
+ TMR = (10<<24) | S16_TMR,
+ COL6 = (11<<24) | S16_COL6,
+ DP6 = (11<<24) | S16_DP6,
+ PRS = (11<<24) | S16_PRS
+ };
+
+ typedef short UDCData_t[DVDR3510_NR_UDC];
+
+
+/** Constructor for class for driving Princeton PT6315 VFD controller as used in DVDR3510
+ *
+ * @brief Supports 8 Grids of 16 Segments and Icons (8 digits of 14 Segments plus some icons).
+ * Also supports a scanned keyboard of 11 keys and 1 LED.
+ *
+ * @param PinName mosi, miso, sclk, cs SPI bus pins
+ */
+ PT6315_DVDR3510(PinName mosi, PinName miso, PinName sclk, PinName cs);
+
+#if DOXYGEN_ONLY
+ /** Write a character to the Display
+ *
+ * @param c The character to write to the display
+ */
+ 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.
+ */
+ int printf(const char* format, ...);
+#endif
+
+ /** Locate cursor to a screen column
+ *
+ * @param column The horizontal position from the left, indexed from 0
+ */
+ void locate(int column);
+
+ /** Clear the screen and locate to 0
+ * @param bool clrAll Clear Icons also (default = false)
+ */
+ void cls(bool clrAll = false);
+
+ /** Set Icon
+ *
+ * @param Icon icon Enums Icon has Grid position encoded in 8 MSBs, Icon pattern encoded in 24 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 24 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)
+ */
+ void setUDC(unsigned char udc_idx, int udc_data);
+
+
+ /** Number of screen columns
+ *
+ * @param none
+ * @return columns
+ */
+ int columns();
+
+ /** Write databyte to PT6315
+ * @param int address display memory location to write byte
+ * @param char data byte written at given address
+ * @return none
+ */
+ void writeData(int address, char data){
+ PT6315::writeData(address, data);
+ }
+
+ /** Write Display datablock to PT6315
+ * @param DisplayData_t data Array of PT6315_DISPLAY_MEM (=36) bytes for displaydata (starting at address 0)
+ * @param length number bytes to write (valid range 0..(DVDR3510_NR_GRIDS * PT6315_BYTES_PER_GRID) == 24, starting at address 0)
+ * @return none
+ */
+ void writeData(DisplayData_t data, int length = (DVDR3510_NR_GRIDS * PT6315_BYTES_PER_GRID)) {
+ PT6315::writeData(data, length);
+ }
+
+protected:
+ // Stream implementation functions
+ virtual int _putc(int value);
+ virtual int _getc();
+
+private:
+ int _column; // Current cursor location
+ int _columns; // Max number of columns
+
+ DisplayData_t _displaybuffer; // Local mirror for all chars and icons
+ UDCData_t _UDC_16S; // User Defined Character pattterns (UDC)
+};
+#endif
+
+#endif
PT6315 VFD driver (192 segm max), Keyboard scan (32 max).