Darren Ulrich / UniGraphic

Added SPI burst mode to spi 8 bit.

Dependents:   Bicycl_Computer_NUCLEO-F411RE Bicycl_Computer_NUCLEO-L476RG

Fork of UniGraphic by GraphicsDisplay

Added SPI burst mode to this graphics driver. If whoever wants this rolled in to repository let me know. I replaced _spi.write(); with fastWrite(); and clearRX();

SPI8.cpp

// need to re-create SPI firmware to access SPI handle
static SPI_HandleTypeDef SpiHandle;

void SPI8::fastWrite(int data) {
    
      SpiHandle.Instance = SPI1;
    // Check if data is transmitted
    while ((SpiHandle.Instance->SR & SPI_SR_TXE) == 0);
    SpiHandle.Instance->DR = data;
}
    
void SPI8::clearRX( void ) {
        SpiHandle.Instance = SPI1;
    //Check if the RX buffer is busy
    //While busy, keep checking
    while (SpiHandle.Instance->SR & SPI_SR_BSY){   
        // Check RX buffer readable
        while ((SpiHandle.Instance->SR & SPI_SR_RXNE) == 0);
        int dummy = SpiHandle.Instance->DR;
    }
}

Diff: Display/LCD.h

Revision:
1:ff019d22b275
Parent:
0:75ec1b3cde17
Child:
2:713844a55c4e
--- a/Display/LCD.h	Thu Feb 12 22:22:47 2015 +0000
+++ b/Display/LCD.h	Fri Feb 13 15:25:10 2015 +0000
@@ -5,11 +5,14 @@
 #include "GraphicsDisplay.h"
 #include "PAR8.h"
 #include "SPI8.h"
+#include "SPI16.h"
 #include "Protocols.h"
 
 #define Black           1
 #define White           0
 
+
+
 /** Draw mode
   * NORMAl
   * XOR set pixel by xor the screen
@@ -35,7 +38,7 @@
     /** Create a monochrome LCD SPI interface
     * @param name The name used by the parent class to access the interface
     */
-    LCD(proto_t displayproto,PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const int lcdsize_x, const int lcdsize_y, const int ic_x_segs, const int ic_y_coms, const char* name);
+    LCD(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const int lcdsize_x, const int lcdsize_y, const int ic_x_segs, const int ic_y_coms, const char* name);
     
     /** Destructor
     * will free framebuffer
@@ -147,31 +150,65 @@
 ////// functions needed by parent class ///////////////////////////////////////
 ////// -------------------------------- ///////////////////////////////////////
 
-    /** Send command byte to display
-    * @param cmd is the command
-    */
-    void wr_cmd(unsigned char cmd);
+    /** Send 8bit command to display controller 
+    *
+    * @param cmd: byte to send  
+    * @note if protocol is SPI16, it will insert NOP cmd before, so if cmd is a 2byte cmd, the second cmd will be broken. Use wr_cmd16 for 2bytes cmds
+    */   
+    void wr_cmd8(unsigned char cmd);
     
-    /** Send data byte to display
-    * @param data8 is the byte
-    */
-    void wr_data8(unsigned char data8);
+    /** Send 8bit data to display controller 
+    *
+    * @param data: byte to send   
+    *
+    */   
+    void wr_data8(unsigned char data);
     
-    /** Send same data byte to display controller multiple times
+    /** Send same 8bit data to display controller multiple times
     *
-    * @param data8: byte to send
+    * @param data: byte to send
     * @param count: how many
     *
     */   
-    virtual void wr_data8(unsigned char data8, unsigned int count);
+    void wr_data8(unsigned char data, unsigned int count);
     
     /** Send array of data bytes to display controller
     *
-    * @param data8: unsigned char data array
+    * @param data: unsigned char data array
     * @param lenght: lenght of array
     *
     */   
-    virtual void wr_data8buf(unsigned char* data8, unsigned int lenght);
+    void wr_data8buf(unsigned char* data, unsigned int lenght);
+    
+    /** Send 16bit command to display controller 
+    *
+    * @param cmd: halfword to send  
+    *
+    */   
+    void wr_cmd16(unsigned short cmd);
+    
+    /** Send 16bit data to display controller 
+    *
+    * @param data: halfword to send   
+    *
+    */   
+    //void wr_data16(unsigned short data);
+    
+    /** Send same 16bit data to display controller multiple times
+    *
+    * @param data: halfword to send
+    * @param count: how many
+    *
+    */   
+    void wr_data16(unsigned short data, unsigned int count);
+    
+    /** Send array of data shorts to display controller
+    *
+    * @param data: unsigned short data array
+    * @param lenght: lenght (in shorts)
+    *
+    */   
+    void wr_data16buf(unsigned short* data, unsigned int lenght);
     
     /** HW reset sequence (without display init commands)   
     */
@@ -184,6 +221,7 @@
 
 
     unsigned char *buffer;
+    unsigned short *buffer16;
     const int LCDSIZE_X;
     const int LCDSIZE_Y;
     const int LCDPAGES;
@@ -202,7 +240,7 @@
     int win_y1;
     int win_y2;
     int orientation;
-  //  bool portrait;
+    bool useNOP;
 };
 
 #endif
\ No newline at end of file