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:
21:ae0a4eedfc90
Parent:
20:14daa48ffd4c
Child:
25:daacdcf34e52
diff -r 14daa48ffd4c -r ae0a4eedfc90 Display/LCD.h
--- a/Display/LCD.h	Mon Mar 23 14:08:04 2015 +0000
+++ b/Display/LCD.h	Tue Mar 31 21:14:48 2015 +0000
@@ -4,6 +4,7 @@
 
 #include "GraphicsDisplay.h"
 #include "PAR8.h"
+#include "BUS8.h"
 #include "SPI8.h"
 #include "SPI16.h"
 #include "Protocols.h"
@@ -30,11 +31,16 @@
 
 public:         
           
-    /** Create a monochrome LCD Parallel interface
+    /** Create a monochrome LCD Parallel Port interface
     * @param name The name used by the parent class to access the interface
     */
     LCD(proto_t displayproto,PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const int lcdsize_x, const int lcdsize_y, const int ic_x_segs, const int ic_y_coms, const char* name);
     
+    /** Create a monochrome LCD Parallel Bus interface
+    * @param name The name used by the parent class to access the interface
+    */
+    LCD(proto_t displayproto,PinName* buspins, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const int lcdsize_x, const int lcdsize_y, const int ic_x_segs, const int ic_y_coms, const char* name);
+    
     /** Create a monochrome LCD SPI interface
     * @param name The name used by the parent class to access the interface
     */