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.cpp

Revision:
27:acb2594b8aa4
Parent:
25:daacdcf34e52
--- a/Display/LCD.cpp	Sun Oct 18 17:31:33 2015 +0000
+++ b/Display/LCD.cpp	Mon Oct 26 12:49:02 2015 +0000
@@ -17,20 +17,23 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+#include "platform.h"
+#include "LCD.h"
 
-#include "LCD.h"
+#if DEVICE_PORTINOUT
+#include "PAR8.h"
+#include "PAR16.h"
+#endif
 
 //#include "mbed_debug.h"
 
 #define SWAP(a, b)  { a ^= b; b ^= a; a ^= b; }
 
-
+#if DEVICE_PORTINOUT
 LCD::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)
     : GraphicsDisplay(name), screensize_X(lcdsize_x), screensize_Y(lcdsize_y), _LCDPAGES(lcdsize_y>>3), _IC_X_SEGS(ic_x_segs), _IC_Y_COMS(ic_y_coms), _IC_PAGES(ic_y_coms>>3)
 {
-#if DEVICE_PORTINOUT
-    if(displayproto==PAR_8) proto = new PAR8(port, CS, reset, DC, WR, RD);
-#endif    
+    if(displayproto==PAR_8) proto = new PAR8(port, CS, reset, DC, WR, RD);  
     useNOP=false;
     buffer = (unsigned char*) malloc (screensize_X*_LCDPAGES);
     buffer16 = (unsigned short*)buffer;
@@ -43,6 +46,8 @@
   //  cls();
   //  locate(0,0);
 }
+#endif  
+
 LCD::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)
     : GraphicsDisplay(name), screensize_X(lcdsize_x), screensize_Y(lcdsize_y), _LCDPAGES(lcdsize_y>>3), _IC_X_SEGS(ic_x_segs), _IC_Y_COMS(ic_y_coms), _IC_PAGES(ic_y_coms>>3)
 {