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: Inits/IST3020.cpp

Revision:
9:1749ae993cfe
Parent:
4:12ba0ecc2c1f
Child:
18:ffa58f1a680a
--- a/Inits/IST3020.cpp	Tue Feb 17 17:54:14 2015 +0000
+++ b/Inits/IST3020.cpp	Tue Feb 17 22:35:07 2015 +0000
@@ -12,12 +12,13 @@
 /////////////////////////////////////////////////////////////////////////
 #define IC_X_SEGS    256 // IST3020 SEG has range 0-255 (255-0 if ADC=1), check your datasheet, important for the orientation
 #define IC_Y_COMS    64  // IST3020 COM has range 0-63 (63-0 if SHL=1), check your datasheet, important for the orientation
-#define LCDSIZE_X       192 // display X pixels, IST3020 is advertised as 224x65 but display size could be smaller
-#define LCDSIZE_Y       64  // display Y pixels, the 65th is for accessing "icons"
+// put in constructor
+//#define LCDSIZE_X       192 // display X pixels, IST3020 is advertised as 224x65 but display size could be smaller
+//#define LCDSIZE_Y       64  // display Y pixels, the 65th is for accessing "icons"
 
 
 
-IST3020::IST3020(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char *name)
+IST3020::IST3020(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char *name, unsigned int LCDSIZE_X, unsigned  int LCDSIZE_Y)
     : LCD(displayproto, port, CS, reset, DC, WR, RD, LCDSIZE_X, LCDSIZE_Y, IC_X_SEGS, IC_Y_COMS, name)
 {
     hw_reset();
@@ -27,7 +28,7 @@
     set_orientation(1);
     locate(0,0);
 }
-IST3020::IST3020(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char *name)
+IST3020::IST3020(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char *name, unsigned int LCDSIZE_X, unsigned  int LCDSIZE_Y)
     : LCD(displayproto, Hz, mosi, miso, sclk, CS, reset, DC, LCDSIZE_X, LCDSIZE_Y, IC_X_SEGS, IC_Y_COMS, name)
 {
     hw_reset();