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/UC1608.cpp

Revision:
0:75ec1b3cde17
Child:
1:ff019d22b275
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Inits/UC1608.cpp	Thu Feb 12 22:22:47 2015 +0000
@@ -0,0 +1,95 @@
+#include "Protocols.h"
+#include "UC1608.h"
+
+//////////////////////////////////////////////////////////////////////////////////
+// display settings ///////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////
+#define IC_X_SEGS    240 // UC1608 SEG has range 0-239 (239-0 if MX=1), check your datasheet, important for the orientation
+#define IC_Y_COMS    128  // UC1608 COM has range 0-127 (127-0 if MY=1), check your datasheet, important for the orientation
+#define LCDSIZE_X       240 // display X pixels
+#define LCDSIZE_Y       120  // display Y pixels, UC1608 is advertised as 240x128 but display size could be smaller
+
+
+
+UC1608::UC1608(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char *name)
+    : LCD(displayproto, port, CS, reset, DC, WR, RD, LCDSIZE_X, LCDSIZE_Y, IC_X_SEGS, IC_Y_COMS, name)
+{
+    hw_reset();
+    BusEnable(true);
+    init();
+    cls();
+    set_orientation(1);
+    locate(0,0);
+}
+UC1608::UC1608(proto_t displayproto, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char *name)
+    : LCD(displayproto, mosi, miso, sclk, CS, reset, DC, LCDSIZE_X, LCDSIZE_Y, IC_X_SEGS, IC_Y_COMS, name)
+{
+    hw_reset();
+    BusEnable(true);
+    init();
+    cls();
+    set_orientation(1);
+    locate(0,0);
+}
+// reset and init the lcd controller
+void UC1608::init()
+{
+    /* Start Initial Sequence ----------------------------------------------------*/
+    
+  //  wr_cmd(0xE2);   //  sw reset
+    wait_ms(15);
+    
+    wr_cmd(0x27);   // Multiplex rate :128   set temperature consenpation 0%
+    wr_cmd(0xEA);   //set bias:1/12bias
+
+    wr_cmd(0xC4);   // set mirror MX=1,MY=0 (controller->display SEGs wiring inverted)
+   // wr_cmd(0xA0);   // ADC select seg0-seg223
+    //wr_cmd(0xA1);   // ADC select seg223-seg0
+   // wr_cmd(0xC8);   // SHL select com63-com0
+    //wr_cmd(0xC0);   // SHL select com0-com63
+
+    wr_cmd(0x2F);   //  //Power Control:internal, LCD capacitance 60nf-90nf
+    wait_ms(10);
+    
+   // wr_cmd(0x81);//Set Gain and Potentiometer
+  //  wr_cmd(0x40|46);//Set Gain and Potentiometer  xx xxxxxx
+    set_contrast(46);
+    
+    wr_cmd(0x88);   //disable colum/page address wraparound
+    wr_cmd(0xA4);   //  LCD display ram (EntireDisplayOn disable)
+    wr_cmd(0x40);   // start line = 0
+    wr_cmd(0xA6);     // display normal (1 = illuminated)
+    wr_cmd(0xAF);     // display ON 
+
+}
+////////////////////////////////////////////////////////////////////
+// functions that overrides the standard ones implemented in LCD.cpp
+////////////////////////////////////////////////////////////////////
+void UC1608::mirrorXY(mirror_t mode)
+{
+    switch (mode)
+    {
+        case(NONE):
+            wr_cmd(0xC4); // this is in real X mirror command, but my display have SEGs wired inverted, so assume this is the default no-x-mirror
+            break;
+        case(X):
+            wr_cmd(0xC0);
+            break;
+        case(Y):
+            wr_cmd(0xCC);
+            break;
+        case(XY):
+            wr_cmd(0xC8);
+            break;
+    }
+}
+void UC1608::set_contrast(int o)
+{
+    contrast = o;
+    wr_cmd(0x81);      //  set volume
+    wr_cmd(0x40|(o&0x3F));
+}
+void UC1608::BusEnable(bool enable)
+{
+    LCD::BusEnable(!enable); // crap IC has CS not inverted (active HIGH)
+}
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