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/TFT.h

Revision:
11:b842b8e332cb
Parent:
10:668cf78ff93a
Child:
20:14daa48ffd4c
diff -r 668cf78ff93a -r b842b8e332cb Display/TFT.h
--- a/Display/TFT.h	Thu Feb 19 00:33:27 2015 +0000
+++ b/Display/TFT.h	Fri Feb 20 21:32:25 2015 +0000
@@ -208,6 +208,7 @@
     
     /** Read 16bit pixeldata from display controller (with dummy cycle)
     *
+    * @note autoconverts 18to16bit based on display identify info
     * @returns 16bit color
     */ 
     virtual unsigned short rd_gram();
@@ -231,13 +232,18 @@
     */
     void hw_reset();
     
+    /** Try to get read gram pixel format, could be 16bit or 18bit, RGB or BGR
+    * autoset internal flags so pixelread() will always return correct value.
+    */
+    virtual void auto_gram_read_format();
+    
     /** Try to identify display ID
     * @note support ILI9341,94xx, MIPI standard. May be be overridden in Init class for other specific IC
     */
     virtual void identify();
     
     unsigned int scrollbugfix;
-    bool mipistd;
+    
     
     
 private:
@@ -259,6 +265,9 @@
     bool useNOP;
     bool usefastwindow;
     bool fastwindowready;
+    bool mipistd;
+    bool is18bit;
+    bool isBGR;
     
 };