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/SSD1306.h

Revision:
17:1dafb896c6f5
Parent:
15:b9483ba842c8
Child:
19:1bdfb971b2c1
--- a/Inits/SSD1306.h	Mon Feb 23 23:36:22 2015 +0000
+++ b/Inits/SSD1306.h	Tue Feb 24 22:30:05 2015 +0000
@@ -47,7 +47,28 @@
       */
     virtual void set_contrast(int o);
     
-protected:
+    /** set automatc horizontal scroll mode
+     * @param l_r direction - left = 0, right = 1
+     * @param s_page start page
+     * @param e_page end page
+     * @param speed time between horizontal shift. 0 slow .. 7 fast
+     */
+    void horizontal_scroll(int l_r,int s_page,int e_page,int speed);
+
+    /** automatic horizontal + vertical scroll mode
+     * @param l_r direction - left = 0, right = 1
+     * @param s_page start page
+     * @param e_page end page
+     * @param v_off vertical offset for scroll
+     * @param speed time between horizontal shift. 0 slow .. 7 fast
+     */
+    void horiz_vert_scroll(int l_r,int s_page,int e_page,int v_off,int speed);
+
+    /** end scroll mode
+     *
+     */
+    void end_scroll(void);
+    protected:
     
     
     /** Init command sequence