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: Graphics/GraphicsDisplay.cpp

Revision:
4:12ba0ecc2c1f
Parent:
3:48f3282c2be8
Child:
8:26757296c79d
--- a/Graphics/GraphicsDisplay.cpp	Sat Feb 14 17:42:21 2015 +0000
+++ b/Graphics/GraphicsDisplay.cpp	Sun Feb 15 20:06:07 2015 +0000
@@ -1,5 +1,14 @@
- 
- /* mbed library for 240*320 pixel display TFT based on ILI9341 LCD Controller
+/* mbed UniGraphic library - Graphics class
+ * Copyright (c) 2015 Giuliano Dianda
+ * Released under the MIT License: http://mbed.org/license/mit
+ *
+ * Derived work of:
+ *
+ * mbed GraphicsDisplay Display Library Base Class
+ * Copyright (c) 2007-2009 sford
+ * Released under the MIT License: http://mbed.org/license/mit
+ *
+ * mbed library for 240*320 pixel display TFT based on ILI9341 LCD Controller
  * Copyright (c) 2013 Peter Drescher - DC2PD
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
@@ -11,10 +20,7 @@
  * THE SOFTWARE.
  */
  
- /* mbed GraphicsDisplay Display Library Base Class
- * Copyright (c) 2007-2009 sford
- * Released under the MIT License: http://mbed.org/license/mit
- */
+
  
 #include "GraphicsDisplay.h"
 #define SWAP(a, b)  { a ^= b; b ^= a; a ^= b; }