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.cpp

Revision:
3:48f3282c2be8
Parent:
2:713844a55c4e
Child:
4:12ba0ecc2c1f
--- a/Display/TFT.cpp	Fri Feb 13 23:17:55 2015 +0000
+++ b/Display/TFT.cpp	Sat Feb 14 17:42:21 2015 +0000
@@ -1,3 +1,15 @@
+/* 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
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
 #include "TFT.h"
 
 //#include "mbed_debug.h"
@@ -87,25 +99,25 @@
     switch (orientation) {
         case 0:// default, portrait view 0°
             if(mipistd) wr_data8(0x0A); // this is in real a vertical flip enabled, seems most displays are vertical flipped
-            else wr_data8(0x48); //48 for 9341
+            else wr_data8(0x48); //for some other ILIxxxx
             set_width(LCDSIZE_X);
             set_height(LCDSIZE_Y);
             break;
         case 1:// landscape view +90°
             if(mipistd) wr_data8(0x28); 
-            else wr_data8(0x29);//28 for 9341
+            else wr_data8(0x29);//for some other ILIxxxx
             set_width(LCDSIZE_Y);
             set_height(LCDSIZE_X);
             break;
         case 2:// portrait view +180°
             if(mipistd) wr_data8(0x09); 
-            else wr_data8(0x99);//88 for 9341
+            else wr_data8(0x99);//for some other ILIxxxx
             set_width(LCDSIZE_X);
             set_height(LCDSIZE_Y);
             break;
         case 3:// landscape view -90°
             if(mipistd) wr_data8(0x2B); 
-            else wr_data8(0xF8);//E8 for 9341
+            else wr_data8(0xF8);//for some other ILIxxxx
             set_width(LCDSIZE_Y);
             set_height(LCDSIZE_X);
             break;
@@ -116,6 +128,7 @@
 {
     //ili9486 does not like truncated 2A/2B cmds, at least in par mode
     //setting only start column/page would speedup, but needs a windowmax() before, maybe implement later
+    //fixme for PAR_16: // cmd 2A/2B expects 8bit parameters
     wr_cmd8(0x2A);
     wr_data16(x);   //start column
     wr_data16(x+w-1);//end column