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:
20:14daa48ffd4c
Parent:
15:b9483ba842c8
Child:
21:ae0a4eedfc90
--- a/Display/TFT.cpp	Mon Mar 02 10:52:26 2015 +0000
+++ b/Display/TFT.cpp	Mon Mar 23 14:08:04 2015 +0000
@@ -123,6 +123,7 @@
 void TFT::hw_reset()
     {
         proto->hw_reset();
+        BusEnable(true);
     }
 void TFT::BusEnable(bool enable)
     {
@@ -291,7 +292,7 @@
     {
         if(BGR2RGB(rback)==px) isBGR=true;
     }
- //   else debug("\r\nfail to identify gram read color format,\r\nsent %.4X read16 %.4X read18 %.4X", px, rback, rback18);    
+ //   debug("\r\nIdentify gram read color format,\r\nsent %.4X read16 %.4X(bgr%.4X) read18 %.4X(bgr%.4X)", px, rback, BGR2RGB(rback), rback18, BGR2RGB(rback18));   
 }
 // try to identify display controller
 void TFT::identify()