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/ILI9486.cpp

Revision:
11:b842b8e332cb
Parent:
10:668cf78ff93a
diff -r 668cf78ff93a -r b842b8e332cb Inits/ILI9486.cpp
--- a/Inits/ILI9486.cpp	Thu Feb 19 00:33:27 2015 +0000
+++ b/Inits/ILI9486.cpp	Fri Feb 20 21:32:25 2015 +0000
@@ -22,6 +22,7 @@
     BusEnable(true);
     identify(); // will collect tftID and set mipistd flag
     init();
+    auto_gram_read_format();// try to get read gram pixel format, could be 16bit or 18bit, RGB or BGR. Will set flags accordingly
     set_orientation(0);
  //   FastWindow(true); // most but not all controllers support this, even if datasheet tells they should. ILI9486 does not, at least in par mode
     cls();
@@ -34,6 +35,7 @@
     BusEnable(true); //TFT class forwards to Protocol class
     identify(); // will collect tftID and set mipistd flag
     init(); // per display custom init cmd sequence, implemented here
+    auto_gram_read_format();// try to get read gram pixel format, could be 16bit or 18bit, RGB or BGR. Will set flags accordingly
     set_orientation(0); //TFT class does for MIPI standard and some ILIxxx
  //   FastWindow(true); // most but not all controllers support this, even if datasheet tells they should. ILI9486 does not, at least in par mode
     cls();