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/ILI9341.cpp

Revision:
7:bb0383b91104
Parent:
4:12ba0ecc2c1f
Child:
9:1749ae993cfe
--- a/Inits/ILI9341.cpp	Mon Feb 16 01:18:29 2015 +0000
+++ b/Inits/ILI9341.cpp	Tue Feb 17 11:02:06 2015 +0000
@@ -20,8 +20,8 @@
 {
     hw_reset();
     BusEnable(true);
+    identify(); // will collect tftID and set mipistd flag
     init();
-    mipistd=false;
     set_orientation(0);
     cls();
     locate(0,0); 
@@ -31,8 +31,8 @@
 {
     hw_reset(); //TFT class forwards to Protocol class
     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
-    mipistd=false;
     set_orientation(0); //TFT class does for MIPI standard and some ILIxxx
     cls();
     locate(0,0);