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: Protocols/PAR16.cpp

Revision:
25:daacdcf34e52
Parent:
20:14daa48ffd4c
Child:
27:acb2594b8aa4
--- a/Protocols/PAR16.cpp	Mon Jun 22 02:21:06 2015 +0000
+++ b/Protocols/PAR16.cpp	Sun Oct 18 13:53:20 2015 +0000
@@ -15,6 +15,8 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+#if DEVICE_PORTINOUT 
+ 
 #include "PAR16.h"
 
 PAR16::PAR16(PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD)
@@ -224,4 +226,6 @@
 void PAR16::BusEnable(bool enable)
 {
     _CS = enable ? 0:1;
-}
\ No newline at end of file
+}
+
+#endif
\ No newline at end of file