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;
    }
}

Inits/UC1608.h

Committer:
trevieze
Date:
2017-08-04
Revision:
36:0ced7cf0ec8c
Parent:
18:ffa58f1a680a

File content as of revision 36:0ced7cf0ec8c:

#ifndef MBED_UC1608_H
#define MBED_UC1608_H



#include "mbed.h"
#include "LCD.h"

/** Class for UC1608 display controller
* to be copypasted and adapted for other controllers
*/
class UC1608 : public LCD
{
 
 public:

    /** Create a PAR display interface
    * @param displayproto only supports PAR_8
    * @param port GPIO port name to use
    * @param CS pin connected to CS of display
    * @param reset pin connected to RESET of display
    * @param DC pin connected to data/command of display
    * @param WR pin connected to SDI of display
    * @param RD pin connected to RS of display
    * @param name The name used by the parent class to access the interface
    * @param LCDSIZE_X x size in pixel - optional
    * @param LCDSIZE_Y y size in pixel - optional
    */ 
    UC1608(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char* name, unsigned int LCDSIZE_X = 240, unsigned  int LCDSIZE_Y = 120);
  
    /** Create an SPI display interface
    * @param displayproto SPI_8 or SPI_16
    * @param Hz SPI speed in Hz
    * @param mosi SPI pin
    * @param miso SPI pin
    * @param sclk SPI pin
    * @param CS pin connected to CS of display
    * @param reset pin connected to RESET of display
    * @param DC pin connected to data/command of display
    * @param name The name used by the parent class to access the interface
    * @param LCDSIZE_X x size in pixel - optional
    * @param LCDSIZE_Y y size in pixel - optional
    */ 
    UC1608(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char* name , unsigned int LCDSIZE_X = 240, unsigned  int LCDSIZE_Y = 120);
  
    /** set the contrast of the screen
      * @note here overrided because of not standard command
      * @param o contrast 0-63
      */
    virtual void set_contrast(int o);
    
    /** Set ChipSelect high or low
    * @note here overriding the std one, cause CS inverted
    * @param enable 0/1   
    */
    virtual void BusEnable(bool enable);
  
protected:
    
    
    /** Init command sequence  
    */
    void init();
    
    /** set mirror mode
      * @note here overriding the LCD class default one because of not standard commands
      * @param mode NONE, X, Y, XY 
      */
    virtual void mirrorXY(mirror_t mode);
    
    



};
#endif