Added SPI burst mode to spi 8 bit.
Dependents: Bicycl_Computer_NUCLEO-F411RE Bicycl_Computer_NUCLEO-L476RG
Fork of UniGraphic by
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/SSD1306.h
- Committer:
- Geremia
- Date:
- 2015-03-02
- Revision:
- 19:1bdfb971b2c1
- Parent:
- 18:ffa58f1a680a
- Parent:
- 17:1dafb896c6f5
File content as of revision 19:1bdfb971b2c1:
#ifndef MBED_SSD1306_H #define MBED_SSD1306_H #include "mbed.h" #include "LCD.h" /** Class for SSD1306 display controller * to be copypasted and adapted for other controllers */ class SSD1306 : 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 */ SSD1306(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char* name, unsigned int LCDSIZE_X = 128, unsigned int LCDSIZE_Y = 64); /** 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 */ SSD1306(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char* name , unsigned int LCDSIZE_X = 128, unsigned int LCDSIZE_Y = 64); /** set the contrast of the screen * @note here overrided because of not standard value range * @param o contrast 0-255 */ virtual void set_contrast(int o); /** set automatc horizontal scroll mode * @param l_r direction - left = 0, right = 1 * @param s_page start page * @param e_page end page * @param speed time between horizontal shift. 0 slow .. 7 fast */ void horizontal_scroll(int l_r,int s_page,int e_page,int speed); /** automatic horizontal + vertical scroll mode * @param l_r direction - left = 0, right = 1 * @param s_page start page * @param e_page end page * @param v_off vertical offset for scroll * @param speed time between horizontal shift. 0 slow .. 7 fast */ void horiz_vert_scroll(int l_r,int s_page,int e_page,int v_off,int speed); /** end scroll mode * */ void end_scroll(void); 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