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/*********************************************************************
This is an Arduino library for our Monochrome SHARP Memory Displays
Pick one up today in the adafruit shop!
------> http://www.adafruit.com/products/1393
These displays use SPI to communicate, 3 pins are required to
interface
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
BSD license, check license.txt for more information
All text above, and the splash screen must be included in any redistribution
*********************************************************************/
#ifndef LIB_ADAFRUIT_SHARPMEM
#define LIB_ADAFRUIT_SHARPMEM
#include <Adafruit_GFX.h>
#include <Adafruit_SPIDevice.h>
#include <Arduino.h>
#if defined(RAMSTART) && defined(RAMEND) && ((RAMEND - RAMSTART) < 4096)
#warning "Display may not work on devices with less than 4K RAM"
#endif
#define SHARPMEM_BIT_WRITECMD (0x01) // 0x80 in LSB format
#define SHARPMEM_BIT_VCOM (0x02) // 0x40 in LSB format
#define SHARPMEM_BIT_CLEAR (0x04) // 0x20 in LSB format
/**
* @brief Class to control a Sharp memory display
*
*/
class Adafruit_SharpMem : public Adafruit_GFX {
public:
Adafruit_SharpMem(uint8_t clk, uint8_t mosi, uint8_t cs, uint16_t w = 96,
uint16_t h = 96, uint32_t freq = 2000000);
Adafruit_SharpMem(SPIClass *theSPI, uint8_t cs, uint16_t w = 96,
uint16_t h = 96, uint32_t freq = 2000000);
boolean begin();
void drawPixel(int16_t x, int16_t y, uint16_t color);
uint8_t getPixel(uint16_t x, uint16_t y);
void clearDisplay();
void refresh(void);
void clearDisplayBuffer();
/**
* @brief Get a pointer to the display buffer.
* This allows direct access to the internal framebuffer.
*
* @return uint8_t* Pointer to the framebuffer memory.
*/
uint8_t *getBuffer() { return sharpmem_buffer; }
private:
Adafruit_SPIDevice *spidev = NULL;
uint8_t *sharpmem_buffer = NULL;
uint8_t _cs;
uint8_t _sharpmem_vcom;
};
#endif
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