Library to control the EM027BS013 ePaper display from Pervasive Display.
Dependents: app_epaper_EM027BS013_LPC1549 lpc4088_ebb_epaper EaEpaper_EM027BS013 app_epaper_EM027BS013 ... more
EPD_controller.cpp
- Committer:
- embeddedartists
- Date:
- 2014-07-22
- Revision:
- 0:9297e33f50cf
File content as of revision 0:9297e33f50cf:
/** * \file * * \brief The interface for external application wants to update EPD * * Copyright (c) 2012-2014 Pervasive Displays Inc. All rights reserved. * * Authors: Pervasive Displays Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "EPD_controller.h" /** * \brief Initialize the EPD hardware setting */ void EPD_display_init(void) { EPD_init(); } /** * \brief Show image from the pointer of memory array * * \param EPD_type_index The defined EPD size * \param previous_image_ptr The pointer of memory that stores previous image * \param new_image_ptr The pointer of memory that stores new image */ void EPD_display_from_pointer(uint8_t EPD_type_index,uint8_t *previous_image_ptr, uint8_t *new_image_ptr) { /* Initialize EPD hardware */ EPD_init(); /* Power on COG Driver */ EPD_power_on(); /* Initialize COG Driver */ EPD_initialize_driver(EPD_type_index); /* Display image data on EPD from image array */ EPD_display_from_array_prt(EPD_type_index,previous_image_ptr,new_image_ptr); /* Power off COG Driver */ EPD_power_off (EPD_type_index); } /** * \brief Show image from Flash memory * * \param EPD_type_index The defined EPD size * \param previous_image_address The address of memory that stores previous image * \param new_image_address The address of memory that stores new image * \param On_EPD_read_flash Developer needs to create an external function to read flash */ void EPD_display_from_flash(uint8_t EPD_type_index,long previous_image_address, long new_image_address,EPD_read_flash_handler On_EPD_read_flash) { /* Initialize EPD hardware */ EPD_init(); /* Power on COG Driver */ EPD_power_on(); /* Initialize COG Driver */ EPD_initialize_driver(EPD_type_index); /* Display image data on EPD from Flash memory */ EPD_display_from_flash_prt(EPD_type_index,previous_image_address, new_image_address,On_EPD_read_flash); /* Power off COG Driver */ EPD_power_off (EPD_type_index); } /** * \brief Initialize the EPD hardware setting and COG driver * * \param EPD_type_index The defined EPD size */ void EPD_power_init(uint8_t EPD_type_index) { EPD_init(); EPD_power_on (); EPD_initialize_driver (EPD_type_index); } /** * \brief Show image from Flash memory when SPI is common used with COG and Flash * * \note * - This function must work with EPD_power_init when SPI is common used with * COG and Flash, or the charge pump doesn't work correctly. * - EPD_power_init -> write data to flash (switch SPI) -> EPD_display_from_flash_Ex * * \param EPD_type_index The defined EPD size * \param previous_image_address The address of memory that stores previous image * \param new_image_address The address of memory that stores new image * \param On_EPD_read_flash Developer needs to create an external function to read flash */ void EPD_display_from_flash_Ex(uint8_t EPD_type_index,long previous_image_address, long new_image_address,EPD_read_flash_handler On_EPD_read_flash) { /* Display image data on EPD from Flash memory */ EPD_display_from_flash_prt(EPD_type_index,previous_image_address, new_image_address,On_EPD_read_flash); /* Power off COG Driver */ EPD_power_off (EPD_type_index); }