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Add OLED driver to the StmartFusion demo.
This commit is contained in:
Richard Barry
parent
b42d4da7db
commit
7915c348c3
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/*****************************************************************************
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* (c) Copyright 2009 Actel Corporation. All rights reserved.
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*
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* Author : Actel Application Team
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* Rev : 1.0.0.0
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* Description: Device driver for the on-board OLED for SmartFusion KITS
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* Implementation of sample basic driver for OLED display found on Actel
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* SmartFusion development boards.
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* This code is intended as an example of using the SmartFusion I2C driver.
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*****************************************************************************/
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#include "oled.h"
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#include "../bsp_config.h"
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/***************************************************************************//**
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Command definitions for the SSD300 controller inside the OLED display module.
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*/
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#define CMD_DISPLAY_OFF_SET 0xD3
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#define CMD_PANEL_ON 0xAF
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#define CMD_PANEL_OFF 0xAE
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#define CMD_DC_DC 0xAD
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#define CMD_DC_DC_DEFAULT_ON 0x8B
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#define CMD_DC_DC_OFF 0x8A
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#define CMD_DISPLAY_ALL_ON 0xA5
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#define CMD_DISPLAY_ALL_OFF 0xA4
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#define CMD_DISPLAY_NON_INV 0xA6
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#define CMD_DISPLAY_INV 0xA7
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#define CMD_ARECOL_LPM 0xD8
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#define CMD_ARECOL_MONO 0x00
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#define CMD_ARECOL_COLOR 0x30
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#define CMD_LPM_ON 0x05
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#define CMD_LPM_OFF 0x00
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#define CMD_CONTRAST 0x81
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#define CMD_MIRROR_HORI_ON 0xC8
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#define CMD_MIRROR_HORI_OFF 0xC0
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#define CMD_MIRROR_VERT_ON 0xA1
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#define CMD_MIRROR_VERT_OFF 0xA0
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#define CMD_HORI_SCRL 0x26
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#define CMD_HORI_SCRL_ON 0x2F
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#define CMD_HORI_SCRL_OFF 0x2E
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#define CMD_MUX_RATIO 0xA8
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#define CMD_MUX_RATIO_31 0x23
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#define CMD_PAGE_0 0xB0
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#define CMD_PAGE_1 0xB1
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#define CMD_PAGE_2 0xB2
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#define CMD_PAGE_3 0xB3
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#define CMD_PAGE_4 0xB4
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#define CMD_PAGE_5 0xB5
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#define CMD_LOW_NIB_COL 0x00
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#define CMD_HIGH_NIB_COL 0x10
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#define CMD_START_LINE 0x50
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#define CONTRAST_DEFAULT 0xFF
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#define CONTRAST_25_PERC 0x40
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#define CONTRAST_100_PERC 0xFF
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#define CONTRAST_0_PERC 0x00
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#define SCROLL_1_COLUMN 0x01
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#define SCROLL_2_COLUMN 0x02
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#define SCROLL_3_COLUMN 0x03
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#define SCROLL_4_COLUMN 0x04
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#define SCROLL_PAGE_0 0x00
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#define SCROLL_PAGE_1 0x01
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#define SCROLL_PAGE_2 0x02
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#define SCROLL_PAGE_3 0x03
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#define SCROLL_PAGE_4 0x04
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#define SCROLL_PAGE_5 0x05
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#define SCROLL_12_FRAMES 0x00
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#define SCROLL_64_FRAMES 0x01
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#define SCROLL_128_FRAMES 0x02
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#define SCROLL_256_FRAMES 0x03
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#define SCROLL_PER_STEP 0x01
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#define PAGE0_COLOR_BAG 0x92
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#define PAGE1_COLOR_BAG 0x93
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/***************************************************************************//**
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OLED display I2C communication protocol control byte values. Used to indicate
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whether the byte following the control byte is to be interpreted by the OLED
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display as a command or data byte.
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*/
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#define OLED_COMMAND_CODE 0x80
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#define OLED_DATA_CODE 0xC0
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/***************************************************************************//**
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I2C serial address of OLED display.
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*/
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#define OLED_SLAVE_ADDRESS 0x78
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/***************************************************************************//**
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Bitmaps of the character set.
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Each character is 5 pixels wide and 7 pixels high.
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The table is indexed on ASCII character codes.
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*/
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#define CHARACTER_WIDTH 5
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const unsigned char oled_ascii_character_set[255][CHARACTER_WIDTH] =
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{
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x5F, 0x00, 0x00},
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{0x00, 0x07, 0x00, 0x07, 0x00},
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{0x14, 0x7F, 0x14, 0x7F, 0x14},
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{0x24, 0x2A, 0x7F, 0x2A, 0x12},
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{0x23, 0x13, 0x08, 0x64, 0x62},
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{0x36, 0x49, 0x55, 0x22, 0x50},
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{0x00, 0x05, 0x03, 0x00, 0x00},
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{0x00, 0x1C, 0x22, 0x41, 0x00},
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{0x00, 0x41, 0x22, 0x1C, 0x00},
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{0x14, 0x08, 0x3E, 0x08, 0x14},
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{0x08, 0x08, 0x3E, 0x08, 0x08},
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{0x00, 0x50, 0x30, 0x00, 0x00},
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{0x08, 0x08, 0x08, 0x08, 0x08},
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{0x00, 0x60, 0x60, 0x00, 0x00},
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{0x20, 0x10, 0x08, 0x04, 0x02},
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{0x3E, 0x51, 0x49, 0x45, 0x3E},
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{0x00, 0x42, 0x7F, 0x40, 0x00},
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{0x42, 0x61, 0x51, 0x49, 0x46},
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{0x21, 0x41, 0x45, 0x4B, 0x31},
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{0x18, 0x14, 0x12, 0x7F, 0x10},
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{0x27, 0x45, 0x45, 0x45, 0x39},
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{0x3C, 0x4A, 0x49, 0x49, 0x30},
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{0x01, 0x71, 0x09, 0x05, 0x03},
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{0x36, 0x49, 0x49, 0x49, 0x36},
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{0x06, 0x49, 0x49, 0x29, 0x1E},
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{0x00, 0x36, 0x36, 0x00, 0x00},
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{0x00, 0x56, 0x36, 0x00, 0x00},
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{0x08, 0x14, 0x22, 0x41, 0x00},
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{0x14, 0x14, 0x14, 0x14, 0x14},
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{0x00, 0x41, 0x22, 0x14, 0x08},
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{0x02, 0x01, 0x51, 0x09, 0x06},
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{0x32, 0x49, 0x79, 0x41, 0x3E},
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{0x7E, 0x11, 0x11, 0x11, 0x7E},
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{0x7F, 0x49, 0x49, 0x49, 0x36},
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{0x3E, 0x41, 0x41, 0x41, 0x22},
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{0x7F, 0x41, 0x41, 0x22, 0x1C},
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{0x7F, 0x49, 0x49, 0x49, 0x41},
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{0x7F, 0x09, 0x09, 0x09, 0x01},
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{0x3E, 0x41, 0x49, 0x49, 0x7A},
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{0x7F, 0x08, 0x08, 0x08, 0x7F},
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{0x00, 0x41, 0x7F, 0x41, 0x00},
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{0x20, 0x40, 0x41, 0x3F, 0x01},
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{0x7F, 0x08, 0x14, 0x22, 0x41},
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{0x3F, 0x40, 0x40, 0x40, 0x40},
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{0x7F, 0x02, 0x0C, 0x02, 0x7F},
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{0x7F, 0x04, 0x08, 0x10, 0x7F},
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{0x3E, 0x41, 0x41, 0x41, 0x3E},
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{0x7F, 0x09, 0x09, 0x09, 0x06},
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{0x3E, 0x41, 0x51, 0x21, 0x5E},
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{0x7F, 0x09, 0x19, 0x29, 0x46},
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{0x46, 0x49, 0x49, 0x49, 0x31},
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{0x01, 0x01, 0x7F, 0x01, 0x01},
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{0x3F, 0x40, 0x40, 0x40, 0x3F},
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{0x1F, 0x20, 0x40, 0x20, 0x1F},
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{0x3F, 0x40, 0x38, 0x40, 0x3F},
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{0x63, 0x14, 0x08, 0x14, 0x63},
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{0x07, 0x08, 0x70, 0x08, 0x07},
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{0x61, 0x51, 0x49, 0x45, 0x43},
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{0x00, 0x7F, 0x41, 0x41, 0x00},
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{0x02, 0x04, 0x08, 0x10, 0x20},
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{0x00, 0x41, 0x41, 0x7F, 0x00},
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{0x04, 0x02, 0x01, 0x02, 0x04},
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{0x40, 0x40, 0x40, 0x40, 0x40},
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{0x00, 0x01, 0x02, 0x04, 0x00},
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{0x20, 0x54, 0x54, 0x54, 0x78},
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{0x7F, 0x48, 0x44, 0x44, 0x38},
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{0x38, 0x44, 0x44, 0x44, 0x20},
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{0x30, 0x48, 0x48, 0x50, 0x7F},
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{0x38, 0x54, 0x54, 0x54, 0x18},
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{0x10, 0x7E, 0x11, 0x01, 0x02},
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{0x0C, 0x52, 0x52, 0x52, 0x3E},
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{0x7F, 0x08, 0x04, 0x04, 0x78},
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{0x00, 0x44, 0x7D, 0x40, 0x00},
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{0x20, 0x40, 0x44, 0x3D, 0x00},
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{0x7F, 0x10, 0x28, 0x44, 0x00},
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{0x00, 0x41, 0x7F, 0x40, 0x00},
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{0x7C, 0x04, 0x18, 0x04, 0x78},
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{0x7C, 0x08, 0x04, 0x04, 0x78},
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{0x38, 0x44, 0x44, 0x44, 0x38},
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{0x7C, 0x14, 0x14, 0x14, 0x08},
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{0x08, 0x14, 0x14, 0x18, 0x7C},
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{0x7C, 0x08, 0x04, 0x04, 0x08},
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{0x48, 0x54, 0x54, 0x54, 0x20},
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{0x04, 0x3F, 0x44, 0x40, 0x20},
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{0x3C, 0x40, 0x40, 0x20, 0x7C},
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{0x1C, 0x20, 0x40, 0x20, 0x1C},
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{0x3C, 0x40, 0x30, 0x40, 0x3C},
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{0x44, 0x28, 0x10, 0x28, 0x44},
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{0x0C, 0x50, 0x50, 0x50, 0x3C},
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{0x44, 0x64, 0x54, 0x4C, 0x44},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00},
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{0x07, 0x05, 0x07, 0x00, 0x00},
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{0x12, 0x19, 0x16, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00}
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};
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#define FIRST_CHARACTER 0
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/***************************************************************************//**
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The g_p_oled_i2c global variable is only used inside the OLED driver. It
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identifies the MSS I2C block used to communicate with the OLED display.
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*/
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static mss_i2c_instance_t * g_p_oled_i2c = OLED_I2C_INSTANCE;
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/***************************************************************************//**
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The OLED_set_cursor function sets the cursor position.
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@param line
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The line parameter specifies the line at which to set the cursor. It can
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take the values:
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- FIRST_LINE
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- SECOND_LINE
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@param char_offset
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The char_offset paraemter specifies the character offset on a line where to
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set the cursor location. It can be set to FIRST_CHARACTER to set the cursor
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at the start of a line.
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*/
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void OLED_set_cursor
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(
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uint8_t line,
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uint8_t char_offset
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);
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/***************************************************************************//**
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The OLED_write_string function displays the input string to the OLED panel.
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@param string
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The string parameter is a pointer to the zero-terminated to display on the
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OLED.
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*/
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void OLED_write_string( const char *string);
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/***************************************************************************//**
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The OLED_write_char function displays a single character to the display.
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@param data_char
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The data_char parameter is the ASCII code of the character to display.
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*/
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void OLED_write_char( const uint8_t data_char );
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/***************************************************************************//**
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OLED_init()
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See "oled.h" for details of how to use this function.
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*/
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void OLED_init(void )
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{
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uint8_t oled_init_sequence1[] =
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{
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OLED_COMMAND_CODE, CMD_DISPLAY_NON_INV,
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OLED_COMMAND_CODE, CMD_DISPLAY_ALL_OFF,
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OLED_COMMAND_CODE, CMD_MIRROR_HORI_ON,
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OLED_COMMAND_CODE, CMD_MIRROR_VERT_OFF,
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OLED_COMMAND_CODE, CMD_HORI_SCRL_OFF,
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OLED_COMMAND_CODE, CMD_CONTRAST,
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OLED_COMMAND_CODE, CONTRAST_DEFAULT,
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OLED_COMMAND_CODE, CMD_ARECOL_LPM,
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OLED_COMMAND_CODE, CMD_ARECOL_MONO^CMD_LPM_OFF
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};
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uint8_t oled_init_sequence2[] =
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{
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OLED_COMMAND_CODE, CMD_START_LINE,
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OLED_COMMAND_CODE, CMD_PANEL_ON
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};
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MSS_I2C_init( g_p_oled_i2c, OLED_SLAVE_ADDRESS, MSS_I2C_PCLK_DIV_60 );
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MSS_I2C_write( g_p_oled_i2c, OLED_SLAVE_ADDRESS, oled_init_sequence1, sizeof(oled_init_sequence1), MSS_I2C_RELEASE_BUS );
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MSS_I2C_wait_complete( g_p_oled_i2c );
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OLED_clear_display(BOTH_LINES);
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MSS_I2C_write( g_p_oled_i2c, OLED_SLAVE_ADDRESS, oled_init_sequence2, sizeof(oled_init_sequence2), MSS_I2C_RELEASE_BUS );
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MSS_I2C_wait_complete( g_p_oled_i2c );
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OLED_set_cursor( FIRST_LINE, FIRST_CHARACTER );
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}
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/***************************************************************************//**
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OLED_clear_display()
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See "oled.h" for details of how to use this function.
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*/
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void OLED_clear_display( oled_no_of_line LINES )
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{
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uint8_t i, j,start_line,end_line;
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uint8_t clear_8_columns[] =
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{
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OLED_DATA_CODE, 0x00,
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OLED_DATA_CODE, 0x00,
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OLED_DATA_CODE, 0x00,
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OLED_DATA_CODE, 0x00,
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OLED_DATA_CODE, 0x00,
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OLED_DATA_CODE, 0x00,
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OLED_DATA_CODE, 0x00,
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OLED_DATA_CODE, 0x00
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};
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switch(LINES)
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{
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case FIRST_LINE:
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{
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start_line = FIRST_LINE;
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end_line = FIRST_LINE;
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}
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case SECOND_LINE:
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{
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start_line = SECOND_LINE;
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end_line = SECOND_LINE;
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}
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case BOTH_LINES:
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{
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start_line = FIRST_LINE;
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end_line = SECOND_LINE;
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}
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}
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for( j = start_line; j <= end_line; ++j )
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{
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OLED_set_cursor( j, FIRST_CHARACTER );
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for( i = 0; i < 13; ++i )
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{
|
||||
MSS_I2C_write( g_p_oled_i2c, OLED_SLAVE_ADDRESS, clear_8_columns, sizeof(clear_8_columns), MSS_I2C_RELEASE_BUS );
|
||||
MSS_I2C_wait_complete( g_p_oled_i2c );
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/***************************************************************************//**
|
||||
OLED_set_cursor()
|
||||
See definition of OLED_set_cursor() for details of how to use this function.
|
||||
*/
|
||||
void OLED_set_cursor
|
||||
(
|
||||
uint8_t line,
|
||||
uint8_t char_offset
|
||||
)
|
||||
{
|
||||
uint8_t command_sequence[] =
|
||||
{
|
||||
OLED_COMMAND_CODE, CMD_LOW_NIB_COL,
|
||||
OLED_COMMAND_CODE, CMD_HIGH_NIB_COL,
|
||||
OLED_COMMAND_CODE, CMD_PAGE_0
|
||||
};
|
||||
uint8_t low_nib, high_nib;
|
||||
|
||||
++char_offset;
|
||||
char_offset *= CHARACTER_WIDTH;
|
||||
low_nib = 0x0F & char_offset;
|
||||
high_nib = (0xF0 & char_offset) >> 4;
|
||||
line += 2;
|
||||
|
||||
command_sequence[1] |= low_nib;
|
||||
command_sequence[3] |= high_nib;
|
||||
command_sequence[5] |= line;
|
||||
MSS_I2C_write( g_p_oled_i2c, OLED_SLAVE_ADDRESS, command_sequence, sizeof(command_sequence), MSS_I2C_RELEASE_BUS );
|
||||
MSS_I2C_wait_complete( g_p_oled_i2c );
|
||||
}
|
||||
|
||||
/***************************************************************************//**
|
||||
OLED_write_string()
|
||||
See definition of OLED_write_string for details of how to use this function.
|
||||
*/
|
||||
void OLED_write_string
|
||||
(
|
||||
const char *string
|
||||
)
|
||||
{
|
||||
while (*string != 0)
|
||||
{
|
||||
OLED_write_char( *string );
|
||||
++string;
|
||||
}
|
||||
}
|
||||
|
||||
/***************************************************************************//**
|
||||
OLED_write_char()
|
||||
See definition of OLED_write_char() for details of how to use this function.
|
||||
*/
|
||||
void OLED_write_char
|
||||
(
|
||||
const uint8_t data_char
|
||||
)
|
||||
{
|
||||
uint8_t txbuff[10];
|
||||
uint8_t i;
|
||||
|
||||
for ( i = 0; i < CHARACTER_WIDTH; ++i )
|
||||
{
|
||||
txbuff[i * 2] = OLED_DATA_CODE;
|
||||
txbuff[(i * 2) + 1] = oled_ascii_character_set[data_char][i];
|
||||
}
|
||||
MSS_I2C_write( g_p_oled_i2c, OLED_SLAVE_ADDRESS, txbuff, sizeof(txbuff), MSS_I2C_RELEASE_BUS );
|
||||
MSS_I2C_wait_complete( g_p_oled_i2c );
|
||||
}
|
||||
|
||||
/***************************************************************************//**
|
||||
OLED_horizontal_scroll()
|
||||
See "oled.h" for details of how to use this function.
|
||||
*/
|
||||
void OLED_horizontal_scroll(struct oled_data * horiz_scroll)
|
||||
{
|
||||
uint8_t horiz_scroll_on_off[] =
|
||||
{
|
||||
OLED_COMMAND_CODE, CMD_HORI_SCRL_OFF,
|
||||
};
|
||||
|
||||
uint8_t horiz_scroll_setup_data[] =
|
||||
{
|
||||
OLED_COMMAND_CODE, CMD_HORI_SCRL,
|
||||
OLED_COMMAND_CODE, SCROLL_PER_STEP,
|
||||
OLED_COMMAND_CODE, SCROLL_PAGE_0,
|
||||
OLED_COMMAND_CODE, SCROLL_12_FRAMES,
|
||||
OLED_COMMAND_CODE, SCROLL_PAGE_1,
|
||||
};
|
||||
MSS_I2C_write( g_p_oled_i2c, OLED_SLAVE_ADDRESS, horiz_scroll_on_off, sizeof(horiz_scroll_on_off), MSS_I2C_RELEASE_BUS );
|
||||
MSS_I2C_wait_complete( g_p_oled_i2c );
|
||||
|
||||
if(horiz_scroll->on_off == 1)
|
||||
{
|
||||
horiz_scroll_setup_data[3] = horiz_scroll->column_scrool_per_step;
|
||||
horiz_scroll_setup_data[5] = horiz_scroll->start_page;
|
||||
horiz_scroll_setup_data[7] = horiz_scroll->time_intrval_btw_scroll_step;
|
||||
horiz_scroll_setup_data[9] = horiz_scroll->end_page;
|
||||
MSS_I2C_write( g_p_oled_i2c, OLED_SLAVE_ADDRESS, horiz_scroll_setup_data, sizeof(horiz_scroll_setup_data), MSS_I2C_RELEASE_BUS );
|
||||
MSS_I2C_wait_complete( g_p_oled_i2c );
|
||||
|
||||
horiz_scroll_on_off[1] = CMD_HORI_SCRL_ON;
|
||||
MSS_I2C_write( g_p_oled_i2c, OLED_SLAVE_ADDRESS, horiz_scroll_on_off, sizeof(horiz_scroll_on_off), MSS_I2C_RELEASE_BUS );
|
||||
MSS_I2C_wait_complete( g_p_oled_i2c );
|
||||
}
|
||||
}
|
||||
|
||||
/***************************************************************************//**
|
||||
OLED_contrast()
|
||||
See "oled.h" for details of how to use this function.
|
||||
*/
|
||||
void OLED_contrast(uint8_t color_contrast)
|
||||
{
|
||||
uint8_t oled_contrast[] =
|
||||
{
|
||||
OLED_COMMAND_CODE, CMD_CONTRAST,
|
||||
OLED_COMMAND_CODE, CONTRAST_DEFAULT,
|
||||
};
|
||||
|
||||
oled_contrast[3] = color_contrast;
|
||||
MSS_I2C_write( g_p_oled_i2c, OLED_SLAVE_ADDRESS, oled_contrast, sizeof(oled_contrast), MSS_I2C_RELEASE_BUS );
|
||||
MSS_I2C_wait_complete( g_p_oled_i2c );
|
||||
|
||||
}
|
||||
|
||||
/***************************************************************************//**
|
||||
OLED_write_data()
|
||||
See "oled.h" for details of how to use this function.
|
||||
*/
|
||||
void OLED_write_data(struct oled_data* data, oled_no_of_line LINES)
|
||||
{
|
||||
uint8_t line;
|
||||
uint8_t char_offset;
|
||||
char *string;
|
||||
|
||||
switch(LINES)
|
||||
{
|
||||
|
||||
case FIRST_LINE:
|
||||
{
|
||||
OLED_clear_display(FIRST_LINE);
|
||||
line = data->line1;
|
||||
char_offset = data->char_offset1;
|
||||
string = data->string1;
|
||||
}
|
||||
|
||||
case SECOND_LINE:
|
||||
{
|
||||
OLED_clear_display(SECOND_LINE);
|
||||
line = data->line2;
|
||||
char_offset = data->char_offset2;
|
||||
string = data->string2;
|
||||
}
|
||||
|
||||
case BOTH_LINES:
|
||||
{
|
||||
OLED_clear_display(BOTH_LINES);
|
||||
line = data->line1;
|
||||
char_offset = data->char_offset1;
|
||||
string = data->string1;
|
||||
OLED_set_cursor(line,char_offset);
|
||||
OLED_write_string(string);
|
||||
line = data->line2;
|
||||
char_offset = data->char_offset2;
|
||||
string = data->string2;
|
||||
}
|
||||
|
||||
OLED_set_cursor(line,char_offset);
|
||||
OLED_write_string(string);
|
||||
OLED_contrast(data->contrast_val);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,209 @@
|
|||
/*****************************************************************************
|
||||
* (c) Copyright 2009 Actel Corporation. All rights reserved.
|
||||
*
|
||||
* Author : Actel Application Team
|
||||
* Rev : 1.0.0.0
|
||||
* Description: Device driver for the on-board OLED for SmartFusion KITS
|
||||
* API of sample basic driver for OLED display found on Actel SmartFusion
|
||||
* development boards.
|
||||
* This code is intended as an example of using the SmartFusion I2C driver.
|
||||
*
|
||||
*/
|
||||
#ifndef OLED_H_
|
||||
#define OLED_H_
|
||||
|
||||
#include "../BSP/i2c_driver/i2c.h"
|
||||
|
||||
#define OLED_HORIZ_SCROLL_ON 0x01
|
||||
#define OLED_HORIZ_SCROLL_OFF 0x00
|
||||
#define OLED_HORIZ_SCROLL_STEP 0x08
|
||||
#define OLED_CONTRAST_VAL 0xFF
|
||||
#define OLED_START_PAGE 0x01
|
||||
#define OLED_HORIZ_SCROLL_TINVL 0x00
|
||||
#define OLED_END_PAGE 0x05
|
||||
/*-------------------------------------------------------------------------*/
|
||||
/* The oled_no_of_line type represents number of lines to be written on OLED.
|
||||
FIRST LINE : The OLED cursor is set to line number 1 and only 1 line is
|
||||
printed on OLED
|
||||
SECOND_LINE : The OLED cursor is set to line number 2 and only 1 line is
|
||||
printed on OLED
|
||||
BOTH_LINES : The OLED cursor is set to line number 1 and line 1 and line 2
|
||||
are printed on OLED
|
||||
*/
|
||||
typedef enum {
|
||||
FIRST_LINE = 0,
|
||||
SECOND_LINE,
|
||||
BOTH_LINES
|
||||
} oled_no_of_line;
|
||||
|
||||
/*-------------------------------------------------------------------------*//**
|
||||
oled_data
|
||||
------------------------------------------------------------------------------
|
||||
There is one instance of this structure for OLED data. Instances of this
|
||||
structure is used to provide the data to OLED. A pointer to an instance of
|
||||
the oled_data structure is passed as the parameter OLED driver functions.
|
||||
*/
|
||||
struct oled_data
|
||||
{
|
||||
/* Represents line number, where String 1 has to be printed */
|
||||
uint8_t line1;
|
||||
/* Represents character offset within the line1, from where String 1 has to be
|
||||
* printed */
|
||||
uint8_t char_offset1;
|
||||
/* Represents line number, where String 2 has to be printed */
|
||||
uint8_t line2;
|
||||
/* Represents character offset within the line2, from where String 2 has to be
|
||||
* printed */
|
||||
uint8_t char_offset2;
|
||||
/* String 1 holds the data to be displayed on line 1 of OLED, It has to be
|
||||
* less that 49 characters*/
|
||||
char *string1;
|
||||
/* String 1 holds the data to be displayed on line 2 of OLED, It has to be
|
||||
* less that 49 characters*/
|
||||
char *string2;
|
||||
/* Holds the contrast value to be set for String 1 and String 2 */
|
||||
uint8_t contrast_val;
|
||||
/* Represents ON or OFF for horizontal scrolling */
|
||||
uint8_t on_off;
|
||||
/* Represents number of coumns scrolls per step for horizontal scroll*/
|
||||
unsigned char column_scrool_per_step;
|
||||
/* Represents start page for horizontal scroll*/
|
||||
unsigned char start_page;
|
||||
/* Represents time interval for horizontal scroll*/
|
||||
unsigned char time_intrval_btw_scroll_step;
|
||||
/* Represents end page for horizontal scroll*/
|
||||
unsigned char end_page;
|
||||
|
||||
};
|
||||
/***************************************************************************//**
|
||||
The following defines can be used as parameter to the OLED_set_cursor()
|
||||
function.
|
||||
*/
|
||||
|
||||
/***************************************************************************//**
|
||||
The OLED_init function initializes the OLED display.
|
||||
*/
|
||||
void OLED_init( void );
|
||||
|
||||
/***************************************************************************//**
|
||||
This function(OLED_clear_display) clears the content of the display RAM
|
||||
based on the LINES input.
|
||||
------------------------------------------------------------------------------
|
||||
@param oled_no_of_line:
|
||||
The oled_no_of_line parameter enum that holds Number of lines.
|
||||
If FIRST_LINE is passed as parameter to this function thnen, this functions
|
||||
clears only First line that is 0
|
||||
If SECOND_LINE is passed as parameter to this function thnen, this functions
|
||||
clears only Second line that is 1
|
||||
If BOTH_LINE is passed as parameter to this function thnen, this functions
|
||||
clears entire OLED display.
|
||||
*/
|
||||
void OLED_clear_display( oled_no_of_line LINES );
|
||||
|
||||
/*-------------------------------------------------------------------------*//**
|
||||
OLED Write data.
|
||||
------------------------------------------------------------------------------
|
||||
This function (OLED_write_data ) writes the data to OLED basedon the
|
||||
parameters passed to this function.
|
||||
------------------------------------------------------------------------------
|
||||
@param data:
|
||||
The data parameter is a pointer to an oled_data structure, that holds
|
||||
different fields of data to be required for OLED (see the oled_data structure
|
||||
definition).
|
||||
|
||||
@param oled_no_of_line:
|
||||
The oled_no_of_line parameter enum that holds Number of lines.
|
||||
If FIRST_LINE is passed as parameter to this function thnen, this functions
|
||||
wtites string 1 at FIRST LINE
|
||||
If SECOND_LINE is passed as parameter to this function thnen, this functions
|
||||
wtites string 1 at SECOND LINE
|
||||
If BOTH_LINE is passed as parameter to this function thnen, this functions
|
||||
wtites string 1 and string 2 at FIRST LINE and SECOND LINE respectively.
|
||||
Example:
|
||||
@code
|
||||
#include "drivers/mss_watchdog/mss_watchdog.h"
|
||||
#include "oled.h"
|
||||
#define FIRST_CHARACTER 0
|
||||
|
||||
int main()
|
||||
{
|
||||
|
||||
char *string1="SmartFusion";
|
||||
char *string2="INNOVATIVE ";
|
||||
struct oled_data write_data;
|
||||
|
||||
write_data.line1 = FIRST_LINE;
|
||||
write_data.char_offset1 = FIRST_CHARACTER;
|
||||
write_data.string1 = string1;
|
||||
write_data.line2 = SECOND_LINE;
|
||||
write_data.char_offset2 = FIRST_CHARACTER;
|
||||
write_data.string2 = string2;
|
||||
write_data.contrast_val = 0x01;
|
||||
|
||||
MSS_WD_disable();
|
||||
OLED_init();
|
||||
OLED_write_data(&write_data,BOTH_LINES);
|
||||
return 0;
|
||||
}
|
||||
@endcode
|
||||
*/
|
||||
|
||||
void OLED_write_data(struct oled_data * data, oled_no_of_line flag);
|
||||
|
||||
/*-------------------------------------------------------------------------*//**
|
||||
OLED Horizontal scrolling.
|
||||
------------------------------------------------------------------------------
|
||||
This function (OLED_horizontal_scroll ) enbles the Horizontal scrolling.
|
||||
------------------------------------------------------------------------------
|
||||
@param data:
|
||||
The horiz_scroll parameter is a pointer to an oled_data structure, that holds
|
||||
different fields of data to be required for OLED (see the oled_data structure
|
||||
definition).
|
||||
Example:
|
||||
@code
|
||||
|
||||
int main()
|
||||
{
|
||||
|
||||
char *string1="SmartFusion";
|
||||
char *string2="INNOVATIVE ";
|
||||
struct oled_data write_data;
|
||||
|
||||
write_data.line1 = FIRST_LINE;
|
||||
write_data.char_offset1 = FIRST_CHARACTER;
|
||||
write_data.string1 = string1;
|
||||
write_data.line2 = SECOND_LINE;
|
||||
write_data.char_offset2 = FIRST_CHARACTER;
|
||||
write_data.string2 = string2;
|
||||
write_data.contrast_val = 0x01;
|
||||
write_data.on_off = 0x01;
|
||||
write_data.column_scrool_per_step = 0x08;
|
||||
write_data.start_page = 0x01;
|
||||
write_data.time_intrval_btw_scroll_step = 0x00;
|
||||
write_data.end_page = 0x05;
|
||||
|
||||
MSS_WD_disable();
|
||||
OLED_init();
|
||||
OLED_write_data(&write_data,BOTH_LINES);
|
||||
OLED_horizontal_scroll(&write_data);
|
||||
return 0;
|
||||
}
|
||||
@endcode
|
||||
*/
|
||||
|
||||
void OLED_horizontal_scroll(struct oled_data * horiz_scroll);
|
||||
|
||||
/***************************************************************************//**
|
||||
This function(OLED_contrast) sets ths conrtast to the data displayed on the
|
||||
OLED.
|
||||
------------------------------------------------------------------------------
|
||||
@param color_contrast:
|
||||
The color_contrast parameter that holds contrast value.
|
||||
The color_contrast values should be in the range of 1 to 256.
|
||||
*/
|
||||
void OLED_contrast(uint8_t color_contrast);
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in a new issue