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934 lines
30 KiB
C
934 lines
30 KiB
C
//*****************************************************************************
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//
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// osram128x64x4.c - Driver for the OSRAM 128x64x4 graphical OLED display.
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//
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// Copyright (c) 2006-2007 Luminary Micro, Inc. All rights reserved.
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//
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// Software License Agreement
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//
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// Luminary Micro, Inc. (LMI) is supplying this software for use solely and
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// exclusively on LMI's microcontroller products.
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//
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// The software is owned by LMI and/or its suppliers, and is protected under
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// applicable copyright laws. All rights are reserved. Any use in violation
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// of the foregoing restrictions may subject the user to criminal sanctions
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// under applicable laws, as well as to civil liability for the breach of the
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// terms and conditions of this license.
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//
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// THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
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// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
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// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
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// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
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//
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// This is part of revision 1408 of the Stellaris Peripheral Driver Library.
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//
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//*****************************************************************************
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//*****************************************************************************
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//
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//! \addtogroup ek_lm3sx965_api
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//! @{
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//
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//*****************************************************************************
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#include "hw_ssi.h"
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#include "hw_memmap.h"
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#include "hw_sysctl.h"
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#include "hw_types.h"
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#include "debug.h"
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#include "gpio.h"
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#include "ssi.h"
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#include "sysctl.h"
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#include "osram128x64x4.h"
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//*****************************************************************************
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//
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// Flag to indicate if SSI port is enabled for OSRAM usage.
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//
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//*****************************************************************************
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static volatile tBoolean g_bSSIEnabled = false;
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//*****************************************************************************
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//
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// Define the OSRAM 128x64x4 Remap Setting(s). This will be used in
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// several places in the code to switch between vertical and horizontal
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// address incrementing.
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//
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// The Remap Command (0xA0) takes one 8-bit parameter. The parameter is
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// defined as follows.
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//
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// Bit 7: Reserved
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// Bit 6: Disable(0)/Enable(1) COM Split Odd Even
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// When enabled, the COM signals are split Odd on one side, even on
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// the other. Otherwise, they are split 0-39 on one side, 40-79 on
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// the other.
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// Bit 5: Reserved
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// Bit 4: Disable(0)/Enable(1) COM Remap
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// When Enabled, ROW 0-79 map to COM 79-0 (i.e. reverse row order)
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// Bit 3: Reserved
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// Bit 2: Horizontal(0)/Vertical(1) Address Increment
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// When set, data RAM address will increment along the column rather
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// than along the row.
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// Bit 1: Disable(0)/Enable(1) Nibble Remap
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// When enabled, the upper and lower nibbles in the DATA bus for access
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// to the data RAM are swapped.
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// Bit 0: Disable(0)/Enable(1) Column Address Remap
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// When enabled, DATA RAM columns 0-63 are remapped to Segment Columns
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// 127-0.
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//
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//*****************************************************************************
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#define OSRAM_INIT_REMAP 0x52
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#define OSRAM_INIT_OFFSET 0x4C
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static const unsigned char g_pucOSRAM128x64x4VerticalInc[] = { 0xA0, 0x56 };
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static const unsigned char g_pucOSRAM128x64x4HorizontalInc[] = { 0xA0, 0x52 };
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//*****************************************************************************
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//
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// A 5x7 font (in a 6x8 cell, where the sixth column is omitted from this
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// table) for displaying text on the OLED display. The data is organized as
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// bytes from the left column to the right column, with each byte containing
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// the top row in the LSB and the bottom row in the MSB.
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//
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// Note: This is the same font data that is used in the EK-LM3S811
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// osram96x16x1 driver. The single bit-per-pixel is expaned in the StringDraw
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// function to the appropriate four bit-per-pixel gray scale format.
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//
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//*****************************************************************************
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static const unsigned char g_pucFont[96][5] =
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{
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{ 0x00, 0x00, 0x00, 0x00, 0x00 }, // " "
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{ 0x00, 0x00, 0x4f, 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 }, // 0
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{ 0x00, 0x42, 0x7f, 0x40, 0x00 }, // 1
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{ 0x42, 0x61, 0x51, 0x49, 0x46 }, // 2
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{ 0x21, 0x41, 0x45, 0x4b, 0x31 }, // 3
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{ 0x18, 0x14, 0x12, 0x7f, 0x10 }, // 4
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{ 0x27, 0x45, 0x45, 0x45, 0x39 }, // 5
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{ 0x3c, 0x4a, 0x49, 0x49, 0x30 }, // 6
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{ 0x01, 0x71, 0x09, 0x05, 0x03 }, // 7
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{ 0x36, 0x49, 0x49, 0x49, 0x36 }, // 8
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{ 0x06, 0x49, 0x49, 0x29, 0x1e }, // 9
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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 }, // A
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{ 0x7f, 0x49, 0x49, 0x49, 0x36 }, // B
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{ 0x3e, 0x41, 0x41, 0x41, 0x22 }, // C
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{ 0x7f, 0x41, 0x41, 0x22, 0x1c }, // D
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{ 0x7f, 0x49, 0x49, 0x49, 0x41 }, // E
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{ 0x7f, 0x09, 0x09, 0x09, 0x01 }, // F
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{ 0x3e, 0x41, 0x49, 0x49, 0x7a }, // G
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{ 0x7f, 0x08, 0x08, 0x08, 0x7f }, // H
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{ 0x00, 0x41, 0x7f, 0x41, 0x00 }, // I
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{ 0x20, 0x40, 0x41, 0x3f, 0x01 }, // J
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{ 0x7f, 0x08, 0x14, 0x22, 0x41 }, // K
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{ 0x7f, 0x40, 0x40, 0x40, 0x40 }, // L
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{ 0x7f, 0x02, 0x0c, 0x02, 0x7f }, // M
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{ 0x7f, 0x04, 0x08, 0x10, 0x7f }, // N
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{ 0x3e, 0x41, 0x41, 0x41, 0x3e }, // O
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{ 0x7f, 0x09, 0x09, 0x09, 0x06 }, // P
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{ 0x3e, 0x41, 0x51, 0x21, 0x5e }, // Q
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{ 0x7f, 0x09, 0x19, 0x29, 0x46 }, // R
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{ 0x46, 0x49, 0x49, 0x49, 0x31 }, // S
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{ 0x01, 0x01, 0x7f, 0x01, 0x01 }, // T
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{ 0x3f, 0x40, 0x40, 0x40, 0x3f }, // U
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{ 0x1f, 0x20, 0x40, 0x20, 0x1f }, // V
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{ 0x3f, 0x40, 0x38, 0x40, 0x3f }, // W
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{ 0x63, 0x14, 0x08, 0x14, 0x63 }, // X
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{ 0x07, 0x08, 0x70, 0x08, 0x07 }, // Y
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{ 0x61, 0x51, 0x49, 0x45, 0x43 }, // Z
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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 }, // a
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{ 0x7f, 0x48, 0x44, 0x44, 0x38 }, // b
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{ 0x38, 0x44, 0x44, 0x44, 0x20 }, // c
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{ 0x38, 0x44, 0x44, 0x48, 0x7f }, // d
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{ 0x38, 0x54, 0x54, 0x54, 0x18 }, // e
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{ 0x08, 0x7e, 0x09, 0x01, 0x02 }, // f
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{ 0x0c, 0x52, 0x52, 0x52, 0x3e }, // g
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{ 0x7f, 0x08, 0x04, 0x04, 0x78 }, // h
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{ 0x00, 0x44, 0x7d, 0x40, 0x00 }, // i
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{ 0x20, 0x40, 0x44, 0x3d, 0x00 }, // j
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{ 0x7f, 0x10, 0x28, 0x44, 0x00 }, // k
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{ 0x00, 0x41, 0x7f, 0x40, 0x00 }, // l
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{ 0x7c, 0x04, 0x18, 0x04, 0x78 }, // m
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{ 0x7c, 0x08, 0x04, 0x04, 0x78 }, // n
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{ 0x38, 0x44, 0x44, 0x44, 0x38 }, // o
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{ 0x7c, 0x14, 0x14, 0x14, 0x08 }, // p
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{ 0x08, 0x14, 0x14, 0x18, 0x7c }, // q
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{ 0x7c, 0x08, 0x04, 0x04, 0x08 }, // r
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{ 0x48, 0x54, 0x54, 0x54, 0x20 }, // s
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{ 0x04, 0x3f, 0x44, 0x40, 0x20 }, // t
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{ 0x3c, 0x40, 0x40, 0x20, 0x7c }, // u
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{ 0x1c, 0x20, 0x40, 0x20, 0x1c }, // v
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{ 0x3c, 0x40, 0x30, 0x40, 0x3c }, // w
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{ 0x44, 0x28, 0x10, 0x28, 0x44 }, // x
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{ 0x0c, 0x50, 0x50, 0x50, 0x3c }, // y
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{ 0x44, 0x64, 0x54, 0x4c, 0x44 }, // z
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{ 0x00, 0x08, 0x36, 0x41, 0x00 }, // {
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{ 0x00, 0x00, 0x7f, 0x00, 0x00 }, // |
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{ 0x00, 0x41, 0x36, 0x08, 0x00 }, // }
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{ 0x02, 0x01, 0x02, 0x04, 0x02 }, // ~
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{ 0x02, 0x01, 0x02, 0x04, 0x02 }, // ~
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};
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//*****************************************************************************
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//
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// The sequence of commands used to initialize the SSD0303 controller. Each
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// command is described as follows: there is a byte specifying the number of
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// bytes in the command sequence, followed by that many bytes of command data.
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// Note: This initialization sequence is derived from OSRAM App Note AN018.
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//
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//*****************************************************************************
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static const unsigned char g_pucOSRAM128x64x4Init[] =
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{
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//
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// Column Address
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//
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4, 0x15, 0, 63, 0xe3,
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//
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// Row Address
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//
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4, 0x75, 0, 63, 0xe3,
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//
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// Contrast Control
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//
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3, 0x81, 50, 0xe3,
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//
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// Half Current Range
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//
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2, 0x85, 0xe3,
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//
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// Display Re-map
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//
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3, 0xA0, OSRAM_INIT_REMAP, 0xe3,
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//
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// Display Start Line
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//
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3, 0xA1, 0, 0xe3,
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//
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// Display Offset
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//
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3, 0xA2, OSRAM_INIT_OFFSET, 0xe3,
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//
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// Display Mode Normal
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//
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2, 0xA4, 0xe3,
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//
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// Multiplex Ratio
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//
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3, 0xA8, 63, 0xe3,
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//
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// Phase Length
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//
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3, 0xB1, 0x22, 0xe3,
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//
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// Row Period
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//
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3, 0xB2, 70, 0xe3,
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//
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// Display Clock Divide
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//
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3, 0xB3, 0xF1, 0xe3,
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//
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// VSL
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//
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3, 0xBF, 0x0D, 0xe3,
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//
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// VCOMH
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//
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3, 0xBE, 0x02, 0xe3,
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//
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// VP
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//
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3, 0xBC, 0x10, 0xe3,
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//
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// Gamma
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//
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10, 0xB8, 0x01, 0x11, 0x22, 0x32, 0x43, 0x54, 0x65, 0x76, 0xe3,
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//
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// Set DC-DC
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3, 0xAD, 0x03, 0xe3,
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//
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// Display ON/OFF
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//
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2, 0xAF, 0xe3,
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};
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//*****************************************************************************
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//
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//! \internal
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//!
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//! Write a sequence of command bytes to the SSD0323 controller.
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//!
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//! The data is written in a polled fashion; this function will not return
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//! until the entire byte sequence has been written to the controller.
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//!
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//! \return None.
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//
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//*****************************************************************************
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static void
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OSRAMWriteCommand(const unsigned char *pucBuffer, unsigned long ulCount)
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{
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unsigned long ulTemp;
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//
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// Return iff SSI port is not enabled for OSRAM.
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//
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if(!g_bSSIEnabled)
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{
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return;
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}
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//
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// Clear the command/control bit to enable command mode.
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//
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GPIOPinWrite(GPIO_PORTC_BASE, GPIO_PIN_7, 0);
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//
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// Loop while there are more bytes left to be transferred.
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//
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while(ulCount != 0)
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{
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//
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// Write the next byte to the controller.
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//
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SSIDataPut(SSI0_BASE, *pucBuffer++);
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//
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// Dummy read to drain the fifo and time the GPIO signal.
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//
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SSIDataGet(SSI0_BASE, &ulTemp);
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//
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// Decrement the BYTE counter.
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//
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ulCount--;
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}
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}
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//*****************************************************************************
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//
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//! \internal
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//!
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//! Write a sequence of data bytes to the SSD0323 controller.
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//!
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//! The data is written in a polled fashion; this function will not return
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//! until the entire byte sequence has been written to the controller.
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//!
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//! \return None.
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//
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//*****************************************************************************
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static void
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OSRAMWriteData(const unsigned char *pucBuffer, unsigned long ulCount)
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{
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unsigned long ulTemp;
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|
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//
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// Return iff SSI port is not enabled for OSRAM.
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//
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if(!g_bSSIEnabled)
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{
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return;
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}
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//
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// Set the command/control bit to enable data mode.
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//
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GPIOPinWrite(GPIO_PORTC_BASE, GPIO_PIN_7, GPIO_PIN_7);
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//
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// Loop while there are more bytes left to be transferred.
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//
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while(ulCount != 0)
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{
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//
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// Write the next byte to the controller.
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//
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SSIDataPut(SSI0_BASE, *pucBuffer++);
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//
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// Dummy read to drain the fifo and time the GPIO signal.
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//
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SSIDataGet(SSI0_BASE, &ulTemp);
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//
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// Decrement the BYTE counter.
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//
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ulCount--;
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}
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}
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|
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//*****************************************************************************
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//
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//! Clears the OLED display.
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//!
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//! This function will clear the display RAM. All pixels in the display will
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//! be turned off.
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//!
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//! This function is contained in <tt>osram128x64x4.c</tt>, with
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//! <tt>osram128x64x4.h</tt> containing the API definition for use by
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//! applications.
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//!
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//! \return None.
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//
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//*****************************************************************************
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void
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OSRAM128x64x4Clear(void)
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{
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static const unsigned char pucCommand1[] = { 0x15, 0, 63 };
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static const unsigned char pucCommand2[] = { 0x75, 0, 79 };
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unsigned long ulRow, ulColumn;
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static unsigned char pucZeroBuffer[8] = { 0, 0, 0, 0, 0, 0, 0, 0};
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//
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// Set the window to fill the entire display.
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//
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OSRAMWriteCommand(pucCommand1, sizeof(pucCommand1));
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OSRAMWriteCommand(pucCommand2, sizeof(pucCommand2));
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OSRAMWriteCommand(g_pucOSRAM128x64x4VerticalInc,
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sizeof(g_pucOSRAM128x64x4VerticalInc));
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//
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// In vertical address increment mode, loop through each column, filling
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// each row with 0.
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//
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for(ulColumn = 0; ulColumn < (128/2); ulColumn++)
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{
|
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//
|
|
// 8 rows (bytes) per row of text.
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//
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for(ulRow = 0; ulRow < 80; ulRow += 8)
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{
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OSRAMWriteData(pucZeroBuffer, sizeof(pucZeroBuffer));
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}
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}
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}
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|
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//*****************************************************************************
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//
|
|
//! Displays a string on the OLED display.
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//!
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|
//! \param pcStr is a pointer to the string to display.
|
|
//! \param ulX is the horizontal position to display the string, specified in
|
|
//! columns from the left edge of the display.
|
|
//! \param ulY is the vertical position to display the string, specified in
|
|
//! rows from the top edge of the display.
|
|
//! \param ucLevel is the 4-bit grey scale value to be used for displayed text.
|
|
//!
|
|
//! This function will draw a string on the display. Only the ASCII characters
|
|
//! between 32 (space) and 126 (tilde) are supported; other characters will
|
|
//! result in random data being draw on the display (based on whatever appears
|
|
//! before/after the font in memory). The font is mono-spaced, so characters
|
|
//! such as "i" and "l" have more white space around them than characters such
|
|
//! as "m" or "w".
|
|
//!
|
|
//! If the drawing of the string reaches the right edge of the display, no more
|
|
//! characters will be drawn. Therefore, special care is not required to avoid
|
|
//! supplying a string that is "too long" to display.
|
|
//!
|
|
//! This function is contained in <tt>osram128x64x4.c</tt>, with
|
|
//! <tt>osram128x64x4.h</tt> containing the API definition for use by
|
|
//! applications.
|
|
//!
|
|
//! \note Because the OLED display packs 2 pixels of data in a single byte, the
|
|
//! parameter \e ulX must be an even column number (e.g. 0, 2, 4, etc).
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
void
|
|
OSRAM128x64x4StringDraw(const char *pcStr, unsigned long ulX,
|
|
unsigned long ulY, unsigned char ucLevel)
|
|
{
|
|
static unsigned char pucBuffer[8];
|
|
unsigned long ulIdx1, ulIdx2;
|
|
unsigned char ucTemp;
|
|
|
|
//
|
|
// Check the arguments.
|
|
//
|
|
ASSERT(ulX < 128);
|
|
ASSERT((ulX & 1) == 0);
|
|
ASSERT(ulY < 64);
|
|
ASSERT(ucLevel < 16);
|
|
|
|
//
|
|
// Setup a window starting at the specified column and row, ending
|
|
// at the right edge of the display and 8 rows down (single character row).
|
|
//
|
|
pucBuffer[0] = 0x15;
|
|
pucBuffer[1] = ulX / 2;
|
|
pucBuffer[2] = 63;
|
|
OSRAMWriteCommand(pucBuffer, 3);
|
|
pucBuffer[0] = 0x75;
|
|
pucBuffer[1] = ulY;
|
|
pucBuffer[2] = ulY + 7;
|
|
OSRAMWriteCommand(pucBuffer, 3);
|
|
OSRAMWriteCommand(g_pucOSRAM128x64x4VerticalInc,
|
|
sizeof(g_pucOSRAM128x64x4VerticalInc));
|
|
|
|
//
|
|
// Loop while there are more characters in the string.
|
|
//
|
|
while(*pcStr != 0)
|
|
{
|
|
//
|
|
// Get a working copy of the current character and convert to an
|
|
// index into the character bit-map array.
|
|
//
|
|
ucTemp = *pcStr;
|
|
ucTemp &= 0x7F;
|
|
if(ucTemp < ' ')
|
|
{
|
|
ucTemp = ' ';
|
|
}
|
|
else
|
|
{
|
|
ucTemp -= ' ';
|
|
}
|
|
|
|
//
|
|
// Build and display the character buffer.
|
|
//
|
|
for(ulIdx1 = 0; ulIdx1 < 3; ulIdx1++)
|
|
{
|
|
//
|
|
// Convert two columns of 1-bit font data into a single data
|
|
// byte column of 4-bit font data.
|
|
//
|
|
for(ulIdx2 = 0; ulIdx2 < 8; ulIdx2++)
|
|
{
|
|
pucBuffer[ulIdx2] = 0;
|
|
if(g_pucFont[ucTemp][ulIdx1*2] & (1 << ulIdx2))
|
|
{
|
|
pucBuffer[ulIdx2] = ((ucLevel << 4) & 0xf0);
|
|
}
|
|
if((ulIdx1 < 2) &&
|
|
(g_pucFont[ucTemp][ulIdx1*2+1] & (1 << ulIdx2)))
|
|
{
|
|
pucBuffer[ulIdx2] |= ((ucLevel << 0) & 0x0f);
|
|
}
|
|
}
|
|
|
|
//
|
|
// If there is room, dump the single data byte column to the
|
|
// display. Otherwise, bail out.
|
|
//
|
|
if(ulX < 126)
|
|
{
|
|
OSRAMWriteData(pucBuffer, 8);
|
|
ulX += 2;
|
|
}
|
|
else
|
|
{
|
|
return;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Advance to the next character.
|
|
//
|
|
pcStr++;
|
|
}
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Displays an image on the OLED display.
|
|
//!
|
|
//! \param pucImage is a pointer to the image data.
|
|
//! \param ulX is the horizontal position to display this image, specified in
|
|
//! columns from the left edge of the display.
|
|
//! \param ulY is the vertical position to display this image, specified in
|
|
//! rows from the top of the display.
|
|
//! \param ulWidth is the width of the image, specified in columns.
|
|
//! \param ulHeight is the height of the image, specified in rows.
|
|
//!
|
|
//! This function will display a bitmap graphic on the display. Because of the
|
|
//! format of the display RAM, the starting column (/e ulX) and the number of
|
|
//! columns (/e ulWidth) must be an integer multiple of two.
|
|
//!
|
|
//! The image data is organized with the first row of image data appearing left
|
|
//! to right, followed immediately by the second row of image data. Each byte
|
|
//! contains the data for two columns in the current row, with the leftmost
|
|
//! column being contained in bits 7:4 and the rightmost column being contained
|
|
//! in bits 3:0.
|
|
//!
|
|
//! For example, an image six columns wide and seven scan lines tall would
|
|
//! be arranged as follows (showing how the twenty one bytes of the image would
|
|
//! appear on the display):
|
|
//!
|
|
//! \verbatim
|
|
//! +-------------------+-------------------+-------------------+
|
|
//! | Byte 0 | Byte 1 | Byte 2 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | Byte 3 | Byte 4 | Byte 5 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | Byte 6 | Byte 7 | Byte 8 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | Byte 9 | Byte 10 | Byte 11 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | Byte 12 | Byte 13 | Byte 14 |
|
|
//! +---------+---------+---------+--3------+---------+---------+
|
|
//! | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | Byte 15 | Byte 16 | Byte 17 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | Byte 18 | Byte 19 | Byte 20 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 | 7 6 5 4 | 3 2 1 0 |
|
|
//! +---------+---------+---------+---------+---------+---------+
|
|
//! \endverbatim
|
|
//!
|
|
//! This function is contained in <tt>osram128x64x4.c</tt>, with
|
|
//! <tt>osram128x64x4.h</tt> containing the API definition for use by`
|
|
//! applications.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
void
|
|
OSRAM128x64x4ImageDraw(const unsigned char *pucImage, unsigned long ulX,
|
|
unsigned long ulY, unsigned long ulWidth,
|
|
unsigned long ulHeight)
|
|
{
|
|
static unsigned char pucBuffer[8];
|
|
|
|
//
|
|
// Check the arguments.
|
|
//
|
|
ASSERT(ulX < 128);
|
|
ASSERT((ulX & 1) == 0);
|
|
ASSERT(ulY < 64);
|
|
ASSERT((ulX + ulWidth) <= 128);
|
|
ASSERT((ulY + ulHeight) <= 64);
|
|
ASSERT((ulWidth & 1) == 0);
|
|
|
|
//
|
|
// Setup a window starting at the specified column and row, and ending
|
|
// at the column + width and row+height.
|
|
//
|
|
pucBuffer[0] = 0x15;
|
|
pucBuffer[1] = ulX / 2;
|
|
pucBuffer[2] = (ulX + ulWidth - 2) / 2;
|
|
OSRAMWriteCommand(pucBuffer, 3);
|
|
pucBuffer[0] = 0x75;
|
|
pucBuffer[1] = ulY;
|
|
pucBuffer[2] = ulY + ulHeight - 1;
|
|
OSRAMWriteCommand(pucBuffer, 3);
|
|
OSRAMWriteCommand(g_pucOSRAM128x64x4HorizontalInc,
|
|
sizeof(g_pucOSRAM128x64x4HorizontalInc));
|
|
|
|
//
|
|
// Loop while there are more rows to display.
|
|
//
|
|
while(ulHeight--)
|
|
{
|
|
//
|
|
// Write this row of image data.
|
|
//
|
|
OSRAMWriteData(pucImage, (ulWidth / 2));
|
|
|
|
//
|
|
// Advance to the next row of the image.
|
|
//
|
|
pucImage += (ulWidth / 2);
|
|
}
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Enable the SSI component of the OLED display driver.
|
|
//!
|
|
//! \param ulFrequency specifies the SSI Clock Frequency to be used.
|
|
//!
|
|
//! This function initializes the SSI interface to the OLED display.
|
|
//!
|
|
//! This function is contained in <tt>osram128x64x4.c</tt>, with
|
|
//! <tt>osram128x64x4.h</tt> containing the API definition for use by
|
|
//! applications.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
void
|
|
OSRAM128x64x4Enable(unsigned long ulFrequency)
|
|
{
|
|
unsigned long ulTemp;
|
|
|
|
//
|
|
// Disable the SSI port.
|
|
//
|
|
SSIDisable(SSI0_BASE);
|
|
|
|
//
|
|
// Configure the SSI0 port for master mode.
|
|
//
|
|
SSIConfig(SSI0_BASE, SSI_FRF_MOTO_MODE_2, SSI_MODE_MASTER, ulFrequency, 8);
|
|
|
|
//
|
|
// (Re)Enable SSI control of the FSS pin.
|
|
//
|
|
GPIOPinTypeSSI(GPIO_PORTA_BASE, GPIO_PIN_3);
|
|
GPIOPadConfigSet(GPIO_PORTA_BASE, GPIO_PIN_3, GPIO_STRENGTH_8MA,
|
|
GPIO_PIN_TYPE_STD_WPU);
|
|
|
|
//
|
|
// Enable the SSI port.
|
|
//
|
|
SSIEnable(SSI0_BASE);
|
|
|
|
//
|
|
// Drain the receive fifo.
|
|
//
|
|
while(SSIDataNonBlockingGet(SSI0_BASE, &ulTemp) != 0)
|
|
{
|
|
}
|
|
|
|
//
|
|
// Indicate that the OSRAM driver can use the SSI Port.
|
|
//
|
|
g_bSSIEnabled = true;
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Enable the SSI component of the OLED display driver.
|
|
//!
|
|
//! \param ulFrequency specifies the SSI Clock Frequency to be used.
|
|
//!
|
|
//! This function initializes the SSI interface to the OLED display.
|
|
//!
|
|
//! This function is contained in <tt>osram128x64x4.c</tt>, with
|
|
//! <tt>osram128x64x4.h</tt> containing the API definition for use by
|
|
//! applications.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
void
|
|
OSRAM128x64x4Disable(void)
|
|
{
|
|
unsigned long ulTemp;
|
|
|
|
//
|
|
// Indicate that the OSRAM driver can no longer use the SSI Port.
|
|
//
|
|
g_bSSIEnabled = false;
|
|
|
|
//
|
|
// Drain the receive fifo.
|
|
//
|
|
while(SSIDataNonBlockingGet(SSI0_BASE, &ulTemp) != 0)
|
|
{
|
|
}
|
|
|
|
//
|
|
// Disable the SSI port.
|
|
//
|
|
SSIDisable(SSI0_BASE);
|
|
|
|
//
|
|
// Disable SSI control of the FSS pin.
|
|
//
|
|
GPIODirModeSet(GPIO_PORTA_BASE, GPIO_PIN_3, GPIO_DIR_MODE_OUT);
|
|
GPIOPadConfigSet(GPIO_PORTA_BASE, GPIO_PIN_3, GPIO_STRENGTH_8MA,
|
|
GPIO_PIN_TYPE_STD_WPU);
|
|
GPIOPinWrite(GPIO_PORTA_BASE, GPIO_PIN_3, GPIO_PIN_3);
|
|
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Initialize the OLED display.
|
|
//!
|
|
//! \param ulFrequency specifies the SSI Clock Frequency to be used.
|
|
//!
|
|
//! This function initializes the SSI interface to the OLED display and
|
|
//! configures the SSD0323 controller on the panel.
|
|
//!
|
|
//! This function is contained in <tt>osram128x64x4.c</tt>, with
|
|
//! <tt>osram128x64x4.h</tt> containing the API definition for use by
|
|
//! applications.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
void
|
|
OSRAM128x64x4Init(unsigned long ulFrequency)
|
|
{
|
|
unsigned long ulIdx;
|
|
|
|
//
|
|
// Enable the SSI0 and GPIO port blocks as they are needed by this driver.
|
|
//
|
|
SysCtlPeripheralEnable(SYSCTL_PERIPH_SSI0);
|
|
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
|
|
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
|
|
|
|
//
|
|
// Configure the SSI0CLK and SSIOTX pins for SSI operation.
|
|
//
|
|
GPIOPinTypeSSI(GPIO_PORTA_BASE, GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_5);
|
|
GPIOPadConfigSet(GPIO_PORTA_BASE, GPIO_PIN_2, GPIO_STRENGTH_8MA,
|
|
GPIO_PIN_TYPE_STD_WPU);
|
|
GPIOPadConfigSet(GPIO_PORTA_BASE, GPIO_PIN_3, GPIO_STRENGTH_8MA,
|
|
GPIO_PIN_TYPE_STD_WPU);
|
|
GPIOPadConfigSet(GPIO_PORTA_BASE, GPIO_PIN_5, GPIO_STRENGTH_8MA,
|
|
GPIO_PIN_TYPE_STD_WPU);
|
|
|
|
//
|
|
// Configure the PC7 pin as a D/Cn signal for OLED device.
|
|
//
|
|
GPIODirModeSet(GPIO_PORTC_BASE, GPIO_PIN_7, GPIO_DIR_MODE_OUT);
|
|
GPIOPadConfigSet(GPIO_PORTC_BASE, GPIO_PIN_7, GPIO_STRENGTH_8MA,
|
|
GPIO_PIN_TYPE_STD);
|
|
GPIOPinWrite(GPIO_PORTC_BASE, GPIO_PIN_7, GPIO_PIN_7);
|
|
|
|
//
|
|
// Configure and enable the SSI0 port for master mode.
|
|
//
|
|
OSRAM128x64x4Enable(ulFrequency);
|
|
|
|
//
|
|
// Clear the frame buffer.
|
|
//
|
|
OSRAM128x64x4Clear();
|
|
|
|
//
|
|
// Initialize the SSD0323 controller. Loop through the initialization
|
|
// sequence array, sending each command "string" to the controller.
|
|
//
|
|
for(ulIdx = 0; ulIdx < sizeof(g_pucOSRAM128x64x4Init);
|
|
ulIdx += g_pucOSRAM128x64x4Init[ulIdx] + 1)
|
|
{
|
|
//
|
|
// Send this command.
|
|
//
|
|
OSRAMWriteCommand(g_pucOSRAM128x64x4Init + ulIdx + 1,
|
|
g_pucOSRAM128x64x4Init[ulIdx] - 1);
|
|
}
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Turns on the OLED display.
|
|
//!
|
|
//! This function will turn on the OLED display, causing it to display the
|
|
//! contents of its internal frame buffer.
|
|
//!
|
|
//! This function is contained in <tt>osram128x64x4.c</tt>, with
|
|
//! <tt>osram128x64x4.h</tt> containing the API definition for use by
|
|
//! applications.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
void
|
|
OSRAM128x64x4DisplayOn(void)
|
|
{
|
|
unsigned long ulIdx;
|
|
|
|
//
|
|
// Initialize the SSD0323 controller. Loop through the initialization
|
|
// sequence array, sending each command "string" to the controller.
|
|
//
|
|
for(ulIdx = 0; ulIdx < sizeof(g_pucOSRAM128x64x4Init);
|
|
ulIdx += g_pucOSRAM128x64x4Init[ulIdx] + 1)
|
|
{
|
|
//
|
|
// Send this command.
|
|
//
|
|
OSRAMWriteCommand(g_pucOSRAM128x64x4Init + ulIdx + 1,
|
|
g_pucOSRAM128x64x4Init[ulIdx] - 1);
|
|
}
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Turns off the OLED display.
|
|
//!
|
|
//! This function will turn off the OLED display. This will stop the scanning
|
|
//! of the panel and turn off the on-chip DC-DC converter, preventing damage to
|
|
//! the panel due to burn-in (it has similar characters to a CRT in this
|
|
//! respect).
|
|
//!
|
|
//! This function is contained in <tt>osram128x64x4.c</tt>, with
|
|
//! <tt>osram128x64x4.h</tt> containing the API definition for use by
|
|
//! applications.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
void
|
|
OSRAM128x64x4DisplayOff(void)
|
|
{
|
|
static const unsigned char pucCommand1[] =
|
|
{
|
|
0xAE, 0xAD, 0x02
|
|
};
|
|
|
|
//
|
|
// Turn off the DC-DC converter and the display.
|
|
//
|
|
OSRAMWriteCommand(pucCommand1, sizeof(pucCommand1));
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// Close the Doxygen group.
|
|
//! @}
|
|
//
|
|
//*****************************************************************************
|